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Michael McCandless commented on LUCENE-4575: -------------------------------------------- I thought we were going to rename ensureOpen's confusing boolean param? IW.setCommitData should be sync'd I think, eg to ensure visibility across threads of the changes to sis.userData? Hmm ... I think there's a thread hazard here, during commit; I think if pendingCommit is not null you should also call pendingCommit.setUserData? Else, a commit can finish and "undo" the user's change to the commit data (see finishCommit, where it calls .setUserData). Maybe we need a thread safety test here ... > Allow IndexWriter to commit, even just commitData > ------------------------------------------------- > > Key: LUCENE-4575 > URL: https://issues.apache.org/jira/browse/LUCENE-4575 > Project: Lucene - Core > Issue Type: Improvement > Components: core/index > Reporter: Shai Erera > Priority: Minor > Attachments: LUCENE-4575.patch, LUCENE-4575.patch > > > Spinoff from here > http://lucene.472066.n3.nabble.com/commit-with-only-commitData-td4022155.html. > In some cases, it is valuable to be able to commit changes to the index, even > if the changes are just commitData. Such data is sometimes used by > applications to register in the index some global application > information/state. > The proposal is: > * Add a setCommitData() API and separate it from commit() and prepareCommit() > (simplify their API) > * When that API is called, flip on the dirty/changes bit, so that this gets > committed even if no other changes were made to the index. > I will work on a patch a post. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org