[Gluster-users] Write performance in a replicated/distributed setup with KVM?

[Harald Hannelius]

On Fri, 2 Mar 2012, Samuli Heinonen wrote:

> 2.3.2012 15:33, Harald Hannelius kirjoitti:
>> The pattern for me starts to look like this;
>> 
>> max-write-speed ~= <link speed>/nodes.
>
> Have you tried tuning performance.io-thread-count setting? More information 
> about that can be found at 
> http://docs.redhat.com/docs/en-US/Red_Hat_Storage_Software_Appliance/3.2/html/User_Guide/chap-User_Guide-Managing_Volumes.html

Yes, as in a previous post;

# gluster volume info

Volume Name: virtuals
Type: Distributed-Replicate
Status: Started
Number of Bricks: 2 x 2 = 4
Transport-type: tcp
Bricks:
Brick1: adraste:/data/brick
Brick2: alcippe:/data/brick
Brick3: aethra:/data/brick
Brick4: helen:/data/brick
Options Reconfigured:
cluster.data-self-heal-algorithm: diff
cluster.self-heal-window-size: 1
performance.io-thread-count: 64
performance.cache-size: 536870912
performance.write-behind-window-size: 16777216
performance.flush-behind: on


-- 

Harald Hannelius | harald.hannelius/a\arcada.fi | +358 50 594 1020