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https://issues.apache.org/jira/browse/HBASE-12296?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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stack updated HBASE-12296:
--------------------------
Release Note:
Change to support offheaping.
Incompatible change for filters ColumnPrefixFilter
Changes parameters to filterColumn so takes a Cell rather than a byte [].
hbase-client-1.2.7-SNAPSHOT.jar, ColumnPrefixFilter.class
package org.apache.hadoop.hbase.filter
ColumnPrefixFilter.filterColumn ( byte[ ] buffer, int qualifierOffset, int
qualifierLength ) : Filter.ReturnCode
org/apache/hadoop/hbase/filter/ColumnPrefixFilter.filterColumn:([BII)Lorg/apache/hadoop/hbase/filter/Filter$ReturnCode;
Ditto for filterColumnValue in SingleColumnValueFilter. Takes a Cell instead of
byte array.
was:
Incompatible change for filters. For example, changes the parameters on
filterColumn method: e.g.
hbase-client-1.2.7-SNAPSHOT.jar, ColumnPrefixFilter.class
package org.apache.hadoop.hbase.filter
ColumnPrefixFilter.filterColumn ( byte[ ] buffer, int qualifierOffset, int
qualifierLength ) : Filter.ReturnCode
org/apache/hadoop/hbase/filter/ColumnPrefixFilter.filterColumn:([BII)Lorg/apache/hadoop/hbase/filter/Filter$ReturnCode;
Instead we take a Cell parameter.
> Filters should work with ByteBufferedCell
> -----------------------------------------
>
> Key: HBASE-12296
> URL: https://issues.apache.org/jira/browse/HBASE-12296
> Project: HBase
> Issue Type: Sub-task
> Components: regionserver, Scanners
> Reporter: ramkrishna.s.vasudevan
> Assignee: Anoop Sam John
> Fix For: 2.0.0
>
> Attachments: HBASE-12296_v1.patch, HBASE-12296_v1.patch
>
>
> Now we have added an extension for Cell in server side, ByteBufferedCell,
> where Cells are backed by BB (on heap or off heap). When the Cell is backed
> by off heap buffer, the getXXXArray() APIs has to create temp byte[] and do
> data copy and return that. This will be bit costly. We have avoided this in
> areas like CellComparator/SQM etc. Filter area was not touched in that patch.
> This Jira aims at doing it in Filter area.
> Eg : SCVF checking the cell value for the given value condition. It uses
> getValueArray() to get cell value bytes. When the cell is BB backed, it has
> to use getValueByteBuffer() API instead.
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