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John Clizbe wrote:
> Javier Henderson wrote:
>> I run two keyservers, one has just two peers, the other has about a dozen.
>
>> The one with a dozen peers sees periodic corruption, necessitating a rebuild.
>> From what I've seen after asking the great google mind, this seems to happen
>> periodically, and there was even a posting this morning by someone dropping
>> out
>> of the ring because of this problem.
>
>> Both of the keyservers I run are on 1.1.1, which I believe is latest and
>> greatest.
>
>> Any thoughts on this?
>
Googling the BDB error, and doing a bit of checking, it seems mutexes are indeed
a scarce quantity for the PTree database:
> s...@yogi:/var/sks# db50_stat -eh PTree
<SNIP>
> Active transactions:
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
> 7MB 176KB Mutex region size
> 0 The number of region locks that required waiting (0%)
> 4 Mutex alignment
> 1 Mutex test-and-set spins
> 58720 Mutex total count
> 46 Mutex free count
> 58674 Mutex in-use count
> 58674 Mutex maximum in-use count
> Mutex counts
> 46 Unallocated
> 1 env region
> 1 log filename
> 1 log flush
> 1 log region
> 1 mpoolfile handle
> 42267 mpool buffer
> 17 mpool file bucket
> 16381 mpool hash bucket
> 1 mpool region
> 1 mutex region
> 1 transaction checkpoint
> 1 txn region
I'm adding 'mutex_set_max 65535' to PTree's DB_CONFIG and we'll see if that
takes care of it. I ran db_recover on PTree before restarting.
KDB had ~10% free mutexes, so I didn't see an issue there.
- --
John P. Clizbe Inet: John (a) GingerBear.net
You can't spell fiasco without SCO. hkp://keyserver.gingerbear.net or
mailto:[email protected]?subject=help
Q:"Just how do the residents of Haiku, Hawai'i hold conversations?"
A:"An odd melody / island voices on the winds / surplus of vowels"
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