[Freeswitch-users] How to troubleshoot "503 Maximum Calls In Progress"?

[Frank Park]

Chris,

Was this issue ever resolved? Anything you learned after this email was
sent?

Thank you,
Frank



On Mon, May 23, 2011 at 6:49 PM, Chris Fowler <chris at fowler.cc> wrote:

> Hi,****
>
> ** **
>
> On our Production FreeSWITCH box: ****
>
> ** **
>
> FreeSWITCH Version 1.0.head (git-4c435ec 2011-03-14 11-54-08 -0500)****
>
> ** **
>
> UP 0 years, 14 days, 6 hours, 28 minutes, 44 seconds, 474 milliseconds,
> 751 microseconds****
>
> 12519 session(s) since startup****
>
> 2 session(s) 0/30****
>
> 1000 session(s) max****
>
> min idle cpu 0.00/100.00****
>
> ** **
>
> At 14:30:37 a reloadxml command was issued.****
>
> At 14:30:43 the box started rejecting all calls with 503 error.  ****
>
> At 14:38 it started working again.  ****
>
> ** **
>
> ** **
>
> Looking at the code I see three conditions can trigger this behavior:****
>
> ** **
>
>               if (sess_count >= sess_max || !sofia_test_pflag(profile,
> PFLAG_RUNNING) || !switch_core_ready()) {****
>
>                         nua_respond(nh, 503, "Maximum Calls In Progress",
> SIPTAG_RETRY_AFTER_STR("300"), TAG_END());****
>
> ** **
>
>                         switch_log_printf(SWITCH_CHANNEL_LOG,
> SWITCH_LOG_CRIT, "No more sessions allowed at this time.\n");****
>
> ** **
>
>                         goto done;****
>
>                }****
>
> ** **
>
> Logs show it wasn’t lack of available sessions.  How can
> sofia_test_pflag(profile, PFLAG_RUNNING) or switch_core_ready() fail and
> busy the system?****
>
> ** **
>
> Thoughts? Thx, Chris.****
>
> ** **
>
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