[ https://issues.apache.org/jira/browse/HDFS-8824?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Zhe Zhang updated HDFS-8824: ---------------------------- Fix Version/s: 2.7.4 Thanks Nicholas for the work. I think this is a good improvement for branch-2.7 and just backported. Verified {{TestBalancer}}. > Do not use small blocks for balancing the cluster > ------------------------------------------------- > > Key: HDFS-8824 > URL: https://issues.apache.org/jira/browse/HDFS-8824 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: balancer & mover > Reporter: Tsz Wo Nicholas Sze > Assignee: Tsz Wo Nicholas Sze > Fix For: 2.8.0, 2.7.4, 3.0.0-alpha1 > > Attachments: h8824_20150727b.patch, h8824_20150811b.patch > > > Balancer gets datanode block lists from NN and then move the blocks in order > to balance the cluster. It should not use the blocks with small size since > moving the small blocks generates a lot of overhead and the small blocks do > not help balancing the cluster much. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org