Harsh J created HDFS-4449: ----------------------------- Summary: When a decommission is awaiting closure of live blocks, show the block IDs on the NameNode's UI report Key: HDFS-4449 URL: https://issues.apache.org/jira/browse/HDFS-4449 Project: Hadoop HDFS Issue Type: Improvement Reporter: Harsh J Assignee: Harsh J
It is rather common for people to be complaining about 'DN decommission' hangs cause of live blocks waiting to get completed by some app (especially certain HBase specifics cause a file to be open for a longer time, as compared with MR/etc.). While they can see a count of the blocks that are live, we should add some more details to that view. Particularly add the list of live blocks waiting to be closed, so that a user may understand better on why its hung and also be able to trace back the block to files manually if needed. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira