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https://issues.apache.org/jira/browse/HDFS-9452?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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James Clampffer updated HDFS-9452:
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Attachment: HDFS-9452.HDFS-8707.000.patch
Value of promise was being set before other other items in the capture list in
callback. This caused the stack to start unwinding as values were still
getting written to what used to be the top frame by asio worker.
Fix is to make sure the last thing the callback does is set the value of the
promise.
> libhdfs++ Fix memory stomp in OpenFileForRead.
> ----------------------------------------------
>
> Key: HDFS-9452
> URL: https://issues.apache.org/jira/browse/HDFS-9452
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
> Reporter: James Clampffer
> Assignee: James Clampffer
> Attachments: HDFS-9452.HDFS-8707.000.patch
>
>
> Running a simple test that opens and closes a file in many threads will fail
> under valgrind with an invalid write of size 8.
> It looks like the stack is unwinding in the calling thread before the
> callback invoked by asio in OpenFileForRead can set the input_stream pointer.
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