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https://issues.apache.org/jira/browse/HDDS-1774?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16884161#comment-16884161
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Eric Yang commented on HDDS-1774:
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Patch 001 is based on HDDS-1772 patch 3. This patch adds a disk hang test for
throttling datanode data disk availability, and run the standard upload and
download tests.
> Add disk hang test to fault injection test
> ------------------------------------------
>
> Key: HDDS-1774
> URL: https://issues.apache.org/jira/browse/HDDS-1774
> Project: Hadoop Distributed Data Store
> Issue Type: Improvement
> Reporter: Eric Yang
> Priority: Major
> Attachments: HDDS-1774.001.patch
>
>
> When disk is corrupted, the disk may show behavior of hang in accessing data.
> One of the simulation that can be performed is to set disk IO throughput to
> 0 bytes/sec to simulate disk hang. Ozone file system client can detect disk
> access timeout, and proceed to read/write data to another datanode.
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