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
