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https://issues.apache.org/jira/browse/HDDS-1624?focusedWorklogId=252033&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-252033
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ASF GitHub Bot logged work on HDDS-1624:
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Author: ASF GitHub Bot
Created on: 31/May/19 20:26
Start Date: 31/May/19 20:26
Worklog Time Spent: 10m
Work Description: avijayanhwx commented on pull request #882: HDDS-1624 :
Refactor operations inside the bucket lock in OM key write.
URL: https://github.com/apache/hadoop/pull/882
There are a few steps that are done inside the OM bucket lock that are lock
invariant and can be done outside the lock. This patch refactors those steps.
It also adds an isExist API in the metadata store so that we dont need to
deserialize the byte[] to Object while doing a simple table.get(key) != null
check.
On applying the patch, the OM + SCM (With dummy datanodes) write performance
improves by around 3x.
Thanks to @nandakumar131 who helped with this patch.
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Issue Time Tracking
-------------------
Worklog Id: (was: 252033)
Time Spent: 10m
Remaining Estimate: 0h
> Refactor operations inside the bucket lock in OM key write.
> -----------------------------------------------------------
>
> Key: HDDS-1624
> URL: https://issues.apache.org/jira/browse/HDDS-1624
> Project: Hadoop Distributed Data Store
> Issue Type: Bug
> Components: Ozone Manager
> Reporter: Aravindan Vijayan
> Assignee: Aravindan Vijayan
> Priority: Critical
> Labels: pull-request-available
> Fix For: 0.5.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> There are a few steps that are done inside the OM bucket lock that are lock
> invariant and can be done outside the lock. This patch refactors those steps.
> It also adds an isExist API in the metadata store so that we dont need to
> deserialize the byte[] to Object while doing a simple _table.get(key) !=
> null_ check.
> On applying the patch, the OM + SCM (With dummy datanodes) write performance
> improves by around 3x.
> Thanks to [~nandakumar131] who helped with this patch.
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