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Posted to common-dev@hadoop.apache.org by "Konstantin Shvachko (JIRA)" <ji...@apache.org> on 2006/03/24 11:42:28 UTC
[jira] Updated: (HADOOP-95) dfs validation
[ http://issues.apache.org/jira/browse/HADOOP-95?page=all ]
Konstantin Shvachko updated HADOOP-95:
--------------------------------------
Attachment: TestReadFS.java
IOMapperAdapter.java
AccumulatingReducer.java
This map-reduce test reads all blocks of all files, and detects which of them are missing or corrupted.
See HADOOP-101 discussion.
> dfs validation
> --------------
>
> Key: HADOOP-95
> URL: http://issues.apache.org/jira/browse/HADOOP-95
> Project: Hadoop
> Type: Improvement
> Components: dfs
> Versions: 0.1
> Reporter: Hairong Kuang
> Attachments: AccumulatingReducer.java, IOMapperAdapter.java, TestReadFS.java
>
> Dfs needs a validation operation similiar to fsck, so that we get to know the files that are corrupted and which data blocks are missing.
> Dfs namenode also needs to log more specific information such as which block is replication or is deleted. So when something goes wrong, we have a clue what has happened.
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