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https://issues.apache.org/jira/browse/HDFS-755?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Todd Lipcon updated HDFS-755:
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Attachment: hdfs-755.txt
bq. Did you test w/o checksums enabled?
TestDFSShell covers this case by corrupting a block and reading it with the
-ignoreCrc option. Some other tests cover this too - I added a printout in
DFSInputStream to fire when checksums were disabled and it did so. In
investigating this I also noticed that TestFSInputChecker in hdfs was supposed
to do this, but actually didn't (there was an unused "readCS" parameter). This
new patch fixes that bug in the test.
> Read multiple checksum chunks at once in DFSInputStream
> -------------------------------------------------------
>
> Key: HDFS-755
> URL: https://issues.apache.org/jira/browse/HDFS-755
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs client
> Affects Versions: 0.22.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Attachments: hdfs-755.txt, hdfs-755.txt, hdfs-755.txt, hdfs-755.txt,
> hdfs-755.txt
>
>
> HADOOP-3205 adds the ability for FSInputChecker subclasses to read multiple
> checksum chunks in a single call to readChunk. This is the HDFS-side use of
> that new feature.
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