[jira] [Created] (HDFS-4714) Support logging short messages in Namenode IPC server for configurable list of exception classes.

["Kihwal Lee (JIRA)" <ji...@apache.org>]

Kihwal Lee created HDFS-4714:
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             Summary: Support logging short messages in Namenode IPC server for configurable list of exception classes.
                 Key: HDFS-4714
                 URL: https://issues.apache.org/jira/browse/HDFS-4714
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: namenode
    Affects Versions: 3.0.0, 0.23.7, 2.0.5-beta
            Reporter: Kihwal Lee


Namenode can slow down significantly if a rogue client/job issues massive number of requests that will fail. E.g. permission denied, quota overage, etc.  The major contributing factor in slow down is the long namenode log message, which includes full stack trace.  

Previously similar issues involving safe mode and standby node have been addressed and we can extend it to suppress logging stack traces for configured list of exception classes.

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