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https://issues.apache.org/jira/browse/HDFS-5884?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jing Zhao resolved HDFS-5884.
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Resolution: Fixed
Fix Version/s: HDFS-5698 (FSImage in protobuf)
Hadoop Flags: Reviewed
+1. I've committed this.
> LoadDelegator should use IOUtils.readFully() to read the magic header
> ---------------------------------------------------------------------
>
> Key: HDFS-5884
> URL: https://issues.apache.org/jira/browse/HDFS-5884
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Affects Versions: HDFS-5698 (FSImage in protobuf)
> Reporter: Haohui Mai
> Assignee: Haohui Mai
> Fix For: HDFS-5698 (FSImage in protobuf)
>
> Attachments: HDFS-5884.000.patch
>
>
> Currently FSImageFormat.LoadDelegator reads the magic header using
> {{FileInputStream.read()}}. It does not guarantee that the magic header is
> fully read. It should use {{IOUtils.readFully()}} instead.
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