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https://issues.apache.org/jira/browse/SOLR-2565?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hoss Man updated SOLR-2565:
---------------------------

    Attachment: SOLR-2565__HuperDuperAutoCommitTest.patch

As mark mentioned, i started looking into a better overall meme for testing 
autocommit -- i could never reproduce any of the failures charlie cron was 
complaining about, but the tests didn't make any sense to me anyway.

path demonstrates a new overall approach, using more detailed monitor of events 
-- not just "the most recent event" but all of them in a queue of (rough) 
timestamps.

at the moment one of the tests has an @Ignore:nocommit because of the delete 
bug that miller mentioned, but it would be helpful to know if people who were 
seeing problems running AutoCOmmitTest.testSoftAndHardCommitMaxTime (ie: 
charlie cron and simon) could try this patch out and see if it works better for 
them.

> Prevent IW#close and cut over to IW#commit
> ------------------------------------------
>
>                 Key: SOLR-2565
>                 URL: https://issues.apache.org/jira/browse/SOLR-2565
>             Project: Solr
>          Issue Type: Improvement
>          Components: update
>    Affects Versions: 4.0
>            Reporter: Simon Willnauer
>            Assignee: Mark Miller
>             Fix For: 4.0
>
>         Attachments: SOLR-2565-revert.patch, SOLR-2565.patch, 
> SOLR-2565.patch, SOLR-2565.patch, SOLR-2565__HuperDuperAutoCommitTest.patch, 
> dump.txt, slowtests.txt
>
>
> Spinnoff from SOLR-2193. We already have a branch to work on this issue here 
> https://svn.apache.org/repos/asf/lucene/dev/branches/solr2193 
> The main goal here is to prevent solr from closing the IW and use IW#commit 
> instead. AFAIK the main issues here are:
> The update handler needs an overhaul.
> A few goals I think we might want to look at:
> 1. Expose the SolrIndexWriter in the api or add the proper abstractions to 
> get done what we now do with special casing:
> 2. Stop closing the IndexWriter and start using commit (still lazy IW init 
> though).
> 3. Drop iwAccess, iwCommit locks and sync mostly at the Lucene level.
> 4. Address the current issues we face because multiple original/'reloaded' 
> cores can have a different IndexWriter on the same index.
> Eventually this is a preparation for NRT support in Solr which I will create 
> a followup issue for.

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