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https://issues.apache.org/jira/browse/HDFS-14513?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16849938#comment-16849938
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Íñigo Goiri commented on HDFS-14513:
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Can we use {{org.apache.hadoop.util.ShutdownHookManager}} and lambdas?
> FSImage which is saving should be clean while NameNode shutdown
> ---------------------------------------------------------------
>
> Key: HDFS-14513
> URL: https://issues.apache.org/jira/browse/HDFS-14513
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Reporter: He Xiaoqiao
> Assignee: He Xiaoqiao
> Priority: Major
> Attachments: HDFS-14513.001.patch
>
>
> FSImage checkpoint file which is saving could not be clean while NameNode
> shutdown at the same time.
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