[GE users] can't get password entry for user

Jinal Jhaveri jajhaveri at lbl.gov
Thu Mar 2 19:02:43 GMT 2006


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Yes,

Thats what I was going to say . This can definitely cause DOS.

Thanks

--Jinal


Rayson Ho wrote:

>The code doesn't give up immediately, but it keeps on retrying...
>isn't it better if it waits a bit after each retry??
>
>Rayson
>
>
>
>On 3/2/06, Andy Schwierskott <andy.schwierskott at sun.com> wrote:
>  
>
>>As you see from the sge_passwd() code it doesn't give up immediately, so the
>>issue is really in the NFS area.
>>
>>Andy
>>
>>    
>>
>>>Hi Jinal,
>>>
>>>      We have seen these messages occasionally in our environment.
>>>They typically indicate very slow
>>>response from an NIS server, either due to other network traffic, or the
>>>server itself is overloaded for some other reason.
>>>
>>>HTH,
>>>
>>>Mac McCalla
>>>
>>>-----Original Message-----
>>>From: Jinal Jhaveri [mailto:jajhaveri at lbl.gov]
>>>Sent: Thursday, March 02, 2006 11:42 AM
>>>To: users at gridengine.sunsource.net
>>>Subject: [GE users] can't get password entry for user
>>>
>>>Hi All,
>>>
>>>From few days, were are seeing following errors for few jobs.
>>>
>>>can't get password entry for user "kfelkins". Either the user does not
>>>exist or NIS error!
>>>error reason  453:          can't get password entry for user
>>>"kfelkins". Either the user does not exist or NIS error!
>>>error reason  454:          can't get password entry for user
>>>"kfelkins". Either the user does not exist or NIS error!
>>>
>>>and thus leading the node in error state.
>>>
>>>The error doesn't happen for a particular user but randomly for various
>>>users. I didn't get much information from the execd code except that
>>>sge_getpwnam , which in turn calls getpwnam , fails. sge_getpwnam
>>>doesn't specifically tell what error did it receive from getpwnam. I saw
>>>
>>>several emails in the group, but none of those situation apply to us.
>>>The user is definitely configured correctly on that node and this error
>>>happens only randomly.  Also qconf -suserl does show the name of that
>>>user.
>>>
>>>Any help would be sincerely appreciated
>>>
>>>thank you
>>>
>>>
>>>--Jinal
>>>
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>>>      
>>>
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>>    
>>
>
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