exists() calls logs FileNotFoundException in namenode log
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Key: HADOOP-3239
URL: https://issues.apache.org/jira/browse/HADOOP-3239
Project: Hadoop Core
Issue Type: Bug
Affects Versions: 0.17.0
Reporter: lohit vijayarenu
exists() was modified to invoke getFileStatus() internally. But getFileStatus()
throws FileNotFoundException for files which does not exists and this is logged
in RPC$Server for each exists() call. One way to get rid of these messages is
at the Name Node, catch FileNotFoundException and return null. In this case,
RPC would not log it in namenode log. But at the client end we might have to
check for null on all calls of getFileStatus(). Other option at client end is
to construct FileNotFoundException() when getFileInfo() returns null.
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