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https://issues.apache.org/jira/browse/HDFS-7686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14319622#comment-14319622
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Hadoop QA commented on HDFS-7686:
---------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12698527/HDFS-7686.004.patch
against trunk revision 2f1e5dc.
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 1 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. There were no new javadoc warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 2.0.3) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in
hadoop-hdfs-project/hadoop-hdfs.
Test results:
https://builds.apache.org/job/PreCommit-HDFS-Build/9568//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/9568//console
This message is automatically generated.
> Re-add rapid rescan of possibly corrupt block feature to the block scanner
> --------------------------------------------------------------------------
>
> Key: HDFS-7686
> URL: https://issues.apache.org/jira/browse/HDFS-7686
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 3.0.0
> Reporter: Rushabh S Shah
> Assignee: Colin Patrick McCabe
> Priority: Blocker
> Attachments: HDFS-7686.002.patch, HDFS-7686.003.patch,
> HDFS-7686.004.patch
>
>
> When doing a transferTo (aka sendfile operation) from the DataNode to a
> client, we may hit an I/O error from the disk. If we believe this is the
> case, we should be able to tell the block scanner to rescan that block soon.
> The feature was originally implemented in HDFS-7548 but was removed by
> HDFS-7430. We should re-add it.
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