[ https://issues.apache.org/jira/browse/HDFS-15772?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sathish Kumar updated HDFS-15772: --------------------------------- Component/s: configuration > Namenode not failover > ---------------------- > > Key: HDFS-15772 > URL: https://issues.apache.org/jira/browse/HDFS-15772 > Project: Hadoop HDFS > Issue Type: Bug > Components: configuration, hdfs > Affects Versions: 3.1.4 > Environment: HDP 3.1.4 with Ambari 2.7.4 > Reporter: Sathish Kumar > Priority: Major > > When the directory /etc/secruity/keytabs folder removed on HDP 3.1.4 due to > human error, the NN service down and it didn't failover to standby node in HA > configuration. This issue can be reproduced simply by removing the > /etc/security/keytabs folder. It looks the namenode didn't failover due to > ZKFC as HA is controlled by ZKFC and it used its old connection and could not > detect any loss of keytabs which prevented the failover. After restarting the > ZKFC on the active namenode its fails to establish connection as it couldn't > find the keytabs and eventually fails over to standby node which becomes > active nn. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org