Can we get RB to send these to jira? Having comments here and on jira is very confusing...

On Nov 3, 2010, at 11:11 AM, Ramkumar Vadali wrote:


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http://svn.apache.org/repos/asf/hadoop/hdfs/trunk/src/java/org/apache/hadoop/hdfs/DFSUtil.java
<https://reviews.apache.org/r/27/#comment17>

It should be sufficient to pass blk.isCorrupt() here. The client can check the number of locations based on the remaining information.


- Ramkumar


On 2010-11-02 21:12:28, Patrick Kling wrote:

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(Updated 2010-11-02 21:12:28)


Review request for hadoop-hdfs.


Summary
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DFSClient.getBlockLocations returns BlockLocations with no indication that the corresponding blocks are corrupt

When there are no uncorrupted replicas of a block, FSNamesystem.getBlockLocations returns LocatedBlocks corresponding to corrupt blocks. When DFSClient converts these to BlockLocations, the information that the corresponding block is corrupt is lost. We should add a field to BlockLocation to indicate whether the corresponding block is corrupt in order to warn the client that reading this block will fail. This would be especially useful for tools such as RAID FSCK, which could then easily inspect whether data or parity blocks are corrupted without having to make direct RPC calls


This addresses bug HDFS-1483.
   https://issues.apache.org/jira/browse/HDFS-1483


Diffs
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http://svn.apache.org/repos/asf/hadoop/hdfs/trunk/src/java/org/apache/hadoop/hdfs/DFSUtil.java 1028386 http://svn.apache.org/repos/asf/hadoop/hdfs/trunk/src/test/hdfs/org/apache/hadoop/hdfs/TestDFSUtil.java PRE-CREATION

Diff: https://reviews.apache.org/r/27/diff


Testing
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TestDFSUtil


Thanks,

Patrick




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