19 Oct
2015
19 Oct
'15
12:07 p.m.
Hi Daniel,
Many thanks for taking the time to reply.
I have updated to 4.3.1, and am still having the same issue. However, I
have found a work around to the issue (or at least another way of doing
what i needed to do).
I plan to have a cluster of 5 or more media servers (only have 2 at the
moment, as I am still working through the kamailio/asterisk config) and
wanted to be able to force traffic through 1 media server for the sakes
of tracing and troubleshooting. The weighting method appeared to allow
me to do this. However, after reading through the dispatcher module
readme, I found the flags options will allow me to disable targets by
adjusting the flags within the database.
For reasons I don't fully understand, when set to 50/50, 60/40 etc. the
balancing appears to work fine. Its only when you set it the targets to
100/0 things start to go awry, but the only reason to do this was to
send all traffic to one destination. As setting the flag to 4 against
the target disables routing to it, I can leave the weighting alone, and
just adjust the flag values as and when needed.
Kind Regards,
---------
Ben Bliss
On 16/10/2015 3:26 PM, Daniel-Constantin Mierla wrote:
Hello,
can try with latest version in 4.2 series? There was a fix to weight
based balancing quite some time ago, but it might be after 4.2.4 was
released.
Cheers,
Daniel
On 15/10/15 18:11, Ben Bliss wrote:
> Hi,
>
> I am having issues getting the dispatcher to work using weighting. I
> have been digging through old posts to the list, and tried all that I
> have found, but am still having no luck at all.
>
> So, information...
>
> version: kamailio 4.2.4 (amd64/freebsd) be62bd
> flags: STATS: Off, USE_TCP, USE_TLS, TLS_HOOKS, USE_RAW_SOCKS,
> DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC,
> F_MALLOC, DBG_F_MALLOC, USE_PTHREAD_MUTEX, USE_DNS_CACHE,
> USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES
> MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024,
> BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
> poll method support: poll, select, kqueue.
> id: be62bd
>
> Dispatcher configuration...
>
> modparam("dispatcher", "db_url", DBURL)
> modparam("dispatcher", "table_name", "dispatcher")
> modparam("dispatcher", "flags", 3)
> modparam("dispatcher", "force_dst", 1)
> modparam("dispatcher", "dst_avp", "$avp(AVP_DST)")
> modparam("dispatcher", "grp_avp", "$avp(AVP_GRP)")
> modparam("dispatcher", "cnt_avp", "$avp(AVP_CNT)")
>
> Dialplan config..
>
> route[DISPATCH] {
> if(!ds_select_dst("1", "9"))
> {
> send_reply("404", "No destination");
> exit;
> }
> xlog("L_DBG", "--- SCRIPT: going to <$ru> via
<$du>\n");
> t_on_failure("RTF_DISPATCH");
> return;
>
> I am loading the values from a database, which are being loaded fine,
> and appear to be being formatted correctly aswell..
>
>
+----+-------+-------------------------+-------+----------+------------+----------------------+
>
> | id | setid | destination | flags | priority | attrs
> | description |
>
+----+-------+-------------------------+-------+----------+------------+----------------------+
>
> | 1 | 1 | sipx.x.x.106:5060 | 8 | 1 | weight=100 |
> |
> | 2 | 1 | sip:x.x.x.107:5060 | 8 | 1 | weight=0 |
> |
>
+----+-------+-------------------------+-------+----------+------------+----------------------+
>
>
> The IP's are public, so i've masked them... The following is from
> kamcmd..
>
> {
> NRSETS: 1
> RECORDS: {
> SET: {
> ID: 1
> TARGETS: {
> DEST: {
> URI: sip:x.x.x.107:5060
> FLAGS: AP
> PRIORITY: 1
> ATTRS: {
> BODY: weight=0
> DUID:
> MAXLOAD: 0
> WEIGHT: 0
> }
> }
> DEST: {
> URI: sip:x.x.x106:5060
> FLAGS: AP
> PRIORITY: 1
> ATTRS: {
> BODY: weight=100
> DUID:
> MAXLOAD: 0
> WEIGHT: 100
> }
> }
> }
> }
> }
> }
>
> However, when any call is placed, it will always goto the server
> ending 107 (with weight 0, which means, as far as I understand, it
> should be ignored). I've tried with ; after the weights, this made no
> change either.
>
> When set to round robin, or via priority, it appears to work fine.
>
> Any ideas?
>