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https://issues.apache.org/jira/browse/HDFS-9342?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15012445#comment-15012445
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Zhe Zhang commented on HDFS-9342:
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I agree, we can add the test as part of HDFS-7661.
I will make another pass on the details of {{getAckedBlockGroupLength}} and
post a review. Actually, this is a good use case for the improved testing in
HDFS-9098. I will make {{getAckedBlockGroupLength}} visible for testing and
create a test case in HDFS-9098. Would be great if you can help review.
> Erasure coding: client should update and commit block based on acknowledged
> size
> --------------------------------------------------------------------------------
>
> Key: HDFS-9342
> URL: https://issues.apache.org/jira/browse/HDFS-9342
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: erasure-coding
> Affects Versions: 3.0.0
> Reporter: Zhe Zhang
> Assignee: Walter Su
> Attachments: HDFS-9342.01.patch
>
>
> For non-EC files, we have:
> {code}
> protected ExtendedBlock block; // its length is number of bytes acked
> {code}
> For EC files, the size of {{DFSStripedOutputStream#currentBlockGroup}} is
> incremented in {{writeChunk}} without waiting for ack. And both
> {{updatePipeline}} and {{commitBlock}} are based on size of
> {{currentBlockGroup}}.
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