That was to clear page-cache on the client side, usually some of the issues related to cache-coherency with stat-prefetch, quick-read and io-cache get resolved temporarily. In general this is not a good practice since the application has to invalidate it caches proactively and keep track of them as necessary. James, i need to know the reason behind doing it. Was it just a hunch or is there any specific errors you are seeing after the upgrade? On Wed, Jun 22, 2011 at 12:05 PM, Burnash, James <jburnash at knight.com>wrote: > I?ll add it J**** > > ** ** > > James Burnash**** > > Unix Engineer**** > > Knight Capital Group**** > > ** ** > > *From:* John Mark Walker [mailto:jwalker at gluster.com] > *Sent:* Wednesday, June 22, 2011 3:04 PM > *To:* Harshavardhana; Burnash, James > > *Cc:* gluster-users at gluster.org > *Subject:* RE: GlusterFS 3.1.5 now available**** > > ** ** > > This looks like the type of Q &A which should go on > http://community.gluster.org/ > > :) > > I'll add it if nobody else does. > > -JM**** > ------------------------------ > > *From:* gluster-users-bounces at gluster.org [ > gluster-users-bounces at gluster.org] on behalf of Harshavardhana [ > harsha at gluster.com] > *Sent:* Wednesday, June 22, 2011 11:56 AM > *To:* Burnash, James > *Cc:* gluster-users at gluster.org > *Subject:* Re: GlusterFS 3.1.5 now available**** > > ** ** > > On Wed, Jun 22, 2011 at 11:53 AM, Burnash, James <jburnash at knight.com> > wrote:**** > > Does anyone know how we can get the native GlusterFS clients to clear their > cached data short of restarting them (or dismounting and remounting their > gluster storage? > > Clients are running 3.1.3, servers are now running 3.1.5.**** > > **** > > Client side 'caches' are in page cache to invalidate those all you have to > do is **** > > ** ** > > echo '3' > /proc/sys/vm/drop_caches **** > > ** ** > > Regards **** > > -- **** > > *Harsha* > > *Gluster Inc* > > ** ** > > > DISCLAIMER: > This e-mail, and any attachments thereto, is intended only for use by the > addressee(s)named herein and > may contain legally privileged and/or confidential information. If you are > not the intended recipient of this > e-mail, you are hereby notified that any dissemination, distribution or > copying of this e-mail and any attachments > thereto, is strictly prohibited. If you have received this in error, please > immediately notify me and permanently > delete the original and any printout thereof. E-mail transmission cannot > be guaranteed to be secure or error-free. > > The sender therefore does not accept liability for any errors or omissions > in the contents of this message which > arise as a result of e-mail transmission. > NOTICE REGARDING PRIVACY AND CONFIDENTIALITY > Knight Capital Group may, at its discretion, monitor and review the content > of all e-mail communications. > > http://www.knight.com > > -- * Harsha Gluster Inc * -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://gluster.org/pipermail/gluster-users/attachments/20110622/e0f7e6d5/attachment-0001.htm>
