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https://issues.apache.org/jira/browse/HDFS-7686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14321344#comment-14321344
]
Hudson commented on HDFS-7686:
------------------------------
FAILURE: Integrated in Hadoop-Yarn-trunk-Java8 #104 (See
[https://builds.apache.org/job/Hadoop-Yarn-trunk-Java8/104/])
HDFS-7686. Re-add rapid rescan of possibly corrupt block feature to the block
scanner (cmccabe) (cmccabe: rev 8bb9a5000ed06856abbad268c43ce1d5ad5bdd43)
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestBlockScanner.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockSender.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/VolumeScanner.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockScanner.java
update CHANGES.txt for HDFS-7430, HDFS-7721, HDFS-7686 (cmccabe: rev
19be82cd1614000bb26e5684f763c736ea46ff1a)
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
> 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: 2.7.0
> Reporter: Rushabh S Shah
> Assignee: Colin Patrick McCabe
> Priority: Blocker
> Fix For: 2.7.0
>
> 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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