9 Mar
2009
9 Mar
'09
12:36 p.m.
Hi,
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.
Regards,
Stefan
10 Mar
10 Mar
4:02 a.m.
New subject: [Kamailio-Users] lcr-module, ping and load_gws_from_grp (kamailio 1.5)
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
9:05 a.m.
New subject: [Kamailio-Users] lcr-module, ping and load_gws_from_grp (kamailio 1.5)
*cough* *clear throat* *look abashed*
Am Dienstag, den 10.03.2009, 05:02 +0200 schrieb Juha Heinanen:
try a similar debug with your setup.
Found the problem: It exists between chair and computer.
Just modified the source like you requested to produce the output and
wondered why it did not show up. Then found out that the program flow in
the config file was not as I expected, so that I did call load_gws
instead of load_gws_from_grp - which perfectly explains what I noticed.
I don't know why I did not see that yesterday. Sorry for the
misinformation.
Cheers,
Stefan
9:10 a.m.
New subject: [Kamailio-Users] lcr-module, ping and load_gws_from_grp (kamailio 1.5)
Stefan Prelle writes:
I don't know why I did not see that yesterday.
Sorry for the
misinformation.
no problem, while testing, i noticed that load_gws_from_grp does not
exclude dead gws. i people don't object i would like to fix it as a
bug in 1.5.
-- juha
9:22 a.m.
New subject: [Kamailio-Users] lcr-module, ping and load_gws_from_grp (kamailio 1.5)
Am Dienstag, den 10.03.2009, 10:10 +0200 schrieb Juha Heinanen:
Stefan Prelle writes:
Oh, please. My whole idea is based upon that functionality. :)
Stefan
I don't know why I did not see that
yesterday. Sorry for the
misinformation.
no problem, while testing, i noticed that load_gws_from_grp does not
exclude dead gws. i people don't object i would like to fix it as a
bug in 1.5.
4:09 a.m.
New subject: [Kamailio-Users] lcr-module, ping and load_gws_from_grp (kamailio 1.5)
stefan,
i would like to add, that load_gws_from_grp does not care about the prefix
nor if a gw in the group is currently declared dead.
the latter could be considered a bug, i.e., it should skip dead gws.
liveness test feature was not added by me and i overlooked this when i
applied the patch.
-- juha
8:51 a.m.
New subject: [Kamailio-Users] lcr-module, ping and load_gws_from_grp (kamailio 1.5)
Hi Juha,
Am Dienstag, den 10.03.2009, 05:09 +0200 schrieb Juha Heinanen:
stefan,
i would like to add, that load_gws_from_grp does not care about the prefix
nor if a gw in the group is currently declared dead.
the latter could be considered a bug, i.e., it should skip dead gws.
liveness test feature was not added by me and i overlooked this when i
applied the patch.
I tried this on our live system and noticed a shift in the traffic
distribution. From what I figured this is not related to liveness tests.
load_gws_from_grp definetly returned gateways from another group.
Formerly I used the openser-1.3.2, now I upgraded to kamailio-1.5.0.
The entries in the database (of course the tables have been upgraded) of
lcr and gw are still the same, so I guess something must have changed.
I see if I can strip that down to an easier example that reproduces the
effect.
Regards,
Stefan
11 Mar
11 Mar
6:06 p.m.
New subject: [Kamailio-Users] lcr-module, ping and load_gws_from_grp (kamailio 1.5)
On Tuesday 10 March 2009, Stefan Prelle wrote:
Hi Stefan!
Can you perhaps add some details what exactly has changed? E.g. is it not
equally distributed anymore and one GW get more traffic than the others? Or
does it ignore some gateways completely?
Cheers,
Henning
i would like
to add, that load_gws_from_grp does not care about the
prefix nor if a gw in the group is currently declared dead.
the latter could be considered a bug, i.e., it should skip dead gws.
liveness test feature was not added by me and i overlooked this when i
applied the patch.
I tried this on our live system and noticed a shift in the traffic
distribution. From what I figured this is not related to liveness tests.
load_gws_from_grp definetly returned gateways from another group.
Formerly I used the openser-1.3.2, now I upgraded to kamailio-1.5.0.
The entries in the database (of course the tables have been upgraded) of
lcr and gw are still the same, so I guess something must have changed.
I see if I can strip that down to an easier example that reproduces the
effect.
12 Mar
12 Mar
9:32 a.m.
New subject: [Kamailio-Users] lcr-module, ping and load_gws_from_grp (kamailio 1.5)
Hi Henning,
Am Mittwoch, den 11.03.2009, 18:06 +0100 schrieb Henning Westerholt:
Can you perhaps add some details what exactly has
changed? E.g. is it
not
equally distributed anymore and one GW get more traffic than the
others? Or
does it ignore some gateways completely?
As I already wrote: The problem existed between chair and monitor.
I did not notice that between openser-1.3.2 and kamailio-1.5 the
load_gws(<grp>) was renamed to load_gws_from_grp(<grp>"), while the
original syntax was still valid but with a different meaning.
So I got other gateways than I requested, but that was not related to
the liveness checks.
Regards,
Stefan
7:07 p.m.
New subject: [Kamailio-Users] lcr-module, ping and load_gws_from_grp (kamailio 1.5)
On Thursday 12 March 2009, Stefan Prelle wrote:
As I already wrote: The problem existed between chair
and monitor.
Hi Stefan,
ok, then i've had also a similar problem reading this thread.. ;-)
Cheers,
Henning
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9 comments
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participants (3)
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Henning Westerholt -
jh＠tutpro.com -
Stefan Prelle