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From "Nikolay Izhikov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-5712) Context switching for optimistic transactions
Date Wed, 26 Jul 2017 15:16:00 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-5712?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16101775#comment-16101775
] 

Nikolay Izhikov commented on IGNITE-5712:
-----------------------------------------

> Let's just add assert in TxManager.suspend() that tx is not system (assert !tx.system()).

OK.

> let's add such assert in TxManager.resumeTx.

It can't be done with simple assert since system transaction stored in map `ConcurrentMap<TxThreadKey,
IgniteInternalTx>`
So check would be something like this.
Is it OK?

{code:java}
        if (!sysThreadMap.isEmpty()) {
            for (GridCacheContext cacheCtx : cctx.cache().context().cacheContexts()) {
                if (!cacheCtx.systemTx())
                    continue;

                if (sysThreadMap.containsKey(new TxThreadKey(threadId, cacheCtx.cacheId())))
                    throw new IgniteCheckedException("Thread already start system transaction.");
            }
        }
{code}

> Context switching for optimistic transactions
> ---------------------------------------------
>
>                 Key: IGNITE-5712
>                 URL: https://issues.apache.org/jira/browse/IGNITE-5712
>             Project: Ignite
>          Issue Type: Sub-task
>          Components: general
>            Reporter: Alexey Kuznetsov
>            Assignee: Nikolay Izhikov
>
> Implement context switching between threads for optimistic transactions



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