[infinispan-issues] [JBoss JIRA] Created: (ISPN-731) make state transfer and tx log draining serial

[Mircea Markus (JIRA)]

make state transfer and tx log draining serial
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                 Key: ISPN-731
                 URL: https://jira.jboss.org/browse/ISPN-731
             Project: Infinispan
          Issue Type: Bug
    Affects Versions: 4.1.0.Final
            Reporter: Mircea Markus
            Assignee: Manik Surtani
            Priority: Critical
             Fix For: 4.2.0.BETA1, 4.2.0.Final


{A,B,C, D}, num owners= 2. A's state is {(k,v)} and a transactions is prepared with {(k, otherValue)} on A.
B crashes.
two things happen with A's state: 
1. on C an thread pulls state from A
2. A sends transaction state to C on another thread

Whit the right timing:
- 2 executes first (tx log is drained)
- tx commits - this applies the changes on C as well 
- 1 executes last 
Data ends up inconsistent:
A's states is {(k, otherValue)} while C's state is  {(k,v)} 

State transfer and tx log needs to be sequential (not parallel). The easy way to achieve this is  to only do push, i.e. A sends the state and then drains tx log.
This can be reproduce by running ConcurrentNonOverlappingLeaveTest.testTransactional (fails aprox 1/5)


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