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https://issues.apache.org/jira/browse/KAFKA-9156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16986321#comment-16986321
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ASF GitHub Bot commented on KAFKA-9156:
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ijuma commented on pull request #7760: KAFKA-9156: fix LazyTimeIndex &
LazyOffsetIndex concurrency
URL: https://github.com/apache/kafka/pull/7760
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> LazyTimeIndex & LazyOffsetIndex may cause niobufferoverflow in concurrent
> state
> -------------------------------------------------------------------------------
>
> Key: KAFKA-9156
> URL: https://issues.apache.org/jira/browse/KAFKA-9156
> Project: Kafka
> Issue Type: Bug
> Components: core
> Affects Versions: 2.3.0, 2.3.1
> Reporter: shilin Lu
> Assignee: Alex Mironov
> Priority: Blocker
> Labels: regression
> Fix For: 2.4.0, 2.3.2
>
> Attachments: image-2019-11-07-17-42-13-852.png,
> image-2019-11-07-17-44-05-357.png, image-2019-11-07-17-46-53-650.png
>
>
> !image-2019-11-07-17-42-13-852.png!
> this timeindex get function is not thread safe ,may cause create some
> timeindex.
> !image-2019-11-07-17-44-05-357.png!
> When create timeindex not exactly one ,may cause mappedbytebuffer position to
> end. Then write index entry to this mmap file will cause
> java.nio.BufferOverflowException.
>
> !image-2019-11-07-17-46-53-650.png!
>
>
>
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