[
https://issues.apache.org/jira/browse/ARROW-6180?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16906653#comment-16906653
]
Deepak Majeti commented on ARROW-6180:
--------------------------------------
[~wesmckinn], [~pitrou] looks like the issue can also happen in a
single-threaded application when you read multiple column chunks in a
row-by-row fashion from each chunk. You end up creating a BufferedInputStream
for each chunk and all these InputStreams share the same RandomAccessFile and
thereby getting clobbered.
> [C++] Create InputStream that references a segment of a RandomAccessFile
> ------------------------------------------------------------------------
>
> Key: ARROW-6180
> URL: https://issues.apache.org/jira/browse/ARROW-6180
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Wes McKinney
> Assignee: Zherui Cao
> Priority: Major
>
> If different threads wants to do buffered reads over different portions of a
> file (and they are unable to create their own separate file handles), they
> may clobber each other. I would propose creating an object that keeps the
> RandomAccessFile internally and implements the InputStream API in a way that
> is safe from other threads changing the file position
--
This message was sent by Atlassian JIRA
(v7.6.14#76016)