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https://issues.apache.org/jira/browse/IGNITE-2969?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15316905#comment-15316905
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Andrey Gura commented on IGNITE-2969:
-------------------------------------
I ran tests for deadlock detection with pessimistic and optimistic transactions
and can conlude that introducing of timeouts in {{GridDhtTxPrepareFuture}}
affects both transactions types and in some cases lead to problems with
transaction finishing.
Also transactions related benchmarks was run in order to check how additional
synchronization in {{GridNearOptimisticTxPrepareFuture}} will affect
performance. There is 2-5% perfromance drop on my lap top (ignite-1.6 vs
ignite-2969 branch).
> Optimistic transactions support in deadlock detection
> -----------------------------------------------------
>
> Key: IGNITE-2969
> URL: https://issues.apache.org/jira/browse/IGNITE-2969
> Project: Ignite
> Issue Type: Improvement
> Components: cache
> Reporter: Andrey Gura
> Assignee: Andrey Gura
> Fix For: 1.7
>
>
> Deadlock detection doesn't support optimistic transactions now. It should be
> implemented.
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