[Gluster-users] Tuning for Home Directories

[Joel Young]

I've got a HPC type set up with four nodes and a
distributed-replicated configuration.  Performing developer type
actions is disfunctionally slow on the volume.  Below is the
configuration:

Volume Name: home
Type: Distributed-Replicate
Volume ID: 83fa39a6-6e68-4e1c-8fae-3c3e30b1bd66
Status: Started
Number of Bricks: 2 x 2 = 4
Transport-type: tcp
Bricks:
Brick1: ir0:/lhome/gluster_home
Brick2: ir1:/lhome/gluster_home
Brick3: ir2:/lhome/gluster_home
Brick4: ir3:/raid/gluster_home
Options Reconfigured:
server.statedump-path: /tmp
performance.cache-size: 512MB
performance.client-io-threads: on

For example, configure runs take tens of minutes instead of fractions
of minutes.

I've tried setting lookup-unhashed to off or no without a significant
performance change.

Does anyone have any performance tunings or suggestions for making
gluster based home directories usable for developers?

Also, the documentation is unclear as to if lookup-unhashed should be
set to yes or on, vs no or off.  Some things indicate one way, some
the other.  boolean options should no allow multiple values to be set.

Thanks!

Joel