[ https://issues.apache.org/jira/browse/AMBARI-20376?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Antonenko Alexander updated AMBARI-20376: ----------------------------------------- Status: Patch Available (was: Open) > While Moving Namenode via Move Master wizard, datanodes reported as down > ------------------------------------------------------------------------ > > Key: AMBARI-20376 > URL: https://issues.apache.org/jira/browse/AMBARI-20376 > Project: Ambari > Issue Type: Bug > Components: ambari-web > Affects Versions: 2.5.0 > Reporter: Antonenko Alexander > Assignee: Antonenko Alexander > Priority: Critical > Fix For: 2.5.0 > > Attachments: AMBARI-20376.patch > > > While Moving Namenode via Move Master wizard, datanodes reported as down > while starting ATS. > Seeing this in a couple of splits today. ATS fails to start showing there are > no live datanodes > {code} > { > "RemoteException": { > "exception": "RetriableException", > "javaClassName": "org.apache.hadoop.ipc.RetriableException", > "message": "org.apache.hadoop.hdfs.server.namenode.SafeModeException: > Cannot set permission for /ats/done. Name node is in safe mode.\nThe reported > blocks 934 has reached the threshold 0.9900 of total blocks 934. The number > of live datanodes 3 has reached the minimum number 0. In safe mode extension. > Safe mode will be turned off automatically in 21 seconds." > } > } > {code} > The step before ATS start, starts datanode explicitly. On retry ATS will > possibly come up. But no retries were needed before -- This message was sent by Atlassian JIRA (v6.3.15#6346)