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Tom van der Woerdt commented on CASSANDRA-12743: ------------------------------------------------ Found one on 3.11.1 as well: {code:java} ERROR [CompactionExecutor:1696] 2018-02-07 09:58:10,510 CassandraDaemon.java:228 - Exception in thread Thread[CompactionExecutor:1696,1,main] java.lang.AssertionError: null at org.apache.cassandra.io.compress.CompressionMetadata$Chunk.<init>(CompressionMetadata.java:474) ~[apache-cassandra-3.11.1.jar:3.11.1] at org.apache.cassandra.io.compress.CompressionMetadata.chunkFor(CompressionMetadata.java:239) ~[apache-cassandra-3.11.1.jar:3.11.1] at org.apache.cassandra.io.util.MmappedRegions.updateState(MmappedRegions.java:163) ~[apache-cassandra-3.11.1.jar:3.11.1] at org.apache.cassandra.io.util.MmappedRegions.<init>(MmappedRegions.java:73) ~[apache-cassandra-3.11.1.jar:3.11.1] at org.apache.cassandra.io.util.MmappedRegions.<init>(MmappedRegions.java:61) ~[apache-cassandra-3.11.1.jar:3.11.1] at org.apache.cassandra.io.util.MmappedRegions.map(MmappedRegions.java:104) ~[apache-cassandra-3.11.1.jar:3.11.1] at org.apache.cassandra.io.util.FileHandle$Builder.complete(FileHandle.java:362) ~[apache-cassandra-3.11.1.jar:3.11.1] at org.apache.cassandra.io.sstable.format.big.BigTableWriter.openEarly(BigTableWriter.java:290) ~[apache-cassandra-3.11.1.jar:3.11.1] at org.apache.cassandra.io.sstable.SSTableRewriter.maybeReopenEarly(SSTableRewriter.java:179) ~[apache-cassandra-3.11.1.jar:3.11.1] at org.apache.cassandra.io.sstable.SSTableRewriter.append(SSTableRewriter.java:134) ~[apache-cassandra-3.11.1.jar:3.11.1] at org.apache.cassandra.db.compaction.writers.MaxSSTableSizeWriter.realAppend(MaxSSTableSizeWriter.java:98) ~[apache-cassandra-3.11.1.jar:3.11.1] at org.apache.cassandra.db.compaction.writers.CompactionAwareWriter.append(CompactionAwareWriter.java:141) ~[apache-cassandra-3.11.1.jar:3.11.1] at org.apache.cassandra.db.compaction.CompactionTask.runMayThrow(CompactionTask.java:201) ~[apache-cassandra-3.11.1.jar:3.11.1] at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) ~[apache-cassandra-3.11.1.jar:3.11.1] at org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:85) ~[apache-cassandra-3.11.1.jar:3.11.1] at org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:61) ~[apache-cassandra-3.11.1.jar:3.11.1] at org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionCandidate.run(CompactionManager.java:268) ~[apache-cassandra-3.11.1.jar:3.11.1] at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) ~[na:1.8.0_152] at java.util.concurrent.FutureTask.run(Unknown Source) ~[na:1.8.0_152] at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [na:1.8.0_152] at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [na:1.8.0_152] at org.apache.cassandra.concurrent.NamedThreadFactory.lambda$threadLocalDeallocator$0(NamedThreadFactory.java:81) [apache-cassandra-3.11.1.jar:3.11.1] at java.lang.Thread.run(Unknown Source) ~[na:1.8.0_152] {code} > Assertion error while running compaction > ----------------------------------------- > > Key: CASSANDRA-12743 > URL: https://issues.apache.org/jira/browse/CASSANDRA-12743 > Project: Cassandra > Issue Type: Bug > Components: Compaction > Environment: unix > Reporter: Jean-Baptiste Le Duigou > Priority: Major > > While running compaction I run into an error sometimes : > {noformat} > nodetool compact > error: null > -- StackTrace -- > java.lang.AssertionError > at > org.apache.cassandra.io.compress.CompressionMetadata$Chunk.<init>(CompressionMetadata.java:463) > at > org.apache.cassandra.io.compress.CompressionMetadata.chunkFor(CompressionMetadata.java:228) > at > org.apache.cassandra.io.util.CompressedSegmentedFile.createMappedSegments(CompressedSegmentedFile.java:80) > at > org.apache.cassandra.io.util.CompressedPoolingSegmentedFile.<init>(CompressedPoolingSegmentedFile.java:38) > at > org.apache.cassandra.io.util.CompressedPoolingSegmentedFile$Builder.complete(CompressedPoolingSegmentedFile.java:101) > at > org.apache.cassandra.io.util.SegmentedFile$Builder.complete(SegmentedFile.java:198) > at > org.apache.cassandra.io.sstable.format.big.BigTableWriter.openEarly(BigTableWriter.java:315) > at > org.apache.cassandra.io.sstable.SSTableRewriter.maybeReopenEarly(SSTableRewriter.java:171) > at > org.apache.cassandra.io.sstable.SSTableRewriter.append(SSTableRewriter.java:116) > at > org.apache.cassandra.db.compaction.writers.DefaultCompactionWriter.append(DefaultCompactionWriter.java:64) > at > org.apache.cassandra.db.compaction.CompactionTask.runMayThrow(CompactionTask.java:184) > at > org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) > at > org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:74) > at > org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:59) > at > org.apache.cassandra.db.compaction.CompactionManager$8.runMayThrow(CompactionManager.java:599) > at > org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) > at > java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) > at java.util.concurrent.FutureTask.run(FutureTask.java:266) > 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} > Why is that happening? > Is there anyway to provide more details (e.g. which SSTable cannot be > compacted)? > We are using Cassandra 2.2.7 -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional 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