Off Topic: Caching Bind Server Freezing

[Peter Farrow]

I have had this problem persistently on Centos 5.3 boxes running 
MailScanner.

Bind became such a problem on these machines I added several other 
nameservers in resolve.conf.

Bind daemon appears to be running but does not respond to service stop 
command nor does answer any queries.

To stop it I find the process number kill -9 it and then restart with 
the service command, it will then run for a random amount of time from 
hours to weeks and then go again,

I think its a bug.

Pete

On 27/01/2010 19:17, Gottschalk, David wrote:
> Yeah, I was planning on upgrading to a new version of BIND, as I suspect that this might be a bug. I just wanted to see if others had experienced this issue at all.
>
> I'm running RHEL 5. Nothing in the logs to note, I don't think named is short on memory. The servers each have 8GB of ram.
>
> David Gottschalk
> UTS Email team
> david.gottschalk at emory.edu
>
>
> -----Original Message-----
> From: mailscanner-bounces at lists.mailscanner.info [mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf Of Jeff A. Earickson
> Sent: Wednesday, January 27, 2010 2:09 PM
> To: MailScanner discussion
> Subject: Re: Off Topic: Caching Bind Server Freezing
>
> On Wed, 27 Jan 2010, Gottschalk, David wrote:
>
>    
>> Date: Wed, 27 Jan 2010 12:41:55 -0500
>> From: "Gottschalk, David"<dgottsc at emory.edu>
>> Reply-To: MailScanner discussion<mailscanner at lists.mailscanner.info>
>> To: MailScanner discussion<mailscanner at lists.mailscanner.info>
>> Subject: Off Topic: Caching Bind Server Freezing
>>
>> Does anyone here use Bind to cache DNS lookups on their MailScanner boxes?
>>
>> I have a bind caching server running on each of my MailScanner machines, and occasionally named will completely freeze up. I'm not sure why this is occurring. I thought it might have had to do with SpamHaus lookups hanging (they blocked our lookups), so I disabled them in my mailscanner.cf; however, that has not resolved the issue.
>>
>> I'm running version 9.2.4.
>>
>> Any ideas would be greatly appreciated.
>>      
> Upgrade to a newer version of bind?  I'm running DNS caching with bind
> 9.6.1-P3 on Solaris 10, never had any issues.  What OS are you on?
> Any named related syslog msgs of note?  Is named short on memory?
>
> Jeff Earickson
> Colby College
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Peter Farrow
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