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https://issues.apache.org/jira/browse/HBASE-10323?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13966812#comment-13966812
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Hudson commented on HBASE-10323:
--------------------------------
FAILURE: Integrated in HBase-0.94-on-Hadoop-2 #65 (See
[https://builds.apache.org/job/HBase-0.94-on-Hadoop-2/65/])
HBASE-10921 Port HBASE-10323 'Auto detect data block encoding in
HFileOutputFormat' to 0.94 (Kashif) (tedyu: rev 1586701)
*
/hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/mapreduce/HFileOutputFormat.java
*
/hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/mapreduce/TestHFileOutputFormat.java
> Auto detect data block encoding in HFileOutputFormat
> ----------------------------------------------------
>
> Key: HBASE-10323
> URL: https://issues.apache.org/jira/browse/HBASE-10323
> Project: HBase
> Issue Type: Improvement
> Components: mapreduce
> Reporter: Ishan Chhabra
> Assignee: Ishan Chhabra
> Fix For: 0.98.0, 0.99.0
>
> Attachments: HBASE_10323-0.94.15-v1.patch,
> HBASE_10323-0.94.15-v2.patch, HBASE_10323-0.94.15-v3.patch,
> HBASE_10323-0.94.15-v4.patch, HBASE_10323-0.94.15-v5.patch,
> HBASE_10323-trunk-v1.patch, HBASE_10323-trunk-v2.patch,
> HBASE_10323-trunk-v3.patch, HBASE_10323-trunk-v4.patch
>
>
> Currently, one has to specify the data block encoding of the table explicitly
> using the config parameter
> "hbase.mapreduce.hfileoutputformat.datablock.encoding" when doing a bulkload
> load. This option is easily missed, not documented and also works differently
> than compression, block size and bloom filter type, which are auto detected.
> The solution would be to add support to auto detect datablock encoding
> similar to other parameters.
> The current patch does the following:
> 1. Automatically detects datablock encoding in HFileOutputFormat.
> 2. Keeps the legacy option of manually specifying the datablock encoding
> around as a method to override auto detections.
> 3. Moves string conf parsing to the start of the program so that it fails
> fast during starting up instead of failing during record writes. It also
> makes the internals of the program type safe.
> 4. Adds missing doc strings and unit tests for code serializing and
> deserializing config paramerters for bloom filer type, block size and
> datablock encoding.
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