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https://issues.apache.org/jira/browse/HDFS-12915?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16306500#comment-16306500
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Lei (Eddy) Xu commented on HDFS-12915:
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[~chris.douglas] Thanks for the patch! +1 on the last patch.
The {{blockType}} is widely used in HDFS to differentiate a file is EC or not
today. I think it should not block this patch in.
I will commit the latest patch soon. Thanks for taking care of this,
[~chris.douglas] and thanks for the reviews, [~Sammi]
> Fix findbugs warning in INodeFile$HeaderFormat.getBlockLayoutRedundancy
> -----------------------------------------------------------------------
>
> Key: HDFS-12915
> URL: https://issues.apache.org/jira/browse/HDFS-12915
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 3.0.0
> Reporter: Wei-Chiu Chuang
> Attachments: HDFS-12915.00.patch, HDFS-12915.01.patch,
> HDFS-12915.02.patch
>
>
> It seems HDFS-12840 creates a new findbugs warning.
> Possible null pointer dereference of replication in
> org.apache.hadoop.hdfs.server.namenode.INodeFile$HeaderFormat.getBlockLayoutRedundancy(BlockType,
> Short, Byte)
> Bug type NP_NULL_ON_SOME_PATH (click for details)
> In class org.apache.hadoop.hdfs.server.namenode.INodeFile$HeaderFormat
> In method
> org.apache.hadoop.hdfs.server.namenode.INodeFile$HeaderFormat.getBlockLayoutRedundancy(BlockType,
> Short, Byte)
> Value loaded from replication
> Dereferenced at INodeFile.java:[line 210]
> Known null at INodeFile.java:[line 207]
> From a quick look at the patch, it seems bogus though. [~eddyxu][~Sammi]
> would you please double check?
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