Any desire for updated MogileFS docs?
Robin H. Johnson
robbat2 at gentoo.org
Thu Jul 12 18:56:24 UTC 2007
On Thu, Jul 12, 2007 at 11:43:54AM -0700, Arthur Bebak wrote:
> I'm sure there are others. Some of these I've seen asked on the
> mailing list, many I have not but I assume people running production
> servers have the answers.
I've got one for the list that I ran into because of some old & bad
Q: What workload does MogileFS suck at?
A: Files that change in a random fashion very often.
We were wondering why there seemed to be such high IO usage and slamming
of the database going on, and an inspection showed us a near constant
~300k rows (3% of our total) in the file_to_delete table. Due to a
reversed conditional, something that was supposed to be caching a file
elsewhere was rebuilding it every time instead. (This also turned out to
be the source of a file consistency problem we had seen on the previous
Robin Hugh Johnson
Gentoo Linux Developer & Council Member
E-Mail : robbat2 at gentoo.org
GnuPG FP : 11AC BA4F 4778 E3F6 E4ED F38E B27B 944E 3488 4E85
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Size: 321 bytes
Desc: not available
Url : http://lists.danga.com/pipermail/mogilefs/attachments/20070712/194849f4/attachment.pgp
More information about the mogilefs