<div dir="ltr">Hello<div><br></div><div>I wanted to give an update on this.</div><div><br></div><div>My business partner that found the issue and has been monitoring the problem has tracked down the issue. It turns out that the features we implemented using the async module were leading to more calls going on con currently (as they were intended to) and this was causing and issue with voip monitor. So the issue was not with the Async module.</div><div><br></div><div>All the best.</div><div><br></div><div>Will Ferrer</div><div><br></div><div>Switchsoft</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Jan 19, 2015 at 8:43 PM, Will Ferrer <span dir="ltr"><<a href="mailto:will.ferrer@switchsoft.com" target="_blank">will.ferrer@switchsoft.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi All<br><br>We are trying to use the async module to to delay sending a bye on from one end of the call to the other.<br><br>We are using async_route(routename, seconds) to delay the WITHINDLG route. The idea is that in the future we want to be able to have our billing min duration enforced (though currently we are having issues with the dialog module that we are discussing in another thread).<div><br></div><div>After running this on our deploy servers, the delays before sending on the byes get longer and longer, and then kamailio goes down. Then the receive udp buffer fills up.<br><br>We tried it with both 4 and 400 async workers, and it made no difference.</div><div><br></div><div>I am including a screen capture of the servers stats when this happens taken from voip monitor.</div><div><br></div><div>Here are the relevant parts of the config:</div><div><br></div><div>...</div><div>loadmodule "async.so"<br></div><div>...</div><div>modparam("async", "workers", ASYNC_THREADS)<br></div><div>...</div><div>request_route {<br>...</div><div>route(DELAYED_BYE_STATIC);<br></div><div>...</div><div><div>route[DELAYED_BYE_STATIC] {</div><div><span style="white-space:pre-wrap"> </span>xlog("L_DEBUG","route DELAYED_BYE_STATIC");</div><div><span style="white-space:pre-wrap"> </span>#!ifdef WITH_DELAYED_BYE_STATIC</div><div><span style="white-space:pre-wrap"> </span>if (is_method("BYE")) {</div><div><span style="white-space:pre-wrap"> </span>xlog("L_DEBUG","route DELAYED_BYE_STATIC, from self \n");</div><div><span style="white-space:pre-wrap"> </span>#if (from_uri == myself) {</div><div><span style="white-space:pre-wrap"> </span>if ((allow_trusted() || allow_source_address()) && from_uri == myself) {</div><div><span style="white-space:pre-wrap"> </span>xlog("L_DEBUG","route DELAYED_BYE_STATIC, Bye detected, from self \n");</div><div><span style="white-space:pre-wrap"> </span>send_reply("200", "OK");</div><div><span style="white-space:pre-wrap"> </span>xlog("L_DEBUG","route DELAYED_BYE_STATIC, sent 200 about to sleep \n");</div><div><span style="white-space:pre-wrap"> </span>setflag(FLT_ACC); # do accounting ...</div><div><span style="white-space:pre-wrap"> </span>setflag(FLT_ACCFAILED); # ... even if the transaction fails</div><div><span style="white-space:pre-wrap"> </span>if (has_totag()) {</div><div><span style="white-space:pre-wrap"> </span>xlog("L_DEBUG","route DELAYED_BYE_STATIC, sleeping to WITHINDLG_DELAYED \n");</div><div><span style="white-space:pre-wrap"> </span>async_route("WITHINDLG_DELAYED", MIN_DURATION);</div><div><span style="white-space:pre-wrap"> </span>} else {</div><div><span style="white-space:pre-wrap"> </span>xlog("L_DEBUG","route DELAYED_BYE_STATIC, sleeping to WITHINDLG \n");</div><div><span style="white-space:pre-wrap"> </span>async_route("WITHINDLG", MIN_DURATION);</div><div><span style="white-space:pre-wrap"> </span>}</div><div><span style="white-space:pre-wrap"> </span>xlog("L_DEBUG","route DELAYED_BYE_STATIC, slept\n");</div><div><span style="white-space:pre-wrap"> </span>exit;</div><div><span style="white-space:pre-wrap"> </span>}</div><div><span style="white-space:pre-wrap"> </span>}</div><div><span style="white-space:pre-wrap"> </span>#!endif</div><div><span style="white-space:pre-wrap"> </span>return;</div><div>}</div></div><div>...</div><div><div>route[WITHINDLG_DELAYED] {</div><div><span style="white-space:pre-wrap"> </span>xlog("L_DEBUG", "route WITHINDLG_DELAYED: triggered \n");</div><div><span style="white-space:pre-wrap"> </span>$avp(was_delayed) = 1;</div><div><span style="white-space:pre-wrap"> </span>route(WITHINDLG);</div><div>}</div></div><div>...</div><div><div>route[WITHINDLG] {</div><div><span style="white-space:pre-wrap"> </span>xlog("L_DEBUG", "route WITHINDLG: will -- DLG triggered, request method: $rm \n");</div><div><span style="white-space:pre-wrap"> </span>#!ifdef WITH_DISPATCHER</div><div><span style="white-space:pre-wrap"> </span>if(is_method("BYE|CANCEL")) {</div><div><span style="white-space:pre-wrap"> </span>xlog("L_DEBUG","route WITHINDLG: cancel or bye detected, request method: $rm \n");</div><div><span style="white-space:pre-wrap"> </span>#!ifdef WITH_DISPATCHER_LOAD_AWARE</div><div><span style="white-space:pre-wrap"> </span>xlog("L_DEBUG","route WITHINDLG: running ds_load_update, request method: $rm \n");</div><div><span style="white-space:pre-wrap"> </span>ds_load_update();</div><div><span style="white-space:pre-wrap"> </span>#dlg_get ("$ci","$ft","$tt"); </div><div><span style="white-space:pre-wrap"> </span> <span style="white-space:pre-wrap"> </span>#dlg_bye ("all");</div><div> <span style="white-space:pre-wrap"> </span>#!endif</div><div><span style="white-space:pre-wrap"> </span>}</div><div><span style="white-space:pre-wrap"> </span>#!endif</div><div><br></div><div><span style="white-space:pre-wrap"> </span>if (has_totag() || $avp(was_delayed) == 1) {</div><div><span style="white-space:pre-wrap"> </span>xlog("L_DEBUG", "route WITHINDLG: will -- DLG has totag or was_delayed: $avp(was_delayed) \n");</div><div><span style="white-space:pre-wrap"> </span># sequential request withing a dialog should</div><div><span style="white-space:pre-wrap"> </span># take the path determined by record-routing</div><div><span style="white-space:pre-wrap"> </span>if (loose_route()) {</div><div><span style="white-space:pre-wrap"> </span>xlog("L_DEBUG", "route WITHINDLG: will -- DLG has loose route \n");</div><div><span style="white-space:pre-wrap"> </span>route(DLGURI);</div><div><span style="white-space:pre-wrap"> </span>if (is_method("BYE")) {</div><div><span style="white-space:pre-wrap"> </span>xlog("L_DEBUG","route WITHINDLG: BYE detected");</div><div><span style="white-space:pre-wrap"> </span>setflag(FLT_ACC); # do accounting ...</div><div><span style="white-space:pre-wrap"> </span>setflag(FLT_ACCFAILED); # ... even if the transaction fails</div><div><span style="white-space:pre-wrap"> </span>xlog("L_DEBUG","route WITHINDLG: ACC flag set");</div><div><span style="white-space:pre-wrap"> </span></div><div><span style="white-space:pre-wrap"> </span>}</div><div><span style="white-space:pre-wrap"> </span>else if ( is_method("ACK") ) {</div><div><span style="white-space:pre-wrap"> </span># ACK is forwarded statelessy</div><div><span style="white-space:pre-wrap"> </span>route(NATMANAGE);</div><div><span style="white-space:pre-wrap"> </span>}</div><div><span style="white-space:pre-wrap"> </span>else if ( is_method("NOTIFY") ) {</div><div><span style="white-space:pre-wrap"> </span># Add Record-Route for in-dialog NOTIFY as per RFC 6665.</div><div><span style="white-space:pre-wrap"> </span>record_route();</div><div><span style="white-space:pre-wrap"> </span>}</div><div><span style="white-space:pre-wrap"> </span>xlog("L_DEBUG", "route WITHINDLG: will -- DLG RELAY 1\n");</div><div><span style="white-space:pre-wrap"> </span>route(RELAY);</div><div><span style="white-space:pre-wrap"> </span>} else {</div><div><span style="white-space:pre-wrap"> </span>xlog("L_DEBUG", "route WITHINDLG: will -- DLG else \n");</div><div><span style="white-space:pre-wrap"> </span>if (is_method("SUBSCRIBE") && uri == myself) {</div><div><span style="white-space:pre-wrap"> </span># in-dialog subscribe requests</div><div><span style="white-space:pre-wrap"> </span>route(PRESENCE);</div><div><span style="white-space:pre-wrap"> </span>exit;</div><div><span style="white-space:pre-wrap"> </span>}</div><div><span style="white-space:pre-wrap"> </span>if ( is_method("ACK") ) {</div><div><span style="white-space:pre-wrap"> </span>xlog("L_DEBUG", "route WITHINDLG: will -- DLG is ack \n");</div><div><span style="white-space:pre-wrap"> </span>if ( t_check_trans() ) {</div><div><span style="white-space:pre-wrap"> </span>xlog("L_DEBUG", "route WITHINDLG: will -- DLG t_check_trans \n");</div><div><span style="white-space:pre-wrap"> </span># no loose-route, but stateful ACK;</div><div><span style="white-space:pre-wrap"> </span># must be an ACK after a 487</div><div><span style="white-space:pre-wrap"> </span># or e.g. 404 from upstream server</div><div><span style="white-space:pre-wrap"> </span>xlog("L_DEBUG", "route WITHINDLG: will -- DLG RELAY 2\n");</div><div><span style="white-space:pre-wrap"> </span>route(RELAY);</div><div><span style="white-space:pre-wrap"> </span>exit;</div><div><span style="white-space:pre-wrap"> </span>} else {</div><div><span style="white-space:pre-wrap"> </span># ACK without matching transaction ... ignore and discard</div><div><span style="white-space:pre-wrap"> </span>exit;</div><div><span style="white-space:pre-wrap"> </span>}</div><div><span style="white-space:pre-wrap"> </span>}</div><div><span style="white-space:pre-wrap"> </span>sl_send_reply("404","Not here");</div><div><span style="white-space:pre-wrap"> </span>}</div><div><span style="white-space:pre-wrap"> </span>exit;</div><div><span style="white-space:pre-wrap"> </span>}</div><div>}</div></div><div>...</div><div><br></div><div><br></div><div><br></div><div>Does any one know if this is a bug or a leak with in the async module, or perhaps something I am doing in my config?</div><div><br></div><div>Thanks in advance for an assistance you can offer me.</div><div><br></div><div>All the best.</div><span class="HOEnZb"><font color="#888888"><div><br></div><div>Will Ferrer</div><div>Switchsoft</div><div><br></div><div><br></div></font></span></div>
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