asterisk users - May 2008 - Asterisk semi-hangs

Hello,

(Note: again, I'm asking for experiences/suggestions, because
we have a problem in some environment that it's quite difficult to
debug, test, etc.)

I have seen, during last year, that some Asterisk has hangup up. I mean,
not crashing, we could access to Asterisk console, but phones couldn't
call. Doing "dial xxxx at context" was not doing/showing anything,
even
with verbose setted up as 99. This was in Asterisk 1.2

Now, in a couple of Asterisk 1.4 boxes (I think that Asterisk
1.4.19.2?), this has happened again. Not often, every some months maybe,
etc. One installation is only using VoIP, so I don't think that it's a
Zaptel, Misdn, etc. problem.

Even typing "stop now" nothing is happening, killall asterisk either,
only killall -9 asterisk. 

We use a standard installation (no extra modules, etc.)

Debian distribution, our Kernel.

Has anyone some experience like this? Anything to tune? or something
to see? (logs doesn't say a lot, and hard disk is not full :-) )

We would like to avoid that this is happening again, understand why is
happening, etc.

Thank you,

-- 
Carles Pina i Estany		GPG id: 0x8CBDAE64
	http://pinux.info	Manresa - Barcelona

The main thing I have noticed over the years that causes temporary
asterisk hangs is the DNS server asterisk is trying to use becoming
inaccessible. If a network issue causes Asterisk to be unable to
connect to the DNS server you will get the classic freeze on the
console and then when the DNS server is accessible again a flood of
messages. This could be your problem although if the console never
comes back perhaps not.

Hopefully 1.6 will be able to cope better with an unresponsive DNS and
at the very least be able to continue running and carry out any tasks
that aren't related to DNS lookups.

Regards,

Greyman.

Welcome to the club.
http://lists.digium.com/pipermail/asterisk-users/2008-May/212281.html ->
Another similar issue.
http://bugs.digium.com/view.php?id=12709 -> Bug report for it.

Mark.

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Carles Pina i
Estany
Sent: May 24, 2008 7:56 AM
To: asterisk-users at lists.digium.com
Subject: [asterisk-users] Asterisk semi-hangs


Hello,

(Note: again, I'm asking for experiences/suggestions, because
we have a problem in some environment that it's quite difficult to
debug, test, etc.)

I have seen, during last year, that some Asterisk has hangup up. I mean,
not crashing, we could access to Asterisk console, but phones couldn't
call. Doing "dial xxxx at context" was not doing/showing anything,
even
with verbose setted up as 99. This was in Asterisk 1.2

Now, in a couple of Asterisk 1.4 boxes (I think that Asterisk
1.4.19.2?), this has happened again. Not often, every some months maybe,
etc. One installation is only using VoIP, so I don't think that it's a
Zaptel, Misdn, etc. problem.

Even typing "stop now" nothing is happening, killall asterisk either,
only killall -9 asterisk. 

We use a standard installation (no extra modules, etc.)

Debian distribution, our Kernel.

Has anyone some experience like this? Anything to tune? or something
to see? (logs doesn't say a lot, and hard disk is not full :-) )

We would like to avoid that this is happening again, understand why is
happening, etc.

Thank you,

-- 
Carles Pina i Estany		GPG id: 0x8CBDAE64
	http://pinux.info	Manresa - Barcelona

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