Kai Zheng created HDFS-5152:
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Summary: Avoiding redundant Kerberos login for Zookeeper client in
ActiveStandbyElector
Key: HDFS-5152
URL: https://issues.apache.org/jira/browse/HDFS-5152
Project: Hadoop HDFS
Issue Type: Improvement
Components: security
Reporter: Kai Zheng
Based on the fix in HADOOP-8315, it's possible to deploy a secured HA cluster
with SASL support for connection with Zookeeper. However it requires extra
configuration for JAAS to initialize the Zookeeper client because the client
will do another login in it even when ZKFC service actually has already passed
the Kerberos login during its starting.
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