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https://issues.apache.org/jira/browse/HBASE-6597?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Phabricator updated HBASE-6597:
-------------------------------

    Attachment: D5895.3.patch

mbautin updated the revision "[jira] [HBASE-6597] [89-fb] Incremental data 
block encoding".
Reviewers: Kannan, Karthik, Liyin, aaiyer, avf, JIRA

  Critical bugfixes in updating encoder state.

REVISION DETAIL
  https://reviews.facebook.net/D5895

AFFECTED FILES
  src/main/java/org/apache/hadoop/hbase/KeyValue.java
  
src/main/java/org/apache/hadoop/hbase/io/encoding/BufferedDataBlockEncoder.java
  src/main/java/org/apache/hadoop/hbase/io/encoding/CompressionState.java
  src/main/java/org/apache/hadoop/hbase/io/encoding/CopyKeyDataBlockEncoder.java
  src/main/java/org/apache/hadoop/hbase/io/encoding/DataBlockEncoder.java
  src/main/java/org/apache/hadoop/hbase/io/encoding/DataBlockEncoding.java
  src/main/java/org/apache/hadoop/hbase/io/encoding/DiffKeyDeltaEncoder.java
  src/main/java/org/apache/hadoop/hbase/io/encoding/EncodedDataBlock.java
  src/main/java/org/apache/hadoop/hbase/io/encoding/FastDiffDeltaEncoder.java
  src/main/java/org/apache/hadoop/hbase/io/encoding/PrefixKeyDeltaEncoder.java
  src/main/java/org/apache/hadoop/hbase/io/hfile/HFileBlock.java
  src/main/java/org/apache/hadoop/hbase/io/hfile/HFileDataBlockEncoder.java
  src/main/java/org/apache/hadoop/hbase/io/hfile/HFileDataBlockEncoderImpl.java
  src/main/java/org/apache/hadoop/hbase/io/hfile/HFileReaderV2.java
  src/main/java/org/apache/hadoop/hbase/io/hfile/HFileWriterV2.java
  src/main/java/org/apache/hadoop/hbase/io/hfile/NoOpDataBlockEncoder.java
  src/main/java/org/apache/hadoop/hbase/util/ByteBufferUtils.java
  src/test/java/org/apache/hadoop/hbase/io/encoding/TestDataBlockEncoders.java
  src/test/java/org/apache/hadoop/hbase/io/hfile/TestCacheOnWrite.java
  src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFile.java
  src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileBlock.java
  src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileBlockIndex.java
  src/test/java/org/apache/hadoop/hbase/io/hfile/TestIncrementalEncoding.java
  src/test/java/org/apache/hadoop/hbase/util/TestByteBufferUtils.java

To: Kannan, Karthik, Liyin, aaiyer, avf, JIRA, mbautin
Cc: tedyu

                
> Block Encoding Size Estimation
> ------------------------------
>
>                 Key: HBASE-6597
>                 URL: https://issues.apache.org/jira/browse/HBASE-6597
>             Project: HBase
>          Issue Type: Improvement
>          Components: io
>    Affects Versions: 0.89-fb
>            Reporter: Brian Nixon
>            Assignee: Mikhail Bautin
>            Priority: Minor
>         Attachments: D5895.1.patch, D5895.2.patch, D5895.3.patch
>
>
> Blocks boundaries as created by current writers are determined by the size of 
> the unencoded data. However, blocks in memory are kept encoded. By using an 
> estimate for the encoded size of the block, we can get greater consistency in 
> size.

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