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https://issues.apache.org/jira/browse/HDFS-877?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Todd Lipcon updated HDFS-877:
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Attachment: hdfs-877.txt
New patch addresses findbugs warning (isLastPacket member is now unused)
> Client-driven block verification not functioning
> ------------------------------------------------
>
> Key: HDFS-877
> URL: https://issues.apache.org/jira/browse/HDFS-877
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs client, test
> Affects Versions: 0.20.1, 0.21.0, 0.22.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Blocker
> Attachments: hdfs-877.txt, hdfs-877.txt
>
>
> This is actually the reason for HDFS-734 (TestDatanodeBlockScanner timing
> out). The issue is that DFSInputStream relies on readChunk being called one
> last time at the end of the file in order to receive the
> lastPacketInBlock=true packet from the DN. However, DFSInputStream.read
> checks pos < getFileLength() before issuing the read. Thus gotEOS never
> shifts to true and checksumOk() is never called.
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