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https://issues.apache.org/jira/browse/IGNITE-8946?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16538491#comment-16538491
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Ivan Rakov commented on IGNITE-8946:
------------------------------------
[~ilantukh], can you please review the changes?
> AssertionError can occur during release of WAL history that was reserved for
> historical rebalance
> -------------------------------------------------------------------------------------------------
>
> Key: IGNITE-8946
> URL: https://issues.apache.org/jira/browse/IGNITE-8946
> Project: Ignite
> Issue Type: Bug
> Reporter: Ivan Rakov
> Assignee: Ivan Rakov
> Priority: Critical
> Fix For: 2.7
>
>
> Attempt to release WAL history after exchange may fail with AssertionError.
> Seems like we have a bug and may try to release more WAL segments than we
> have reserved:
> {noformat}
> java.lang.AssertionError: null
> at
> org.apache.ignite.internal.processors.cache.persistence.wal.SegmentReservationStorage.release(SegmentReservationStorage.java:54)
> - locked <0x1c12> (a
> org.apache.ignite.internal.processors.cache.persistence.wal.SegmentReservationStorage)
> at
> org.apache.ignite.internal.processors.cache.persistence.wal.FileWriteAheadLogManager.release(FileWriteAheadLogManager.java:862)
> at
> org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager.releaseHistoryForExchange(GridCacheDatabaseSharedManager.java:1691)
> - locked <0x1c17> (a
> org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.onDone(GridDhtPartitionsExchangeFuture.java:1751)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.finishExchangeOnCoordinator(GridDhtPartitionsExchangeFuture.java:2858)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.onAllReceived(GridDhtPartitionsExchangeFuture.java:2591)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.processSingleMessage(GridDhtPartitionsExchangeFuture.java:2283)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.access$100(GridDhtPartitionsExchangeFuture.java:129)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture$2.apply(GridDhtPartitionsExchangeFuture.java:2140)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture$2.apply(GridDhtPartitionsExchangeFuture.java:2128)
> at
> org.apache.ignite.internal.util.future.GridFutureAdapter.notifyListener(GridFutureAdapter.java:383)
> at
> org.apache.ignite.internal.util.future.GridFutureAdapter.listen(GridFutureAdapter.java:353)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.onReceiveSingleMessage(GridDhtPartitionsExchangeFuture.java:2128)
> at
> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.processSinglePartitionUpdate(GridCachePartitionExchangeManager.java:1580)
> at
> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.access$1000(GridCachePartitionExchangeManager.java:138)
> at
> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$2.onMessage(GridCachePartitionExchangeManager.java:345)
> at
> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$2.onMessage(GridCachePartitionExchangeManager.java:325)
> at
> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$MessageHandler.apply(GridCachePartitionExchangeManager.java:2848)
> at
> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$MessageHandler.apply(GridCachePartitionExchangeManager.java:2827)
> at
> org.apache.ignite.internal.processors.cache.GridCacheIoManager.processMessage(GridCacheIoManager.java:1056)
> at
> org.apache.ignite.internal.processors.cache.GridCacheIoManager.onMessage0(GridCacheIoManager.java:581)
> at
> org.apache.ignite.internal.processors.cache.GridCacheIoManager.handleMessage(GridCacheIoManager.java:380)
> at
> org.apache.ignite.internal.processors.cache.GridCacheIoManager.handleMessage(GridCacheIoManager.java:306)
> at
> org.apache.ignite.internal.processors.cache.GridCacheIoManager.access$100(GridCacheIoManager.java:101)
> at
> org.apache.ignite.internal.processors.cache.GridCacheIoManager$1.onMessage(GridCacheIoManager.java:295)
> at
> org.apache.ignite.internal.managers.communication.GridIoManager.invokeListener(GridIoManager.java:1556)
> at
> org.apache.ignite.internal.managers.communication.GridIoManager.processRegularMessage0(GridIoManager.java:1184)
> at
> org.apache.ignite.internal.managers.communication.GridIoManager.access$4200(GridIoManager.java:125)
> at
> org.apache.ignite.internal.managers.communication.GridIoManager$9.run(GridIoManager.java:1091)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> {noformat}
> More precise conditions to reprocude: TBD.
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