Biju Nair created HDFS-6688: ------------------------------- Summary: Hadoop JMX stats are not refreshed Key: HDFS-6688 URL: https://issues.apache.org/jira/browse/HDFS-6688 Project: Hadoop HDFS Issue Type: Bug Environment: Ubuntu Reporter: Biju Nair
Even when the HDFS datanode process is stopped the JMX attribute Hadoop.NameNode.FSNamesystemState.NumLiveDataNodes/NumDeadDataNodes attribute values doesn't change. Also Hadoop.NameNode.NameNodeInfo.Attributes.LiveNodes shows the stopped datanode details. If these attributes reflect the actual changes in the datanode, they can be used to monitor the health of the HDFS cluster which currently can't be used. -- This message was sent by Atlassian JIRA (v6.2#6252)