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From "Christian Spriegel (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-3370) Deflate Compression corrupts SSTables
Date Tue, 18 Oct 2011 15:23:10 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-3370?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13129794#comment-13129794
] 

Christian Spriegel commented on CASSANDRA-3370:
-----------------------------------------------

My Java version is: 
java version "1.6.0_26"
Java(TM) SE Runtime Environment (build 1.6.0_26-b03)
Java HotSpot(TM) 64-Bit Server VM (build 20.1-b02, mixed mode)

Cassandra report during startup:
INFO 17:20:39,113 JVM vendor/version: Java HotSpot(TM) 64-Bit Server VM/1.6.0_26

I will test tonight ...
                
> Deflate Compression corrupts SSTables
> -------------------------------------
>
>                 Key: CASSANDRA-3370
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3370
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 1.0.0
>         Environment: Ubuntu Linux, amd64, Cassandra 1.0.0-rc2
>            Reporter: Christian Spriegel
>            Assignee: Sylvain Lebresne
>         Attachments: system.log
>
>
> Hi,
> it seems that the Deflate Compressor corrupts the SSTables. 3 out of 3 Installations
were corrupt. Snappy works fine.
> Here is what I did:
> 1. Start a single cassandra node (I was using ByteOrderedPartitioner)
> 2. Write data into cf that uses deflate compression - I think it has to be enough data
so that the data folder contains some files.
> 3. When I now try to read (I did a range scan) from my application, it fails and the
logs show corruptions:
> Caused by: org.apache.cassandra.io.compress.CorruptedBlockException: (/home/cspriegel/Development/cassandra1/data/Test/Response-h-2-Data.db):
corruption detected, chunk at 0 of length 65536.
> regards,
> Christian

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