[GE users] client IP resolved to host name .. not identical to ...

Tim Harsch harsch1 at llnl.gov
Wed Jan 18 18:15:34 GMT 2006


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Got it.  I was concerned that it was the exec host that resolved differently 
on both qmaster and exec.  But it turns out it was the qmaster that was 
resolving differently.  I understand the problem now thank you for your 
help!

----- Original Message ----- 
From: "christian reissmann" <Christian.Reissmann at Sun.COM>
To: <users at gridengine.sunsource.net>
Sent: Friday, January 13, 2006 5:19 AM
Subject: Re: [GE users] client IP resolved to host name .. not identical to 
...


> Hi Tim,
>
> the problem may occur when the ip name resolving is different on qmaster 
> and execd host:
>
> 1) qmaster thinks its (own) host name is "Y" and sends it to the execd at 
> connection time
>
> 2) execd host resolves the ip adress of qmaster host (got from accept() 
> call) to "X"
>
> 3) "X" and "Y" should be the same on each host
>
>
> Does the $SGE_ROOT/utilbin/arch/get* return the same names for qmaster AND
> execd host on both hosts (qmaster and execd)?
>
> Does your /etc/hosts file look good on each host (not only on the qmaster 
> host)?
>
>
> Best regards,
>
> Christian
>
>
> Tim Harsch wrote On 01/12/06 22:41,:
>> 01/12/2006 13:13:32|execd|xber5|E|commlib error: access denied (client IP
>> resolved to host name "X". This is not identical to clients host name 
>> "Y")
>>
>> I'm getting a message simililar to that of above.  My /etc/hosts file 
>> looks
>> good to me.  And I can use SGE_ROOT/utilbin/arch/get* binaries and they 
>> seem
>> to return the correct results.
>>
>> I found some stuff in the archives that suggest this might be a bug in 
>> SGE
>> <6.0u7  ( I'm on 6.0u3 )....
>>
>> Help?
>>
>> Tim Harsch
>> Computer Scientist
>> Lawrence Livermore National Laboratory
>>
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>
> -- 
> Christian Reissmann    Tel: +49 (0)941 3075 112  mailto:crei at sun.com
> Software Engineer      Fax: +49 (0)941 3075 222 
> http://www.sun.com/gridengine
> Sun Microsystems GmbH, Dr.-Leo-Ritter-Str. 7,
> D-93049 Regensburg,    Tel: +49 (0)941 3075 0
>
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