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https://issues.apache.org/jira/browse/HDDS-8254?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17705445#comment-17705445
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Ritesh Shukla commented on HDDS-8254:
-------------------------------------

[~sadanand_shenoy] this is marked as a blocker for 1.4, let me know if you want 
to block 1.4 release for this.

> Set a default for hdds.datanode.dir.du.reserved.percent
> -------------------------------------------------------
>
>                 Key: HDDS-8254
>                 URL: https://issues.apache.org/jira/browse/HDDS-8254
>             Project: Apache Ozone
>          Issue Type: Bug
>            Reporter: Sadanand Shenoy
>            Assignee: Sadanand Shenoy
>            Priority: Blocker
>
> Operations like block deletion etc require opening rocksdb instances and 
> opening these instances need some space on disk (for ops like rocksdb WAL 
> write) . When disks get full without a set reserved space, these operations 
> will be blocked leading to more issues.
> It is better to set a default reserved percentage to solve this.



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