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https://issues.apache.org/jira/browse/HDFS-13694?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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zhouyingchao updated HDFS-13694:
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Attachment: HDFS-13694-001.patch
Status: Patch Available (was: Open)
Test the patch against a fsimage of a 70PB 2.4 cluster (200million files and
300million blocks), the image loading time be reduced from 1210 seconds to 1105
seconds.
> Making md5 computing being in parallel with image loading
> ---------------------------------------------------------
>
> Key: HDFS-13694
> URL: https://issues.apache.org/jira/browse/HDFS-13694
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: zhouyingchao
> Priority: Major
> Attachments: HDFS-13694-001.patch
>
>
> During namenode image loading, it firstly compute the md5 and then load the
> image. Actually these two steps can be in parallel.
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