[Gluster-devel] [Gluster-users] glusterfs replica volume self heal dir very slow!!why?
Roman
romeo.r at gmail.com
Fri Sep 5 11:23:57 UTC 2014
Hi,
consider looking at this topic
http://supercolony.gluster.org/pipermail/gluster-users/2014-September/018577.html
. This guy made lots of test. It seems like 50 MB/s (or around 400 Mbps) is
the theoretical maximal limit for replica 1. I am waiting for comments to
this too.
2014-09-05 11:15 GMT+03:00 justglusterfs at gmail.com <justglusterfs at gmail.com>
:
> Hi all:
> I do the following test:
> I create a glusterfs replica volume (replica count is 2 ) with two
> server node(server A and server B), then mount the volume in client node,
> then, I shut down the network of server A node, in client node, I
> copy a dir(which has a lot of small files), the dir size is *2.9GByte,*
> when copy finish, I start the network of server A node, now,
> glusterfs self-heal-daemon start heal dir from server B to server A,
> in the end, I find the self-heal-daemon heal the dir *use 40 m**inutes,
> * *It's too slow! why?*
>
> I find out related options with self-heal, as follow:
> * cluster.self-heal-window-size*
> * cluster.self-heal-readdir-size*
> * cluster.background-self-heal-count*
>
> I want to ask, modify the above options can improve the
> performance of heal dir? if possible, please give a reasonable value
> about above options。
>
> thanks!
> ------------------------------
> justglusterfs at gmail.com
>
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>
--
Best regards,
Roman.
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