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Posted to hdfs-dev@hadoop.apache.org by "Wei-Chiu Chuang (JIRA)" <ji...@apache.org> on 2019/05/13 12:53:00 UTC
[jira] [Resolved] (HDFS-14485) Optionally disable
LazyPersistFileScrubber thread
[ https://issues.apache.org/jira/browse/HDFS-14485?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wei-Chiu Chuang resolved HDFS-14485.
------------------------------------
Resolution: Invalid
> Optionally disable LazyPersistFileScrubber thread
> -------------------------------------------------
>
> Key: HDFS-14485
> URL: https://issues.apache.org/jira/browse/HDFS-14485
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Reporter: Wei-Chiu Chuang
> Priority: Major
>
> NameNode automatically starts a LazyPersistFileScrubber thread to remove missing block files from namespace.
> However, for testing/dev purposes, if I simply want to load a NameNode with a fsimage, the thread would still kick off and consume CPU resources. That's quite annoying.
>
> I would like to propose an option to disable this thread if a developer knows exact what he/she is doing.
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