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Posted to issues@hbase.apache.org by "Andrew Kyle Purtell (Jira)" <ji...@apache.org> on 2022/07/01 21:34:00 UTC
[jira] [Closed] (HBASE-17012) Handle Offheap cells in CompressedKvEncoder
[ https://issues.apache.org/jira/browse/HBASE-17012?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andrew Kyle Purtell closed HBASE-17012.
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> Handle Offheap cells in CompressedKvEncoder
> -------------------------------------------
>
> Key: HBASE-17012
> URL: https://issues.apache.org/jira/browse/HBASE-17012
> Project: HBase
> Issue Type: Sub-task
> Components: regionserver
> Affects Versions: 2.0.0
> Reporter: Anoop Sam John
> Assignee: ramkrishna.s.vasudevan
> Priority: Major
> Fix For: 2.0.0
>
> Attachments: HBASE-17012_1.patch, HBASE-17012_2.patch, HBASE-17012_3.patch, HBASE-17012_4.patch, HBASE-17012_5.patch, HBASE-17012_6.patch
>
>
> When we deal with off heap cells we will end up copying Cell components on heap
> {code}
> public void write(Cell cell) throws IOException {
> .................
> write(cell.getRowArray(), cell.getRowOffset(), cell.getRowLength(), compression.rowDict);
> write(cell.getFamilyArray(), cell.getFamilyOffset(), cell.getFamilyLength(),
> compression.familyDict);
> write(cell.getQualifierArray(), cell.getQualifierOffset(), cell.getQualifierLength(),
> compression.qualifierDict);
> ......
> out.write(cell.getValueArray(), cell.getValueOffset(), cell.getValueLength());
> ...
> {code}
> We need to avoid this.
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