java.lang.AssertionError: null

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java.lang.AssertionError: null
at org.apache.cassandra.io.compress.CompressionMetadata$Chunk.(CompressionMetadata.java:475)
at org.apache.cassandra.io.compress.CompressionMetadata.chunkFor(CompressionMetadata.java:240)
at org.apache.cassandra.io.util.MmappedRegions.updateState(MmappedRegions.java:158)
at org.apache.cassandra.io.util.MmappedRegions.(MmappedRegions.java:73)
at org.apache.cassandra.io.util.MmappedRegions.(MmappedRegions.java:61)
at org.apache.cassandra.io.util.MmappedRegions.map(MmappedRegions.java:99)
at org.apache.cassandra.io.util.CompressedSegmentedFile.(CompressedSegmentedFile.java:44)
at org.apache.cassandra.io.util.CompressedSegmentedFile$Builder.complete(CompressedSegmentedFile.java:135)
at org.apache.cassandra.io.util.SegmentedFile$Builder.complete(SegmentedFile.java:181)
at org.apache.cassandra.io.util.SegmentedFile$Builder.buildData(SegmentedFile.java:192)
at org.apache.cassandra.io.sstable.format.big.BigTableWriter.openEarly(BigTableWriter.java:271)
at org.apache.cassandra.io.sstable.SSTableRewriter.maybeReopenEarly(SSTableRewriter.java:182)
at org.apache.cassandra.io.sstable.SSTableRewriter.append(SSTableRewriter.java:134)
at org.apache.cassandra.db.compaction.writers.DefaultCompactionWriter.realAppend(DefaultCompactionWriter.java:65)
at org.apache.cassandra.db.compaction.writers.CompactionAwareWriter.append(CompactionAwareWriter.java:141)
at org.apache.cassandra.db.compaction.CompactionTask.runMayThrow(CompactionTask.java:187)
at org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:82)
at org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:60)
at org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionCandidate.run(CompactionManager.java:264)
at java.util.concurrent.Executors$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)

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