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https://issues.apache.org/jira/browse/HDFS-8287?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14681321#comment-14681321
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Kai Sasaki commented on HDFS-8287:
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[~walter.k.su] Thank you for reviewing.
{{ParityGenerator}} also receives a index which points to the target cell
buffer. Because of this, even if {{currentCellBuffersIndex}} is changed after
entity is enqueued, {{ParityGenerator}} can use proper index and corresponding
cell buffer.
However, there are some points to be fixed (removing first queue entity and
avoiding increment of {{currentCellBuffersIndex}} for readabiliy) Could you
check again? Thanks.
> DFSStripedOutputStream.writeChunk should not wait for writing parity
> ---------------------------------------------------------------------
>
> Key: HDFS-8287
> URL: https://issues.apache.org/jira/browse/HDFS-8287
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
> Reporter: Tsz Wo Nicholas Sze
> Assignee: Kai Sasaki
> Attachments: HDFS-8287-HDFS-7285.00.patch,
> HDFS-8287-HDFS-7285.01.patch
>
>
> When a stripping cell is full, writeChunk computes and generates parity
> packets. It sequentially calls waitAndQueuePacket so that user client cannot
> continue to write data until it finishes.
> We should allow user client to continue writing instead but not blocking it
> when writing parity.
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