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https://issues.apache.org/jira/browse/HDFS-608?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Konstantin Boudnik resolved HDFS-608.
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Resolution: Duplicate
This is DUP of HDFS-881
> BlockReceiver:receivePacket(): packet's header parsing logic is complicated.
> Refactoring will help w/ testing efforts
> ---------------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-608
> URL: https://issues.apache.org/jira/browse/HDFS-608
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Konstantin Boudnik
> Assignee: Konstantin Boudnik
> Attachments: HDFS-608.patch
>
>
> Current logic of getting an information from a packet header is kinda
> complicated with all shifting along the internal data buffer back and forth.
> Besides, an absence of clear API to access a packet header's information
> makes pipeline testing effort (even with aspects' application) to be a very
> complicated or even impossible.
> It'd be very nice to have a separate data container which will keep all the
> information about a packet header within and will initialized once when a new
> packet is acquired.
> In order to speed-up pipeline testing needed for append (HDFS-265) this
> modification might implemented in three different states:
> - introduce new header structure and refactor receivePacket()
> - refactor readNextPacket so it it will acquire next packet in initialize its
> header
> - refactor the sender side to use the packet's header structure as the
> receiver does.
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