[Kamailio-Users] lcr-module, ping and load_gws_from_grp (kamailio 1.5)

[Juha Heinanen]

Stefan Prelle writes:

 > I just noticed something weird when working with the lcr module.
 > My setup has 5 gateways - 4 in group 1, one in group 2. The lcr-table
 > has an entry for each group, both reacting on the same prefix.
 > I am using 
 >   load_gws_from_grp("1")
 > to get a gateway for a target. This usually works fine.
 > 
 > If now all 4 gateways in group 1 ar disabled because the alive check
 > failed, load_gws_from_grp("1") returns the gateway from group 2 (or
 > other groups where the prefix from the lcr-table matches.
 > 
 > I would consider this a bug, since I explicitly requested gateways from
 > a specific group.

stefan,

i was not able to reproduce this.  i have

# kamctl fifo lcr_gw_dump
GW::  GRP_ID=8 IP_ADD=192.98.101.11 HOSTNAME= PORT=5060 SCHEME=sip TRANSPORT=udp STRIP=0 TAG= WEIGHT=1 FLAGS=35 PING=0
GW::  GRP_ID=8 IP_ADD=192.98.101.12 HOSTNAME= PORT=5060 SCHEME=sip TRANSPORT=udp STRIP=0 TAG= WEIGHT=1 FLAGS=35 PING=0
GW::  GRP_ID=8 IP_ADD=192.98.101.13 HOSTNAME= PORT=5060 SCHEME=sip TRANSPORT=udp STRIP=0 TAG= WEIGHT=1 FLAGS=35 PING=0
GW::  GRP_ID=8 IP_ADD=192.98.101.14 HOSTNAME= PORT=5060 SCHEME=sip TRANSPORT=udp STRIP=0 TAG= WEIGHT=1 FLAGS=35 PING=0
GW::  GRP_ID=9 IP_ADD=192.98.101.21 HOSTNAME= PORT=5060 SCHEME=sip TRANSPORT=udp STRIP=0 TAG= WEIGHT=1 FLAGS=35 PING=0

# kamctl fifo lcr_lcr_dump
RULE::  PREFIX=0 FROM_URI= GRP_ID=9 PRIORITY=1
RULE::  PREFIX=0 FROM_URI= GRP_ID=8 PRIORITY=1
PREFIX_LENS::  PREFIX_LEN=1

then in load_gws_from_grp i changed the DBG to ERR:

		LM_ERR("added matched_gws[%d]=[%u, %u, %u, %u]\n",
			gw_index, next_index, 0, 1, 
			matched_gws[gw_index].weight);

when i call load_gws_from_grp("8") i get:

Mar 10 04:56:09 taimen /usr/sbin/kamailio[12199]: ERROR:lcr:load_gws_from_grp: added matched_gws[0]=[1, 0, 1, 1364086043]
Mar 10 04:56:09 taimen /usr/sbin/kamailio[12199]: ERROR:lcr:load_gws_from_grp: added matched_gws[1]=[4, 0, 1, 85553043]
Mar 10 04:56:09 taimen /usr/sbin/kamailio[12199]: ERROR:lcr:load_gws_from_grp: added matched_gws[2]=[3, 0, 1, 1947781210]
Mar 10 04:56:09 taimen /usr/sbin/kamailio[12199]: ERROR:lcr:load_gws_from_grp: added matched_gws[3]=[2, 0, 1, 1232419718]

i.e., that is the four gws from grp_id=8.

try a similar debug with your setup.

-- juha