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Hairong Kuang commented on HDFS-1766: ------------------------------------- Todd, you meant the part of code in createDataNode, right? > Datanode is marked dead, but datanode process is alive and verifying blocks > --------------------------------------------------------------------------- > > Key: HDFS-1766 > URL: https://issues.apache.org/jira/browse/HDFS-1766 > Project: Hadoop HDFS > Issue Type: Bug > Components: data-node > Affects Versions: 0.23.0 > Reporter: Hairong Kuang > Assignee: Hairong Kuang > Fix For: 0.23.0 > > Attachments: killDN.patch > > > We have a datanode marked dead in the namenode, and it is not taking any > traffic. But it is verifying blocks continuously, so the DataNode process is > definitely not dead. Jstack shows that the main thread and the offerService > thread are gone but the JVM stuck at waiting for other threads to die. It > seems to me that the offerService thread has died abnormally, for example, by > a runtime exception and it did not shut down other threads before exiting. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira