On 10/8/2014 1:45 AM, [email protected] wrote:
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)，use XFS as the underlying
filesystem， 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 unmount the volume from the client， then 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*
*
*
**
* then I config :*
*cluster.self-heal-window-size is 1024(max value)*
*cluster.self-heal-readdir-size is 131072(max value)*
**
* and then do the same test case, find this times heal the
dir use 35 minutes, **The effective is not obvious, *
*
*
*
*
* I want to ask, If there are better ways to improve replica volume
self heal lots of small file performance??*
If you need it healed that quickly, mount the volume on a client and
walk the tree with "find -exec stat {} \; > /dev/null"
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