Oracle Big Data Appliance V2.2/CDH 4.3 No Active NameNode After Disruption of ZooKeeper Service (Doc ID 1588652.1)

Last updated on NOVEMBER 18, 2016

Applies to:

Big Data Appliance Integrated Software - Version 2.2.0 and later
Linux x86-64

Symptoms

If there has been a disruption to the ZooKeeper service, possibly deleting ZooKeeper data under /var/log/zookeeper, Cloudera Manger (CM) may report "Bad Health" for the hdfs and/or mapreduce service. Further investigation in CM shows that both NameNodes are in Standby mode.

Services > All Services > on hdfs line: 2 NameNodes

Both NameNodes in Standby Mode:

Cause

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