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From "Igor Seliverstov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-11121) MVCC TX: AssertionError in discovery manager on BLT change.
Date Tue, 29 Jan 2019 10:54:00 GMT
Igor Seliverstov created IGNITE-11121:
-----------------------------------------

             Summary: MVCC TX: AssertionError in discovery manager on BLT change.
                 Key: IGNITE-11121
                 URL: https://issues.apache.org/jira/browse/IGNITE-11121
             Project: Ignite
          Issue Type: Bug
            Reporter: Igor Seliverstov
             Fix For: 2.8


The next exception occurred in logs on BLT change.
{noformat}
[12:11:36,912][SEVERE][sys-#87][GridClosureProcessor] Closure execution failed with error.
java.lang.AssertionError
        at org.apache.ignite.internal.managers.discovery.GridDiscoveryManager.node(GridDiscoveryManager.java:1794)
        at org.apache.ignite.internal.managers.communication.GridIoManager.sendToGridTopic(GridIoManager.java:1693)
        at org.apache.ignite.internal.processors.cache.transactions.IgniteTxManager$NodeFailureTimeoutObject.lambda$onTimeout0$16553d7$1(IgniteTxManager.java:2592)
        at org.apache.ignite.internal.util.future.GridFutureAdapter.notifyListener(GridFutureAdapter.java:399)
        at org.apache.ignite.internal.util.future.GridFutureAdapter.listen(GridFutureAdapter.java:354)
        at org.apache.ignite.internal.processors.cache.transactions.IgniteTxManager$NodeFailureTimeoutObject.onTimeout0(IgniteTxManager.java:2588)
        at org.apache.ignite.internal.processors.cache.transactions.IgniteTxManager$NodeFailureTimeoutObject.access$3300(IgniteTxManager.java:2505)
        at org.apache.ignite.internal.processors.cache.transactions.IgniteTxManager$NodeFailureTimeoutObject$1.run(IgniteTxManager.java:2623)
        at org.apache.ignite.internal.util.IgniteUtils.wrapThreadLoader(IgniteUtils.java:6874)
        at org.apache.ignite.internal.processors.closure.GridClosureProcessor$1.body(GridClosureProcessor.java:827)
        at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
{noformat}

>From the stack trace I see there is a node failure which causes transactions recovery
and uninitialized Mvcc coordinator (it means there are no server nodes, or there is a coordinatorAssignClosure
which returns no result, or a recovering node was not activated)

the scenario, where the exception may be observed:

* Start a cluster
* Load some data (from client node, the client node is shut down after that)
* Calculate hash
* Add new server node
* Change BLT
* Wait for rebalance
* Calculate new hash and check it is the same as previously calculated



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