freebsd 9.0-release + zfs + mysqld(percona) = kernel: swap zone exhausted, increase kern.maxswzone

[Philip M. Gollucci]

On 3/30/12 5:48 PM, Philip M. Gollucci wrote:
> After reading several sparse articles/post, I've come to the conclusion
> that FreeBSD doesn't do well with SWAP>  32GB; however it does allow it.
> As such I decided to drop the swap to 8GB*2=16GB.  Sadly that didn't
> help either after dropping kern.maxswzone back 2*thedefault which is
> apparently very near or the max you can up it and get more actual
> SWAPMETA space b/c of the limiting based on the number of total system
> pages.
>
> I'm still quite perplexed here.  Please also the recent thread on
> -stable where someone has the same problem with ZFS/NFS.
>
> subject: 9-STABLE, ZFS, NFS, ggatec - suspected memory leak

That didn't help either.  We will compare NAMEI next in addition to 
trying to tune the ZFS arch/meta.



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Philip M. Gollucci (pgollucci at p6m7g8.com) c: 703.336.9354
Member,                           Apache Software Foundation
Committer,                        FreeBSD Foundation
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