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<div>Thanks for the reply Bogdan, After controlling what needs to be trace using hep, I was able to eliminate the above error. Its not happening now, It appears to be related with trying to capture all brute-force scan pkt causing the issue. But I'm not 100% sure, I'll try to do what you suggest and see how it goes.</div><div><br></div><div><br></div>
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On Monday, 4 February 2019, 1:20:46 PM GMT+5:30, Bogdan-Andrei Iancu <bogdan@opensips.org> wrote:
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<tt>Hi Pasan,<br clear="none">
<br clear="none">
The "Resource temporarily unavailable" is similar to EAGAIN or
EWOULDBLOCK - meaning that the send will block. But this is an UDP
protocol, so there is nothing much to block - as UDP is a
stateless protocol. Unless it is the buffer in the TCP/IP
stack,between the application layer and the actual network layer -
like the opensips is bursting data, but the kernel has no time to
actually put it on wire.<br clear="none">
<br clear="none">
Try to monitor with netstat the size of the out buffer for the hep
socket (on opensips side), and see if you see buffered data there
(especially correlated with the logs you see).<br clear="none">
<br clear="none">
Regards,<br clear="none">
</tt>
<pre class="yiv9559077236moz-signature">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a rel="nofollow" shape="rect" class="yiv9559077236moz-txt-link-freetext" target="_blank" href="https://www.opensips-solutions.com">https://www.opensips-solutions.com</a>
OpenSIPS Summit 2019
<a rel="nofollow" shape="rect" class="yiv9559077236moz-txt-link-freetext" target="_blank" href="https://www.opensips.org/events/Summit-2019Amsterdam/">https://www.opensips.org/events/Summit-2019Amsterdam/</a>
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<div class="yiv9559077236yqt9531629164" id="yiv9559077236yqtfd46214"><div class="yiv9559077236moz-cite-prefix">On 01/16/2019 05:06 AM, Pasan Meemaduma
via Users wrote:<br clear="none">
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<div class="yiv9559077236ydpcb5935cdyahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;">Hi Guys,</div>
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<div class="yiv9559077236ydpcb5935cdyahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;">I have following setup for homer
integration with opensips. I'm having an issue where opensips
complains with following error time to time. I tried tuning up
buffer sizes, but it doesn't seems to help. Any suggestion on
how to get rid of this ? <br clear="none">
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<div class="yiv9559077236ydpcb5935cdyahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;">I'm using opensips <span>2.3.6</span><br clear="none">
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<div class="yiv9559077236ydpcb5935cdyahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><span><err>
/usr/sbin/opensips[27139]: ERROR:proto_hep:hep_udp_send:
sendto(sock,0x7fc2facaff58,5792,0,0x7fc2fa84d858,16): Resource
temporarily unavailable(11)</span></div>
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<div class="yiv9559077236ydpcb5935cdyahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;">sip traffic -> internet facing
interface (public ip) (opensips)</div>
<div class="yiv9559077236ydpcb5935cdyahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"> internal
admin interface (private ip ) udp:9060 ---- > udp:9060
internal admin interface (private ip) (opensips sip capturer)</div>
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<div class="yiv9559077236ydpcb5935cdyahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;">When the above error pops out it
appears all legit connections get drop too for a brief period. I
tried to increate send/recev buffer sizes, but that didn't help.</div>
<div class="yiv9559077236ydpcb5935cdyahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><br clear="none">
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<div class="yiv9559077236ydpcb5935cdyahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><span>net.core.rmem_max</span></div>
<div class="yiv9559077236ydpcb5935cdyahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><span><span>net.core.rmem_default</span></span></div>
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<div class="yiv9559077236ydpcb5935cdyahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><span>
</span><div class="yiv9559077236ydpcb5935cdyahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><span>net.core.wmem_max</span></div>
<span><span>net.core.wmem_default</span></span><br clear="none">
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<pre>_______________________________________________
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