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Posted to hdfs-issues@hadoop.apache.org by "Junping Du (JIRA)" <ji...@apache.org> on 2017/08/31 22:18:00 UTC
[jira] [Updated] (HDFS-12102) VolumeScanner throttle dropped (fast
scan enabled) when there is a corrupt block
[ https://issues.apache.org/jira/browse/HDFS-12102?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Junping Du updated HDFS-12102:
------------------------------
Fix Version/s: (was: 2.8.2)
> VolumeScanner throttle dropped (fast scan enabled) when there is a corrupt block
> --------------------------------------------------------------------------------
>
> Key: HDFS-12102
> URL: https://issues.apache.org/jira/browse/HDFS-12102
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: datanode, hdfs
> Affects Versions: 2.8.2
> Reporter: Ashwin Ramesh
> Assignee: Ashwin Ramesh
> Priority: Minor
> Attachments: HDFS-12102-001.patch, HDFS-12102-002.patch, HDFS-12102-003.patch
>
>
> When the Volume scanner sees a corrupt block, it restarts the scan and scans the blocks at much faster rate with a negligible scan period. This is so that it doesn't take 3 weeks to report blocks since a corrupt block means increased likelihood that there are more corrupt blocks.
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