<div dir="ltr"><br><div class="gmail_extra"><br><br><div class="gmail_quote">On Sat, Oct 26, 2013 at 1:35 AM, Muhammad Shahzad Shafi <span dir="ltr"><<a href="mailto:shahzad@voip-demos.com" target="_blank">shahzad@voip-demos.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><u></u>
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<p><span>This is pretty strange, since it never happened to me on an AMD machine, though i have different model, AMD Athlon II X2 250e.</span></p>
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<div>Can you try using fr_timer_avp? e.g.</div>
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<div>modparam("tm", "fr_timer_avp", "$avp(10)")</div>
<div>modparam("tm", "fr_inv_timer_avp", "$avp(20)")</div>
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<div>See more info,</div>
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<div><a href="http://www.opensips.org/html/docs/modules/1.10.x/tm.html#id293753" target="_blank">http://www.opensips.org/html/docs/modules/1.10.x/tm.html#id293753</a></div>
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<div> </div>
<div>Set these vars and print xlog when INVITE comes in.</div>
<div> </div>
<div>branch_route {</div>
<div>...</div>
<div>
<div><span></span> $avp(10) = 5;</div>
<div><span></span> $avp(20) = 60;</div>
</div>
<div><span></span> xlog("L_NOTICE", "[$pr:$fU@$si:$sp]: Setting TRY timer to '$avp(10)' and RING timer to '$avp(20)' for call from '$fu' to '$ru' \n");</div>
<div>...</div>
<div>}</div>
<div> </div>
<div> </div>
<div>Then check in failure route,</div>
<div> </div>
<div>failure_route {</div>
<div>...</div>
<div>
<div><span></span> if (t_check_status("408")) {</div>
<div><span></span> if ( t_local_replied("all") ) {</div>
<div><span></span> # local timeout with no reply received -> fr_timer</div>
<div><span></span> xlog("L_NOTICE", "[$pr:$fU@$si:$sp]: Timeout on TRY timer for '$rm' from '$fu' to '$ru' after '$avp(10)' seconds \n");</div>
<div><span></span> } else if ( t_local_replied("last") ) {</div>
<div><span></span> # timeout with replies received -> fr_inv_timer</div>
<div><span></span> xlog("L_NOTICE", "[$pr:$fU@$si:$sp]: Timeout on RING timer for '$rm' from '$fu' to '$ru' after '$avp(20)' seconds \n");</div>
<div><span></span> } else {</div>
<div><span></span> # received timeout</div>
<div><span></span> xlog("L_NOTICE", "[$pr:$fU@$si:$sp]: Timeout on T2 timer for '$rm' from '$fu' to '$ru' after '$avp(20)' seconds \n");</div>
<div><span></span> };</div>
<div><span></span> };</div>
</div>
<div>...</div>
<div>}</div>
<div> </div>
<div> </div>
<div>This will make things clearer if there is any problem.</div><br></div></blockquote><div><br></div><div>Hello Muhammad,</div><div>thanks for the info.<br></div><div>I fail to make it clear that this is a problem with opensips running on virtual machines.<br>
</div><div><span>The problem only happens on </span>virtualized AMD Opteron(tm) Processor 6344 (on KVM).<br><br></div><div>Actually, we first detected this problem using fr_timer_avp, then we proceeded to check with fr_timer parameter.<br>
I forgot to mention that I have opened a ticket with more details about this:<br><a href="https://github.com/OpenSIPS/opensips/issues/107">https://github.com/OpenSIPS/opensips/issues/107</a><br><br></div><div>Our conclusion was that the VM host is failing to send all ticks to the VM guest maybe assuming it is running in tickless mode (although I am using KVM, a read about this on a VMWare doc). So time passes slowly to the VM guest. <br>
We could not solve yet this issue so for now, the solution is to run on a different VM host using a different CPU model.<br>Regards,<br>Takeshi<br> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<p>On 2013-10-25 09:35, mayamatakeshi wrote:</p>
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<div class="gmail_extra"><br><br>
<div class="gmail_quote">On Tue, Oct 15, 2013 at 10:09 AM, mayamatakeshi <span><<a href="mailto:mayamatakeshi@gmail.com" target="_blank">mayamatakeshi@gmail.com</a>></span> wrote:<br>
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<div>Hello,<br>I have some servers running opensips 1.10 commit bfd86ab25554082053167a82655e669ca1c0ea7c<br><br></div>
I am seeing an issue in them that i cannot reproduce in other servers:</div>
the fr_timer is not respected.<br>I set tm fr_timer=5 and use sipp to make a call and make opensips to send the call to an address that is not being listened by any app like <a href="http://127.0.0.1:5010" target="_blank">127.0.0.1:5010</a>.</div>
In these servers, sometimes timeout happens after 6, 9, 12 seconds but never (so far after) 5 seconds.</div>
But in other machines, fr_timer is consistently respected.</div>
So I am trying to figure out what would be causing this.</div>
<div>Does anyone have any idea of configuration of the server that could cause this?</div>
<div>The only significant difference I see is that on the problematic servers corosync was installed for HA (to control opensips switchover) but I don't see how this could have such impact.</div>
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</blockquote>
<div> </div>
<div>Just in case someone else gets into this.</div>
<div>We verified the problem only happens if the VM runs on a VM host using this processor:<br>
<div style="text-indent:0px;letter-spacing:normal;font-variant:normal;text-align:start;font-style:normal;font-weight:normal;line-height:normal;color:rgb(34,34,34);text-transform:none;font-size:12.6667px;white-space:normal;font-family:arial,sans-serif;word-spacing:0px">
<br>
<div>model name : AMD Opteron(tm) Processor 6344</div>
</div>
<div style="text-indent:0px;letter-spacing:normal;font-variant:normal;text-align:start;font-style:normal;font-weight:normal;line-height:normal;color:rgb(34,34,34);text-transform:none;font-size:12.6667px;white-space:normal;font-family:arial,sans-serif;word-spacing:0px">
</div>
<div style="text-indent:0px;letter-spacing:normal;font-variant:normal;text-align:start;font-style:normal;font-weight:normal;line-height:normal;color:rgb(34,34,34);text-transform:none;font-size:12.6667px;white-space:normal;font-family:arial,sans-serif;word-spacing:0px">
On the server where we have this one:</div>
<div style="text-indent:0px;letter-spacing:normal;font-variant:normal;text-align:start;font-style:normal;font-weight:normal;line-height:normal;color:rgb(34,34,34);text-transform:none;font-size:12.6667px;white-space:normal;font-family:arial,sans-serif;word-spacing:0px">
</div>
<div style="text-indent:0px;letter-spacing:normal;font-variant:normal;text-align:start;font-style:normal;font-weight:normal;line-height:normal;color:rgb(34,34,34);text-transform:none;font-size:12.6667px;white-space:normal;font-family:arial,sans-serif;word-spacing:0px">
model name : Intel(R) Xeon(R) CPU X5550 @ 2.67GHz</div>
</div>
</div>
there is no problem.<br><br>Regards,<br>Takeshi</div>
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<pre>--
Mit freundlichen Grüßen
Muhammad Shahzad
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Email: <a href="mailto:shaheryarkh@googlemail.com" target="_blank">shaheryarkh@googlemail.com</a></pre>
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