[ https://issues.apache.org/jira/browse/HDFS-8549?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andrew Wang updated HDFS-8549: ------------------------------ Attachment: HDFS-8549.001.patch Patch attached. > Abort the balancer if an upgrade is in progress > ----------------------------------------------- > > Key: HDFS-8549 > URL: https://issues.apache.org/jira/browse/HDFS-8549 > Project: Hadoop HDFS > Issue Type: Improvement > Components: balancer & mover > Affects Versions: 2.7.0 > Reporter: Andrew Wang > Assignee: Andrew Wang > Attachments: HDFS-8549.001.patch > > > Running the balancer during an ongoing upgrade has a negative affect, since > DNs do not actually delete blocks. This means the balancer is making lots of > extra replicas and not actually reducing the disk utilization of > over-utilized nodes. -- This message was sent by Atlassian JIRA (v6.3.4#6332)