Hi Pasan,
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.
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).
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
https://www.opensips-solutions.com
OpenSIPS Summit 2019
https://www.opensips.org/events/Summit-2019Amsterdam/
On 01/16/2019 05:06 AM, Pasan Meemaduma via Users wrote:
Hi Guys,
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 ?
I'm using opensips 2.3.6
<err> /usr/sbin/opensips[27139]: ERROR:proto_hep:hep_udp_send:
sendto(sock,0x7fc2facaff58,5792,0,0x7fc2fa84d858,16): Resource
temporarily unavailable(11)
sip traffic -> internet facing interface (public ip) (opensips)
internal admin interface (private ip )
udp:9060 ---- > udp:9060 internal admin interface (private ip)
(opensips sip capturer)
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.
net.core.rmem_max
net.core.rmem_default
net.core.wmem_max
net.core.wmem_default
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