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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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