Re: Freezing during heal

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On 19/04/2016 12:47 AM, Krutika Dhananjay wrote:
Oops, just realized 3.7.10 had a regression. Then 3.7.11 it is. :)

Wasn't the 3.7.10 regression only a problem on reboots if you used gluster snapshots? (which proxmox doesn't). I'm currently using 3.7.10, no issues with restarts so far.

So one of the reasons heal may have taken so long (and also consumed resources) is because of a bug in self-heal where it would do heal from both source bricks in 3-way replication. With such a bug, heal would take twice the amount of time and consume resources both the times by the same amount.

This issue is fixed at http://review.gluster.org/#/c/14008/ and will be available in 3.7.12.

Rats, I thought it was in 3.7.11 :( but can't it also be worked round by disabling "cluster.data-self-heal"? or was that something else.


I'm getting pretty good heal performance with the following settings:

- features.shard-block-size: 64MB
- cluster.self-heal-window-size: 1024





--
Lindsay Mathieson

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