On Mon, Mar 29, 2010 at 12:35:32PM +0530, Shehjar Tikoo wrote: > Krzysztof Strasburger wrote: > >On Mon, Mar 29, 2010 at 11:48:44AM +0530, Shehjar Tikoo wrote: > >>This is a known problem. See a previous email on the devel list about it > >>at: > >>http://article.gmane.org/gmane.comp.file-systems.gluster.devel/1469 > >> > >>A bug is filed is at: > >>http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=545 > >> > >>For more info on the drop_caches mentioned in that gluster-devel thread, > >>see: > >>http://www.linuxinsight.com/proc_sys_vm_drop_caches.html > >> > >>Do let us know if dropping caches as shown in that thread helps. > >Dear Shehjar, > >thank you, but drop_caches really is not the Holy Grail of this problem. > >It simply does not change anything, to set it to something != 0. > >Amon Ott figured it out, that forget() is called, but memory is not freed > >anyway. > > Of course, just doing drop_caches is not the silver bullet here. In some > cases, it needs to be preceded by a sync. What is your experience with that? > > In any case, if Ott is right, then we might have a memory leak. The best > step is to file a bug. Shehjar - I have sent the response to your private mail; sorry for that. Syncing is IMHO irrelevant here, as there are no dirty buffers to be written out to fs. The files are only opened, stated and closed. I filed related bug report in ancient days, when the bug database was hosted on savannah. If I remember correctly, it has been closed in the meantime. Should I file a new report, or find the old one and reopen it (if it is closed)? Krzysztof
