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Posted to hdfs-issues@hadoop.apache.org by "Yang Yun (Jira)" <ji...@apache.org> on 2020/04/04 14:32:00 UTC
[jira] [Updated] (HDFS-15207) VolumeScanner skip to scan blocks
accessed during recent scan peroid
[ https://issues.apache.org/jira/browse/HDFS-15207?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yang Yun updated HDFS-15207:
----------------------------
Status: Open (was: Patch Available)
> VolumeScanner skip to scan blocks accessed during recent scan peroid
> --------------------------------------------------------------------
>
> Key: HDFS-15207
> URL: https://issues.apache.org/jira/browse/HDFS-15207
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Reporter: Yang Yun
> Assignee: Yang Yun
> Priority: Minor
> Attachments: HDFS-15207.002.patch, HDFS-15207.003.patch, HDFS-15207.004.patch, HDFS-15207.patch, HDFS-15207.patch
>
>
> Check the access time of block file to avoid scanning recently changed blocks, reducing disk IO.
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