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https://issues.apache.org/jira/browse/HDFS-12537?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16187480#comment-16187480
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Lokesh Jain commented on HDFS-12537:
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[~nandakumar131] [~anu] Thanks for reviewing the patch. Currently the default
behavior adds a random UUID in each key value. I think the optimizedWrites
option can be removed. If it would be removed there would be two writes made to
the outputStream, the option does it in a single write. But it is not much of
an overhead. So it can be removed.
> Ozone: Reduce key creation overhead in Corona
> ---------------------------------------------
>
> Key: HDFS-12537
> URL: https://issues.apache.org/jira/browse/HDFS-12537
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Lokesh Jain
> Assignee: Lokesh Jain
> Attachments: HDFS-12537-HDFS-7240.001.patch,
> HDFS-12537-HDFS-7240.002.patch
>
>
> Currently Corona creates random key values for each key. This creates a lot
> of overhead. An option should be provided to use a single key value.
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