Large dirs [Was: Re: Clustering and replication]

[Janne Peltonen]

On Tue, Jan 30, 2007 at 02:27:24PM -0800, Tom Samplonius wrote:
>   It could be filesystem and kernel related.  ext2/3 has historically
>   not been good at this, but is better now.  ufs is actually pretty
>   good, but mainly because BSD kernels cache so much vnode data, it
>   does not matter if the directory is hashed on disk or not.  
> 
>   And you always want "noatime" enabled on your Cyrus spool, no matter
>   the filesystem or OS, or version of Cyrus.

I've got a Solaris 8 ufs with noatime. And this was a one-time one-user
problem during extremely high server load. So probably not worth
investigating much more closely.

Thanks.


--Janne