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https://issues.apache.org/jira/browse/HDFS-15463?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17160940#comment-17160940
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Hudson commented on HDFS-15463:
-------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #18451 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/18451/])
HDFS-15463. Add a tool to validate FsImage. (#2140) (github: rev
2cec50cf1657672e14541717b8222cecc3ad5dd0)
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/EditLogInputStream.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INode.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeReference.java
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/main/bin/hdfs.cmd
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
* (add)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FsImageValidation.java
* (add)
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFsImageValidation.java
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/main/bin/hdfs
* (add)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeReferenceValidation.java
> Add a tool to validate FsImage
> ------------------------------
>
> Key: HDFS-15463
> URL: https://issues.apache.org/jira/browse/HDFS-15463
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: namenode
> Reporter: Tsz-wo Sze
> Assignee: Tsz-wo Sze
> Priority: Major
> Fix For: 3.4.0
>
> Attachments: FsImageValidation20200709.patch,
> FsImageValidation20200712.patch, FsImageValidation20200714.patch,
> FsImageValidation20200715.patch, FsImageValidation20200715b.patch,
> FsImageValidation20200715c.patch, FsImageValidation20200717b.patch,
> FsImageValidation20200718.patch, HDFS-15463.000.patch
>
>
> Due to some snapshot related bugs, a fsimage may become corrupted. Using a
> corrupted fsimage may further result in data loss.
> In some cases, we found that reference counts are incorrect in some corrupted
> FsImage. One of the goals of the validation tool is to check reference
> counts.
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