There is lot of scope for improvement in performance and simplicity. Booster translator will help only when you LD_PRELOAD glusterfs-booster.so before launching your applications. It bypasses kernel-fuse for reads and writes. Even in that case, it makes sense to load booster translator on the server side. In your setup, you have 2 servers acting as complete mirror for each other (server and client for each other). You can merge client and server into one process by loading protocol/server into the client space. It will be a lot simpler and faster. Just 2 vol spec files. In upcoming 1.4, you will also be able to use the web embeddable glusterfs client to directly access the storage from apache addresses space (or even run the whole file system inside apache or lighttpd). It also has binary protocol (fast and efficient) and non-blocking I/O functionalities. Please see the attached PDF. It will give you a good idea. -- Anand Babu Periasamy GPG Key ID: 0x62E15A31 Blog [http://ab.freeshell.org] The GNU Operating System [http://www.gnu.org] Z RESEARCH Inc [http://www.zresearch.com] Daniel Jordan Bambach wrote: > Hiya all.. > > A scenario that seems to be a very neat solution to a basic high availability Webserver set up (Apache, Mysql, Python+Django) is to set up two machines, configure master<->master replication between the two MySQL databases, and then set up GlusterFS to mirror a filesystem between the machine that carries the Apache config, Django > applications, and file upload folders between the machines. You can pull the plug on either, and things should keep running on the other. > > With this in mind, I have set up an arrangement whereby each box runs GlusterFSD, and has a client running on them that connects the local server. AFR is set up at the server level, so that perhaps when/if the other machine goes down, the client happily carries on dealing with read/ write requests while the server deals with the non-existence of the other server. > > I've set this up in a test environment, and all is working peachy, and we are thinking of moving to deploy this to a new production > environment. > > With this in mind, I wanted to poll the collective knowledge of this list to see if there are any gotchas to this set up I might have missed, or any obvious performance features I should be using that I am not. > > Any help or advise would be greatly appreciated!! > > Here are the current server and client configs for the two machines: > > #common client config > volume initial > type protocol/client > option transport-type tcp/client > option remote-host localhost > option remote-subvolume data > end-volume > > volume readahead > type performance/read-ahead > option page-size 128kB # 256KB is the default option > option page-count 4 # 2 is default option > option force-atime-update off # default is off > subvolumes initial > end-volume > > volume data > type performance/booster > subvolumes readahead > end-volume > > #latsrv1 - server config for box 1 > volume posix > type storage/posix # POSIX FS translator > option directory /home/export # Export this directory > end-volume > > volume brick-latsrv1 > type features/posix-locks > subvolumes posix > end-volume > > volume brick-latsrv2 > type protocol/client > option transport-type tcp/client > option remote-host latsrv2 > option remote-subvolume brick-latsrv2 > end-volume > > volume brick-afr > type cluster/afr > subvolumes brick-latsrv1 brick-latsrv2 > option read-subvolume brick-latsrv1 > end-volume > > volume data > type performance/io-threads > option thread-count 8 > option cache-size 64MB > subvolumes brick-afr > end-volume > > volume server > type protocol/server > option transport-type tcp/server # For TCP/IP transport > option auth.ip.data.allow * # Allow access to "brick" volume > option auth.ip.brick-latsrv1.allow * > subvolumes data brick-latsrv1 > end-volume > > #latsrv2 - server config for box 2 > volume posix > type storage/posix # POSIX FS translator > option directory /home/export # Export this directory > end-volume > > volume brick-latsrv2 > type features/posix-locks > subvolumes posix > end-volume > > volume brick-latsrv1 > type protocol/client > option transport-type tcp/client > option remote-host latsrv1 > option remote-subvolume brick-latsrv1 > end-volume > > volume brick-afr > type cluster/afr > subvolumes brick-latsrv1 brick-latsrv2 > option read-subvolume brick-latsrv2 > end-volume > > volume data > type performance/io-threads > option thread-count 8 > option cache-size 64MB > subvolumes brick-afr > end-volume > > volume server > type protocol/server > option transport-type tcp/server # For TCP/IP transport > option auth.ip.data.allow * # Allow access to "brick" volume > option auth.ip.brick-latsrv2.allow * > subvolumes data brick-latsrv2 > end-volume > > > _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://zresearch.com/cgi-bin/mailman/listinfo/gluster-users > -------------- next part -------------- A non-text attachment was scrubbed... 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