Viraj Jasani created HDFS-16973:
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Summary: RBF: MountTableResolver cache size lookup should take
read lock
Key: HDFS-16973
URL: https://issues.apache.org/jira/browse/HDFS-16973
Project: Hadoop HDFS
Issue Type: Improvement
Reporter: Viraj Jasani
Assignee: Viraj Jasani
Mount table resolver location cache gets invalidated by taking write lock as
part of addEntry/removeEntry/refreshEntries calls. Since the write lock
exclusively updates the cache, getDestinationForPath already takes read lock
before accessing the cache. Similarly, retrieval of the cache size should also
take the read lock.
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