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https://issues.apache.org/jira/browse/HDDS-1624?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16856202#comment-16856202
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Hudson commented on HDDS-1624:
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SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #16672 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/16672/])
HDDS-1624 : Refactor operations inside the bucket lock in OM key write.
(bharat: rev 1a78794227167a1d14125d2385409390319529e4)
* (edit)
hadoop-hdds/common/src/main/java/org/apache/hadoop/utils/db/RDBTable.java
* (edit)
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/block/BlockManagerImpl.java
* (edit)
hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/KeyManagerImpl.java
* (edit)
hadoop-hdds/common/src/test/java/org/apache/hadoop/utils/db/TestTypedRDBTableStore.java
* (edit) hadoop-hdds/common/src/main/java/org/apache/hadoop/utils/db/Table.java
* (edit)
hadoop-hdds/common/src/main/java/org/apache/hadoop/utils/db/TypedTable.java
* (edit)
hadoop-hdds/common/src/test/java/org/apache/hadoop/utils/db/TestRDBTableStore.java
* (add) hadoop-hdds/common/src/main/java/org/apache/hadoop/utils/UniqueId.java
> 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: 4h 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 3 - 6x based on number of existing keys in the OM RocksDB.
> Thanks to [~nandakumar131] who helped with this patch.
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