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https://issues.apache.org/jira/browse/HBASE-4608?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13230538#comment-13230538
]
Hudson commented on HBASE-4608:
-------------------------------
Integrated in HBase-TRUNK #2683 (See
[https://builds.apache.org/job/HBase-TRUNK/2683/])
HBASE-4608 HLog Compression (Revision 1301165)
Result = FAILURE
stack :
Files :
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/HConstants.java
*
/hbase/trunk/src/main/java/org/apache/hadoop/hbase/regionserver/wal/CompressionContext.java
*
/hbase/trunk/src/main/java/org/apache/hadoop/hbase/regionserver/wal/Compressor.java
*
/hbase/trunk/src/main/java/org/apache/hadoop/hbase/regionserver/wal/Dictionary.java
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLog.java
*
/hbase/trunk/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLogKey.java
*
/hbase/trunk/src/main/java/org/apache/hadoop/hbase/regionserver/wal/KeyValueCompression.java
*
/hbase/trunk/src/main/java/org/apache/hadoop/hbase/regionserver/wal/LRUDictionary.java
*
/hbase/trunk/src/main/java/org/apache/hadoop/hbase/regionserver/wal/SequenceFileLogReader.java
*
/hbase/trunk/src/main/java/org/apache/hadoop/hbase/regionserver/wal/SequenceFileLogWriter.java
*
/hbase/trunk/src/main/java/org/apache/hadoop/hbase/regionserver/wal/WALEdit.java
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/util/Bytes.java
*
/hbase/trunk/src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestCompressor.java
*
/hbase/trunk/src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestKeyValueCompression.java
*
/hbase/trunk/src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestLRUDictionary.java
*
/hbase/trunk/src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestWALReplay.java
*
/hbase/trunk/src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestWALReplayCompressed.java
> HLog Compression
> ----------------
>
> Key: HBASE-4608
> URL: https://issues.apache.org/jira/browse/HBASE-4608
> Project: HBase
> Issue Type: New Feature
> Reporter: Li Pi
> Assignee: Li Pi
> Fix For: 0.94.0
>
> Attachments: 4608-v19.txt, 4608-v20.txt, 4608-v22.txt, 4608v1.txt,
> 4608v13.txt, 4608v13.txt, 4608v14.txt, 4608v15.txt, 4608v16.txt, 4608v17.txt,
> 4608v18.txt, 4608v23.txt, 4608v24.txt, 4608v25.txt, 4608v27.txt, 4608v29.txt,
> 4608v30.txt, 4608v5.txt, 4608v6.txt, 4608v7.txt, 4608v8fixed.txt,
> hbase-4608-v28-delta.txt, hbase-4608-v28.txt, hbase-4608-v28.txt
>
>
> The current bottleneck to HBase write speed is replicating the WAL appends
> across different datanodes. We can speed up this process by compressing the
> HLog. Current plan involves using a dictionary to compress table name, region
> id, cf name, and possibly other bits of repeated data. Also, HLog format may
> be changed in other ways to produce a smaller HLog.
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