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Posted to issues@ozone.apache.org by "Shashikant Banerjee (Jira)" <ji...@apache.org> on 2021/05/12 10:13:00 UTC
[jira] [Resolved] (HDDS-5089) On-demand disk checker for hdds
volume
[ https://issues.apache.org/jira/browse/HDDS-5089?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Shashikant Banerjee resolved HDDS-5089.
---------------------------------------
Fix Version/s: 1.2.0
Resolution: Fixed
> On-demand disk checker for hdds volume
> --------------------------------------
>
> Key: HDDS-5089
> URL: https://issues.apache.org/jira/browse/HDDS-5089
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Mark Gui
> Assignee: Mark Gui
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.2.0
>
>
> Currently the MutableVolumeSet has a periodic disk checker which runs every 15mins(fixed, not configurable), so it will be about serveral mins before datanode get the chance to detect bad disks.
> As I found, datanode does not handle failure on the write path, we may have to introduce on-demand disk checks when io failure is hit(due to bad disks, etc).
> By the way, hdfs has only a lazy on-demand disk checker:
> [https://blog.cloudera.com/hdfs-datanode-scanners-and-disk-checker-explained/]
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