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https://issues.apache.org/jira/browse/TEZ-2575?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rajesh Balamohan updated TEZ-2575:
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Attachment: TEZ-2575.branch-0.7.patch
Rebasing for branch-0.7. TEZ-2602 also needs to be ported along with this for
branch-0.7.
> Handle KeyValue pairs size which do not fit in a single block in
> PipelinedSorter
> --------------------------------------------------------------------------------
>
> Key: TEZ-2575
> URL: https://issues.apache.org/jira/browse/TEZ-2575
> Project: Apache Tez
> Issue Type: Improvement
> Affects Versions: 0.5.0
> Reporter: Saikat
> Assignee: Saikat
> Fix For: 0.8.0-alpha
>
> Attachments: TEZ-2575.1.patch, TEZ-2575.2.patch, TEZ-2575.3.patch,
> TEZ-2575.4.patch, TEZ-2575.5.patch, TEZ-2575.branch-0.7.patch, TEZ-2575.patch
>
>
> In the present implementation, the available buffer is divided into blocks
> (specified in the constructor for pipeline sort). and a linked list of these
> block byte buffers is maintained.
> A span is created out of the buffers.
> The present logic, doesnot handle scenario where a single key-value pair size
> doesnot fit into any of the blocks.
> example if 1mb total memory is divided into 4 blocks, (256 kb each),
> if a single KV pair is greater than the blocksize(~ignoring meta data size),
> then it fails with buffer exceptions.
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