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Posted to common-dev@hadoop.apache.org by "Xuesen Liang (Jira)" <ji...@apache.org> on 2021/06/09 02:38:00 UTC
[jira] [Created] (HADOOP-17752) Remove lock contention in REGISTRY
of Configuration
Xuesen Liang created HADOOP-17752:
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Summary: 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
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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