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From "Roman Kondakov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (IGNITE-10241) MVCC TX: orphaned remote transactions
Date Wed, 19 Dec 2018 15:41:00 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-10241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Roman Kondakov updated IGNITE-10241:
------------------------------------
    Labels: failover mvcc_stabilization_stage_1  (was: )

> MVCC TX: orphaned remote transactions
> -------------------------------------
>
>                 Key: IGNITE-10241
>                 URL: https://issues.apache.org/jira/browse/IGNITE-10241
>             Project: Ignite
>          Issue Type: Bug
>          Components: mvcc
>            Reporter: Igor Seliverstov
>            Assignee: Igor Seliverstov
>            Priority: Major
>              Labels: failover, mvcc_stabilization_stage_1
>             Fix For: 2.8
>
>
> {{*CacheMvccPartitionedSqlCoordinatorFailoverTest#testUpdate_N_Objects_ClientServer_Backups2_Sql*
occasionally fails with following error:}}
> {code:java}
> [2018-11-13 15:03:44,240][ERROR][sys-#19392%mvcc.CacheMvccPartitionedSqlCoordinatorFailoverTest0%][GridDhtPartitionsExchangeFuture]
Failed to notify listener: o.a.i.i.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture$2@22ae2fbd
> java.lang.ClassCastException: org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtTxRemote
cannot be cast to org.apache.ignite.internal.processors.cache.distributed.near.GridNearTxLocal
>  at org.apache.ignite.internal.processors.cache.transactions.IgniteTxManager.rollbackMvccTxOnCoordinatorChange(IgniteTxManager.java:327)
>  at org.apache.ignite.internal.processors.cache.mvcc.MvccProcessorImpl.onExchangeDone(MvccProcessorImpl.java:394)
>  at org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.onDone(GridDhtPartitionsExchangeFuture.java:2095)
>  at org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.finishExchangeOnCoordinator(GridDhtPartitionsExchangeFuture.java:3391)
>  at org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.onAllReceived(GridDhtPartitionsExchangeFuture.java:3157)
>  at org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.processSingleMessage(GridDhtPartitionsExchangeFuture.java:2773)
>  at org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.access$100(GridDhtPartitionsExchangeFuture.java:139)
>  at org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture$2.apply(GridDhtPartitionsExchangeFuture.java:2578)
>  at org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture$2.apply(GridDhtPartitionsExchangeFuture.java:2566)
>  at org.apache.ignite.internal.util.future.GridFutureAdapter.notifyListener(GridFutureAdapter.java:395)
>  at org.apache.ignite.internal.util.future.GridFutureAdapter.listen(GridFutureAdapter.java:355)
>  at org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.onReceiveSingleMessage(GridDhtPartitionsExchangeFuture.java:2566)
>  at org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.processSinglePartitionUpdate(GridCachePartitionExchangeManager.java:1747)
>  at org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.access$1200(GridCachePartitionExchangeManager.java:144)
>  at org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$2.onMessage(GridCachePartitionExchangeManager.java:377)
>  at org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$2.onMessage(GridCachePartitionExchangeManager.java:335)
>  at org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$MessageHandler.apply(GridCachePartitionExchangeManager.java:3194)
>  at org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$MessageHandler.apply(GridCachePartitionExchangeManager.java:3173)
>  at org.apache.ignite.internal.processors.cache.GridCacheIoManager.processMessage(GridCacheIoManager.java:1054)
>  at org.apache.ignite.internal.processors.cache.GridCacheIoManager.onMessage0(GridCacheIoManager.java:579)
>  at org.apache.ignite.internal.processors.cache.GridCacheIoManager.handleMessage(GridCacheIoManager.java:378)
>  at org.apache.ignite.internal.processors.cache.GridCacheIoManager.handleMessage(GridCacheIoManager.java:304)
>  at org.apache.ignite.internal.processors.cache.GridCacheIoManager.access$100(GridCacheIoManager.java:100)
>  at org.apache.ignite.internal.processors.cache.GridCacheIoManager$1.onMessage(GridCacheIoManager.java:294)
>  at org.apache.ignite.internal.managers.communication.GridIoManager.invokeListener(GridIoManager.java:1568)
>  at org.apache.ignite.internal.managers.communication.GridIoManager.processRegularMessage0(GridIoManager.java:1196)
>  at org.apache.ignite.internal.managers.communication.GridIoManager.access$4200(GridIoManager.java:127)
>  at org.apache.ignite.internal.managers.communication.GridIoManager$9.run(GridIoManager.java:1092)
>  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
>  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
>  at java.lang.Thread.run(Thread.java:748)
> {code}
> Seems there is an issue with committing/rolling back transactions on topology changes
because we expect all transactions holding topology locks to be finished at this time. Mvcc
updates lock topology and produce remote txs at once, in other words existence of active
remote txs implies pending updates and locked topology which cannot be true because of being
finished exchange (all old txs are finished, all new txs are waiting for topology).
> Need to be investigated.



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