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https://issues.apache.org/jira/browse/LUCENE-5434?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13891170#comment-13891170
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Michael McCandless commented on LUCENE-5434:
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+1 for the change: the less we rely on OS/filesystem specific semantics, like
"delete on last close", the better.
On the patch, maybe move the incRef into IW.getReader? And, maybe move the
decRef into a new package private IW method that's called from SDR.onClose?
I'd just rather have the "sync'd on writer" code inside IW's sources ....
> Let NRT Readers prevent their files from being removed.
> -------------------------------------------------------
>
> Key: LUCENE-5434
> URL: https://issues.apache.org/jira/browse/LUCENE-5434
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Mark Miller
> Fix For: 5.0, 4.7
>
>
> See SOLR-5693 and our HDFS support - for something like HDFS to work with
> NRT, we need an ability for near realtime readers to hold references to their
> files to prevent deletes.
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