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https://issues.apache.org/jira/browse/HADOOP-2495?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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stack updated HADOOP-2495:
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Attachment: perf.patch
Commit message:
M src/contrib/hbase/src/test/org/apache/hadoop/hbase/io/TestTextSequence.java
TextSequence no longer serializes. Remove test for serialization.
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/HStoreKey.java
Wrap the text byte buffer once in a ByteBuffer rather than per character
get.
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/io/BatchOperation.java
Put this class on a diet. Its readField is responsible for most of the
object creation when running the sequentialWrite experiment from PE.
Removed the Operation enum; nice but not really needed.
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/io/BatchUpdate.java
If put has a null value, throw exception (null value means DELETE).
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/io/TextSequence.java
Make it so it no longer serializes. I can't think of a good reason why
you'd want to serialize a TextSequence; if its happening, TS is being
misused.
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/HRegion.java
Call op.isPut instead of the removed op.getOp.
> [hbase] minor performance improvements: Slim-down BatchOperation
> ----------------------------------------------------------------
>
> Key: HADOOP-2495
> URL: https://issues.apache.org/jira/browse/HADOOP-2495
> Project: Hadoop
> Issue Type: Improvement
> Components: contrib/hbase
> Reporter: stack
> Priority: Minor
> Fix For: 0.16.0
>
> Attachments: perf.patch
>
>
> A couple of little improvements slimming down the hot
> BatchOperation.readFields method that is responsible for most object
> creations during a bulk update. Also, make a ByteBuffer once searching
> column family rather than one per character get.
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