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37456 discussions

Registrar ignoring socket
by Spencer Thomason 30 Jan '12

30 Jan '12

Hello, I'm working on building a HA setup with separate registrar and proxy servers. The registrar server writes to a master database that is replicated to a local database on each of the proxy servers. A load balancer then sits in front of the proxys. When routing to a registered user on the proxys I receive an error message that the socket is unknown and ignored (obviously because its on another machine). Is this just a warning message or are there any consequences to doing it this way? Is my topology flawed and would there be a better way? Thanks for your input, Spencer Connected by DROID on Verizon Wireless

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Re: [SR-Users] Kamailio Redundancy examples/pointers required
by Javier Gallart 30 Jan '12

30 Jan '12

Hello the net.ipv4.ip_nonlocal_bind = 1 options works fine. We have a very basic redundancy level, but it fits our current needs; sometimes it's even harder to troubleshoot the redundancy failures than the actual failures. We have 2 identical servers running kamailio and listening to the same ip addresses/ports (you need to enable the sysctl option for that). A heartbeat process controls in what machine the actual ip addresses are active. The DB is in one of the servers but we update the shared memory in both. For us having the DB down for a while is not critical because all the data is in memory. When one servers goes down the other one takes over immediately. It's a very comfortable setup also for doing upgrades in the configuration in a controlled manner. Hope it helps Regards Javi > ------------------------------ > > Message: 6 > Date: Thu, 26 Jan 2012 12:13:18 +0500 > From: Sammy Govind <govoiper(a)gmail.com> > Subject: Re: [SR-Users] Kamailio Redundancy examples/pointers required > To: "SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) - > Users Mailing List" <sr-users(a)lists.sip-router.org> > Message-ID: > <CAJUJwtjMGTuNe1Cu5+BDthgj0xrSJrBM03XzcjZhWJ8Ar7=onQ(a)mail.gmail.com > > > Content-Type: text/plain; charset="iso-8859-1" > > Hi, > Thanks for taking out time for this. really appreciate your ideas. Here are > few things I've found useful so far. > > http://kamailio.org/events/2011-fosdem/p_usrloc.pdf > This looks like one thing that one could have to ensure more reliability > but we do need other application level and physical level failover > techniques additionally. > > For using any technique like Linux-HA, Heartbeat, keepalived, UCARP or any > floating/virtual IP techniques I really hope that the sysctl option > mentioned in b/m thread really works. > http://www.mail-archive.com/sr-users@lists.sip-router.org/msg03714.html > http://old.nabble.com/Kamilio-Failover-Options-td21947502.html > DNS SRV is one option. Using another Kamailio on top of two Kamailio is > again a SPOF so I think its of no use at all. > > I hope to get a very reliable and working solution out of these forums. > > Regards, > Sammy > > On Wed, Jan 25, 2012 at 9:49 PM, Andreas Granig <agranig(a)sipwise.com> > wrote: > > > Hi Sammy, > > > > On 01/25/2012 02:08 PM, Sammy Govind wrote: > > > I've been looking for ways to create a redundant Kamailio cluster. I've > > > googled alot but haven't got any concrete or final wording on any one > > > solution that'll just work perfectly. The basic requirement is that in > > > > HA is never really easy :) > > > > > case of Kamailio application failure or in case of physical machine > > > error the whole setup just starts working on secondary server. > > > > > > Please suggest anything whichever you guys are using. Any reference > URLs > > > would be very much appreciated. > > > > For 1+1 setups, you can use a master/master replication (people also use > > drbd to sync the whole table space, not sure how good that works) on db > > level, use write-back mode in kamailio to make sure your registrations > > are written to DB immediately, then use heartbeat to do the IP/process > > fail-overs on network/power failures. On top, you can do manual checks > > to trigger a fail-over in case of high-level failures. I guess this is > > the typical and most straight-forward scenario. Your mileage might vary, > > depending on specific environment variables (e.g. you might want to > > announce your active server via RIP/OSPF using quagga instead of the > > more common gratuitous arp if your servers are geographically split). > > > > For scaling larger, put a kamailio instance acting as load-balancer in > > front of your proxies and scale them by providing some sharding > > information to the lb. > > > > Also the new db_cassandra backend in master branch looks pretty > > promising when it comes to HA/scaling. Maybe someone can provide some > > best practices regarding that as well? > > > > Andreas > > > > > > _______________________________________________ > > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > > sr-users(a)lists.sip-router.org > > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > > > > >

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Using forward(); with PVs
by Spencer Thomason 28 Jan '12

28 Jan '12

Hello, I'm experiencing some difficulty using forward with PVs. If the IP and port are specified directly everything works but if I use PVs for the values startup fails with a configuration error. What I'm trying to do is statelessly forward an OPTIONS request to a B2BUA that sits behind Kamailio without hard coding the address into the configuration file. Is there a better way to accomplish this? Thanks, Spencer Connected by DROID on Verizon Wireless

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Selects vs PVs
by Spencer Thomason 28 Jan '12

28 Jan '12

Hello all, I'm currently reworking our routing scripts in preparation for an upgrade to 3.2.2 from 3.1.5. I'm taking this time to perform a general cleanup an optimization. In regard to selects vs PVs, is there any reason to choose one or the other select over a PV when both exist for the needed data? Thanks, Spencer

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AVPs vs Variables
by Spencer Thomason 27 Jan '12

27 Jan '12

Hello all, I'm a little confused as to the difference between avps and vars and when I would use one or the other. I'm currently using sqlops to populate a few avps. Would vars be more suitable? Thanks, Spencer Connected by DROID on Verizon Wireless

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pua_usrloc, PUBLISH not send when contact is deleted or expires
by Giacomo Vacca 27 Jan '12

27 Jan '12

Hi all, I've made a clean installation of kamailio 3.2.0 from 'http://deb.kamailio.org/kamailio32 squeeze main' repository, on a squeeze debian machine (2.6.32-5-686). Installed also kamailio-presence-modules, same version. I'm just using the default kamailio.cfg that comes with the package, with these minimal additions: loadmodule "db_text.so" loadmodule "pua.so" loadmodule "pua_usrloc.so" ... modparam("pua", "db_url", "text:///usr/share/kamailio/dbtext/kamailio") modparam("pua_usrloc", "default_domain", "192.168.142.130") Inside the registration management logic I've added pua_set_publish() right before saving the location: route[REGISTRAR] { if (is_method("REGISTER")) { ... pua_set_publish(); if (!save("location")) sl_reply_error(); exit; } } When I first register (XLite 4.1 for Windows), pua_usrloc correctly gets the callback and is able to generate a PUBLISH request through pua. But when there's an un-registration, or when the contact expires, even if the callbacks are correctly fired, the PUBLISH (which I'd expect with status 'closed') is not generated. >From the logs (debug level 4), an un-registration: 8(7652) DEBUG: usrloc [ul_callback.h:89]: contact=0xb50ae7cc, callback type 4/4, id 3 entered 8(7652) DEBUG: pua_usrloc [ul_publish.c:216]:DELETE type 8(7652) DEBUG: pua_usrloc [ul_publish.c:255]: uri= sip:20701090@192.168.142.130 8(7652) DEBUG: pua_usrloc [ul_publish.c:66]: publ: 8(7652) DEBUG: pua_usrloc [ul_publish.c:67]: uri= sip:20701090@192.168.142.130 8(7652) DEBUG: pua_usrloc [ul_publish.c:68]: id=UL_PUBLISH.NmY5Zjc2YjcwNzEwNTk4YTY1NzA2Y2Y0MWQyMGRhOGY. 8(7652) DEBUG: pua_usrloc [ul_publish.c:69]: expires= 0 8(7652) DEBUG: pua [send_publish.c:403]: pres_uri=sip:20701090@192.168.142.130 8(7652) DEBUG: pua [hash.c:121]: core_hash= 444 8(7652) DEBUG: pua [hash.c:174]: record not found 8(7652) DEBUG: pua [send_publish.c:444]: insert type 8(7652) DEBUG: pua [send_publish.c:448]: UPDATE_TYPE and no record found 8(7652) DEBUG: pua [send_publish.c:454]: request for a publish with expires 0 and no record found 8(7652) DEBUG: sl [sl.c:278]: reply in stateless mode (sl) As an additional information, the pua table in /usr/share/kamailio/dbtext/kamailio/pua has not been populated. The AOR was correctly displayed with 'ul show' while the registration was valid. Any suggestion on what am I be doing wrong? Would it be worth testing the same scenario using mysql as DB? Thanks in advance for your time. Giacomo Truphone Limited is a limited liability company registered in England & Wales, registered office: 5 New Street Square, London EC4A 3TW. Registered No. 04187081. VAT No. GB 851 5278 19. Tru is a brand name of Truphone and is a Truphone Communications Service. Truphone is a trading name for a number of distinct legal entities that operate in combination. www.truphone.com<http://www.truphone.com>. This e-mail, and any attachment(s), may contain information which is confidential and/or privileged, and is intended for the addressee only. If you are not the intended recipient, you may not use, disclose, copy or distribute this information in any manner whatsoever. If you have received this e-mail in error, please contact the sender immediately and delete it.

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rpid to from header.
by David 27 Jan '12

27 Jan '12

One of my upstream gateways does not support rpid, so I want to rewrite the from header from the rpid. is just a matter if setting $fU = $rpid? Thanks.

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dbcassandra - 483
by David 27 Jan '12

27 Jan '12

Anca, for some strange reason I am getting "SIP/2.0 483 Too Many Hops" back when I try to register. I am running kamaikio -EEEEEE and I see we get authenticated correctly but then lots of other info is spit out very quickly and I am having a hard time trying to understand it. I think it may have to do with the location table. But I could be wrong. Any ideas how to debug? Thank you.

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Radius Generates Core Dump
by Omar Labs 188 Gmail 27 Jan '12

27 Jan '12

Hello: I was testing the Server Kamailio 3.2.1 with Accounting and Radius, it crash generating a Big Core Dump, and freezing up, If I remove the Radius module from configuration, accounting via the database works fine. Did anybody else have the same problem. Appears a Memory leak. Thanks

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Kamailio for Wholesale Termination
by Abid Naseem 27 Jan '12

27 Jan '12

Dear *All*, I am new to voip world and interested in knowing if I we can use *KAMAILIO + * *SIREMIS *for wholesale voip termination? We buy direct routes and give it to resellers..currently using asterisk. appreciate your support! keep inspiring. -- Regards, *Abid Naseem* +44 (793) 741 5043 +1 (415) 562 6333

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