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https://issues.apache.org/jira/browse/HBASE-7845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13608631#comment-13608631
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Liang Xie commented on HBASE-7845:
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[~jmspaggi], thanks for your help.
I just appended "-Xmx4096m -Xms4096m" to hbase-env.sh, then start hbase
instance, then ran "bin/hbase
org.apache.hadoop.hbase.HFilePerformanceEvaluation" one by one.
Because it'll check file exist and delete/recreate file in each run, so seems
to me it didn't need to restart hbase server between each run.
> optimize hfile index key
> ------------------------
>
> Key: HBASE-7845
> URL: https://issues.apache.org/jira/browse/HBASE-7845
> Project: HBase
> Issue Type: Improvement
> Components: HFile
> Affects Versions: 0.96.0
> Reporter: Liang Xie
> Assignee: Liang Xie
> Fix For: 0.98.0
>
> Attachments: HBASE-7845.txt, HBASE-7845-v2.txt, HBASE-7845-v3.txt,
> HBASE-7845-v4.txt, HBASE-7845-v5.txt, HBASE-7845-v6.txt, HBASE-7845-v7.txt,
> HBASE-7845-v8.txt
>
>
> Leveldb uses ByteWiseComparatorImpl::FindShortestSeparator() &
> FindShortSuccessor() to reduce index key size, it would be helpful under
> special conditions.
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