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https://issues.apache.org/jira/browse/IGNITE-9731?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Anton Kalashnikov reassigned IGNITE-9731:
-----------------------------------------
Assignee: Anton Kalashnikov
> NPE is possible during WAL flushing
> -----------------------------------
>
> Key: IGNITE-9731
> URL: https://issues.apache.org/jira/browse/IGNITE-9731
> Project: Ignite
> Issue Type: Bug
> Reporter: Andrey Kuznetsov
> Assignee: Anton Kalashnikov
> Priority: Critical
> Fix For: 2.7
>
> Attachments: WalRolloverRecordLoggingTest.java
>
>
> {{FileWriteAheadLogManager.flush()}} seems to be not thread-safe anymore in
> master branch. The test attached produces the following NPE:
> {noformat}
> java.lang.NullPointerException
> at
> org.apache.ignite.internal.processors.cache.persistence.wal.FileWriteAheadLogManager$FileHandle.getSegmentId(FileWriteAheadLogManager.java:2371)
> at
> org.apache.ignite.internal.processors.cache.persistence.wal.FileWriteAheadLogManager$FileWriteHandle.needFsync(FileWriteAheadLogManager.java:2642)
> at
> org.apache.ignite.internal.processors.cache.persistence.wal.FileWriteAheadLogManager$FileWriteHandle.fsync(FileWriteAheadLogManager.java:2668)
> at
> org.apache.ignite.internal.processors.cache.persistence.wal.FileWriteAheadLogManager$FileWriteHandle.access$1900(FileWriteAheadLogManager.java:2445)
> at
> org.apache.ignite.internal.processors.cache.persistence.wal.FileWriteAheadLogManager.flush(FileWriteAheadLogManager.java:866)
> at
> org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager$Checkpointer.markCheckpointBegin(GridCacheDatabaseSharedManager.java:3633)
> at
> org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager$Checkpointer.doCheckpoint(GridCacheDatabaseSharedManager.java:3126)
> at
> org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager$Checkpointer.body(GridCacheDatabaseSharedManager.java:3025)
> at
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120)
> at java.lang.Thread.run(Thread.java:748)
> {noformat}
> This could be possibly brought by commit [1].
> [1]
> https://github.com/apache/ignite/commit/2f72fe758d4256c4eb4610e5922ad3d174b43dc5
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