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https://issues.apache.org/jira/browse/GEODE-2776?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Anilkumar Gingade resolved GEODE-2776.
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Resolution: Fixed
> The version tag on client event is not updated when an entry is added to
> server using load operation.
> -----------------------------------------------------------------------------------------------------
>
> Key: GEODE-2776
> URL: https://issues.apache.org/jira/browse/GEODE-2776
> Project: Geode
> Issue Type: Bug
> Components: regions
> Reporter: Anilkumar Gingade
> Assignee: Anilkumar Gingade
> Fix For: 1.2.0
>
>
> When client does a get() which results in adding an entry by calling loader
> on server side, the client event returned back is not updated with the
> version tag that is created with the new entry on server. This results in
> client having a different version tag than the server side entry. If client
> has registered event, and is concurrently updating the entry (from get() call
> and an register-event from server), it could result in data consistency
> between client and server.
> Scenario 1:
> On Server invalidate happens, and the event is added to client queue.
> Client does get()
> On Server, the get() triggers load + put on server. And the response is sent
> back.
> Client gets the result from get() (which is newer) and applies to its cache.
> Client gets invalid event (older than get), and it applies the event to the
> cache (this is supposed to be conflated, but due to this bug its not
> conflated).
> At the end server has valid entry in the cache but client has invalid entry.
> On Server: INVALID (First), Get(From Client, LOAD+PUT) (later)
> On Client: GET(), PUT using Get Response(), INVALID (old)
> Scenario 2:
> Client does get()
> On Server, the get() triggers load + put on server. And the response is sent
> back.
> On Server invalidate happens, and the event is added to client queue.
> Client gets invalid event, and it applies the event to the cache.
> Client gets the result from get() (which is older than invalidate) and
> applies to its cache (this is supposed to be conflated, but due to this bug
> its not conflated).
> At the end server has invalid entry in the cache but client has valid entry
> (old value).
> On Server: Get(From Client, LOAD+PUT), INVALID (later)
> On Client: GET() (new), INVALID (old), PUT using Get Response().
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