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From "John McNamee" <jp...@terpmail.umd.edu>
Subject Review Request 21826: Accumulo-2632
Date Thu, 22 May 2014 19:57:28 GMT

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/21826/
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Review request for accumulo.


Repository: accumulo


Description
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The goal was to find a way to increase the write speed in the DfsLogger using compression.
This patch uses the Snappy compression library and was the most optimum way that I could find
to increase write performance.
The option to use compression has been made configurable.
Recovery has been modified to uncompress the WAL if needed.


Diffs
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  core/src/main/java/org/apache/accumulo/core/conf/Property.java 62b0a33 
  server/tserver/src/main/java/org/apache/accumulo/tserver/log/DecompressingInputStream.java
PRE-CREATION 
  server/tserver/src/main/java/org/apache/accumulo/tserver/log/DfsLogger.java bfa51d3 
  server/tserver/src/test/java/org/apache/accumulo/tserver/log/DecompressingInputStreamTest.java
PRE-CREATION 

Diff: https://reviews.apache.org/r/21826/diff/


Testing
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There is a unit test for the DecryptingInputStream.java, and I ran continuous Ingest/ continuous
verify with the agitator on.


Thanks,

John McNamee


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