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| -rw-r--r-- | Feature Planning/GlusterFS 3.7/arbiter.md (renamed from Feature Planning/GlusterFS 3.7/Outcast.md) | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/Feature Planning/GlusterFS 3.7/Outcast.md b/Feature Planning/GlusterFS 3.7/arbiter.md index 9314ca2..797f005 100644 --- a/Feature Planning/GlusterFS 3.7/Outcast.md +++ b/Feature Planning/GlusterFS 3.7/arbiter.md @@ -1,12 +1,12 @@ Feature ------- -This feature provides a way of preventing split-brains in time. +This feature provides a way of preventing split-brains in replica 3 gluster volumes both in time and space. Summary ------- -Please see <http://review.gluster.org/#/c/9656/> +Please see <http://review.gluster.org/#/c/9656/> for the design discussions Owners ------ @@ -24,11 +24,16 @@ Code patches: <http://review.gluster.org/#/c/10257/> and Detailed Description -------------------- +Arbiter volumes are replica 3 volumes where the 3rd brick of the replica is +automatically configured as an arbiter node. What this means is that the 3rd +brick will store only the file name and metadata, but does not contain any data. +This configuration is helpful in avoiding split-brains while providing the same +level of consistency as a normal replica 3 volume. Benefit to GlusterFS -------------------- -It prevents split-brains in time. +It prevents split-brains in replica 3 volumes and consumes lesser space than a normal replica 3 volume. Scope ----- @@ -72,7 +77,7 @@ User Experience Similar to a normal replica 3 volume. The only change is the syntax in volume creation. See -<https://github.com/gluster/glusterfs/blob/master/doc/features/afr-arbiter-volumes.md> +<https://github.com/gluster/glusterfs-specs/blob/master/Features/afr-arbiter-volumes.md> Dependencies ------------ @@ -91,5 +96,5 @@ Feature completed. See 'Current status' section for the patches. Comments and Discussion ----------------------- - +Some optimizations are under way. --- |