Viraj Jasani created HDFS-16090:
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Summary: Fine grained locking for datanodeNetworkCounts
Key: HDFS-16090
URL: https://issues.apache.org/jira/browse/HDFS-16090
Project: Hadoop HDFS
Issue Type: Improvement
Reporter: Viraj Jasani
Assignee: Viraj Jasani
While incrementing DataNode network error count, we lock entire LoadingCache in
order to increment network count of specific host. We should provide fine
grained concurrency for this update because locking entire cache is redundant
and could impact performance while incrementing network count for multiple
hosts.
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