Hi,
I have been doing some load testing with Kamailio and having some issues.
I have been trying with 100 CPS and at the beginning, everything is working well but after some time (it can be 10 minutes or for example 40 minutes, is just random but normally happens more in the first 10 minutes) Kamailio stop replying to all SIP messages but still processing HTTP requests, some commands, etc.
If I use "kamcmd dlg.list" no output happens and after that, all kamcmd commands just keep loading with no output.
Kamailio is sharing Dialogs and htables using DMQ with other Kamailio that is the failover, if I shut down the failover one (so no DMQ replication), the test works well with the 100 CPS.
Also tried with modparam("dmq", "worker_usleep", 1000) but the behavior is the same, it will stop processing traffic.
This is some of configuration used:
# ----------------- setting module-specific parameters --------------- modparam("dmq", "server_address", "sip:INTERNAL_INSTANCE_IP:5060") modparam("dmq", "notification_address", "DMQ_NOTIFICATION_ADDRESS")
modparam("dmq", "multi_notify", 1) modparam("dmq", "ping_interval", 10) modparam("dmq", "num_workers",4)
modparam("htable", "enable_dmq", 1) modparam("htable", "dmq_init_sync", 1)
# ----- dialog params ----- modparam("dialog", "dlg_flag", FLD_DLG) modparam("dialog", "dlg_match_mode", 1) modparam("dialog", "db_url", DBURL_RW) modparam("dialog", "db_mode", 0) modparam("dialog", "enable_dmq", 1) modparam("dialog", "db_update_period", 10) modparam("dialog", "h_id_start", H_ID_START) modparam("dialog", "h_id_step", H_ID_STEP)
Memory:
Shared: 4096 Private: 512
kamailio -v version: kamailio 5.5.3 (x86_64/linux) 473cef flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLOCKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: 473cef compiled on 09:34:57 Dec 20 2021 with gcc 10.2.1
In attach is the trap collected after the issue happens. Any more logs or configurations that can help identify or solve the issue?
Thanks for the help, Regards, Tiago
What is the call length of each call? How many NICs you have on that server? what networking switches are you using? all these variables have huge impacts on the call flow!
Let's say you make 100CPS and the call length is 10 minutes. At 10 seconds you will have 1.000 ongoing calls using g711 (64kbps). You will have around 64Mbps bandwidth being used. At 1 minute you get 6.000 ongoing calls and will use 390Mbps bandwidth! Near the 10th minute you will be using almost 4Gbps bandwidth and 60.000 ongoing calls!!
Maybe the issue is not within Kamailio and/or the media server, but within your network capacity ...
On my side, on a 4 vCPU and 4GB Ram, Kamailio 5.2 gets me around 400cps with calls up to 30seconds length, and RTPEngine goes OK too. I am sure I could do more, but I don't bother much, this is more than enough! But I have an enormous amount of bandwidth and 3 NICs on the server. NICs are the key . Remember that Kamailio only processes SIP messages. At 5 minutes, using the above call details, you've already sent 30.000 SIP INVITES minimum and many more SIP messages during that time. You need a very good network interface to do that kind of job! Add 30.000 channels / RTP ports to your media server and you get a whole lot of data going on in your network. I bet even the UTP5 cables won't handle the heat =:o)
Also, check the RTP port range your media server was configured with. On Asterisk, usually ports 10.000 to 20.000 are set, which is about 10.000 calls. In the above example, you would stop receiving calls at 2minutes because Asterisk has all RTP ports busy/in use! I don't know about other media servers, but I would bet this is pretty much the same...
Hope this helps!
*Sérgio Charrua*
*www.voip.pt http://www.voip.pt/* Tel.: +351 callto:+351+91+104+12+6621 130 71 77
Email : *sergio.charrua@voip.pt sergio.charrua@voip.pt*
This message and any files or documents attached are strictly confidential or otherwise legally protected.
It is intended only for the individual or entity named. If you are not the named addressee or have received this email in error, please inform the sender immediately, delete it from your system and do not copy or disclose it or its contents or use it for any purpose. Please also note that transmission cannot be guaranteed to be secure or error-free.
On Tue, Dec 21, 2021 at 11:54 AM pwerspire pwerspire@gmail.com wrote:
Hi,
I have been doing some load testing with Kamailio and having some issues.
I have been trying with 100 CPS and at the beginning, everything is working well but after some time (it can be 10 minutes or for example 40 minutes, is just random but normally happens more in the first 10 minutes) Kamailio stop replying to all SIP messages but still processing HTTP requests, some commands, etc.
If I use "kamcmd dlg.list" no output happens and after that, all kamcmd commands just keep loading with no output.
Kamailio is sharing Dialogs and htables using DMQ with other Kamailio that is the failover, if I shut down the failover one (so no DMQ replication), the test works well with the 100 CPS.
Also tried with modparam("dmq", "worker_usleep", 1000) but the behavior is the same, it will stop processing traffic.
This is some of configuration used:
# ----------------- setting module-specific parameters --------------- modparam("dmq", "server_address", "sip:INTERNAL_INSTANCE_IP:5060") modparam("dmq", "notification_address", "DMQ_NOTIFICATION_ADDRESS")
modparam("dmq", "multi_notify", 1) modparam("dmq", "ping_interval", 10) modparam("dmq", "num_workers",4)
modparam("htable", "enable_dmq", 1) modparam("htable", "dmq_init_sync", 1)
# ----- dialog params ----- modparam("dialog", "dlg_flag", FLD_DLG) modparam("dialog", "dlg_match_mode", 1) modparam("dialog", "db_url", DBURL_RW) modparam("dialog", "db_mode", 0) modparam("dialog", "enable_dmq", 1) modparam("dialog", "db_update_period", 10) modparam("dialog", "h_id_start", H_ID_START) modparam("dialog", "h_id_step", H_ID_STEP)
Memory:
Shared: 4096 Private: 512
kamailio -v version: kamailio 5.5.3 (x86_64/linux) 473cef flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLOCKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: 473cef compiled on 09:34:57 Dec 20 2021 with gcc 10.2.1
In attach is the trap collected after the issue happens. Any more logs or configurations that can help identify or solve the issue?
Thanks for the help, Regards, Tiago __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions
- sr-users@lists.kamailio.org
Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe:
Hi Sergio,
Thanks for your reply.
This is a google cloud VM with 8 vCPU, I'm using 100 CPS but the number of simultaneous calls is stable at around 1071 at any given time.
Also, I can always see INVITES going inside the server but Kamailio stops answering them, even if you stop sending calls for a long time, and then send a single call, Kamailio will not reply anymore to the Invites.
When Kamailio stops replying to INVITES, If I do for example a "kamcmd dispatcher.list" I have the correct output, but if I do a "kamcmd dlg.list" it will not provide any output and not give back the prompt( before it would just answer that the reply was too big). I will need to use "control + c" to get the prompt of the shell back and after that, all kamcmd commands stop returning any output or giving back the prompt.
If the Kamailio is then restarted, everything starts working correctly again. Also, another note is that this seems only to happen when DMQ is in use and replicating to the fallback Kamailio.
Regards, Tiago
Sergio Charrua sergio.charrua@voip.pt escreveu no dia terça, 21/12/2021 à(s) 13:38:
What is the call length of each call? How many NICs you have on that server? what networking switches are you using? all these variables have huge impacts on the call flow!
Let's say you make 100CPS and the call length is 10 minutes. At 10 seconds you will have 1.000 ongoing calls using g711 (64kbps). You will have around 64Mbps bandwidth being used. At 1 minute you get 6.000 ongoing calls and will use 390Mbps bandwidth! Near the 10th minute you will be using almost 4Gbps bandwidth and 60.000 ongoing calls!!
Maybe the issue is not within Kamailio and/or the media server, but within your network capacity ...
On my side, on a 4 vCPU and 4GB Ram, Kamailio 5.2 gets me around 400cps with calls up to 30seconds length, and RTPEngine goes OK too. I am sure I could do more, but I don't bother much, this is more than enough! But I have an enormous amount of bandwidth and 3 NICs on the server. NICs are the key . Remember that Kamailio only processes SIP messages. At 5 minutes, using the above call details, you've already sent 30.000 SIP INVITES minimum and many more SIP messages during that time. You need a very good network interface to do that kind of job! Add 30.000 channels / RTP ports to your media server and you get a whole lot of data going on in your network. I bet even the UTP5 cables won't handle the heat =:o)
Also, check the RTP port range your media server was configured with. On Asterisk, usually ports 10.000 to 20.000 are set, which is about 10.000 calls. In the above example, you would stop receiving calls at 2minutes because Asterisk has all RTP ports busy/in use! I don't know about other media servers, but I would bet this is pretty much the same...
Hope this helps!
*Sérgio Charrua*
*www.voip.pt http://www.voip.pt/* Tel.: +351 callto:+351+91+104+12+6621 130 71 77
Email : *sergio.charrua@voip.pt sergio.charrua@voip.pt*
This message and any files or documents attached are strictly confidential or otherwise legally protected.
It is intended only for the individual or entity named. If you are not the named addressee or have received this email in error, please inform the sender immediately, delete it from your system and do not copy or disclose it or its contents or use it for any purpose. Please also note that transmission cannot be guaranteed to be secure or error-free.
On Tue, Dec 21, 2021 at 11:54 AM pwerspire pwerspire@gmail.com wrote:
Hi,
I have been doing some load testing with Kamailio and having some issues.
I have been trying with 100 CPS and at the beginning, everything is working well but after some time (it can be 10 minutes or for example 40 minutes, is just random but normally happens more in the first 10 minutes) Kamailio stop replying to all SIP messages but still processing HTTP requests, some commands, etc.
If I use "kamcmd dlg.list" no output happens and after that, all kamcmd commands just keep loading with no output.
Kamailio is sharing Dialogs and htables using DMQ with other Kamailio that is the failover, if I shut down the failover one (so no DMQ replication), the test works well with the 100 CPS.
Also tried with modparam("dmq", "worker_usleep", 1000) but the behavior is the same, it will stop processing traffic.
This is some of configuration used:
# ----------------- setting module-specific parameters --------------- modparam("dmq", "server_address", "sip:INTERNAL_INSTANCE_IP:5060") modparam("dmq", "notification_address", "DMQ_NOTIFICATION_ADDRESS")
modparam("dmq", "multi_notify", 1) modparam("dmq", "ping_interval", 10) modparam("dmq", "num_workers",4)
modparam("htable", "enable_dmq", 1) modparam("htable", "dmq_init_sync", 1)
# ----- dialog params ----- modparam("dialog", "dlg_flag", FLD_DLG) modparam("dialog", "dlg_match_mode", 1) modparam("dialog", "db_url", DBURL_RW) modparam("dialog", "db_mode", 0) modparam("dialog", "enable_dmq", 1) modparam("dialog", "db_update_period", 10) modparam("dialog", "h_id_start", H_ID_START) modparam("dialog", "h_id_step", H_ID_STEP)
Memory:
Shared: 4096 Private: 512
kamailio -v version: kamailio 5.5.3 (x86_64/linux) 473cef flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLOCKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: 473cef compiled on 09:34:57 Dec 20 2021 with gcc 10.2.1
In attach is the trap collected after the issue happens. Any more logs or configurations that can help identify or solve the issue?
Thanks for the help, Regards, Tiago __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions
- sr-users@lists.kamailio.org
Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe:
Kamailio - Users Mailing List - Non Commercial Discussions
- sr-users@lists.kamailio.org
Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe:
any statistics regarding CPU use? how many threads?
*Sérgio Charrua*
*www.voip.pt http://www.voip.pt/* Tel.: +351 callto:+351+91+104+12+6621 130 71 77
Email : *sergio.charrua@voip.pt sergio.charrua@voip.pt*
This message and any files or documents attached are strictly confidential or otherwise legally protected.
It is intended only for the individual or entity named. If you are not the named addressee or have received this email in error, please inform the sender immediately, delete it from your system and do not copy or disclose it or its contents or use it for any purpose. Please also note that transmission cannot be guaranteed to be secure or error-free.
On Wed, Dec 22, 2021 at 3:57 PM pwerspire pwerspire@gmail.com wrote:
Hi Sergio,
Thanks for your reply.
This is a google cloud VM with 8 vCPU, I'm using 100 CPS but the number of simultaneous calls is stable at around 1071 at any given time.
Also, I can always see INVITES going inside the server but Kamailio stops answering them, even if you stop sending calls for a long time, and then send a single call, Kamailio will not reply anymore to the Invites.
When Kamailio stops replying to INVITES, If I do for example a "kamcmd dispatcher.list" I have the correct output, but if I do a "kamcmd dlg.list" it will not provide any output and not give back the prompt( before it would just answer that the reply was too big). I will need to use "control + c" to get the prompt of the shell back and after that, all kamcmd commands stop returning any output or giving back the prompt.
If the Kamailio is then restarted, everything starts working correctly again. Also, another note is that this seems only to happen when DMQ is in use and replicating to the fallback Kamailio.
Regards, Tiago
Sergio Charrua sergio.charrua@voip.pt escreveu no dia terça, 21/12/2021 à(s) 13:38:
What is the call length of each call? How many NICs you have on that server? what networking switches are you using? all these variables have huge impacts on the call flow!
Let's say you make 100CPS and the call length is 10 minutes. At 10 seconds you will have 1.000 ongoing calls using g711 (64kbps). You will have around 64Mbps bandwidth being used. At 1 minute you get 6.000 ongoing calls and will use 390Mbps bandwidth! Near the 10th minute you will be using almost 4Gbps bandwidth and 60.000 ongoing calls!!
Maybe the issue is not within Kamailio and/or the media server, but within your network capacity ...
On my side, on a 4 vCPU and 4GB Ram, Kamailio 5.2 gets me around 400cps with calls up to 30seconds length, and RTPEngine goes OK too. I am sure I could do more, but I don't bother much, this is more than enough! But I have an enormous amount of bandwidth and 3 NICs on the server. NICs are the key . Remember that Kamailio only processes SIP messages. At 5 minutes, using the above call details, you've already sent 30.000 SIP INVITES minimum and many more SIP messages during that time. You need a very good network interface to do that kind of job! Add 30.000 channels / RTP ports to your media server and you get a whole lot of data going on in your network. I bet even the UTP5 cables won't handle the heat =:o)
Also, check the RTP port range your media server was configured with. On Asterisk, usually ports 10.000 to 20.000 are set, which is about 10.000 calls. In the above example, you would stop receiving calls at 2minutes because Asterisk has all RTP ports busy/in use! I don't know about other media servers, but I would bet this is pretty much the same...
Hope this helps!
*Sérgio Charrua*
*www.voip.pt http://www.voip.pt/* Tel.: +351 callto:+351+91+104+12+6621 130 71 77
Email : *sergio.charrua@voip.pt sergio.charrua@voip.pt*
This message and any files or documents attached are strictly confidential or otherwise legally protected.
It is intended only for the individual or entity named. If you are not the named addressee or have received this email in error, please inform the sender immediately, delete it from your system and do not copy or disclose it or its contents or use it for any purpose. Please also note that transmission cannot be guaranteed to be secure or error-free.
On Tue, Dec 21, 2021 at 11:54 AM pwerspire pwerspire@gmail.com wrote:
Hi,
I have been doing some load testing with Kamailio and having some issues.
I have been trying with 100 CPS and at the beginning, everything is working well but after some time (it can be 10 minutes or for example 40 minutes, is just random but normally happens more in the first 10 minutes) Kamailio stop replying to all SIP messages but still processing HTTP requests, some commands, etc.
If I use "kamcmd dlg.list" no output happens and after that, all kamcmd commands just keep loading with no output.
Kamailio is sharing Dialogs and htables using DMQ with other Kamailio that is the failover, if I shut down the failover one (so no DMQ replication), the test works well with the 100 CPS.
Also tried with modparam("dmq", "worker_usleep", 1000) but the behavior is the same, it will stop processing traffic.
This is some of configuration used:
# ----------------- setting module-specific parameters --------------- modparam("dmq", "server_address", "sip:INTERNAL_INSTANCE_IP:5060") modparam("dmq", "notification_address", "DMQ_NOTIFICATION_ADDRESS")
modparam("dmq", "multi_notify", 1) modparam("dmq", "ping_interval", 10) modparam("dmq", "num_workers",4)
modparam("htable", "enable_dmq", 1) modparam("htable", "dmq_init_sync", 1)
# ----- dialog params ----- modparam("dialog", "dlg_flag", FLD_DLG) modparam("dialog", "dlg_match_mode", 1) modparam("dialog", "db_url", DBURL_RW) modparam("dialog", "db_mode", 0) modparam("dialog", "enable_dmq", 1) modparam("dialog", "db_update_period", 10) modparam("dialog", "h_id_start", H_ID_START) modparam("dialog", "h_id_step", H_ID_STEP)
Memory:
Shared: 4096 Private: 512
kamailio -v version: kamailio 5.5.3 (x86_64/linux) 473cef flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLOCKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: 473cef compiled on 09:34:57 Dec 20 2021 with gcc 10.2.1
In attach is the trap collected after the issue happens. Any more logs or configurations that can help identify or solve the issue?
Thanks for the help, Regards, Tiago __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions
- sr-users@lists.kamailio.org
Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe:
Kamailio - Users Mailing List - Non Commercial Discussions
- sr-users@lists.kamailio.org
Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe:
Kamailio - Users Mailing List - Non Commercial Discussions
- sr-users@lists.kamailio.org
Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe:
The CPU is around 30% during the test, is always really stable and memory doesn't increase much.
I'm using children=8.
Sergio Charrua sergio.charrua@voip.pt escreveu no dia quarta, 22/12/2021 à(s) 16:27:
any statistics regarding CPU use? how many threads?
*Sérgio Charrua*
*www.voip.pt http://www.voip.pt/* Tel.: +351 callto:+351+91+104+12+6621 130 71 77
Email : *sergio.charrua@voip.pt sergio.charrua@voip.pt*
This message and any files or documents attached are strictly confidential or otherwise legally protected.
It is intended only for the individual or entity named. If you are not the named addressee or have received this email in error, please inform the sender immediately, delete it from your system and do not copy or disclose it or its contents or use it for any purpose. Please also note that transmission cannot be guaranteed to be secure or error-free.
On Wed, Dec 22, 2021 at 3:57 PM pwerspire pwerspire@gmail.com wrote:
Hi Sergio,
Thanks for your reply.
This is a google cloud VM with 8 vCPU, I'm using 100 CPS but the number of simultaneous calls is stable at around 1071 at any given time.
Also, I can always see INVITES going inside the server but Kamailio stops answering them, even if you stop sending calls for a long time, and then send a single call, Kamailio will not reply anymore to the Invites.
When Kamailio stops replying to INVITES, If I do for example a "kamcmd dispatcher.list" I have the correct output, but if I do a "kamcmd dlg.list" it will not provide any output and not give back the prompt( before it would just answer that the reply was too big). I will need to use "control + c" to get the prompt of the shell back and after that, all kamcmd commands stop returning any output or giving back the prompt.
If the Kamailio is then restarted, everything starts working correctly again. Also, another note is that this seems only to happen when DMQ is in use and replicating to the fallback Kamailio.
Regards, Tiago
Sergio Charrua sergio.charrua@voip.pt escreveu no dia terça, 21/12/2021 à(s) 13:38:
What is the call length of each call? How many NICs you have on that server? what networking switches are you using? all these variables have huge impacts on the call flow!
Let's say you make 100CPS and the call length is 10 minutes. At 10 seconds you will have 1.000 ongoing calls using g711 (64kbps). You will have around 64Mbps bandwidth being used. At 1 minute you get 6.000 ongoing calls and will use 390Mbps bandwidth! Near the 10th minute you will be using almost 4Gbps bandwidth and 60.000 ongoing calls!!
Maybe the issue is not within Kamailio and/or the media server, but within your network capacity ...
On my side, on a 4 vCPU and 4GB Ram, Kamailio 5.2 gets me around 400cps with calls up to 30seconds length, and RTPEngine goes OK too. I am sure I could do more, but I don't bother much, this is more than enough! But I have an enormous amount of bandwidth and 3 NICs on the server. NICs are the key . Remember that Kamailio only processes SIP messages. At 5 minutes, using the above call details, you've already sent 30.000 SIP INVITES minimum and many more SIP messages during that time. You need a very good network interface to do that kind of job! Add 30.000 channels / RTP ports to your media server and you get a whole lot of data going on in your network. I bet even the UTP5 cables won't handle the heat =:o)
Also, check the RTP port range your media server was configured with. On Asterisk, usually ports 10.000 to 20.000 are set, which is about 10.000 calls. In the above example, you would stop receiving calls at 2minutes because Asterisk has all RTP ports busy/in use! I don't know about other media servers, but I would bet this is pretty much the same...
Hope this helps!
*Sérgio Charrua*
*www.voip.pt http://www.voip.pt/* Tel.: +351 callto:+351+91+104+12+6621 130 71 77
Email : *sergio.charrua@voip.pt sergio.charrua@voip.pt*
This message and any files or documents attached are strictly confidential or otherwise legally protected.
It is intended only for the individual or entity named. If you are not the named addressee or have received this email in error, please inform the sender immediately, delete it from your system and do not copy or disclose it or its contents or use it for any purpose. Please also note that transmission cannot be guaranteed to be secure or error-free.
On Tue, Dec 21, 2021 at 11:54 AM pwerspire pwerspire@gmail.com wrote:
Hi,
I have been doing some load testing with Kamailio and having some issues.
I have been trying with 100 CPS and at the beginning, everything is working well but after some time (it can be 10 minutes or for example 40 minutes, is just random but normally happens more in the first 10 minutes) Kamailio stop replying to all SIP messages but still processing HTTP requests, some commands, etc.
If I use "kamcmd dlg.list" no output happens and after that, all kamcmd commands just keep loading with no output.
Kamailio is sharing Dialogs and htables using DMQ with other Kamailio that is the failover, if I shut down the failover one (so no DMQ replication), the test works well with the 100 CPS.
Also tried with modparam("dmq", "worker_usleep", 1000) but the behavior is the same, it will stop processing traffic.
This is some of configuration used:
# ----------------- setting module-specific parameters --------------- modparam("dmq", "server_address", "sip:INTERNAL_INSTANCE_IP:5060") modparam("dmq", "notification_address", "DMQ_NOTIFICATION_ADDRESS")
modparam("dmq", "multi_notify", 1) modparam("dmq", "ping_interval", 10) modparam("dmq", "num_workers",4)
modparam("htable", "enable_dmq", 1) modparam("htable", "dmq_init_sync", 1)
# ----- dialog params ----- modparam("dialog", "dlg_flag", FLD_DLG) modparam("dialog", "dlg_match_mode", 1) modparam("dialog", "db_url", DBURL_RW) modparam("dialog", "db_mode", 0) modparam("dialog", "enable_dmq", 1) modparam("dialog", "db_update_period", 10) modparam("dialog", "h_id_start", H_ID_START) modparam("dialog", "h_id_step", H_ID_STEP)
Memory:
Shared: 4096 Private: 512
kamailio -v version: kamailio 5.5.3 (x86_64/linux) 473cef flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLOCKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: 473cef compiled on 09:34:57 Dec 20 2021 with gcc 10.2.1
In attach is the trap collected after the issue happens. Any more logs or configurations that can help identify or solve the issue?
Thanks for the help, Regards, Tiago __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions
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Check with htop if you don't have any kamailio procs at 100% CPU (due to a deadlock). Do you see any errors in the logs?
-ovidiu
On Wed, Dec 22, 2021 at 11:44 AM pwerspire pwerspire@gmail.com wrote:
The CPU is around 30% during the test, is always really stable and memory doesn't increase much.
I'm using children=8.
Sergio Charrua sergio.charrua@voip.pt escreveu no dia quarta, 22/12/2021 à(s) 16:27:
any statistics regarding CPU use? how many threads?
Sérgio Charrua
www.voip.pt Tel.: +351 21 130 71 77
Email : sergio.charrua@voip.pt
This message and any files or documents attached are strictly confidential or otherwise legally protected.
It is intended only for the individual or entity named. If you are not the named addressee or have received this email in error, please inform the sender immediately, delete it from your system and do not copy or disclose it or its contents or use it for any purpose. Please also note that transmission cannot be guaranteed to be secure or error-free.
On Wed, Dec 22, 2021 at 3:57 PM pwerspire pwerspire@gmail.com wrote:
Hi Sergio,
Thanks for your reply.
This is a google cloud VM with 8 vCPU, I'm using 100 CPS but the number of simultaneous calls is stable at around 1071 at any given time.
Also, I can always see INVITES going inside the server but Kamailio stops answering them, even if you stop sending calls for a long time, and then send a single call, Kamailio will not reply anymore to the Invites.
When Kamailio stops replying to INVITES, If I do for example a "kamcmd dispatcher.list" I have the correct output, but if I do a "kamcmd dlg.list" it will not provide any output and not give back the prompt( before it would just answer that the reply was too big). I will need to use "control + c" to get the prompt of the shell back and after that, all kamcmd commands stop returning any output or giving back the prompt.
If the Kamailio is then restarted, everything starts working correctly again. Also, another note is that this seems only to happen when DMQ is in use and replicating to the fallback Kamailio.
Regards, Tiago
Sergio Charrua sergio.charrua@voip.pt escreveu no dia terça, 21/12/2021 à(s) 13:38:
What is the call length of each call? How many NICs you have on that server? what networking switches are you using? all these variables have huge impacts on the call flow!
Let's say you make 100CPS and the call length is 10 minutes. At 10 seconds you will have 1.000 ongoing calls using g711 (64kbps). You will have around 64Mbps bandwidth being used. At 1 minute you get 6.000 ongoing calls and will use 390Mbps bandwidth! Near the 10th minute you will be using almost 4Gbps bandwidth and 60.000 ongoing calls!!
Maybe the issue is not within Kamailio and/or the media server, but within your network capacity ...
On my side, on a 4 vCPU and 4GB Ram, Kamailio 5.2 gets me around 400cps with calls up to 30seconds length, and RTPEngine goes OK too. I am sure I could do more, but I don't bother much, this is more than enough! But I have an enormous amount of bandwidth and 3 NICs on the server. NICs are the key . Remember that Kamailio only processes SIP messages. At 5 minutes, using the above call details, you've already sent 30.000 SIP INVITES minimum and many more SIP messages during that time. You need a very good network interface to do that kind of job! Add 30.000 channels / RTP ports to your media server and you get a whole lot of data going on in your network. I bet even the UTP5 cables won't handle the heat =:o)
Also, check the RTP port range your media server was configured with. On Asterisk, usually ports 10.000 to 20.000 are set, which is about 10.000 calls. In the above example, you would stop receiving calls at 2minutes because Asterisk has all RTP ports busy/in use! I don't know about other media servers, but I would bet this is pretty much the same...
Hope this helps!
Sérgio Charrua
www.voip.pt Tel.: +351 21 130 71 77
Email : sergio.charrua@voip.pt
This message and any files or documents attached are strictly confidential or otherwise legally protected.
It is intended only for the individual or entity named. If you are not the named addressee or have received this email in error, please inform the sender immediately, delete it from your system and do not copy or disclose it or its contents or use it for any purpose. Please also note that transmission cannot be guaranteed to be secure or error-free.
On Tue, Dec 21, 2021 at 11:54 AM pwerspire pwerspire@gmail.com wrote:
Hi,
I have been doing some load testing with Kamailio and having some issues.
I have been trying with 100 CPS and at the beginning, everything is working well but after some time (it can be 10 minutes or for example 40 minutes, is just random but normally happens more in the first 10 minutes) Kamailio stop replying to all SIP messages but still processing HTTP requests, some commands, etc.
If I use "kamcmd dlg.list" no output happens and after that, all kamcmd commands just keep loading with no output.
Kamailio is sharing Dialogs and htables using DMQ with other Kamailio that is the failover, if I shut down the failover one (so no DMQ replication), the test works well with the 100 CPS.
Also tried with modparam("dmq", "worker_usleep", 1000) but the behavior is the same, it will stop processing traffic.
This is some of configuration used:
# ----------------- setting module-specific parameters --------------- modparam("dmq", "server_address", "sip:INTERNAL_INSTANCE_IP:5060") modparam("dmq", "notification_address", "DMQ_NOTIFICATION_ADDRESS")
modparam("dmq", "multi_notify", 1) modparam("dmq", "ping_interval", 10) modparam("dmq", "num_workers",4)
modparam("htable", "enable_dmq", 1) modparam("htable", "dmq_init_sync", 1)
# ----- dialog params ----- modparam("dialog", "dlg_flag", FLD_DLG) modparam("dialog", "dlg_match_mode", 1) modparam("dialog", "db_url", DBURL_RW) modparam("dialog", "db_mode", 0) modparam("dialog", "enable_dmq", 1) modparam("dialog", "db_update_period", 10) modparam("dialog", "h_id_start", H_ID_START) modparam("dialog", "h_id_step", H_ID_STEP)
Memory:
Shared: 4096 Private: 512
kamailio -v version: kamailio 5.5.3 (x86_64/linux) 473cef flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLOCKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: 473cef compiled on 09:34:57 Dec 20 2021 with gcc 10.2.1
In attach is the trap collected after the issue happens. Any more logs or configurations that can help identify or solve the issue?
Thanks for the help, Regards, Tiago __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions
- sr-users@lists.kamailio.org
Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe:
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Hi,
I just repeated the test and there is no Kamailio process at 100%, they are low all the time even when the issue starts to happen.
I went through the logs and couldn't find any error, unfortunately, with 100 CPS I can't put it on debug mode but only in info.
Regards, Tiago
Ovidiu Sas osas@voipembedded.com escreveu no dia quinta, 23/12/2021 à(s) 03:15:
Check with htop if you don't have any kamailio procs at 100% CPU (due to a deadlock). Do you see any errors in the logs?
-ovidiu
On Wed, Dec 22, 2021 at 11:44 AM pwerspire pwerspire@gmail.com wrote:
The CPU is around 30% during the test, is always really stable and
memory doesn't increase much.
I'm using children=8.
Sergio Charrua sergio.charrua@voip.pt escreveu no dia quarta,
22/12/2021 à(s) 16:27:
any statistics regarding CPU use? how many threads?
Sérgio Charrua
www.voip.pt Tel.: +351 21 130 71 77
Email : sergio.charrua@voip.pt
This message and any files or documents attached are strictly
confidential or otherwise legally protected.
It is intended only for the individual or entity named. If you are not
the named addressee or have received this email in error, please inform the sender immediately, delete it from your system and do not copy or disclose it or its contents or use it for any purpose. Please also note that transmission cannot be guaranteed to be secure or error-free.
On Wed, Dec 22, 2021 at 3:57 PM pwerspire pwerspire@gmail.com wrote:
Hi Sergio,
Thanks for your reply.
This is a google cloud VM with 8 vCPU, I'm using 100 CPS but the
number of simultaneous calls is stable at around 1071 at any given time.
Also, I can always see INVITES going inside the server but Kamailio
stops answering them, even if you stop sending calls for a long time, and then send a single call, Kamailio will not reply anymore to the Invites.
When Kamailio stops replying to INVITES, If I do for example a "kamcmd
dispatcher.list" I have the correct output, but if I do a "kamcmd dlg.list" it will not provide any output and not give back the prompt( before it would just answer that the reply was too big).
I will need to use "control + c" to get the prompt of the shell back
and after that, all kamcmd commands stop returning any output or giving back the prompt.
If the Kamailio is then restarted, everything starts working correctly
again. Also, another note is that this seems only to happen when DMQ is in use and replicating to the fallback Kamailio.
Regards, Tiago
Sergio Charrua sergio.charrua@voip.pt escreveu no dia terça,
21/12/2021 à(s) 13:38:
What is the call length of each call? How many NICs you have on that
server? what networking switches are you using? all these variables have huge impacts on the call flow!
Let's say you make 100CPS and the call length is 10 minutes. At 10 seconds you will have 1.000 ongoing calls using g711 (64kbps).
You will have around 64Mbps bandwidth being used.
At 1 minute you get 6.000 ongoing calls and will use 390Mbps
bandwidth!
Near the 10th minute you will be using almost 4Gbps bandwidth and
60.000 ongoing calls!!
Maybe the issue is not within Kamailio and/or the media server, but
within your network capacity ...
On my side, on a 4 vCPU and 4GB Ram, Kamailio 5.2 gets me around
400cps with calls up to 30seconds length, and RTPEngine goes OK too. I am sure I could do more, but I don't bother much, this is more than enough!
But I have an enormous amount of bandwidth and 3 NICs on the server.
NICs are the key . Remember that Kamailio only processes SIP messages.
At 5 minutes, using the above call details, you've already sent
30.000 SIP INVITES minimum and many more SIP messages during that time. You need a very good network interface to do that kind of job!
Add 30.000 channels / RTP ports to your media server and you get a
whole lot of data going on in your network. I bet even the UTP5 cables won't handle the heat =:o)
Also, check the RTP port range your media server was configured with. On Asterisk, usually ports 10.000 to 20.000 are set, which is about
10.000 calls. In the above example, you would stop receiving calls at 2minutes because Asterisk has all RTP ports busy/in use!
I don't know about other media servers, but I would bet this is
pretty much the same...
Hope this helps!
Sérgio Charrua
www.voip.pt Tel.: +351 21 130 71 77
Email : sergio.charrua@voip.pt
This message and any files or documents attached are strictly
confidential or otherwise legally protected.
It is intended only for the individual or entity named. If you are
not the named addressee or have received this email in error, please inform the sender immediately, delete it from your system and do not copy or disclose it or its contents or use it for any purpose. Please also note that transmission cannot be guaranteed to be secure or error-free.
On Tue, Dec 21, 2021 at 11:54 AM pwerspire pwerspire@gmail.com
wrote:
Hi,
I have been doing some load testing with Kamailio and having some
issues.
I have been trying with 100 CPS and at the beginning, everything is
working well but after some time (it can be 10 minutes or for example 40 minutes, is just random but normally happens more in the first 10 minutes) Kamailio stop replying to all SIP messages but still processing HTTP requests, some commands, etc.
If I use "kamcmd dlg.list" no output happens and after that, all
kamcmd commands just keep loading with no output.
Kamailio is sharing Dialogs and htables using DMQ with other
Kamailio that is the failover, if I shut down the failover one (so no DMQ replication), the test works well with the 100 CPS.
Also tried with modparam("dmq", "worker_usleep", 1000) but the
behavior is the same, it will stop processing traffic.
This is some of configuration used:
# ----------------- setting module-specific parameters
modparam("dmq", "server_address", "sip:INTERNAL_INSTANCE_IP:5060") modparam("dmq", "notification_address", "DMQ_NOTIFICATION_ADDRESS")
modparam("dmq", "multi_notify", 1) modparam("dmq", "ping_interval", 10) modparam("dmq", "num_workers",4)
modparam("htable", "enable_dmq", 1) modparam("htable", "dmq_init_sync", 1)
# ----- dialog params ----- modparam("dialog", "dlg_flag", FLD_DLG) modparam("dialog", "dlg_match_mode", 1) modparam("dialog", "db_url", DBURL_RW) modparam("dialog", "db_mode", 0) modparam("dialog", "enable_dmq", 1) modparam("dialog", "db_update_period", 10) modparam("dialog", "h_id_start", H_ID_START) modparam("dialog", "h_id_step", H_ID_STEP)
Memory:
Shared: 4096 Private: 512
kamailio -v version: kamailio 5.5.3 (x86_64/linux) 473cef flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS,
DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLOCKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED
ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE
1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: 473cef compiled on 09:34:57 Dec 20 2021 with gcc 10.2.1
In attach is the trap collected after the issue happens. Any more logs or configurations that can help identify or solve the
issue?
Thanks for the help, Regards, Tiago __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions
- sr-users@lists.kamailio.org
Important: keep the mailing list in the recipients, do not reply
only to the sender!
Edit mailing list options or unsubscribe:
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to the sender!
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-- VoIP Embedded, Inc. http://www.voipembedded.com
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ok, let's go 1 step at a time.
stop all firewalls, if any. install sngrep SIP monitoring tool on your server start sngrep and then (re)start your test script until you see Kamailio stoping accepting calls check if sngrep receives SIP Invites
Also, please share your kamailio.cfg . It might help too.
obrigado,
*Sérgio Charrua*
*www.voip.pt http://www.voip.pt/* Tel.: +351 callto:+351+91+104+12+6621 130 71 77
Email : *sergio.charrua@voip.pt sergio.charrua@voip.pt*
This message and any files or documents attached are strictly confidential or otherwise legally protected.
It is intended only for the individual or entity named. If you are not the named addressee or have received this email in error, please inform the sender immediately, delete it from your system and do not copy or disclose it or its contents or use it for any purpose. Please also note that transmission cannot be guaranteed to be secure or error-free.
On Mon, Dec 27, 2021 at 12:23 PM pwerspire pwerspire@gmail.com wrote:
Hi,
I just repeated the test and there is no Kamailio process at 100%, they are low all the time even when the issue starts to happen.
I went through the logs and couldn't find any error, unfortunately, with 100 CPS I can't put it on debug mode but only in info.
Regards, Tiago
Ovidiu Sas osas@voipembedded.com escreveu no dia quinta, 23/12/2021 à(s) 03:15:
Check with htop if you don't have any kamailio procs at 100% CPU (due to a deadlock). Do you see any errors in the logs?
-ovidiu
On Wed, Dec 22, 2021 at 11:44 AM pwerspire pwerspire@gmail.com wrote:
The CPU is around 30% during the test, is always really stable and
memory doesn't increase much.
I'm using children=8.
Sergio Charrua sergio.charrua@voip.pt escreveu no dia quarta,
22/12/2021 à(s) 16:27:
any statistics regarding CPU use? how many threads?
Sérgio Charrua
www.voip.pt Tel.: +351 21 130 71 77
Email : sergio.charrua@voip.pt
This message and any files or documents attached are strictly
confidential or otherwise legally protected.
It is intended only for the individual or entity named. If you are not
the named addressee or have received this email in error, please inform the sender immediately, delete it from your system and do not copy or disclose it or its contents or use it for any purpose. Please also note that transmission cannot be guaranteed to be secure or error-free.
On Wed, Dec 22, 2021 at 3:57 PM pwerspire pwerspire@gmail.com wrote:
Hi Sergio,
Thanks for your reply.
This is a google cloud VM with 8 vCPU, I'm using 100 CPS but the
number of simultaneous calls is stable at around 1071 at any given time.
Also, I can always see INVITES going inside the server but Kamailio
stops answering them, even if you stop sending calls for a long time, and then send a single call, Kamailio will not reply anymore to the Invites.
When Kamailio stops replying to INVITES, If I do for example a
"kamcmd dispatcher.list" I have the correct output, but if I do a "kamcmd dlg.list" it will not provide any output and not give back the prompt( before it would just answer that the reply was too big).
I will need to use "control + c" to get the prompt of the shell back
and after that, all kamcmd commands stop returning any output or giving back the prompt.
If the Kamailio is then restarted, everything starts working
correctly again. Also, another note is that this seems only to happen when DMQ is in use and replicating to the fallback Kamailio.
Regards, Tiago
Sergio Charrua sergio.charrua@voip.pt escreveu no dia terça,
21/12/2021 à(s) 13:38:
What is the call length of each call? How many NICs you have on that
server? what networking switches are you using? all these variables have huge impacts on the call flow!
Let's say you make 100CPS and the call length is 10 minutes. At 10 seconds you will have 1.000 ongoing calls using g711 (64kbps).
You will have around 64Mbps bandwidth being used.
At 1 minute you get 6.000 ongoing calls and will use 390Mbps
bandwidth!
Near the 10th minute you will be using almost 4Gbps bandwidth and
60.000 ongoing calls!!
Maybe the issue is not within Kamailio and/or the media server, but
within your network capacity ...
On my side, on a 4 vCPU and 4GB Ram, Kamailio 5.2 gets me around
400cps with calls up to 30seconds length, and RTPEngine goes OK too. I am sure I could do more, but I don't bother much, this is more than enough!
But I have an enormous amount of bandwidth and 3 NICs on the server.
NICs are the key . Remember that Kamailio only processes SIP messages.
At 5 minutes, using the above call details, you've already sent
30.000 SIP INVITES minimum and many more SIP messages during that time. You need a very good network interface to do that kind of job!
Add 30.000 channels / RTP ports to your media server and you get a
whole lot of data going on in your network. I bet even the UTP5 cables won't handle the heat =:o)
Also, check the RTP port range your media server was configured with. On Asterisk, usually ports 10.000 to 20.000 are set, which is about
10.000 calls. In the above example, you would stop receiving calls at 2minutes because Asterisk has all RTP ports busy/in use!
I don't know about other media servers, but I would bet this is
pretty much the same...
Hope this helps!
Sérgio Charrua
www.voip.pt Tel.: +351 21 130 71 77
Email : sergio.charrua@voip.pt
This message and any files or documents attached are strictly
confidential or otherwise legally protected.
It is intended only for the individual or entity named. If you are
not the named addressee or have received this email in error, please inform the sender immediately, delete it from your system and do not copy or disclose it or its contents or use it for any purpose. Please also note that transmission cannot be guaranteed to be secure or error-free.
On Tue, Dec 21, 2021 at 11:54 AM pwerspire pwerspire@gmail.com
wrote:
> > Hi, > > I have been doing some load testing with Kamailio and having some
issues.
> > I have been trying with 100 CPS and at the beginning, everything is
working well but after some time (it can be 10 minutes or for example 40 minutes, is just random but normally happens more in the first 10 minutes) Kamailio stop replying to all SIP messages but still processing HTTP requests, some commands, etc.
> > If I use "kamcmd dlg.list" no output happens and after that, all
kamcmd commands just keep loading with no output.
> > Kamailio is sharing Dialogs and htables using DMQ with other
Kamailio that is the failover, if I shut down the failover one (so no DMQ replication), the test works well with the 100 CPS.
> > Also tried with modparam("dmq", "worker_usleep", 1000) but the
behavior is the same, it will stop processing traffic.
> > This is some of configuration used: > > # ----------------- setting module-specific parameters
> modparam("dmq", "server_address", "sip:INTERNAL_INSTANCE_IP:5060") > modparam("dmq", "notification_address", "DMQ_NOTIFICATION_ADDRESS") > > modparam("dmq", "multi_notify", 1) > modparam("dmq", "ping_interval", 10) > modparam("dmq", "num_workers",4) > > > modparam("htable", "enable_dmq", 1) > modparam("htable", "dmq_init_sync", 1) > > > # ----- dialog params ----- > modparam("dialog", "dlg_flag", FLD_DLG) > modparam("dialog", "dlg_match_mode", 1) > modparam("dialog", "db_url", DBURL_RW) > modparam("dialog", "db_mode", 0) > modparam("dialog", "enable_dmq", 1) > modparam("dialog", "db_update_period", 10) > modparam("dialog", "h_id_start", H_ID_START) > modparam("dialog", "h_id_step", H_ID_STEP) > > Memory: > > Shared: 4096 > Private: 512 > > kamailio -v > version: kamailio 5.5.3 (x86_64/linux) 473cef > flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS,
DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLOCKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED
> ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE
1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
> poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. > id: 473cef > compiled on 09:34:57 Dec 20 2021 with gcc 10.2.1 > > > In attach is the trap collected after the issue happens. > Any more logs or configurations that can help identify or solve the
issue?
> > Thanks for the help, > Regards, > Tiago > __________________________________________________________ > Kamailio - Users Mailing List - Non Commercial Discussions > * sr-users@lists.kamailio.org > Important: keep the mailing list in the recipients, do not reply
only to the sender!
> Edit mailing list options or unsubscribe: > * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
Kamailio - Users Mailing List - Non Commercial Discussions
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Already checked with sngrep and the INVITES are arriving.
I don't believe that is something related to the server because is not normal that when the issue happens, dialog commands like "kamcmd dlg.list" stop returning any prompt. During the time that the issue is not happening yet, the command just returns that is too big, then when Kamailio stops processing the Sip messages, the command will not work anymore.
Unfortunately, I cannot share the kamailio.cfg file.
Thanks, Tiago
Sergio Charrua sergio.charrua@voip.pt escreveu no dia segunda, 27/12/2021 à(s) 14:12:
ok, let's go 1 step at a time.
stop all firewalls, if any. install sngrep SIP monitoring tool on your server start sngrep and then (re)start your test script until you see Kamailio stoping accepting calls check if sngrep receives SIP Invites
Also, please share your kamailio.cfg . It might help too.
obrigado,
*Sérgio Charrua*
*www.voip.pt http://www.voip.pt/* Tel.: +351 callto:+351+91+104+12+6621 130 71 77
Email : *sergio.charrua@voip.pt sergio.charrua@voip.pt*
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On Mon, Dec 27, 2021 at 12:23 PM pwerspire pwerspire@gmail.com wrote:
Hi,
I just repeated the test and there is no Kamailio process at 100%, they are low all the time even when the issue starts to happen.
I went through the logs and couldn't find any error, unfortunately, with 100 CPS I can't put it on debug mode but only in info.
Regards, Tiago
Ovidiu Sas osas@voipembedded.com escreveu no dia quinta, 23/12/2021 à(s) 03:15:
Check with htop if you don't have any kamailio procs at 100% CPU (due to a deadlock). Do you see any errors in the logs?
-ovidiu
On Wed, Dec 22, 2021 at 11:44 AM pwerspire pwerspire@gmail.com wrote:
The CPU is around 30% during the test, is always really stable and
memory doesn't increase much.
I'm using children=8.
Sergio Charrua sergio.charrua@voip.pt escreveu no dia quarta,
22/12/2021 à(s) 16:27:
any statistics regarding CPU use? how many threads?
Sérgio Charrua
www.voip.pt Tel.: +351 21 130 71 77
Email : sergio.charrua@voip.pt
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It is intended only for the individual or entity named. If you are
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On Wed, Dec 22, 2021 at 3:57 PM pwerspire pwerspire@gmail.com
wrote:
Hi Sergio,
Thanks for your reply.
This is a google cloud VM with 8 vCPU, I'm using 100 CPS but the
number of simultaneous calls is stable at around 1071 at any given time.
Also, I can always see INVITES going inside the server but Kamailio
stops answering them, even if you stop sending calls for a long time, and then send a single call, Kamailio will not reply anymore to the Invites.
When Kamailio stops replying to INVITES, If I do for example a
"kamcmd dispatcher.list" I have the correct output, but if I do a "kamcmd dlg.list" it will not provide any output and not give back the prompt( before it would just answer that the reply was too big).
I will need to use "control + c" to get the prompt of the shell back
and after that, all kamcmd commands stop returning any output or giving back the prompt.
If the Kamailio is then restarted, everything starts working
correctly again. Also, another note is that this seems only to happen when DMQ is in use and replicating to the fallback Kamailio.
Regards, Tiago
Sergio Charrua sergio.charrua@voip.pt escreveu no dia terça,
21/12/2021 à(s) 13:38:
> > What is the call length of each call? How many NICs you have on
that server? what networking switches are you using? all these variables have huge impacts on the call flow!
> > Let's say you make 100CPS and the call length is 10 minutes. > At 10 seconds you will have 1.000 ongoing calls using g711
(64kbps). You will have around 64Mbps bandwidth being used.
> At 1 minute you get 6.000 ongoing calls and will use 390Mbps
bandwidth!
> Near the 10th minute you will be using almost 4Gbps bandwidth and
60.000 ongoing calls!!
> > Maybe the issue is not within Kamailio and/or the media server, but
within your network capacity ...
> > On my side, on a 4 vCPU and 4GB Ram, Kamailio 5.2 gets me around
400cps with calls up to 30seconds length, and RTPEngine goes OK too. I am sure I could do more, but I don't bother much, this is more than enough!
> But I have an enormous amount of bandwidth and 3 NICs on the
server. NICs are the key . Remember that Kamailio only processes SIP messages.
> At 5 minutes, using the above call details, you've already sent
30.000 SIP INVITES minimum and many more SIP messages during that time. You need a very good network interface to do that kind of job!
> Add 30.000 channels / RTP ports to your media server and you get a
whole lot of data going on in your network. I bet even the UTP5 cables won't handle the heat =:o)
> > Also, check the RTP port range your media server was configured
with.
> On Asterisk, usually ports 10.000 to 20.000 are set, which is about
10.000 calls. In the above example, you would stop receiving calls at 2minutes because Asterisk has all RTP ports busy/in use!
> I don't know about other media servers, but I would bet this is
pretty much the same...
> > Hope this helps! > > > Sérgio Charrua > > > www.voip.pt > Tel.: +351 21 130 71 77 > > Email : sergio.charrua@voip.pt > > This message and any files or documents attached are strictly
confidential or otherwise legally protected.
> > It is intended only for the individual or entity named. If you are
not the named addressee or have received this email in error, please inform the sender immediately, delete it from your system and do not copy or disclose it or its contents or use it for any purpose. Please also note that transmission cannot be guaranteed to be secure or error-free.
> > > > > > > > > > On Tue, Dec 21, 2021 at 11:54 AM pwerspire pwerspire@gmail.com
wrote:
>> >> Hi, >> >> I have been doing some load testing with Kamailio and having some
issues.
>> >> I have been trying with 100 CPS and at the beginning, everything
is working well but after some time (it can be 10 minutes or for example 40 minutes, is just random but normally happens more in the first 10 minutes) Kamailio stop replying to all SIP messages but still processing HTTP requests, some commands, etc.
>> >> If I use "kamcmd dlg.list" no output happens and after that, all
kamcmd commands just keep loading with no output.
>> >> Kamailio is sharing Dialogs and htables using DMQ with other
Kamailio that is the failover, if I shut down the failover one (so no DMQ replication), the test works well with the 100 CPS.
>> >> Also tried with modparam("dmq", "worker_usleep", 1000) but the
behavior is the same, it will stop processing traffic.
>> >> This is some of configuration used: >> >> # ----------------- setting module-specific parameters
>> modparam("dmq", "server_address", "sip:INTERNAL_INSTANCE_IP:5060") >> modparam("dmq", "notification_address", "DMQ_NOTIFICATION_ADDRESS") >> >> modparam("dmq", "multi_notify", 1) >> modparam("dmq", "ping_interval", 10) >> modparam("dmq", "num_workers",4) >> >> >> modparam("htable", "enable_dmq", 1) >> modparam("htable", "dmq_init_sync", 1) >> >> >> # ----- dialog params ----- >> modparam("dialog", "dlg_flag", FLD_DLG) >> modparam("dialog", "dlg_match_mode", 1) >> modparam("dialog", "db_url", DBURL_RW) >> modparam("dialog", "db_mode", 0) >> modparam("dialog", "enable_dmq", 1) >> modparam("dialog", "db_update_period", 10) >> modparam("dialog", "h_id_start", H_ID_START) >> modparam("dialog", "h_id_step", H_ID_STEP) >> >> Memory: >> >> Shared: 4096 >> Private: 512 >> >> kamailio -v >> version: kamailio 5.5.3 (x86_64/linux) 473cef >> flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS,
DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLOCKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED
>> ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144,
MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
>> poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. >> id: 473cef >> compiled on 09:34:57 Dec 20 2021 with gcc 10.2.1 >> >> >> In attach is the trap collected after the issue happens. >> Any more logs or configurations that can help identify or solve
the issue?
>> >> Thanks for the help, >> Regards, >> Tiago >> __________________________________________________________ >> Kamailio - Users Mailing List - Non Commercial Discussions >> * sr-users@lists.kamailio.org >> Important: keep the mailing list in the recipients, do not reply
only to the sender!
>> Edit mailing list options or unsubscribe: >> * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users > > __________________________________________________________ > Kamailio - Users Mailing List - Non Commercial Discussions > * sr-users@lists.kamailio.org > Important: keep the mailing list in the recipients, do not reply
only to the sender!
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If you can't share your kamailio config for reasons of corporate policy, etc. that makes sense. Perhaps you can share "the simplest configuration possible in which the error occurs"? There shouldn't be any need within the troubleshooting to have the "secret recipe" of your LCR selections, etc. present. Additionally, reducing the problem to the simplest configuration in which it can occur is usually an invaluable tool for problem isolation.
Regards,
Ben Kaufman
From: sr-users sr-users-bounces@lists.kamailio.org On Behalf Of pwerspire Sent: Monday, December 27, 2021 10:45 AM To: Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org Subject: Re: [SR-Users] Kamailio Stop processing SIP traffic
Already checked with sngrep and the INVITES are arriving.
I don't believe that is something related to the server because is not normal that when the issue happens, dialog commands like "kamcmd dlg.list" stop returning any prompt. During the time that the issue is not happening yet, the command just returns that is too big, then when Kamailio stops processing the Sip messages, the command will not work anymore.
Unfortunately, I cannot share the kamailio.cfg file.
Thanks, Tiago
Sergio Charrua <sergio.charrua@voip.ptmailto:sergio.charrua@voip.pt> escreveu no dia segunda, 27/12/2021 à(s) 14:12: ok, let's go 1 step at a time.
stop all firewalls, if any. install sngrep SIP monitoring tool on your server start sngrep and then (re)start your test script until you see Kamailio stoping accepting calls check if sngrep receives SIP Invites
Also, please share your kamailio.cfg . It might help too.
obrigado,
Sérgio Charrua
[http://cdn.shopify.com/s/files/1/0380/5305/t/11/assets/logo.png?114698505119...]
www.voip.pthttps://nam11.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.voip.pt%2F&data=04%7C01%7Cbkaufman%40bcmone.com%7C8ec092506e064d10c44008d9c958c1a7%7Cafc1818e7b6848568913201b9396c4fc%7C1%7C0%7C637762205311842061%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=i3fmRZp9Hzwt%2B6mlAotUaPiex3PrUz5NvlGOMJTkd7I%3D&reserved=0 Tel.: +351 callto:+351+91+104+12+66 21 130 71 77
Email : sergio.charrua@voip.ptmailto:sergio.charrua@voip.pt This message and any files or documents attached are strictly confidential or otherwise legally protected. It is intended only for the individual or entity named. If you are not the named addressee or have received this email in error, please inform the sender immediately, delete it from your system and do not copy or disclose it or its contents or use it for any purpose. Please also note that transmission cannot be guaranteed to be secure or error-free.
On Mon, Dec 27, 2021 at 12:23 PM pwerspire <pwerspire@gmail.commailto:pwerspire@gmail.com> wrote: Hi,
I just repeated the test and there is no Kamailio process at 100%, they are low all the time even when the issue starts to happen.
I went through the logs and couldn't find any error, unfortunately, with 100 CPS I can't put it on debug mode but only in info.
Regards, Tiago
Ovidiu Sas <osas@voipembedded.commailto:osas@voipembedded.com> escreveu no dia quinta, 23/12/2021 à(s) 03:15: Check with htop if you don't have any kamailio procs at 100% CPU (due to a deadlock). Do you see any errors in the logs?
-ovidiu
On Wed, Dec 22, 2021 at 11:44 AM pwerspire <pwerspire@gmail.commailto:pwerspire@gmail.com> wrote:
The CPU is around 30% during the test, is always really stable and memory doesn't increase much.
I'm using children=8.
Sergio Charrua <sergio.charrua@voip.ptmailto:sergio.charrua@voip.pt> escreveu no dia quarta, 22/12/2021 à(s) 16:27:
any statistics regarding CPU use? how many threads?
Sérgio Charrua
Email : sergio.charrua@voip.ptmailto:sergio.charrua@voip.pt
This message and any files or documents attached are strictly confidential or otherwise legally protected.
It is intended only for the individual or entity named. If you are not the named addressee or have received this email in error, please inform the sender immediately, delete it from your system and do not copy or disclose it or its contents or use it for any purpose. Please also note that transmission cannot be guaranteed to be secure or error-free.
On Wed, Dec 22, 2021 at 3:57 PM pwerspire <pwerspire@gmail.commailto:pwerspire@gmail.com> wrote:
Hi Sergio,
Thanks for your reply.
This is a google cloud VM with 8 vCPU, I'm using 100 CPS but the number of simultaneous calls is stable at around 1071 at any given time.
Also, I can always see INVITES going inside the server but Kamailio stops answering them, even if you stop sending calls for a long time, and then send a single call, Kamailio will not reply anymore to the Invites.
When Kamailio stops replying to INVITES, If I do for example a "kamcmd dispatcher.list" I have the correct output, but if I do a "kamcmd dlg.list" it will not provide any output and not give back the prompt( before it would just answer that the reply was too big). I will need to use "control + c" to get the prompt of the shell back and after that, all kamcmd commands stop returning any output or giving back the prompt.
If the Kamailio is then restarted, everything starts working correctly again. Also, another note is that this seems only to happen when DMQ is in use and replicating to the fallback Kamailio.
Regards, Tiago
Sergio Charrua <sergio.charrua@voip.ptmailto:sergio.charrua@voip.pt> escreveu no dia terça, 21/12/2021 à(s) 13:38:
What is the call length of each call? How many NICs you have on that server? what networking switches are you using? all these variables have huge impacts on the call flow!
Let's say you make 100CPS and the call length is 10 minutes. At 10 seconds you will have 1.000 ongoing calls using g711 (64kbps). You will have around 64Mbps bandwidth being used. At 1 minute you get 6.000 ongoing calls and will use 390Mbps bandwidth! Near the 10th minute you will be using almost 4Gbps bandwidth and 60.000 ongoing calls!!
Maybe the issue is not within Kamailio and/or the media server, but within your network capacity ...
On my side, on a 4 vCPU and 4GB Ram, Kamailio 5.2 gets me around 400cps with calls up to 30seconds length, and RTPEngine goes OK too. I am sure I could do more, but I don't bother much, this is more than enough! But I have an enormous amount of bandwidth and 3 NICs on the server. NICs are the key . Remember that Kamailio only processes SIP messages. At 5 minutes, using the above call details, you've already sent 30.000 SIP INVITES minimum and many more SIP messages during that time. You need a very good network interface to do that kind of job! Add 30.000 channels / RTP ports to your media server and you get a whole lot of data going on in your network. I bet even the UTP5 cables won't handle the heat =:o)
Also, check the RTP port range your media server was configured with. On Asterisk, usually ports 10.000 to 20.000 are set, which is about 10.000 calls. In the above example, you would stop receiving calls at 2minutes because Asterisk has all RTP ports busy/in use! I don't know about other media servers, but I would bet this is pretty much the same...
Hope this helps!
Sérgio Charrua
Email : sergio.charrua@voip.ptmailto:sergio.charrua@voip.pt
This message and any files or documents attached are strictly confidential or otherwise legally protected.
It is intended only for the individual or entity named. If you are not the named addressee or have received this email in error, please inform the sender immediately, delete it from your system and do not copy or disclose it or its contents or use it for any purpose. Please also note that transmission cannot be guaranteed to be secure or error-free.
On Tue, Dec 21, 2021 at 11:54 AM pwerspire <pwerspire@gmail.commailto:pwerspire@gmail.com> wrote:
Hi,
I have been doing some load testing with Kamailio and having some issues.
I have been trying with 100 CPS and at the beginning, everything is working well but after some time (it can be 10 minutes or for example 40 minutes, is just random but normally happens more in the first 10 minutes) Kamailio stop replying to all SIP messages but still processing HTTP requests, some commands, etc.
If I use "kamcmd dlg.list" no output happens and after that, all kamcmd commands just keep loading with no output.
Kamailio is sharing Dialogs and htables using DMQ with other Kamailio that is the failover, if I shut down the failover one (so no DMQ replication), the test works well with the 100 CPS.
Also tried with modparam("dmq", "worker_usleep", 1000) but the behavior is the same, it will stop processing traffic.
This is some of configuration used:
# ----------------- setting module-specific parameters --------------- modparam("dmq", "server_address", "sip:INTERNAL_INSTANCE_IP:5060") modparam("dmq", "notification_address", "DMQ_NOTIFICATION_ADDRESS")
modparam("dmq", "multi_notify", 1) modparam("dmq", "ping_interval", 10) modparam("dmq", "num_workers",4)
modparam("htable", "enable_dmq", 1) modparam("htable", "dmq_init_sync", 1)
# ----- dialog params ----- modparam("dialog", "dlg_flag", FLD_DLG) modparam("dialog", "dlg_match_mode", 1) modparam("dialog", "db_url", DBURL_RW) modparam("dialog", "db_mode", 0) modparam("dialog", "enable_dmq", 1) modparam("dialog", "db_update_period", 10) modparam("dialog", "h_id_start", H_ID_START) modparam("dialog", "h_id_step", H_ID_STEP)
Memory:
Shared: 4096 Private: 512
kamailio -v version: kamailio 5.5.3 (x86_64/linux) 473cef flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLOCKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: 473cef compiled on 09:34:57 Dec 20 2021 with gcc 10.2.1
In attach is the trap collected after the issue happens. Any more logs or configurations that can help identify or solve the issue?
Thanks for the help, Regards, Tiago __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions
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On Dec 27, 2021, at 11:54 AM, Ben Kaufman bkaufman@bcmone.com wrote:
Additionally, reducing the problem to the simplest configuration in which it can occur is usually an invaluable tool for problem isolation.
+100!
Hello,
are you using dialog profiles by any chances? I have encountered an issue here before: https://github.com/kamailio/kamailio/issues/2923
Cheers,
Henning
-- Henning Westerholt – https://skalatan.de/blog/ Kamailio services – https://gilawa.comhttps://gilawa.com/
From: sr-users sr-users-bounces@lists.kamailio.org On Behalf Of pwerspire Sent: Monday, December 27, 2021 5:45 PM To: Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org Subject: Re: [SR-Users] Kamailio Stop processing SIP traffic
Already checked with sngrep and the INVITES are arriving.
I don't believe that is something related to the server because is not normal that when the issue happens, dialog commands like "kamcmd dlg.list" stop returning any prompt. During the time that the issue is not happening yet, the command just returns that is too big, then when Kamailio stops processing the Sip messages, the command will not work anymore.
Unfortunately, I cannot share the kamailio.cfg file.
Thanks, Tiago
Sergio Charrua <sergio.charrua@voip.ptmailto:sergio.charrua@voip.pt> escreveu no dia segunda, 27/12/2021 à(s) 14:12: ok, let's go 1 step at a time.
stop all firewalls, if any. install sngrep SIP monitoring tool on your server start sngrep and then (re)start your test script until you see Kamailio stoping accepting calls check if sngrep receives SIP Invites
Also, please share your kamailio.cfg . It might help too.
obrigado,
Sérgio Charrua
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www.voip.pthttp://www.voip.pt/ Tel.: +351 callto:+351+91+104+12+66 21 130 71 77
Email : sergio.charrua@voip.ptmailto:sergio.charrua@voip.pt This message and any files or documents attached are strictly confidential or otherwise legally protected. It is intended only for the individual or entity named. If you are not the named addressee or have received this email in error, please inform the sender immediately, delete it from your system and do not copy or disclose it or its contents or use it for any purpose. Please also note that transmission cannot be guaranteed to be secure or error-free.
On Mon, Dec 27, 2021 at 12:23 PM pwerspire <pwerspire@gmail.commailto:pwerspire@gmail.com> wrote: Hi,
I just repeated the test and there is no Kamailio process at 100%, they are low all the time even when the issue starts to happen.
I went through the logs and couldn't find any error, unfortunately, with 100 CPS I can't put it on debug mode but only in info.
Regards, Tiago
Ovidiu Sas <osas@voipembedded.commailto:osas@voipembedded.com> escreveu no dia quinta, 23/12/2021 à(s) 03:15: Check with htop if you don't have any kamailio procs at 100% CPU (due to a deadlock). Do you see any errors in the logs?
-ovidiu
On Wed, Dec 22, 2021 at 11:44 AM pwerspire <pwerspire@gmail.commailto:pwerspire@gmail.com> wrote:
The CPU is around 30% during the test, is always really stable and memory doesn't increase much.
I'm using children=8.
Sergio Charrua <sergio.charrua@voip.ptmailto:sergio.charrua@voip.pt> escreveu no dia quarta, 22/12/2021 à(s) 16:27:
any statistics regarding CPU use? how many threads?
Sérgio Charrua
www.voip.pthttp://www.voip.pt Tel.: +351 21 130 71 77
Email : sergio.charrua@voip.ptmailto:sergio.charrua@voip.pt
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On Wed, Dec 22, 2021 at 3:57 PM pwerspire <pwerspire@gmail.commailto:pwerspire@gmail.com> wrote:
Hi Sergio,
Thanks for your reply.
This is a google cloud VM with 8 vCPU, I'm using 100 CPS but the number of simultaneous calls is stable at around 1071 at any given time.
Also, I can always see INVITES going inside the server but Kamailio stops answering them, even if you stop sending calls for a long time, and then send a single call, Kamailio will not reply anymore to the Invites.
When Kamailio stops replying to INVITES, If I do for example a "kamcmd dispatcher.list" I have the correct output, but if I do a "kamcmd dlg.list" it will not provide any output and not give back the prompt( before it would just answer that the reply was too big). I will need to use "control + c" to get the prompt of the shell back and after that, all kamcmd commands stop returning any output or giving back the prompt.
If the Kamailio is then restarted, everything starts working correctly again. Also, another note is that this seems only to happen when DMQ is in use and replicating to the fallback Kamailio.
Regards, Tiago
Sergio Charrua <sergio.charrua@voip.ptmailto:sergio.charrua@voip.pt> escreveu no dia terça, 21/12/2021 à(s) 13:38:
What is the call length of each call? How many NICs you have on that server? what networking switches are you using? all these variables have huge impacts on the call flow!
Let's say you make 100CPS and the call length is 10 minutes. At 10 seconds you will have 1.000 ongoing calls using g711 (64kbps). You will have around 64Mbps bandwidth being used. At 1 minute you get 6.000 ongoing calls and will use 390Mbps bandwidth! Near the 10th minute you will be using almost 4Gbps bandwidth and 60.000 ongoing calls!!
Maybe the issue is not within Kamailio and/or the media server, but within your network capacity ...
On my side, on a 4 vCPU and 4GB Ram, Kamailio 5.2 gets me around 400cps with calls up to 30seconds length, and RTPEngine goes OK too. I am sure I could do more, but I don't bother much, this is more than enough! But I have an enormous amount of bandwidth and 3 NICs on the server. NICs are the key . Remember that Kamailio only processes SIP messages. At 5 minutes, using the above call details, you've already sent 30.000 SIP INVITES minimum and many more SIP messages during that time. You need a very good network interface to do that kind of job! Add 30.000 channels / RTP ports to your media server and you get a whole lot of data going on in your network. I bet even the UTP5 cables won't handle the heat =:o)
Also, check the RTP port range your media server was configured with. On Asterisk, usually ports 10.000 to 20.000 are set, which is about 10.000 calls. In the above example, you would stop receiving calls at 2minutes because Asterisk has all RTP ports busy/in use! I don't know about other media servers, but I would bet this is pretty much the same...
Hope this helps!
Sérgio Charrua
www.voip.pthttp://www.voip.pt Tel.: +351 21 130 71 77
Email : sergio.charrua@voip.ptmailto:sergio.charrua@voip.pt
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On Tue, Dec 21, 2021 at 11:54 AM pwerspire <pwerspire@gmail.commailto:pwerspire@gmail.com> wrote:
Hi,
I have been doing some load testing with Kamailio and having some issues.
I have been trying with 100 CPS and at the beginning, everything is working well but after some time (it can be 10 minutes or for example 40 minutes, is just random but normally happens more in the first 10 minutes) Kamailio stop replying to all SIP messages but still processing HTTP requests, some commands, etc.
If I use "kamcmd dlg.list" no output happens and after that, all kamcmd commands just keep loading with no output.
Kamailio is sharing Dialogs and htables using DMQ with other Kamailio that is the failover, if I shut down the failover one (so no DMQ replication), the test works well with the 100 CPS.
Also tried with modparam("dmq", "worker_usleep", 1000) but the behavior is the same, it will stop processing traffic.
This is some of configuration used:
# ----------------- setting module-specific parameters --------------- modparam("dmq", "server_address", "sip:INTERNAL_INSTANCE_IP:5060") modparam("dmq", "notification_address", "DMQ_NOTIFICATION_ADDRESS")
modparam("dmq", "multi_notify", 1) modparam("dmq", "ping_interval", 10) modparam("dmq", "num_workers",4)
modparam("htable", "enable_dmq", 1) modparam("htable", "dmq_init_sync", 1)
# ----- dialog params ----- modparam("dialog", "dlg_flag", FLD_DLG) modparam("dialog", "dlg_match_mode", 1) modparam("dialog", "db_url", DBURL_RW) modparam("dialog", "db_mode", 0) modparam("dialog", "enable_dmq", 1) modparam("dialog", "db_update_period", 10) modparam("dialog", "h_id_start", H_ID_START) modparam("dialog", "h_id_step", H_ID_STEP)
Memory:
Shared: 4096 Private: 512
kamailio -v version: kamailio 5.5.3 (x86_64/linux) 473cef flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLOCKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: 473cef compiled on 09:34:57 Dec 20 2021 with gcc 10.2.1
In attach is the trap collected after the issue happens. Any more logs or configurations that can help identify or solve the issue?
Thanks for the help, Regards, Tiago __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions
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