[Gluster-users] Old story - glusterfs memory usage

[Amon Ott]

On Friday 26 March 2010 wrote Krzysztof Strasburger:
> On Fri, Mar 26, 2010 at 01:16:53PM +0100, Amon Ott wrote:
> > > No, this should happen without any filters. What happens, if you
> > > disable io-cache?
> >
> > Disabled both io-cache and read-ahead. Now it only grew to 739 MB. Again,
> > drop_caches did not reduce that size, although it reduced the fuse_inode
> > slabs significantly. No out of memory now.
>
> 739 MB "only", without caches???
> This is a confirmation that the problem appears on other sites, too.
>
> > Please note that I can live with 1GB of memory for the glusterfs process,
> > if it needs that. It must not block accesses, this is my concern.
>
> No OOM now, but double the number of files and IMHO glusterfs will
> grow up to 1.5 GB.
> Thank you for doing the test.
> Now we should check, whether fuse_forget() is called at all during the
> test. I would not assume blindly that it is.

Added a counter to fuse_forget():
[2010-03-26 15:34:31] N [fuse-bridge.c:3203:fuse_thread_proc] fuse: 
unmounting /home/user after 42732 forgets

> yes -> glusterfs problem

Looks like.

Amon Ott
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