[ https://issues.apache.org/jira/browse/HDFS-8204?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Walter Su updated HDFS-8204: ---------------------------- Description: Balancer moves blocks between Datanode(Ver. <2.6 ). Balancer moves blocks between StorageGroups ( introduced by HDFS-6584) , in the new version(Ver. >=2.6) . function {code} class DBlock extends Locations<StorageGroup> DBlock.isLocatedOn(StorageGroup loc) {code} is flawed, may causes > Balancer: 2 replicas ends in same node after running balance. > ------------------------------------------------------------- > > Key: HDFS-8204 > URL: https://issues.apache.org/jira/browse/HDFS-8204 > Project: Hadoop HDFS > Issue Type: Bug > Components: balancer & mover > Reporter: Walter Su > Assignee: Walter Su > Attachments: HDFS-8204.001.patch > > > Balancer moves blocks between Datanode(Ver. <2.6 ). > Balancer moves blocks between StorageGroups ( introduced by HDFS-6584) , in > the new version(Ver. >=2.6) . > function > {code} > class DBlock extends Locations<StorageGroup> > DBlock.isLocatedOn(StorageGroup loc) > {code} > is flawed, may causes -- This message was sent by Atlassian JIRA (v6.3.4#6332)