[OpenAFS] What does this log message mean

Kim Kimball kim.kimball@jpl.nasa.gov
Fri, 27 Jan 2006 09:29:27 -0700


The thing that's interesting is that the messages we've seen are always 
the same pattern:

Sat Jan 21 14:24:56 2006 FindClient: client X(Y) already
had conn 12bbb28 (host 894ea06a), stolen by client X(Y)

This looks like the same client/SID is stealing from itself??

For the 2 hosts almost always identified (host xyz) we're seeing 
intermittent data access failures that we're trying to sort out.

We've seen a couple of hundred of these messages for each of the clients 
over a period of < 1 day.

Any reason for concern?  It looks like one client structure is 
clobbered/reassigned, and I've been assuming that this is so fast that 
the AFS client doesn't notice.

Kim


Derrick J Brashear wrote:
> On Thu, 26 Jan 2006, Bo Tretta wrote:
> 
>> 1.4.0We have recently upgraded our cell to 1.4.0 for Solaris 9. I have 
>> found messages in the FileLog that I do not understand the meaning of. 
>> I have read the archives and seen that the following messages can be 
>> safely ignored if connection is "stolen" by the same system.
> 
> it means there's a race and 2 "client structures" end up existing for a 
> client. it's not good, but unless you see a problem you should be able 
> to ignore it.
> 
> The problem you'd see would be continuous VBUSY to a client.
> 
> 
>> Sat Jan 21 14:24:56 2006 FindClient: client 14605c8(e6f41d0) already 
>> had conn 12bbb28 (host 894ea06a), stolen by client 14605c8(e6f41d0)
>>
>> Sun Jan 22 04:02:14 2006 FindClient: client 10f4e30(e6f4b88) already 
>> had conn 11704b8 (host 894ea06a), stolen by client 10f4ea0(e6f4b88)
>>
>> Howvever, I am getting complaints from these same clients regarding 
>> slow afs access.
>>
>> What is the meaning of these messages?
>>
>> -- 
>> Bo Tretta
>>
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