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https://issues.apache.org/jira/browse/HADOOP-17752?focusedWorklogId=608913&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-608913
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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 04:11
Start Date: 09/Jun/21 04:11
Worklog Time Spent: 10m
Work Description: liangxs opened a new pull request #3085:
URL: https://github.com/apache/hadoop/pull/3085
JIRA: [HADOOP-17752](https://issues.apache.org/jira/browse/HADOOP-17752)
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Issue Time Tracking
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Worklog Id: (was: 608913)
Remaining Estimate: 0h
Time Spent: 10m
> Remove lock contention in REGISTRY of Configuration
> ---------------------------------------------------
>
> Key: HADOOP-17752
> URL: https://issues.apache.org/jira/browse/HADOOP-17752
> Project: Hadoop Common
> Issue Type: Improvement
> Components: common
> Reporter: Xuesen Liang
> Priority: Major
> Time Spent: 10m
> 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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