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From "Michael McCandless (JIRA)" <>
Subject [jira] Resolved: (LUCENE-1030) "Read-only" IndexReaders
Date Mon, 22 Sep 2008 18:48:44 GMT


Michael McCandless resolved LUCENE-1030.

    Resolution: Duplicate

Read-only IndexReaders were added in 2.4 (LUCENE-1329).

> "Read-only" IndexReaders
> ------------------------
>                 Key: LUCENE-1030
>                 URL:
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Index
>            Reporter: Michael Busch
>            Priority: Minor
> IndexReaders are able to perform certain write operations on an index (setNorm(), deleteDocument()).
This makes issues like LUCENE-743 more complicated and also duplicate code for acquiring locks
and write transactions is necessary.
> Therefore we should make IndexReaders "read-only" in the future. However, we have to
find a good solution to support setting norms and deleting documents by docid with the IndexWriter.
See related discussions in LUCENE-743 and

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