Hi Philip, I do have about the same problem that you describe. There is my setup: Gluster: Two bricks running gluster 3.2.6 Clients: 4 clients running native gluster fuse client. 2 clients running nfs client My nfs client are not doing that much traffic but i was able to view after a couple days that the brick used to mount the nfs is having memory issue. i can provide more info as needed to help correct the problem. Thank's Xavier Le 2012-06-12 ? 08:18, Philip Poten a ?crit : > 2012/6/12 Dan Bretherton <d.a.bretherton at reading.ac.uk>: >> I wonder if this memory leak is the cause of the NFS performance degradation >> I reported in April. > > That's probable, since the performance does go down for us too when > the glusterfs process reaches a large percentage of RAM. My initial > guess was that it's the file system cache that's being eradicated, > thus iowait increases. But a closer look at our munin graphs implies, > that it's also the user space that eats more and more CPU > proportionally with RAM: > > http://imgur.com/a/8YfhQ > > There are two restarts of the whole gluster process family visible on > those graphs: one a week ago at the very beginning (white in the > memory graph, as munin couldn't fork all it needed), and one > yesterday. The drop between 8 and 9 was due to a problemv unrelated to > gluster. > > Pranith: I just made one dump, tomorrow I'll make one more and mail > them both to you so that you can compare them. While I just restarted > yesterday, the leak should be visible, as the process grows a few > hundred MB every day. > > thanks for the fast reply, > Philip > _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://gluster.org/cgi-bin/mailman/listinfo/gluster-users -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://gluster.org/pipermail/gluster-users/attachments/20120612/2d2678c9/attachment-0001.htm> -------------- next part -------------- A non-text attachment was scrubbed... Name: Capture d??cran 2012-06-12 ? 08.59.17.png Type: image/png Size: 36146 bytes Desc: not available URL: <http://gluster.org/pipermail/gluster-users/attachments/20120612/2d2678c9/attachment-0001.png>
