[Kamailio-Users] [OpenSIPS-Users] WARNING:core:send2child: no free tcp receiver

Mon Jan 12 14:39:48 CET 2009

Probably the proxy tries to open new tcp connections. This will fail 
after some timeout. During waiting for the timeout the TCP processes are 
busy, thus they can not handle new requests (as the warning says)

klaus

Ali Jawad schrieb:
> Adding to the below
>  
>  
> I am getting these errors
>  
> Jan 12 12:35:30 sero /usr/local/sbin/openser[30076]: 
> ERROR:core:tcpconn_connect: tcp_blocking_connect failed
> Jan 12 12:35:30 sero /usr/local/sbin/openser[30076]: 
> ERROR:core:tcp_send: connect failed
> Jan 12 12:35:30 sero /usr/local/sbin/openser[30076]: ERROR:sl:msg_send: 
> tcp_send failed
> Jan 12 12:35:30 sero /usr/local/sbin/openser[30076]: 
> ERROR:auth:challenge: failed to send the response
> Jan 12 12:35:31 sero /usr/local/sbin/openser[30076]: 
> ERROR:core:tcp_blocking_connect: poll error: flags 18
> Jan 12 12:35:31 sero /usr/local/sbin/openser[30076]: 
> ERROR:core:tcp_blocking_connect: failed to retrieve SO_ERROR (111) 
> Connection refused
>  
> 
> With Regards
> 
>  
> 
> Ali Jawad
> 
> System Administrator
> 
> Splendor Telecom (www.splendor.net <outbind://210/www.splendor.net>)
> 
> Beirut, Lebanon
> 
> Phone: +961 1 373725
> 
> Fax: + 961 1 375554
> 
>  
> 
>  
> 
> ------------------------------------------------------------------------
> *From:* Ali Jawad
> *Sent:* 2009-01-12 12:33
> *To:* Ali Jawad; users at lists.opensips.org
> *Cc:* users at lists.kamailio.org
> *Subject:* RE: [OpenSIPS-Users] WARNING:core:send2child: no free tcp 
> receiver
> 
> As an update I have retrieved this
>  
> 
> [root at sero ~]# /usr/local/sbin/openserctl ps
> 
> Process:: ID=0 PID=30033 Type=attendant
> 
> Process:: ID=1 PID=30036 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=2 PID=30037 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=3 PID=30038 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=4 PID=30039 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=5 PID=30041 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=6 PID=30042 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=7 PID=30043 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=8 PID=30044 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=9 PID=30045 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=10 PID=30046 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=11 PID=30047 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=12 PID=30048 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=13 PID=30049 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=14 PID=30050 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=15 PID=30051 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=16 PID=30052 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=17 PID=30053 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=18 PID=30054 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=19 PID=30055 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=20 PID=30056 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=21 PID=30057 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=22 PID=30060 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=23 PID=30062 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=24 PID=30064 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=25 PID=30065 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=26 PID=30066 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=27 PID=30067 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=28 PID=30068 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=29 PID=30069 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=30 PID=30070 Type=SIP receiver udp:xx.yy.zz.aa:5060
> 
> Process:: ID=31 PID=30071 Type=timer
> 
> Process:: ID=32 PID=30072 Type=timer
> 
> Process:: ID=33 PID=30073 Type=MI FIFO
> 
> Process:: ID=34 PID=30074 Type=TCP receiver
> 
> Process:: ID=35 PID=30075 Type=TCP receiver
> 
> Process:: ID=36 PID=30076 Type=TCP receiver
> 
> Process:: ID=37 PID=30077 Type=TCP receiver
> 
> Process:: ID=38 PID=30079 Type=TCP receiver
> 
> Process:: ID=39 PID=30080 Type=TCP receiver
> 
> Process:: ID=40 PID=30081 Type=TCP receiver
> 
> Process:: ID=41 PID=30082 Type=TCP receiver
> 
> Process:: ID=42 PID=30084 Type=TCP receiver
> 
> Process:: ID=43 PID=30085 Type=TCP receiver
> 
> Process:: ID=44 PID=30086 Type=TCP receiver
> 
> Process:: ID=45 PID=30087 Type=TCP receiver
> 
> Process:: ID=46 PID=30090 Type=TCP receiver
> 
> Process:: ID=47 PID=30091 Type=TCP receiver
> 
> Process:: ID=48 PID=30092 Type=TCP receiver
> 
> Process:: ID=49 PID=30094 Type=TCP receiver
> 
> Process:: ID=50 PID=30095 Type=TCP receiver
> 
> Process:: ID=51 PID=30096 Type=TCP receiver
> 
> Process:: ID=52 PID=30097 Type=TCP receiver
> 
> Process:: ID=53 PID=30098 Type=TCP receiver
> 
> Process:: ID=54 PID=30099 Type=TCP receiver
> 
> Process:: ID=55 PID=30100 Type=TCP receiver
> 
> Process:: ID=56 PID=30101 Type=TCP receiver
> 
> Process:: ID=57 PID=30102 Type=TCP receiver
> 
> Process:: ID=58 PID=30103 Type=TCP receiver
> 
> Process:: ID=59 PID=30104 Type=TCP receiver
> 
> Process:: ID=60 PID=30105 Type=TCP receiver
> 
> Process:: ID=61 PID=30107 Type=TCP receiver
> 
> Process:: ID=62 PID=30109 Type=TCP receiver
> 
> Process:: ID=63 PID=30110 Type=TCP receiver
> 
> Process:: ID=64 PID=30111 Type=TCP main
> 
> With Regards
> 
>  
> 
> Ali Jawad
> 
> System Administrator
> 
> Splendor Telecom (www.splendor.net <outbind://206/www.splendor.net>)
> 
> Beirut, Lebanon
> 
> Phone: +961 1 373725
> 
> Fax: + 961 1 375554
> 
>  
> 
>  
> 
> ------------------------------------------------------------------------
> *From:* users-bounces at lists.opensips.org 
> [mailto:users-bounces at lists.opensips.org] *On Behalf Of *Ali Jawad
> *Sent:* 2009-01-12 02:31
> *To:* users at lists.opensips.org
> *Cc:* users at lists.kamailio.org
> *Subject:* [OpenSIPS-Users] WARNING:core:send2child: no free tcp receiver
> 
> Hi All
> I am getting a lot of WARNING:core:send2child: no free tcp receiver, 
> connection passed to the leastbusy one (7)
> I tried setting children to 20 that did not help, these warning start 
> being displayed right after I start openser. Users frequently get 
> service unavailable errors randomly when they try to connect, but I dont 
> know if this is related to this warning message or not.
>  
> As for the server there is plenty of CPU and RAM left, users range from 
> 140 to 250 online all using tls. As for server limits
>  
> I have set them to the following :
>  
> You have new mail in /var/spool/mail/root
> [root at sero openser]# ulimit -a
> core file size          (blocks, -c) 0
> data seg size           (kbytes, -d) unlimited
> file size               (blocks, -f) unlimited
> pending signals                 (-i) 1024
> max locked memory       (kbytes, -l) 32
> max memory size         (kbytes, -m) unlimited
> open files                      (-n) 101024
> pipe size            (512 bytes, -p) 8
> POSIX message queues     (bytes, -q) 819200
> stack size              (kbytes, -s) 10240
> cpu time               (seconds, -t) unlimited
> max user processes              (-u) 16382
> virtual memory          (kbytes, -v) unlimited
> file locks                      (-x) unlimited
> Is this warning message related to the serice unavailable problem, what 
> does the warning message mean in more depth and how to get rid of it ?
>  
> Thanks
>  
>  
>  
> Getting alot of
>  
> Jan 12 00:00:32 sero /usr/local/sbin/openser[28281]: 
> WARNING:core:send2child: no free tcp receiver, connection passed to the 
> leastbusy one (7)
> Jan 12 00:00:32 sero /usr/local/sbin/openser[28281]: 
> WARNING:core:send2child: no free tcp receiver, connection passed to the 
> leastbusy one (7)
> Jan 12 00:00:32 sero /usr/local/sbin/openser[28281]: 
> WARNING:core:send2child: no free tcp receiver, connection passed to the 
> leastbusy one (7)
> Jan 12 00:00:33 sero /usr/local/sbin/openser[28281]: 
> WARNING:core:send2child: no free tcp receiver, connection passed to the 
> leastbusy one (8)
> Jan 12 00:00:33 sero /usr/local/sbin/openser[28281]: 
> WARNING:core:send2child: no free tcp receiver, connection passed to the 
> leastbusy one (8)
> Jan 12 00:00:33 sero /usr/local/sbin/openser[28281]: 
> WARNING:core:send2child: no free tcp receiver, connection passed to the 
> leastbusy one (8)
> Jan 12 00:00:33 sero /usr/local/sbin/openser[28281]: 
> WARNING:core:send2child: no free tcp receiver, connection passed to the 
> leastbusy one (8)
> Jan 12 00:00:33 sero /usr/local/sbin/openser[28281]: 
> WARNING:core:send2child: no free tcp receiver, connection passed to the 
> leastbusy one (9)
> Jan 12 00:00:33 sero /usr/local/sbin/openser[28281]: 
> WARNING:core:send2child: no free tcp receiver, connection passed to the 
> leastbusy one (9)
> Jan 12 00:00:33 sero /usr/local/sbin/openser[28281]: 
> WARNING:core:send2child: no free tcp receiver, connection passed to the 
> leastbusy one (9)
> Jan 12 00:00:34 sero /usr/local/sbin/openser[28281]: 
> WARNING:core:send2child: no free tcp receiver, connection passed to the 
> leastbusy one (9)
> Jan 12 00:00:34 sero /usr/local/sbin/openser[28281]: 
> WARNING:core:send2child: no free tcp receiver, connection passed to the 
> leastbusy one (10)
>  
> Jan 12 00:00:34 sero /usr/local/sbin/openser[28281]: 
> WARNING:core:send2child: no free tcp receiver, connection passed to the 
> leastbusy one (10)
>  
> Jan 12 00:00:34 sero /usr/local/sbin/openser[28281]: 
> WARNING:core:send2child: no free tcp receiver, connection passed to the 
> leastbusy one (10)
>  
> Jan 12 00:00:35 sero /usr/local/sbin/openser[28281]: 
> WARNING:core:send2child: no free tcp receiver, connection passed to the 
> leastbusy one (10)
>  
> Jan 12 00:00:35 sero /usr/local/sbin/openser[28281]: 
> WARNING:core:send2child: no free tcp receiver, connection passed to the 
> leastbusy one (10)
>  
> Jan 12 00:00:35 sero /usr/local/sbin/openser[28281]: 
> WARNING:core:send2child: no free tcp receiver, connection passed to the 
> leastbusy one (10)
>  
>  
> 
> 
> ------------------------------------------------------------------------
> 
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