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https://issues.apache.org/jira/browse/HDDS-14166?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Swaminathan Balachandran resolved HDDS-14166.
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Fix Version/s: 2.2.0
Resolution: Resolved
> Completely get rid of byte array operations from RDBBatchOperation
> ------------------------------------------------------------------
>
> Key: HDDS-14166
> URL: https://issues.apache.org/jira/browse/HDDS-14166
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Swaminathan Balachandran
> Assignee: Swaminathan Balachandran
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.2.0
>
> Attachments: 9552_review.patch, 9552_review2.patch
>
>
> Completely get rid of byte array operations for PUT and DELETE from
> RDBBatchOperation. A direct byte buffer copy can be still performed even if a
> byte array is sent from the table interface. Since the underlying rocksdb
> interface is going to perform the same buffer copy on the JNI side i.e.
> copying heap to off heap memory. Thus it would be more optimal to just copy
> it to direct byte buffer and get rid of the byte array for gc. This
> directByteBuffer can be now used for ByteWise comparisons which would be much
> faster on the native side done in HDDS-14238
> P.S. this cannot be done for delete range yet as there is no direct byte
> buffer api in rocksdb yet. This tries to address the issue
> [https://github.com/facebook/rocksdb/pull/14197]
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