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From "Arpit Agarwal (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-10958) Add instrumentation hooks around Datanode disk IO
Date Wed, 14 Dec 2016 19:23:58 GMT

     [ https://issues.apache.org/jira/browse/HDFS-10958?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arpit Agarwal updated HDFS-10958:
---------------------------------
       Resolution: Fixed
     Hadoop Flags: Reviewed
    Fix Version/s: 3.0.0-alpha2
           Status: Resolved  (was: Patch Available)

Thank you [~xyao]. Fixed the following checkstyle issue and pushed to trunk.

{code}
--- a/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockMetadataHeader.java
+++ b/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockMetadataHeader.java
@@ -31,7 +31,6 @@

 import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.classification.InterfaceStability;
-import org.apache.hadoop.io.IOUtils;
 import org.apache.hadoop.util.DataChecksum;
{code}

The remaining checkstyle issues are unrelated to the patch (there is one false positive).

> Add instrumentation hooks around Datanode disk IO
> -------------------------------------------------
>
>                 Key: HDFS-10958
>                 URL: https://issues.apache.org/jira/browse/HDFS-10958
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode
>            Reporter: Xiaoyu Yao
>            Assignee: Arpit Agarwal
>             Fix For: 3.0.0-alpha2
>
>         Attachments: HDFS-10958.01.patch, HDFS-10958.02.patch, HDFS-10958.03.patch, HDFS-10958.04.patch,
HDFS-10958.05.patch, HDFS-10958.06.patch
>
>
> This ticket is opened to add instrumentation hooks around Datanode disk IO based on refactor
work from HDFS-10930.



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