FileSystem.get() does RPC retries within a static synchronized block
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Key: HADOOP-6640
URL: https://issues.apache.org/jira/browse/HADOOP-6640
Project: Hadoop Common
Issue Type: Bug
Environment: all
Reporter: Alejandro Abdelnur
Priority: Critical
If using FileSystem.get() in a multithreaded environment, and one get() locks
because the NN URI is too slow or not responding and retries are in progress,
all other get() (for the diffferent users, NN) are blocked.
the synchronized block in in the static instance of Cache inner class.
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