[Pvfs2-developers] EMERGENCY: Need help recovering one of our META/IO servers....

[Phil Carns]

Have you actually tried db_recover yet?  It can fix some things even 
without a transaction log.

I would recommend making a backup of your .db files first.  After you 
have tried Kevin's suggestion, you can go into the directory for the 
collection (where the dataspace_attributes.db and 
collections_attributes.db are) and try running db_recover -v.

Kevin and I found recently that db_recover doesn't necessarily print 
much of anything to stdout even with the -v, just to warn you.

-Phil

Kevin Harms wrote:
> 
>   You could try running db_verify -o <file>.db and see what it says.
> 
> kevin
> 
> On Sep 14, 2009, at 10:34 AM, Becky Ligon wrote:
> 
>> To all:
>>
>> We had a disk crash causing the dataspace database to become corrupted in
>> our production environment.  The log messages indicate that we should run
>> a db_recover, but, as everyone knows, there is not a transactions log 
>> from
>> which to recover.  So, are there any PVFS tools or Berkeley db tools that
>> we should try?
>>
>> Becky
>>
>> -- 
>> Becky Ligon
>> PVFS Developer
>> Clemson University
>> 864-656-3865
>>
>>
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> 
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