[Pdns-users] PDNS Crashes

[Anthony Eden]

Unfortunately I'm on RH Linux already, and I sure as hell am not going 
to move to Windows. ;-)  I think it is definitely an issue with the pipe 
command, but I don't have the time or resources to build a custom 
backend that is integrated with PowerDNS.

Any other thoughts?

-Anthony

Barry Bourdage wrote:
>  
> I was getting the same problem on windows pdns/mysql
> 
> 
> I moved to linux and no longer have a problem.
> 
> -----Original Message-----
> From: pdns-users-bounces at mailman.powerdns.com
> [mailto:pdns-users-bounces at mailman.powerdns.com] On Behalf Of Anthony
> Eden
> Sent: Tuesday, November 30, 2004 2:11 PM
> To: pdns-users at mailman.powerdns.com
> Subject: [Pdns-users] PDNS Crashes
> 
> I recently sent the following message to the mailing list, but received
> no responses.  Considering that it has happened again even though I
> upped the TTL to 8 hours, I am posting the message again in hopes that
> someone can help me.
> 
> As previously described I am currently using PowerDNS for the root name
> servers for the .mp domain.  I have to backends, first bind and then
> pipe.  The pipe is to a perl script which is essentially delegating the
> entire domain to other name servers.
> 
> PDNS recently crashed with the following log:
> 
> Nov 25 05:38:06 mp1 pdns[8664]: 5002 questions waiting for database
> attention. Limit is 5000, respawning Nov 25 05:38:06 mp1 free(): invalid
> pointer 0x83e1650!
> Nov 25 05:38:06 mp1 pdns[8664]: Got a signal 11, attempting to print
> trace:
> 
> Any idea what is causing this and what I can do to fix it?  This is the
> second time this has occurred on our primary server in the last week. 
> There was no trace in the log after the "attempting to print trace:"
> line.
> 
> I suppose I could increase the max-queue-length setting but I worry that
> this will just mask the real problem.  Is it possible that the Perl
> backend is just unable to handle the load or is crashing itself?  I have
> the TTL for the resulting delegation record from the perl script at only
> 3600 so perhaps I should up that as well to reduce load?
> 
> Also, I noticed that the pipe backend supports a pipe-timeout
> configuration parameter...what is the default value for this if it isn't
> specified?  Perhaps I need to set that to a specific value?
> 
> Sincerely,
> Anthony Eden
> 
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