[asterisk-users] Unix connections not always disconnecting

Thu Nov 7 05:20:12 CST 2013

Hi

We are using asterisk 1.8.23.1

We have a script that runs on a minute cron which polls the asterisk server
for 3 bits of information by using

asterisk -rx 'command'

which then gets pushed to a graphite server we have

99% of this runs smoothly.

Every now and again, the asterisk service will become completely
unresponsive and if we look at the logs we will see the following:

[2013-11-07 00:17:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:17:01] VERBOSE[26566] asterisk.c:     -- Remote UNIX
connection disconnected
[2013-11-07 00:17:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:17:01] VERBOSE[26586] asterisk.c:     -- Remote UNIX
connection disconnected
[2013-11-07 00:17:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:18:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:18:01] VERBOSE[26650] asterisk.c:     -- Remote UNIX
connection disconnected
[2013-11-07 00:18:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:18:01] VERBOSE[26670] asterisk.c:     -- Remote UNIX
connection disconnected
[2013-11-07 00:18:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:19:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:19:01] VERBOSE[26736] asterisk.c:     -- Remote UNIX
connection disconnected
[2013-11-07 00:19:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:19:01] VERBOSE[26756] asterisk.c:     -- Remote UNIX
connection disconnected
[2013-11-07 00:19:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:20:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:20:01] VERBOSE[26820] asterisk.c:     -- Remote UNIX
connection disconnected
[2013-11-07 00:20:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:20:01] VERBOSE[26841] asterisk.c:     -- Remote UNIX
connection disconnected
[2013-11-07 00:20:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:21:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:21:01] VERBOSE[26914] asterisk.c:     -- Remote UNIX
connection disconnected
[2013-11-07 00:21:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:21:01] VERBOSE[26934] asterisk.c:     -- Remote UNIX
connection disconnected
[2013-11-07 00:21:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:22:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:22:01] VERBOSE[27000] asterisk.c:     -- Remote UNIX
connection disconnected
[2013-11-07 00:22:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:22:01] VERBOSE[27020] asterisk.c:     -- Remote UNIX
connection disconnected
[2013-11-07 00:22:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:23:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:23:01] VERBOSE[27084] asterisk.c:     -- Remote UNIX
connection disconnected
[2013-11-07 00:23:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:23:01] VERBOSE[27104] asterisk.c:     -- Remote UNIX
connection disconnected
[2013-11-07 00:23:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:24:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:24:01] VERBOSE[27170] asterisk.c:     -- Remote UNIX
connection disconnected
[2013-11-07 00:24:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:24:01] VERBOSE[27190] asterisk.c:     -- Remote UNIX
connection disconnected
[2013-11-07 00:24:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:25:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:25:01] VERBOSE[27255] asterisk.c:     -- Remote UNIX
connection disconnected
[2013-11-07 00:25:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:25:01] VERBOSE[27276] asterisk.c:     -- Remote UNIX
connection disconnected
[2013-11-07 00:25:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:26:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:26:01] VERBOSE[27624] asterisk.c:     -- Remote UNIX
connection disconnected
[2013-11-07 00:26:01] VERBOSE[25963] asterisk.c:     -- Remote UNIX
connection
[2013-11-07 00:26:01] VERBOSE[27644] asterisk.c:     -- Remote UNIX
connection disconnected

As you can see, at these times there isn't a disconnect for every connect.
I think this ends up maxing out the amount of connections the service
allows and that's what makes it unresponsive. A service restart fixes the
issue at this time.

This happens completely randomly, I've not been able to correlate this
happening with any other events that are going on at the time.

Can anyone think of any reason why doing the asterisk -rx command might not
disconnect cleanly?

Thanks in Advance

Ish

-- 

Ishfaq Malik
Department: VOIP Support
Company: Packnet Limited
t: +44 (0)845 004 4994
f: +44 (0)161 660 9825
e: ish at pack-net.co.uk
w: http://www.pack-net.co.uk

Registered Address: PACKNET LIMITED, Duplex 2, Ducie House
37 Ducie Street
Manchester, M1 2JW
COMPANY REG NO. 04920552
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