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https://issues.apache.org/jira/browse/HADOOP-17752?focusedWorklogId=609043&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-609043
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ASF GitHub Bot logged work on HADOOP-17752:
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Author: ASF GitHub Bot
Created on: 09/Jun/21 09:19
Start Date: 09/Jun/21 09:19
Worklog Time Spent: 10m
Work Description: steveloughran commented on pull request #3085:
URL: https://github.com/apache/hadoop/pull/3085#issuecomment-857532933
I was worried about a simple move to ConcurrentHashMap keeping references
around, but this looks like it's addressing this. It is however, going to need
review by people who can follow this problem better. I'll ask on common-dev
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Issue Time Tracking
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Worklog Id: (was: 609043)
Time Spent: 0.5h (was: 20m)
> Remove lock contention in REGISTRY of Configuration
> ---------------------------------------------------
>
> Key: HADOOP-17752
> URL: https://issues.apache.org/jira/browse/HADOOP-17752
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: common
> Reporter: Xuesen Liang
> Priority: Major
> Labels: pull-request-available
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> Every Configuration instance is put into *Configuration#REGISTRY* by its
> constructor. This operation is guard by Configuration.class.
> REGISTRY is a *WeakHashMap*, which should be replaced by *ConcurrentHashMap*.
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