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https://issues.apache.org/jira/browse/HDFS-2263?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13176038#comment-13176038
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Hadoop QA commented on HDFS-2263:
---------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12508641/HDFS-2263.patch
against trunk revision .
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 6 new or modified tests.
-1 javadoc. The javadoc tool appears to have generated 20 warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 eclipse:eclipse. The patch built with eclipse:eclipse.
-1 findbugs. The patch appears to introduce 1 new Findbugs (version 1.3.9)
warnings.
-1 release audit. The applied patch generated 1 release audit warnings
(more than the trunk's current 0 warnings).
-1 core tests. The patch failed these unit tests:
org.apache.hadoop.hdfs.TestClientReportBadBlock
org.apache.hadoop.hdfs.TestDFSClientRetries
org.apache.hadoop.hdfs.TestDatanodeBlockScanner
org.apache.hadoop.hdfs.TestPread
org.apache.hadoop.hdfs.server.blockmanagement.TestBlockTokenWithDFS
+1 contrib tests. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HDFS-Build/1740//testReport/
Release audit warnings:
https://builds.apache.org/job/PreCommit-HDFS-Build/1740//artifact/trunk/patchprocess/patchReleaseAuditProblems.txt
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HDFS-Build/1740//artifact/trunk/hadoop-hdfs-project/patchprocess/newPatchFindbugsWarningshadoop-hdfs.html
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/1740//console
This message is automatically generated.
> Make DFSClient report bad blocks more quickly
> ---------------------------------------------
>
> Key: HDFS-2263
> URL: https://issues.apache.org/jira/browse/HDFS-2263
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs client
> Affects Versions: 0.20.2
> Reporter: Aaron T. Myers
> Assignee: Harsh J
> Attachments: HDFS-2263.patch
>
>
> In certain circumstances the DFSClient may detect a block as being bad
> without reporting it promptly to the NN.
> If when reading a file a client finds an invalid checksum of a block, it
> immediately reports that bad block to the NN. If when serving up a block a DN
> finds a truncated block, it reports this to the client, but the client merely
> adds that DN to the list of dead nodes and moves on to trying another DN,
> without reporting this to the NN.
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