justglusterfs@xxxxxxxxx
发送时间： 2014-09-09 16:23收件人： gluster-devel抄送： gluster-users主题： glusterfs replica volume self heal lots of small file very very slow！！why？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 minutes， It's too slow！ why？I find out related options with self-heal， as follow：cluster.self-heal-window-sizecluster.self-heal-readdir-sizecluster.background-self-heal-countthen 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??thanks！
justglusterfs@xxxxxxxxx
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