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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-9188) Make block corruption related tests FsDataset-agnostic.
Date Wed, 14 Oct 2015 21:06:05 GMT

    [ https://issues.apache.org/jira/browse/HDFS-9188?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14957754#comment-14957754
] 

Colin Patrick McCabe commented on HDFS-9188:
--------------------------------------------

Thanks, [~eddyxu].

{code}
1533	    for(MaterializedReplica replica : replicas) {
1534	      replica.corruptData(sb.toString().getBytes());
1535	    }
{code}
You need to set UTF8 as the encoding.

+1 once that's resolved and pending jenkins

> Make block corruption related tests FsDataset-agnostic. 
> --------------------------------------------------------
>
>                 Key: HDFS-9188
>                 URL: https://issues.apache.org/jira/browse/HDFS-9188
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: HDFS, test
>    Affects Versions: 2.7.1
>            Reporter: Lei (Eddy) Xu
>            Assignee: Lei (Eddy) Xu
>         Attachments: HDFS-9188.000.patch, HDFS-9188.001.patch, HDFS-9188.002.patch, HDFS-9188.003.patch,
HDFS-9188.004.patch, HDFS-9188.005.patch
>
>
> Currently, HDFS does block corruption tests by directly accessing the files stored on
the storage directories, which assumes {{FsDatasetImpl}} is the dataset implementation. However,
with works like OZone (HDFS-7240) and HDFS-8679, there will be different FsDataset implementations.

> So we need a general way to run whitebox tests like corrupting blocks and crc files.



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