[ 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)