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https://issues.apache.org/jira/browse/LUCENE-3493?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13122050#comment-13122050
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Jason Rutherglen commented on LUCENE-3493:
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bq. Solr's NRT does not rely on a custom IndexReader
Yikes, logically the custom reader functionality should!
{quote}properly override doOpenIfChanged, else it would be a bug{quote}
It's a bug because there's no way to implement that today. The DirectoryReader
is created deep inside of IW.getReader (there's no way to re-implement it's
functionality either because of private variable access).
I think we need a protected method for creating reader in IW. I think though
this becomes almost endless because I don't think there's a way to implement a
custom IW in Solr.
> Solr reopen on a custom reader doesn't work
> -------------------------------------------
>
> Key: LUCENE-3493
> URL: https://issues.apache.org/jira/browse/LUCENE-3493
> Project: Lucene - Java
> Issue Type: Bug
> Components: core/index
> Affects Versions: 3.4
> Reporter: Jason Rutherglen
> Priority: Blocker
> Attachments: LUCENE-3493.patch
>
>
> When a custom index reader is used with Solr and reopen, the custom reader
> vanishes after the reopen. It's a bug.
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