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Posted to issues@hbase.apache.org by "Matteo Bertozzi (JIRA)" <ji...@apache.org> on 2012/06/22 21:08:44 UTC
[jira] [Commented] (HBASE-1902) Let PerformanceEvaluation support
setting tableName and compress algorithm
[ https://issues.apache.org/jira/browse/HBASE-1902?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13399526#comment-13399526 ]
Matteo Bertozzi commented on HBASE-1902:
----------------------------------------
This commit got lost during the HBASE-2367 merge (r926931 0.90 branch)
This patch is not in 0.92, 0.94 or trunk
> Let PerformanceEvaluation support setting tableName and compress algorithm
> --------------------------------------------------------------------------
>
> Key: HBASE-1902
> URL: https://issues.apache.org/jira/browse/HBASE-1902
> Project: HBase
> Issue Type: Improvement
> Components: test
> Affects Versions: 0.20.1
> Reporter: Schubert Zhang
> Assignee: Schubert Zhang
> Priority: Minor
> Fix For: 0.90.0
>
> Attachments: HBASE-1902-v1.patch
>
>
> 1. Current PerformanceEvaluation.java defaultly does not use compression, and always use table name as "TestTable". Tow comand- arguments are added to support setting tableName and compression algorithm by user. e.g.:
> (1) tableName="PE_LZO", compression="lzo"
> bin/hbase org.apache.hadoop.hbase.PerformanceEvaluation --table=PE_LZO --compress=lzo sequentialWrite 4
> (2) default (tabmeName="TesTable", compression="none"
> bin/hbase org.apache.hadoop.hbase.PerformanceEvaluation sequentialWrite 4
> 2. Current "public static byte[] generateValue(final Random r)" generates bytes[] which is too random. So the effect of compression is not obvious (e.g. there is not size reduce for LZO).
> A new "public static byte[] generateValue(final Random r)" is provided here. We can get 4:1 compression ratio for LZO now.
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