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https://issues.apache.org/jira/browse/IGNITE-10928?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16771753#comment-16771753
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Pavel Voronkin commented on IGNITE-10928:
-----------------------------------------

Looks good to me

> After huge load on cluster and restart with walCompactionEnabled=True errors 
> on log
> -----------------------------------------------------------------------------------
>
>                 Key: IGNITE-10928
>                 URL: https://issues.apache.org/jira/browse/IGNITE-10928
>             Project: Ignite
>          Issue Type: Bug
>          Components: data structures
>    Affects Versions: 2.5
>            Reporter: ARomantsov
>            Assignee: Sergey Antonov
>            Priority: Critical
>             Fix For: 2.8
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> {code:java}
>                 <property name="defaultDataRegionConfiguration">
>                     <bean 
> class="org.apache.ignite.configuration.DataRegionConfiguration">
>                         <property name="persistenceEnabled" value="true"/>
>                     </bean>
>                 </property>
>                 <!-- Enable compaction. -->
>                 <property name="walCompactionEnabled" value="true"/>
> {code}
> {code:java}
> [15:30:56,809][INFO][wal-file-compressor-%null%-1-#68][FileWriteAheadLogManager]
>  Stopping WAL iteration due to an exception: Failed to read WAL record at 
> position: 28310114 size: -1, ptr=FileWALPointer [idx=35, fileOff=28310114, 
> len=0]
> [15:30:56,811][INFO][wal-file-compressor-%null%-3-#70][FileWriteAheadLogManager]
>  Stopping WAL iteration due to an exception: Failed to read WAL record at 
> position: 28303753 size: -1, ptr=FileWALPointer [idx=36, fileOff=28303753, 
> len=0]
> [15:30:56,811][SEVERE][wal-file-compressor-%null%-1-#68][FileWriteAheadLogManager]
>  Compression of WAL segment [idx=35] was skipped due to unexpected error
> class org.apache.ignite.IgniteCheckedException: Failed to read WAL record at 
> position: 28310114 size: -1
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.AbstractWalRecordsIterator.handleRecordException(AbstractWalRecordsIterator.java:292)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.AbstractWalRecordsIterator.advanceRecord(AbstractWalRecordsIterator.java:258)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.AbstractWalRecordsIterator.advance(AbstractWalRecordsIterator.java:154)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.SingleSegmentLogicalRecordsIterator.advance(SingleSegmentLogicalRecordsIterator.java:119)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.AbstractWalRecordsIterator.onNext(AbstractWalRecordsIterator.java:123)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.AbstractWalRecordsIterator.onNext(AbstractWalRecordsIterator.java:52)
>         at 
> org.apache.ignite.internal.util.GridCloseableIteratorAdapter.nextX(GridCloseableIteratorAdapter.java:41)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.FileWriteAheadLogManager$FileCompressorWorker.compressSegmentToFile(FileWriteAheadLogManager.java:2039)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.FileWriteAheadLogManager$FileCompressorWorker.body0(FileWriteAheadLogManager.java:1974)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.FileWriteAheadLogManager$FileCompressorWorker.body(FileWriteAheadLogManager.java:1950)
>         at 
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
>         at java.lang.Thread.run(Thread.java:748)
> Caused by: class org.apache.ignite.IgniteCheckedException: Failed to read WAL 
> record at position: 28310114 size: -1
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.serializer.RecordV1Serializer.readWithCrc(RecordV1Serializer.java:394)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.serializer.RecordV2Serializer.readRecord(RecordV2Serializer.java:235)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.AbstractWalRecordsIterator.advanceRecord(AbstractWalRecordsIterator.java:243)
>         ... 10 more
> Caused by: java.nio.channels.ClosedByInterruptException
>         at 
> java.nio.channels.spi.AbstractInterruptibleChannel.end(AbstractInterruptibleChannel.java:202)
>         at sun.nio.ch.FileChannelImpl.read(FileChannelImpl.java:164)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.file.RandomAccessFileIO.read(RandomAccessFileIO.java:58)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.file.FileIODecorator.read(FileIODecorator.java:51)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.io.SimpleFileInput.ensure(SimpleFileInput.java:119)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.io.FileInput$Crc32CheckingFileInput.ensure(FileInput.java:89)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.io.FileInput$Crc32CheckingFileInput.readFully(FileInput.java:152)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.serializer.RecordV2Serializer$2.readWithHeaders(RecordV2Serializer.java:149)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.serializer.RecordV1Serializer.readWithCrc(RecordV1Serializer.java:373)
>         ... 12 more
>         Suppressed: class 
> org.apache.ignite.internal.processors.cache.persistence.wal.crc.IgniteDataIntegrityViolationException:
>  val: 1241861030 writtenCrc: 20736
>                 at 
> org.apache.ignite.internal.processors.cache.persistence.wal.io.FileInput$Crc32CheckingFileInput.close(FileInput.java:106)
>                 at 
> org.apache.ignite.internal.processors.cache.persistence.wal.serializer.RecordV1Serializer.readWithCrc(RecordV1Serializer.java:380)
>                 ... 12 more
> [15:30:56,811][SEVERE][wal-file-compressor-%null%-3-#70][FileWriteAheadLogManager]
>  Compression of WAL segment [idx=36] was skipped due to unexpected error
> class org.apache.ignite.IgniteCheckedException: Failed to read WAL record at 
> position: 28303753 size: -1
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.AbstractWalRecordsIterator.handleRecordException(AbstractWalRecordsIterator.java:292)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.AbstractWalRecordsIterator.advanceRecord(AbstractWalRecordsIterator.java:258)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.AbstractWalRecordsIterator.advance(AbstractWalRecordsIterator.java:154)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.SingleSegmentLogicalRecordsIterator.advance(SingleSegmentLogicalRecordsIterator.java:119)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.AbstractWalRecordsIterator.onNext(AbstractWalRecordsIterator.java:123)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.AbstractWalRecordsIterator.onNext(AbstractWalRecordsIterator.java:52)
>         at 
> org.apache.ignite.internal.util.GridCloseableIteratorAdapter.nextX(GridCloseableIteratorAdapter.java:41)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.FileWriteAheadLogManager$FileCompressorWorker.compressSegmentToFile(FileWriteAheadLogManager.java:2039)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.FileWriteAheadLogManager$FileCompressorWorker.body0(FileWriteAheadLogManager.java:1974)
>         at 
> org.apache.ignite.internal.processors.cache.persistence.wal.FileWriteAheadLogManager$FileCompressorWorker.body(FileWriteAheadLogManager.java:1950)
>         at 
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
>         at java.lang.Thread.run(Thread.java:748)
> Caused by: class org.apache.ignite.IgniteCheckedException: Failed to read WAL 
> record at position: 28303753 size: -1
> {code}



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