[Freeswitch-users] High load on database server

Madovsky infos at madovsky.org
Thu Oct 27 21:51:25 MSD 2011


on this subject,
is SIPp can be used to test to reproduce hundreds calls ?
  ----- Original Message ----- 
  From: Anthony Minessale 
  To: FreeSWITCH Users Help 
  Sent: Thursday, October 27, 2011 1:39 PM
  Subject: Re: [Freeswitch-users] High load on database server


  BTW I know it's a contradiction to tell you to consider older ODBC and newer FS but I wrote FS so I can attest to its stability especially the ODBC code in the core.







  On Thu, Oct 27, 2011 at 12:36 PM, Anthony Minessale <anthony.minessale at gmail.com> wrote:

    Let's recap


    You have 4 moving parts, you have various versions of all 4 to choose from and even different implementations of 3 of the 4.


    ODBC LIB
    ODBC DRIVER
    DATABASE
    FS


    You must choose a stable combination of all 4 which may require specific configuration of each component as well.


    My only issue is FUD, I do not want people to advertise that FS does not work on ODBC under load when the whole story is FS does not work under load when you use fooODBC with barDRIVER with basBASE database server configured a particular way.


    It should never crash, if it does, its a bug in something.  I can speak for FS that there is no bug there.  The other 3 are variables. 
    Remember this next time there is a discussion about using system libs and why we build our own depends.  The one thing we use system libs for, ODBC, is a huge PITA.........


    Things to remember:


    1) try the Threading=0 in the odbcinst.ini, this is a serious problem and has been made the default in latest versions.
    2) If you must use Mysql, enable transactions and make sure your odbc.ini is referencing the threadsafe version of the lib 
         libmyodbc3_r.so <-- note _r
    3) Try various combos of drivers and odbc libs, many time newer is not better, stable versions lie in the past.
    4) build the drivers and odbc yourself or get the debug symbols so you can get a backtrace, you could be finding a bug for them.......
    5) Find a test to reproduce your problem so you can try different database engines and driver combos.
    6) Make sure you are on latest FS git so you know you have a stable copy.




    Anyway, this is a pain, that's why ppl pay you to do it.
    Discuss this all you want here, just minimize any FUD to scare away people who want to use it.











    On Thu, Oct 27, 2011 at 12:24 PM, Hynek Cihlar <hynek.cihlar at gmail.com> wrote:

      Do not agree. Issues happening under extreme cases like high load with
      some specific conditions are hard to reproduce, sharing the
      information in this case is a lot more efficient, for all.


      Sent from my mobile device


      On Oct 27, 2011, at 18:56, Robert Huddleston <rhuddleston at gmail.com> wrote:

      > My bologna has a first name - it's O S C A R...
      >
      > This topic is getting really old... I have to agree with Antm - get out of
      > the lazy pants and do some research / hard work.
      >
      >
      > -----Original Message-----
      > From: freeswitch-users-bounces at lists.freeswitch.org
      > [mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of Sergey
      > Okhapkin
      > Sent: Thursday, October 27, 2011 12:43 PM
      > To: FreeSWITCH Users Help
      > Subject: Re: [Freeswitch-users] High load on database server
      >
      > What do you mean "shared ODBC"?
      >
      > On Thursday 27 October 2011, Madovsky wrote:
      >> but, is anyone experienced that with shared ODBC ? (managing more than 330
      >> concurrent calls)
      >>
      >> ----- Original Message -----
      >> From: "Madovsky" <infos at madovsky.org>
      >> To: "FreeSWITCH Users Help" <freeswitch-users at lists.freeswitch.org>
      >> Sent: Thursday, October 27, 2011 12:33 PM
      >> Subject: Re: [Freeswitch-users] High load on database server
      >>
      >>> ha ok, good luck so
      >>>
      >>> ----- Original Message -----
      >>> From: "Cliff Wells" <cliff at develix.com>
      >>> To: "FreeSWITCH Users Help" <freeswitch-users at lists.freeswitch.org>
      >>> Sent: Thursday, October 27, 2011 12:26 PM
      >>> Subject: Re: [Freeswitch-users] High load on database server
      >>>
      >>>> On Thu, 2011-10-27 at 11:55 -0400, Madovsky wrote:
      >>>>> I means that depend the quality of your script ;)
      >>>>
      >>>> Quality isn't the issue here.  The script is too simple to be incorrect
      >>>> (and it carefully releases the odbc connection back to the pool in a
      >>>> hangup handler).  I have written poor-quality code plenty of times, but
      >>>> 25 years as a programmer usually allows me the luxury of knowing when
      >>>> I'm doing it, thanks.
      >>>>
      >>>> In any case, Lua scripts work fine.  Google will tell you that unixODBC
      >>>> before 2.3.0 was a bit of a mess, so I expect the issue lies there, but
      >>>> again, I emphasize, everything WORKS GREAT (been using it for a couple
      >>>> of years now) until you get to very high concurrency (about 330
      >>>> concurrent calls on a single system).  If you don't expect to handle
      >>>> more than 300 concurrent calls, then you do not need to worry about it.
      >>>> At all.
      >>>>
      >>>> Regards,
      >>>> Cliff
      >>>>
      >>>>
      >>>>
      >>>> FreeSWITCH-users mailing list
      >>>> FreeSWITCH-users at lists.freeswitch.org
      >>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
      >>>>
      > UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
      >>>> http://www.freeswitch.org
      >>
      >> FreeSWITCH-users mailing list
      >> FreeSWITCH-users at lists.freeswitch.org
      >> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
      >> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
      >> http://www.freeswitch.org
      >
      >
      >
      > FreeSWITCH-users mailing list
      > FreeSWITCH-users at lists.freeswitch.org
      > http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
      > UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
      > http://www.freeswitch.org
      >
      >
      >
      > FreeSWITCH-users mailing list
      > FreeSWITCH-users at lists.freeswitch.org
      > http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
      > UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
      > http://www.freeswitch.org


      FreeSWITCH-users mailing list
      FreeSWITCH-users at lists.freeswitch.org
      http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
      UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
      http://www.freeswitch.org






    -- 
    Anthony Minessale II

    FreeSWITCH http://www.freeswitch.org/
    ClueCon http://www.cluecon.com/
    Twitter: http://twitter.com/FreeSWITCH_wire

    AIM: anthm
    MSN:anthony_minessale at hotmail.com
    GTALK/JABBER/PAYPAL:anthony.minessale at gmail.com
    IRC: irc.freenode.net #freeswitch

    FreeSWITCH Developer Conference
    sip:888 at conference.freeswitch.org
    googletalk:conf+888 at conference.freeswitch.org
    pstn:+19193869900






  -- 
  Anthony Minessale II

  FreeSWITCH http://www.freeswitch.org/
  ClueCon http://www.cluecon.com/
  Twitter: http://twitter.com/FreeSWITCH_wire

  AIM: anthm
  MSN:anthony_minessale at hotmail.com
  GTALK/JABBER/PAYPAL:anthony.minessale at gmail.com
  IRC: irc.freenode.net #freeswitch

  FreeSWITCH Developer Conference
  sip:888 at conference.freeswitch.org
  googletalk:conf+888 at conference.freeswitch.org
  pstn:+19193869900



------------------------------------------------------------------------------



  FreeSWITCH-users mailing list
  FreeSWITCH-users at lists.freeswitch.org
  http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
  UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
  http://www.freeswitch.org
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.freeswitch.org/pipermail/freeswitch-users/attachments/20111027/93159050/attachment.html 


Join us at ClueCon 2011 Aug 9-11, 2011
More information about the FreeSWITCH-users mailing list