<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hi,<br class=""><br class=""><br class="">Recently update a server to Debian 10 with freeswitch git Version 1.10.7-dev git 432bfc0 2021-07-27, and after a few days I start to see lot of expired registers and new invites rejected with “ 503 System Busy”. I restart FS and everything is ok. <div class="">Also no log print in FS console that could point me to the root cause of the issue. </div><div class=""> <br class="">The server before the update was running debian 8 with freeswitch Version 1.10.4-dev git 546bebb 2020-08-03 and never see this issue.<br class=""><br class=""><br class="">The hardware of the server is a ProLiant DL165 G7: <br class="">2 x AMD Opteron(tm) Processor 6128, Cores por CPU: 8, Cores totales: 16 <br class="">26 GB RAM<br class=""><br class="">The system is not with high load at the time the issue was occurring, fs status report:<br class=""><div class=""><br class="">freeswitch@srvone> status<br class="">UP 0 years, 2 days, 21 hours, 50 minutes, 23 seconds, 264 milliseconds, 655 microseconds<br class="">FreeSWITCH (Version 1.10.7-dev git 432bfc0 2021-07-27 19:25:13Z 64bit) is ready<br class="">147010 session(s) since startup<br class="">86 session(s) - peak 251, last 5min 91 <br class="">0 session(s) per Sec out of max 50, peak 26, last 5min 5 <br class="">2000 session(s) max<br class="">min idle cpu 5.00/66.57<br class="">Current Stack Size/Max 240K/8192K<br class=""><br class=""><br class="">From the source code, Sofia.c:2496<br class=""><span class="Apple-tab-span" style="white-space:pre"> </span>if (switch_queue_size(mod_sofia_globals.msg_queue) > (unsigned int)critical) {<br class=""><span class="Apple-tab-span" style="white-space:pre"> </span>nua_respond(nh, 503, "System Busy", SIPTAG_RETRY_AFTER_STR("300"), NUTAG_WITH_THIS(nua), TAG_END());<br class=""><span class="Apple-tab-span" style="white-space:pre"> </span>goto end;<br class=""><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">So the trigger here is the msg_queue hitting the critical value, for what I could check in the source code, is the value of 7200. </div><div class="">This value is the maximum number of sip dialogs that FS can handle?</div><div class=""><br class=""></div><div class="">I’ve some endpoints registered using TCP, can they affect the msg_queue? </div><div class=""><br class=""></div><div class="">I can’t think of a route cause for this issue… any hint? </div><div class=""><br class=""></div><div class="">Thanks for the help. <br class=""><br class=""><br class=""><div class="">
<div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;">--<br class="Apple-interchange-newline">Saludos / Regards / Cumprimentos</div><div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;">António Silva</div><br class="Apple-interchange-newline"></div><br class="Apple-interchange-newline"><br class="Apple-interchange-newline">
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