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https://issues.apache.org/jira/browse/HDFS-12591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16293604#comment-16293604
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Hudson commented on HDFS-12591:
-------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #13391 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/13391/])
HDFS-12591. [READ] Implement LevelDBFileRegionFormat. Contributed by (cdouglas:
rev b634053c4daec181511abb314aeef0a8fe851086)
* (add)
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/common/blockaliasmap/impl/TestLevelDBFileRegionAliasMap.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
* (add)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/common/blockaliasmap/impl/LevelDBFileRegionAliasMap.java
> [READ] Implement LevelDBFileRegionFormat
> ----------------------------------------
>
> Key: HDFS-12591
> URL: https://issues.apache.org/jira/browse/HDFS-12591
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs
> Reporter: Ewan Higgs
> Assignee: Ewan Higgs
> Priority: Minor
> Attachments: HDFS-12591-HDFS-9806.001.patch,
> HDFS-12591-HDFS-9806.002.patch, HDFS-12591-HDFS-9806.003.patch,
> HDFS-12591-HDFS-9806.004.patch, HDFS-12591-HDFS-9806.005.patch,
> HDFS-12591-HDFS-9806.006.patch, HDFS-12591-HDFS-9806.007.patch
>
>
> The existing work for HDFS-9806 uses an implementation of the {{FileRegion}}
> read from a csv file. This is good for testability and diagnostic purposes,
> but it is not very efficient for larger systems.
> There should be a version that is similar to the {{TextFileRegionFormat}}
> that instead uses LevelDB.
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