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https://issues.apache.org/jira/browse/LUCENE-5412?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14147719#comment-14147719
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ASF subversion and git services commented on LUCENE-5412:
---------------------------------------------------------

Commit 1627535 from [~rcmuir] in branch 'dev/branches/lucene5969'
[ https://svn.apache.org/r1627535 ]

LUCENE-5969, LUCENE-5412: make .si immutable again, and make ancient writers 
read-only

> SI.files should strip segment names
> -----------------------------------
>
>                 Key: LUCENE-5412
>                 URL: https://issues.apache.org/jira/browse/LUCENE-5412
>             Project: Lucene - Core
>          Issue Type: Bug
>            Reporter: Robert Muir
>
> Followup from LUCENE-5377:
> the root cause of all the hair there is because SI.files (set of files used 
> by the segment), must be rewritten in addIndexes because its invalidated by 
> the change of segment name.
> alternatively we could just not store this stuff, and strip the segment 
> names. This is how CFS deals with this issue already.
> I think we can do this in a backwards compatible way too: for old codecs, the 
> readers could be changed to simply strip internally (e.g. ignore the "extra" 
> information they wrote) ?



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