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https://issues.apache.org/jira/browse/HDFS-2130?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Todd Lipcon updated HDFS-2130:
------------------------------
Attachment: hdfs-2130.txt
Fix for the findbugs warning. There was a needless null check on {{streams}} in
{{BlockReceiver}}. Both of the implementations for {{createStreams}} always
either return a non-null object or throw an exception.
> Switch default checksum to CRC32C
> ---------------------------------
>
> Key: HDFS-2130
> URL: https://issues.apache.org/jira/browse/HDFS-2130
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs client
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Attachments: hdfs-2130.txt, hdfs-2130.txt, hdfs-2130.txt
>
>
> Once the other subtasks/parts of HDFS-2080 are complete, CRC32C will be a
> much more efficient checksum algorithm than CRC32. Hence we should change the
> default checksum to CRC32C.
> However, in order to continue to support append against blocks created with
> the old checksum, we will need to implement some kind of handshaking in the
> write pipeline.
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