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Posted to hdfs-issues@hadoop.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2021/06/26 17:08:00 UTC
[jira] [Updated] (HDFS-16090) Fine grained locking for
datanodeNetworkCounts
[ https://issues.apache.org/jira/browse/HDFS-16090?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ASF GitHub Bot updated HDFS-16090:
----------------------------------
Labels: pull-request-available (was: )
> 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
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> 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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