[jira] Commented: (HBASE-1875) Compression test utility

["stack (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-1875?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12760940#action_12760940 ] 

stack commented on HBASE-1875:
------------------------------

Comment from Stephen Mulcahy:

{code}

Hi,

Thanks for this. I found it very useful this morning. Can we get this included in the standard distribution?

For those not so familiar with building and running code against hbase, the following detailed steps may be useful,

1. Download compression test util from
http://mail-archives.apache.org/mod_mbox/hadoop-hbase-user/200909.mbox/%3C4AC272
AE.3080105@gmail.com%3E

2. Compile

(change .jar's below to match your hadoop and hbase versions)

javac -cp hadoop/hadoop-0.20.1-core.jar:hbase/hbase-0.20.0.jar HFileCompressionTest.java

3. "Install"
mkdir -p build/org/apache/hadoop/hbase/test
mv HFileCompressionTest.class build/org/apache/hadoop/hbase/test

4. Run
export HBASE_CLASSPATH=build
hbase/bin/hbase org.apache.hadoop.hbase.test.HFileCompressionTest hdfs://hbase.example.org:9000/ lzo

-stephen
{code}

> Compression test utility
> ------------------------
>
>                 Key: HBASE-1875
>                 URL: https://issues.apache.org/jira/browse/HBASE-1875
>             Project: Hadoop HBase
>          Issue Type: New Feature
>          Components: util
>    Affects Versions: 0.20.0
>            Reporter: elsif 
>            Priority: Trivial
>             Fix For: 0.20.1
>
>         Attachments: HFileCompressionTest.java
>
>
> Attached is a stand alone utility to test compression compatibility
> before starting hbase:
> # ./hbase org.apache.hadoop.hbase.test.HFileCompressionTest
> Usage: HFileCompressionTest hdfs compression
>   compression must be one of [ none, gz, lzo ]
> # ./hbase org.apache.hadoop.hbase.test.HFileCompressionTest
> hdfs://localhost:8020/ lzo
> 09/09/29 13:39:55 INFO lzo.GPLNativeCodeLoader: Loaded native gpl library
> 09/09/29 13:39:55 INFO lzo.LzoCodec: Successfully loaded & initialized
> native-lzo library
> 09/09/29 13:39:55 INFO compress.CodecPool: Got brand-new compressor
> OK
> The utility creates a temporary HFile named '.hfile-comp-test' at the
> specified HDFS path and outputs either 'OK' or 'FAILED'.

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