sr-users July 2010

sr-users@lists.kamailio.org

64 participants
88 discussions

Re: [SR-Users] PDT ran out of pkg memory using pdt_list [SOLVED}
by JR Richardson 21 Jul '10

21 Jul '10

>> try to play with mysql module timeout parameter in case the records are not >> loaded fast enough: >> >> http://kamailio.org/docs/modules/stable/modules/db_mysql.html#id2928400 >> >> Regards, >> Ramona > > Ok, I figured out that sr was taking about 9-10 seconds to load 300K > records so I increased: > # ----- db_mysql params ----- > modparam("db_mysql", "timeout_interval", 20) > > And found that the table would load, so I started increasing the > record count by 60K, then the fault condition occurred again at around > 400K records, then went away by itself. I got all the way to 760K > records without a problem then hit another wall at 800K records. > > I think there is something flaky going on, I can not reproduce it > reliable, sometimes the table loads just fine and other times it does > not load at all. > > I started monitoring mysqld. When I restart sr or issue pdt_reload > and msqld has a load, the table seems to load fine, regardless of the > table size or "timeout_interval" setting. When the problem is > occurring, myslqd has zero usage. When the issue was occurring, I > restarted the mysql process and the table loaded into sr. I'm now > suspecting I have a buggy mysqld so I'm going to try to update that > and see if I can reproduce the problem. So for now I can't isolate > the issue, but I'm still working on it. > > I do see a difference with the "timeout_interval" during sr restarts, > the longer the time the better it does. Also there is a time > difference when loading the table, sometimes it takes 30 seconds, > sometimes 90 seconds. I think maybe there is a combination of issues > going on here. I need to rebuild a fresh install and test a bit more > methodically to find a root cause. Also I want to grab a newer > version of mysql-server. > > I'll update with my findings. # ----- db_mysql params ----- modparam("db_mysql", "timeout_interval", 20) Time interval (in seconds) after that an connection attempt, read or write request is aborted. The value counts three times, as several retries are done from the driver before it gives up. "The values counts 3 times" this was my issue, as I was adjusting the value between 10, 20, 30, 60, 120, and having inconsistent table load times from mysqld. After a reboot, mysql started performing better, more consistent with load times. My table with 800K records was taking between 30-38 seconds to load. With timeout_interval set to 10 (30 second timeout), I was right on the edge of the table loading or not loading, sometimes it would and other times it would not. So giving a bit of cushion on the timeout_interval seems to resolve the problem. Adjusting this value I could consistently reproduce the problem. So for large database tables, this timeout value should be set to about 1 second per 20K records. As far as the other issue goes with using pdt_list and pkg memory size, compileing mi using system mem solved this issue as well. Also pdt_list has the option to search for prefixes which works in my case without the need to increase pkg memory or system memory: sip-router2:~# kamctl fifo pdt_list . 99999 PDT:: SDOMAIN=* PREFIX=999990 DOMAIN=2 PDT:: SDOMAIN=* PREFIX=999991 DOMAIN=2 PDT:: SDOMAIN=* PREFIX=999992 DOMAIN=2 PDT:: SDOMAIN=* PREFIX=999993 DOMAIN=2 PDT:: SDOMAIN=* PREFIX=999994 DOMAIN=2 PDT:: SDOMAIN=* PREFIX=999995 DOMAIN=2 PDT:: SDOMAIN=* PREFIX=999996 DOMAIN=2 PDT:: SDOMAIN=* PREFIX=999997 DOMAIN=2 PDT:: SDOMAIN=* PREFIX=999998 DOMAIN=2 PDT:: SDOMAIN=* PREFIX=999999 DOMAIN=2 Using the list prefix search option will pipe out about 10,000 records, but errors out with "no more pkg mem" past that. Thanks for all your input on this thread to help me isolate the issue. JR -- JR Richardson Engineering for the Masses

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freezing for major release 3.1
by Daniel-Constantin Mierla 21 Jul '10

21 Jul '10

Hello, as discussed during our devel meeting, next major release 3.1 is scheduled for this autumn. Therefore the freezing should happen soon. Would be 2 weeks from now enough for everyone to push planned new features to repo? Cheers, Daniel -- Daniel-Constantin Mierla http://www.asipto.com/

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Dialplan module examples
by Raúl Alexis Betancor Santana 20 Jul '10

20 Jul '10

Anyone known about examples for the dialplan table ? Best regards -- Raúl Alexis Betancor Santana Dimensión Virtual

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kamailio server load balancing
by RAJNIKANT VANZA 20 Jul '10

20 Jul '10

Hi Guys, I have 2 kamailio servers. I need to load balancing for this 2 kamailio servers. Scenario: ------------ Each kamailio server call limit is 5000 approx. kamailio server 1 kamailio server 2 If kamailio server 1 reach call limit (5000) then call go on kamailio server 2. What is the best way for achieve this? Thanks in advance. -- Best Regards, Rajnikant Vanza

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our kamailio server very slow , and there is no signal in the line
by hala alramli 17 Jul '10

17 Jul '10

Hello, some time ,there is no signal in phone line for a while ,also the server become very slow then it fix him self ,i don't know how . ,could any body give me possible reasons ,and how i can fix that, i checked syslog file every thing normal as i can see ,please help me. regards, hala

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Simple Least Cost Routing NPA-NXX?
by JR Richardson 16 Jul '10

16 Jul '10

Hi All, I'm in the lab with sip router 3.0 mocking up some trunk-group prefix routing with PDT and load balancing with Dispatcher. This is working great and as expected. I would like to incorporate some sort of LCR matching on NPA-NXX but I'm having some difficulty. The PDT module automatically strips the prefix so for trunk group routing it works great but really can't be used for matching NPA-NXX. The Carrierroute module is pretty nice and works as expected but the issue I'm having, it appears that I have to have a NPA-NXX entry for each domain gateway I want to send calls to. For instance if I have 3 gateways in domain 1, then I would need the same NPA-NXX record entry in the database for each gateway. The database entries would be [NPA-NXX] x [Number of Gateways] per domain. So having 100K routes would mean having 300K records. Am I looking at this correctly? This is really what it seems like to me but logically I would think this should not be the case? I really like the Dispatcher polling functions to actively know what gateways are on-line and off-line plus the different distribution algorithms to choose from. So it makes sense to me to implement a pseudo PDT/Distpacher scenario as an LCR but with PDT stripping the prefix, that can not be done. Is there another mechanism whereby I can dip the database looking for the NPA-NXX, extract the domain group and send that to the Dispatcher function, without stripping the prefix? Or can a PDT module parameter be added to not strip the prefix. But I'm not sure this will work, can the PDT module hold in memory a few hundred thousand records? Thanks. JR -- JR Richardson Engineering for the Masses

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Load Balancing REDIRECT
by Maw Zin Tun - Real Telekom 16 Jul '10

16 Jul '10

Hi, I started using Kamailio 3.0 as redirect server about 2 months ago, basically I'm quite new to it. Now I need to change current setup to redundant active-active system but I'm struggling where to find documentation that can lead me to achiving it. Can anyone pls advise me where to start looking ? Many thanks, Maw Tun

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No error line printed ?
by Raúl Alexis Betancor Santana 15 Jul '10

15 Jul '10

Hi, I'm trying to test the new 3.0.2 release ... but with no luck ... sbc02:/etc/kamailio# kamailio -ddddddddd -u kamailio -g kamailio -c -E 0(1036) DEBUG: <core> [main.c:1800]: read 343643572 from /dev/urandom 0(1036) DEBUG: <core> [main.c:1806]: seeding PRNG with 1622837431 0(1036) DEBUG: <core> [main.c:1810]: test random numbers 396346077 2140170049 1800197589 0(1036) : <core> [cfg.lex:1390]: included file name must be between quotes If i'm not wrong ... I should get the line/caracter at witch the parser get the error ... but that's not true ... I'm missing something really stupid ? Best regards -- Raúl Alexis Betancor Santana Dimensión Virtual

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Dispatcher: ds_select_domain(set, alg) with a pseudo variable.
by Geoffrey Mina 15 Jul '10

15 Jul '10

How difficult would it be to make ds_select_domain(set, alg) accept a pseudo variable for the "set" argument? I would like to map the $rU to a specific dispatcher set via a database table. I suppose i could just hard code three or four sets with a conditional if() statement, but I would prefer to make it a little more dyanimc. Correct me if I am wrong in my assumption that ds_select_domain() doesn't accept pseudo variables. Thanks.

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CRITICAL:tm:set_timer: set_timer for 1 list called on a "detached" timer -- ignoring: 0x7f1106077a60
by Iñaki Baz Castillo 15 Jul '10

15 Jul '10

Hi, what does it mean this error message?: CRITICAL:tm:set_timer: set_timer for 1 list called on a "detached" timer -- ignoring: 0x7f1106077a60 Thanks a lot. -- Iñaki Baz Castillo <ibc(a)aliax.net>

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sr-users July 2010