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https://issues.apache.org/jira/browse/HBASE-10752?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13942611#comment-13942611
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Hudson commented on HBASE-10752:
--------------------------------
FAILURE: Integrated in HBase-TRUNK #5028 (See
[https://builds.apache.org/job/HBase-TRUNK/5028/])
HBASE-10752 Port HBASE-10270 'Remove DataBlockEncoding from BlockCacheKey' to
trunk (tedyu: rev 1579742)
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/BlockCache.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/BlockCacheKey.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFile.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileBlockIndex.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileDataBlockEncoder.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileDataBlockEncoderImpl.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileReaderV2.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileWriterV2.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/LruBlockCache.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/NoOpDataBlockEncoder.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/util/CompoundBloomFilter.java
*
/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/io/TestHeapSize.java
*
/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestCacheOnWrite.java
*
/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileBlockIndex.java
*
/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestLruBlockCache.java
*
/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestCacheOnWriteInSchema.java
> Port HBASE-10270 'Remove DataBlockEncoding from BlockCacheKey' to trunk
> -----------------------------------------------------------------------
>
> Key: HBASE-10752
> URL: https://issues.apache.org/jira/browse/HBASE-10752
> Project: HBase
> Issue Type: Improvement
> Reporter: Ted Yu
> Assignee: Ted Yu
> Priority: Minor
> Fix For: 0.99.0
>
> Attachments: 10752-v3.txt, 10752-v4.txt
>
>
> The JIRA removes the block encoding from the key and forces the caller of
> HFileReaderV2.readBlock() to specify the expected BlockType as well as the
> expected DataBlockEncoding when these matter. This allows for a decision on
> either of these at read time instead of cache time, puts responsibility where
> appropriate, fixes some cache misses when using the scan preloading (which
> does a read without knowing the type or encoding), allows for the
> BlockCacheKey to be re-used by the L2 BucketCache and sets us up for a future
> CompoundScannerV2 which can read both un-encoded and encoded data blocks.
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