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https://issues.apache.org/jira/browse/TIKA-2780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16682639#comment-16682639
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Jeroen commented on TIKA-2780:
------------------------------
The strange thing is that `/dev/null` does not have any content, it always
returns 0 bytes when trying to read. So it is unclear why tika thinks there is
something happening in stdin.
> Intermittent failures in batch mode when STDIN = /tmp/null
> -----------------------------------------------------------
>
> Key: TIKA-2780
> URL: https://issues.apache.org/jira/browse/TIKA-2780
> Project: Tika
> Issue Type: Bug
> Components: batch
> Affects Versions: 1.19.1
> Reporter: Jeroen
> Priority: Major
>
> We found this strange behavior in the R wrapper for tika:
> We call rtika in batch mode using the -fileList parameter. However if in the
> java tika process STDIN is set to /dev/null with read permission (O_RDONLY)
> as is usually the default then, then tika will randomly fail occasionally
> with this error:
> {{ BatchProcess:ParallelFileProcessingResult{considered=7, added=7,
> consumed=2, numberHandledExceptions=0, secondsElapsed=1.539, exitStatus=0,
> causeForTermination='USER_INTERRUPTION'}}}
> As a workaround we now set STDIN to something that is unreadable and then
> everything works, but this is really strange behavior.
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