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https://issues.apache.org/jira/browse/HDFS-11379?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiao Chen updated HDFS-11379:
-----------------------------
    Status: Patch Available  (was: Reopened)

> DFSInputStream may infinite loop requesting block locations
> -----------------------------------------------------------
>
>                 Key: HDFS-11379
>                 URL: https://issues.apache.org/jira/browse/HDFS-11379
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs-client
>    Affects Versions: 2.7.0
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>            Priority: Critical
>             Fix For: 2.8.0, 3.0.0-alpha3
>
>         Attachments: HDFS-11379.branch-2.7.patch, HDFS-11379.branch-2.patch, 
> HDFS-11379.trunk.patch
>
>
> DFSInputStream creation caches file size and initial range of locations.  If 
> the file is truncated (or replaced) and the client attempts to read outside 
> the initial range, the client goes into a tight infinite looping requesting 
> locations for the nonexistent range.



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