[ https://issues.apache.org/jira/browse/HDFS-4591?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Aaron T. Myers updated HDFS-4591: --------------------------------- Status: Patch Available (was: Open) > HA clients can fail to fail over while Standby NN is performing long > checkpoint > ------------------------------------------------------------------------------- > > Key: HDFS-4591 > URL: https://issues.apache.org/jira/browse/HDFS-4591 > Project: Hadoop HDFS > Issue Type: Bug > Components: ha, namenode > Affects Versions: 2.0.4-alpha > Reporter: Aaron T. Myers > Assignee: Aaron T. Myers > Attachments: HDFS-4591.patch > > > Clients know to fail over to talk to the Active NN when they perform an RPC > to the Standby NN and it throws a StandbyException. However, most places in > the code that check if the NN is in the standby state do so inside the FSNS > fsLock. Since this lock is held for the duration of the saveNamespace during > a checkpoint, StandbyExceptions will not be thrown during this time. -- 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