Wei-Chiu Chuang created HADOOP-17875:
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Summary: [KMS] FileNotFoundException due to inability to access
zookeeper znode
Key: HADOOP-17875
URL: https://issues.apache.org/jira/browse/HADOOP-17875
Project: Hadoop Common
Issue Type: Bug
Components: kms
Reporter: Wei-Chiu Chuang
A mysterious FileNotFoundException was thrown by KMS client. The KMS server did
not log anything related to it. After extensive investigation it was realized
it could be caused by either of the two Zookeeper errors:
(1) unable to access the znode /zkdtsm due to Zookeeper ACL or other problems.
(2) if there's a runtime dependency mismatch. In in case, our RangerKMS (where
the HadoopKMS runtime is embedded), threw a NoSuchMethodError during curator
initialization (the RangerKMS used an incompatible curator-recipes version at
runtime). Curator was not initialized successfully and therefore unable to
access the znode.
In any case, it would be great to surface up the zookeeper issue to make
troubleshooting easier.
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