This is a good fix for the Lucene case.
We should still log a bug for AEQ because this isn't so good for other uses
of it who need to actually see each event.

--
Mike Stolz
Principal Engineer, GemFire Product Manager
Mobile: +1-631-835-4771

On Thu, Mar 16, 2017 at 1:21 PM, ASF GitHub Bot (JIRA) <j...@apache.org>
wrote:

>
>     [ https://issues.apache.org/jira/browse/GEODE-2674?page=
> com.atlassian.jira.plugin.system.issuetabpanels:comment-
> tabpanel&focusedCommentId=15928462#comment-15928462 ]
>
> ASF GitHub Bot commented on GEODE-2674:
> ---------------------------------------
>
> GitHub user upthewaterspout opened a pull request:
>
>     https://github.com/apache/geode/pull/427
>
>     GEODE-2674: Changing the lucene listener to get from the region
>
>     Rather than use the value that is in the queue, use the latest value
>     from the region to update the lucene index.
>
>     This ensures that even if the queue contains spurious events due to
>     retries or other issues, we put the correct value in the index.
>
>     This also potentially saves memory and disk space for the queue,
> because
>     the queue does not need to hold the value for the entry.
>
>     @boglesby @gesterzhou @jhuynh1 @ladyVader @nabarunnag
>
> You can merge this pull request into a Git repository by running:
>
>     $ git pull https://github.com/upthewaterspout/incubator-geode
> feature/GEODE-2674
>
> Alternatively you can review and apply these changes as the patch at:
>
>     https://github.com/apache/geode/pull/427.patch
>
> To close this pull request, make a commit to your master/trunk branch
> with (at least) the following in the commit message:
>
>     This closes #427
>
> ----
> commit 9f9439ab0ec6c2a0221e78aa5825e9a0759bac80
> Author: Dan Smith <upthewatersp...@apache.org>
> Date:   2017-03-15T20:23:20Z
>
>     GEODE-2674: Changing the lucene listener to fetch the value from the
> region
>
>     Rather than use the value that is in the queue, use the latest value
>     from the region to update the lucene index.
>
>     This ensures that even if the queue contains spurious events due to
>     retries or other issues, we put the correct value in the index.
>
>     This also potentially saves memory and disk space for the queue,
> because
>     the queue does not need to hold the value for the entry.
>
> ----
>
>
> > Lucene index is out of sync with data region due to retried event
> > -----------------------------------------------------------------
> >
> >                 Key: GEODE-2674
> >                 URL: https://issues.apache.org/jira/browse/GEODE-2674
> >             Project: Geode
> >          Issue Type: Bug
> >            Reporter: Dan Smith
> >            Assignee: Dan Smith
> >
> > We're seeing issues where the data in the lucene index does not match
> the data in a region. Here's what I see happening
> > # An accessor starts doing a put
> > # The put goes to the current primary
> > # Primary distributes the put to the secondary
> > # Primary closes it's cache
> > # New primary does a destroy on the same entry
> > # The accessor retries the put because the old primary closed the cache
> > # The retried put is added to the queue, after the destroy. But it is
> not added to the region, because the region detects that it is a retry.
> > # The lucene index applies the put. Now there is an extra entry in the
> index that is not in the region.
>
>
>
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