On Tue, Jul 26, 2016 at 12:28 PM, Prashanth Pai <ppai@xxxxxxxxxx> wrote: > +1 to option (2) which similar to echoing into /proc/sys/vm/drop_caches > > -Prashanth Pai > > ----- Original Message ----- >> From: "Mohammed Rafi K C" <rkavunga@xxxxxxxxxx> >> To: "gluster-users" <gluster-users@xxxxxxxxxxx>, "Gluster Devel" <gluster-devel@xxxxxxxxxxx> >> Sent: Tuesday, 26 July, 2016 10:44:15 AM >> Subject: [Gluster-devel] Need a way to display and flush gluster cache ? >> >> Hi, >> >> Gluster stack has it's own caching mechanism , mostly on client side. >> But there is no concrete method to see how much memory are consuming by >> gluster for caching and if needed there is no way to flush the cache memory. >> >> So my first question is, Do we require to implement this two features >> for gluster cache? >> >> >> If so I would like to discuss some of our thoughts towards it. >> >> (If you are not interested in implementation discussion, you can skip >> this part :) >> >> 1) Implement a virtual xattr on root, and on doing setxattr, flush all >> the cache, and for getxattr we can print the aggregated cache size. >> >> 2) Currently in gluster native client support .meta virtual directory to >> get meta data information as analogues to proc. we can implement a >> virtual file inside the .meta directory to read the cache size. Also we >> can flush the cache using a special write into the file, (similar to >> echoing into proc file) . This approach may be difficult to implement in >> other clients. +1 for making use of the meta-xlator. We should be making more use of it. >> >> 3) A cli command to display and flush the data with ip and port as an >> argument. GlusterD need to send the op to client from the connected >> client list. But this approach would be difficult to implement for >> libgfapi based clients. For me, it doesn't seems to be a good option. >> >> Your suggestions and comments are most welcome. >> >> Thanks to Talur and Poornima for their suggestions. >> >> Regards >> >> Rafi KC >> >> _______________________________________________ >> Gluster-devel mailing list >> Gluster-devel@xxxxxxxxxxx >> http://www.gluster.org/mailman/listinfo/gluster-devel >> > _______________________________________________ > Gluster-devel mailing list > Gluster-devel@xxxxxxxxxxx > http://www.gluster.org/mailman/listinfo/gluster-devel _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx http://www.gluster.org/mailman/listinfo/gluster-users
