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https://issues.apache.org/jira/browse/IGNITE-3464?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dmitriy Pavlov updated IGNITE-3464:
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Fix Version/s: (was: 2.6)
2.7
> Possible race between partition exchange and prepare/finish requests
> --------------------------------------------------------------------
>
> Key: IGNITE-3464
> URL: https://issues.apache.org/jira/browse/IGNITE-3464
> Project: Ignite
> Issue Type: Bug
> Components: cache
> Affects Versions: ignite-1.4
> Reporter: Alexey Goncharuk
> Assignee: Vitaliy Biryukov
> Priority: Major
> Fix For: 2.7
>
>
> Consider the following scenario:
> Two nodes A (coordinator), B. Node C is joining the grid. Current topology
> version is 2.
> - Node A starts a transaction on version 2 and sends a prepare request to
> node B
> - Discovery event happens on node A. Exchange future is created, captures
> the transaction and waits for this transaction to finish.
> - Discovery event happens on node B. Exchange future is created, but since
> there is no transaction on this node (the request has not been processed
> yet), partition release future is completed and exchange waits for an ACK
> from coordinator.
> - Prepare request is processed on node B
> - Node A commits the transaction locally, partition release future is
> completed. Both finish request and exchange message are sent to the node B.
> - Node B processes the exchange message first and completes exchange.
> - Node C starts rebalancing from node B and acquires stale value of the key
> which was supposed to be updated in the transaction.
> - Node B processes finish request and commits the transaction.
> As a result, node B and C have different values stored in the cache.
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