Re: bind-dlz hanging

Felipe Neuwald <[email protected]>
Newsgroups gmane.network.dns.bind9.dlz
Message-ID <[email protected]>
Graeme Fowler escreveu:
> Hi
>
> On Wed, 2008-01-23 at 22:24 -0200, Felipe Neuwald wrote:
>   
>>> 1. Does bind simply stop responding?
>>>   
>>>       
>> Yes. The process still run, but bind doesn't resolve hostnames.
>>     
>
> OK, cool, that's useful.
>
>   
>>> 2. If you configure it to log everything, does that stop too?
>>>   
>>>       
>> I didn't tryed yet. I only got a lot of "named[27591]: mysql driver
>> unable to return result set for findzone query" on logfile.
>>     
>
> That's also useful. Are you, by any chance, running several bind
> threads? The MySQL driver, from memory, will only work in single-thread
> mode.
>
>   
>>> 3. Does MySQL respond when bind stops?
>>>   
>>>       
>> Yes.
>>     
>
> OK, that's also useful.
>
>   
>>> 4. Can you see queries from bind to MySQL when it all hangs?
>>>   
>>>       
>> Yes, take a look:
>>     
>
> That's not a query; that's a sleeping client thread. You may need to
> look up on http://dev.mysql.com/ how to turn on the "General Query Log",
> if you don't already know how. That way you can trap *every* query MySQL
> receives. Something tells me you'll see none when bind fails to respond.
>
>   
>> I've installed /usr/ports/dns/bind9-dlz, but there is bind94 on ports tree. Should I install bind94? The same named.conf will work ok?
>>     
>
> It *should* but you'll have to answer that one yourself.
>   
Ok, I'll try to install bind94.
> Going back to the threads comment: ensure bind is started with the
> option "-n 1" as per the DLZ docs:
>   
Ok, now bind isn't running with "-n 1" option. I'll try it now.
> http://bind-dlz.sourceforge.net/mysql_driver.html
>
> Graeme
>   
Thanks, Felipe.
>
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>   


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