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https://issues.apache.org/jira/browse/HDFS-16147?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17389888#comment-17389888
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liuyongpan commented on HDFS-16147:
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[~sodonnell]
I tested it in my test environment，and checked your question.
1、OIV can read the image, but can not read the image in parallel, I will do it
later.
2、Current logic can read both the old Fsimage and the new Fsimage, I have
tested.
3、It can load 300M Fsimage with compression and parallelization , which can
improve 50% loading time.
> load fsimage with parallelization and compression
> -------------------------------------------------
>
> Key: HDFS-16147
> URL: https://issues.apache.org/jira/browse/HDFS-16147
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namanode
> Affects Versions: 3.3.0
> Reporter: liuyongpan
> Priority: Minor
> Attachments: HDFS-16147.001.patch
>
>
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