[jira] [Commented] (CASSANDRA-12203) AssertionError on compaction after upgrade (2.1.9 -> 3.7)
[ https://issues.apache.org/jira/browse/CASSANDRA-12203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15383633#comment-15383633 ] Roman S. Borschel commented on CASSANDRA-12203: --- Of course, issue description updated. > AssertionError on compaction after upgrade (2.1.9 -> 3.7) > - > > Key: CASSANDRA-12203 > URL: https://issues.apache.org/jira/browse/CASSANDRA-12203 > Project: Cassandra > Issue Type: Bug > Components: Compaction > Environment: Cassandra 3.7 (upgrade from 2.1.9) > Java version "1.8.0_91" > Ubuntu 14.04.4 LTS (GNU/Linux 3.13.0-83-generic x86_64) >Reporter: Roman S. Borschel > Fix For: 3.x > > > After upgrading a Cassandra cluster from 2.1.9 to 3.7, one column family > (using SizeTieredCompaction) repeatedly and continuously failed compaction > (and thus also repair) across the cluster, with all nodes producing the > following errors in the logs: > {noformat} > 016-07-14T09:29:47.96855 |srv=cassandra|ERROR: Exception in thread > Thread[CompactionExecutor:3,1,main] > 2016-07-14T09:29:47.96858 |srv=cassandra|java.lang.AssertionError: null > 2016-07-14T09:29:47.96859 |srv=cassandra| at > org.apache.cassandra.db.UnfilteredDeserializer$OldFormatDeserializer$TombstoneTracker.openNew(UnfilteredDeserializer.java:650) > ~[apache-cassandra-3.7.jar:3.7] > 2016-07-14T09:29:47.96860 |srv=cassandra| at > org.apache.cassandra.db.UnfilteredDeserializer$OldFormatDeserializer$UnfilteredIterator.hasNext(UnfilteredDeserializer.java:423) > ~[apache-cassandra-3.7.jar:3.7] > 2016-07-14T09:29:47.96860 |srv=cassandra| at > org.apache.cassandra.db.UnfilteredDeserializer$OldFormatDeserializer.hasNext(UnfilteredDeserializer.java:298) > ~[apache-cassandra-3.7.jar:3.7] > 2016-07-14T09:29:47.96860 |srv=cassandra| at > org.apache.cassandra.io.sstable.SSTableSimpleIterator$OldFormatIterator.readStaticRow(SSTableSimpleIterator.java:133) > ~[apache-cassandra-3.7.jar:3.7] > 2016-07-14T09:29:47.96861 |srv=cassandra| at > org.apache.cassandra.io.sstable.SSTableIdentityIterator.(SSTableIdentityIterator.java:57) > ~[apache-cassandra-3.7.jar:3.7] > 2016-07-14T09:29:47.96861 |srv=cassandra| at > org.apache.cassandra.io.sstable.format.big.BigTableScanner$KeyScanningIterator$1.initializeIterator(BigTableScanner.java:334) > ~[apache-cassandra-3.7.jar:3.7] > 2016-07-14T09:29:47.96862 |srv=cassandra| at > org.apache.cassandra.db.rows.LazilyInitializedUnfilteredRowIterator.maybeInit(LazilyInitializedUnfilteredRowIterator.java:48) > ~[apache-cassandra-3.7.jar:3.7] > 2016-07-14T09:29:47.96862 |srv=cassandra| at > org.apache.cassandra.db.rows.LazilyInitializedUnfilteredRowIterator.isReverseOrder(LazilyInitializedUnfilteredRowIterator.java:70) > ~[apache-cassandra-3.7.jar:3.7] > 2016-07-14T09:29:47.96863 |srv=cassandra| at > org.apache.cassandra.db.partitions.UnfilteredPartitionIterators$1.reduce(UnfilteredPartitionIterators.java:109) > ~[apache-cassandra-3.7.jar:3.7] > 2016-07-14T09:29:47.96863 |srv=cassandra| at > org.apache.cassandra.db.partitions.UnfilteredPartitionIterators$1.reduce(UnfilteredPartitionIterators.java:100) > ~[apache-cassandra-3.7.jar:3.7] > 2016-07-14T09:29:47.96864 |srv=cassandra| at > org.apache.cassandra.utils.MergeIterator$Candidate.consume(MergeIterator.java:408) > ~[apache-cassandra-3.7.jar:3.7] > 2016-07-14T09:29:47.96864 |srv=cassandra| at > org.apache.cassandra.utils.MergeIterator$ManyToOne.consume(MergeIterator.java:203) > ~[apache-cassandra-3.7.jar:3.7] > 2016-07-14T09:29:47.96865 |srv=cassandra| at > org.apache.cassandra.utils.MergeIterator$ManyToOne.computeNext(MergeIterator.java:156) > ~[apache-cassandra-3.7.jar:3.7] > 2016-07-14T09:29:47.96865 |srv=cassandra| at > org.apache.cassandra.utils.AbstractIterator.hasNext(AbstractIterator.java:47) > ~[apache-cassandra-3.7.jar:3.7] > 2016-07-14T09:29:47.96866 |srv=cassandra| at > org.apache.cassandra.db.partitions.UnfilteredPartitionIterators$2.hasNext(UnfilteredPartitionIterators.java:150) > ~[apache-cassandra-3.7.jar:3.7] > 2016-07-14T09:29:47.96866 |srv=cassandra| at > org.apache.cassandra.db.transform.BasePartitions.hasNext(BasePartitions.java:72) > ~[apache-cassandra-3.7.jar:3.7] > 2016-07-14T09:29:47.96867 |srv=cassandra| at > org.apache.cassandra.db.compaction.CompactionIterator.hasNext(CompactionIterator.java:226) > ~[apache-cassandra-3.7.jar:3.7] > 2016-07-14T09:29:47.96867 |srv=cassandra| at > org.apache.cassandra.db.compaction.CompactionTask.runMayThrow(CompactionTask.java:182) > ~[apache-cassandra-3.7.jar:3.7] > 2016-07-14T09:29:47.96867 |srv=cassandra| at > org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) > ~[apache-cassandra-3.7.jar:3.7] > 2016-07-14T09:29:47.96868 |srv=cassandra| at >
[jira] [Updated] (CASSANDRA-12203) AssertionError on compaction after upgrade (2.1.9 -> 3.7)
[ https://issues.apache.org/jira/browse/CASSANDRA-12203?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Roman S. Borschel updated CASSANDRA-12203: -- Description: After upgrading a Cassandra cluster from 2.1.9 to 3.7, one column family (using SizeTieredCompaction) repeatedly and continuously failed compaction (and thus also repair) across the cluster, with all nodes producing the following errors in the logs: {noformat} 016-07-14T09:29:47.96855 |srv=cassandra|ERROR: Exception in thread Thread[CompactionExecutor:3,1,main] 2016-07-14T09:29:47.96858 |srv=cassandra|java.lang.AssertionError: null 2016-07-14T09:29:47.96859 |srv=cassandra| at org.apache.cassandra.db.UnfilteredDeserializer$OldFormatDeserializer$TombstoneTracker.openNew(UnfilteredDeserializer.java:650) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96860 |srv=cassandra| at org.apache.cassandra.db.UnfilteredDeserializer$OldFormatDeserializer$UnfilteredIterator.hasNext(UnfilteredDeserializer.java:423) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96860 |srv=cassandra| at org.apache.cassandra.db.UnfilteredDeserializer$OldFormatDeserializer.hasNext(UnfilteredDeserializer.java:298) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96860 |srv=cassandra| at org.apache.cassandra.io.sstable.SSTableSimpleIterator$OldFormatIterator.readStaticRow(SSTableSimpleIterator.java:133) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96861 |srv=cassandra| at org.apache.cassandra.io.sstable.SSTableIdentityIterator.(SSTableIdentityIterator.java:57) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96861 |srv=cassandra| at org.apache.cassandra.io.sstable.format.big.BigTableScanner$KeyScanningIterator$1.initializeIterator(BigTableScanner.java:334) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96862 |srv=cassandra| at org.apache.cassandra.db.rows.LazilyInitializedUnfilteredRowIterator.maybeInit(LazilyInitializedUnfilteredRowIterator.java:48) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96862 |srv=cassandra| at org.apache.cassandra.db.rows.LazilyInitializedUnfilteredRowIterator.isReverseOrder(LazilyInitializedUnfilteredRowIterator.java:70) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96863 |srv=cassandra| at org.apache.cassandra.db.partitions.UnfilteredPartitionIterators$1.reduce(UnfilteredPartitionIterators.java:109) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96863 |srv=cassandra| at org.apache.cassandra.db.partitions.UnfilteredPartitionIterators$1.reduce(UnfilteredPartitionIterators.java:100) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96864 |srv=cassandra| at org.apache.cassandra.utils.MergeIterator$Candidate.consume(MergeIterator.java:408) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96864 |srv=cassandra| at org.apache.cassandra.utils.MergeIterator$ManyToOne.consume(MergeIterator.java:203) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96865 |srv=cassandra| at org.apache.cassandra.utils.MergeIterator$ManyToOne.computeNext(MergeIterator.java:156) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96865 |srv=cassandra| at org.apache.cassandra.utils.AbstractIterator.hasNext(AbstractIterator.java:47) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96866 |srv=cassandra| at org.apache.cassandra.db.partitions.UnfilteredPartitionIterators$2.hasNext(UnfilteredPartitionIterators.java:150) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96866 |srv=cassandra| at org.apache.cassandra.db.transform.BasePartitions.hasNext(BasePartitions.java:72) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96867 |srv=cassandra| at org.apache.cassandra.db.compaction.CompactionIterator.hasNext(CompactionIterator.java:226) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96867 |srv=cassandra| at org.apache.cassandra.db.compaction.CompactionTask.runMayThrow(CompactionTask.java:182) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96867 |srv=cassandra| at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96868 |srv=cassandra| at org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:82) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96868 |srv=cassandra| at org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:60) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96869 |srv=cassandra| at org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionCandidate.run(CompactionManager.java:264) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96870 |srv=cassandra| at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[na:1.8.0_91] 2016-07-14T09:29:47.96870 |srv=cassandra| at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_91]
[jira] [Updated] (CASSANDRA-12203) AssertionError on compaction after upgrade (2.1.9 -> 3.7)
[ https://issues.apache.org/jira/browse/CASSANDRA-12203?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Roman S. Borschel updated CASSANDRA-12203: -- Description: After upgrading a Cassandra cluster from 2.1.9 to 3.7, one column family (using SizeTieredCompaction) repeatedly and continuously failed compaction (and thus also repair) across the cluster, with all nodes producing the following errors in the logs: {noformat} 016-07-14T09:29:47.96855 |srv=cassandra|ERROR: Exception in thread Thread[CompactionExecutor:3,1,main] 2016-07-14T09:29:47.96858 |srv=cassandra|java.lang.AssertionError: null 2016-07-14T09:29:47.96859 |srv=cassandra| at org.apache.cassandra.db.UnfilteredDeserializer$OldFormatDeserializer$TombstoneTracker.openNew(UnfilteredDeserializer.java:650) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96860 |srv=cassandra| at org.apache.cassandra.db.UnfilteredDeserializer$OldFormatDeserializer$UnfilteredIterator.hasNext(UnfilteredDeserializer.java:423) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96860 |srv=cassandra| at org.apache.cassandra.db.UnfilteredDeserializer$OldFormatDeserializer.hasNext(UnfilteredDeserializer.java:298) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96860 |srv=cassandra| at org.apache.cassandra.io.sstable.SSTableSimpleIterator$OldFormatIterator.readStaticRow(SSTableSimpleIterator.java:133) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96861 |srv=cassandra| at org.apache.cassandra.io.sstable.SSTableIdentityIterator.(SSTableIdentityIterator.java:57) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96861 |srv=cassandra| at org.apache.cassandra.io.sstable.format.big.BigTableScanner$KeyScanningIterator$1.initializeIterator(BigTableScanner.java:334) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96862 |srv=cassandra| at org.apache.cassandra.db.rows.LazilyInitializedUnfilteredRowIterator.maybeInit(LazilyInitializedUnfilteredRowIterator.java:48) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96862 |srv=cassandra| at org.apache.cassandra.db.rows.LazilyInitializedUnfilteredRowIterator.isReverseOrder(LazilyInitializedUnfilteredRowIterator.java:70) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96863 |srv=cassandra| at org.apache.cassandra.db.partitions.UnfilteredPartitionIterators$1.reduce(UnfilteredPartitionIterators.java:109) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96863 |srv=cassandra| at org.apache.cassandra.db.partitions.UnfilteredPartitionIterators$1.reduce(UnfilteredPartitionIterators.java:100) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96864 |srv=cassandra| at org.apache.cassandra.utils.MergeIterator$Candidate.consume(MergeIterator.java:408) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96864 |srv=cassandra| at org.apache.cassandra.utils.MergeIterator$ManyToOne.consume(MergeIterator.java:203) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96865 |srv=cassandra| at org.apache.cassandra.utils.MergeIterator$ManyToOne.computeNext(MergeIterator.java:156) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96865 |srv=cassandra| at org.apache.cassandra.utils.AbstractIterator.hasNext(AbstractIterator.java:47) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96866 |srv=cassandra| at org.apache.cassandra.db.partitions.UnfilteredPartitionIterators$2.hasNext(UnfilteredPartitionIterators.java:150) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96866 |srv=cassandra| at org.apache.cassandra.db.transform.BasePartitions.hasNext(BasePartitions.java:72) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96867 |srv=cassandra| at org.apache.cassandra.db.compaction.CompactionIterator.hasNext(CompactionIterator.java:226) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96867 |srv=cassandra| at org.apache.cassandra.db.compaction.CompactionTask.runMayThrow(CompactionTask.java:182) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96867 |srv=cassandra| at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96868 |srv=cassandra| at org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:82) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96868 |srv=cassandra| at org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:60) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96869 |srv=cassandra| at org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionCandidate.run(CompactionManager.java:264) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96870 |srv=cassandra| at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[na:1.8.0_91] 2016-07-14T09:29:47.96870 |srv=cassandra| at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_91]
[jira] [Created] (CASSANDRA-12203) AssertionError on compaction after upgrade (2.1.9 -> 3.7)
Roman S. Borschel created CASSANDRA-12203: - Summary: AssertionError on compaction after upgrade (2.1.9 -> 3.7) Key: CASSANDRA-12203 URL: https://issues.apache.org/jira/browse/CASSANDRA-12203 Project: Cassandra Issue Type: Bug Components: Compaction Environment: Cassandra 3.7 (upgrade from 2.1.9) Java version "1.8.0_91" Ubuntu 14.04.4 LTS (GNU/Linux 3.13.0-83-generic x86_64) Reporter: Roman S. Borschel After upgrading a Cassandra cluster from 2.1.9 to 3.7, one column family (using SizeTieredCompaction) repeatedly and continuously fails compaction (and thus also repair) across the cluster, with all nodes producing the following errors in the logs: {noformat} 016-07-14T09:29:47.96855 |srv=cassandra|ERROR: Exception in thread Thread[CompactionExecutor:3,1,main] 2016-07-14T09:29:47.96858 |srv=cassandra|java.lang.AssertionError: null 2016-07-14T09:29:47.96859 |srv=cassandra| at org.apache.cassandra.db.UnfilteredDeserializer$OldFormatDeserializer$TombstoneTracker.openNew(UnfilteredDeserializer.java:650) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96860 |srv=cassandra| at org.apache.cassandra.db.UnfilteredDeserializer$OldFormatDeserializer$UnfilteredIterator.hasNext(UnfilteredDeserializer.java:423) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96860 |srv=cassandra| at org.apache.cassandra.db.UnfilteredDeserializer$OldFormatDeserializer.hasNext(UnfilteredDeserializer.java:298) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96860 |srv=cassandra| at org.apache.cassandra.io.sstable.SSTableSimpleIterator$OldFormatIterator.readStaticRow(SSTableSimpleIterator.java:133) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96861 |srv=cassandra| at org.apache.cassandra.io.sstable.SSTableIdentityIterator.(SSTableIdentityIterator.java:57) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96861 |srv=cassandra| at org.apache.cassandra.io.sstable.format.big.BigTableScanner$KeyScanningIterator$1.initializeIterator(BigTableScanner.java:334) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96862 |srv=cassandra| at org.apache.cassandra.db.rows.LazilyInitializedUnfilteredRowIterator.maybeInit(LazilyInitializedUnfilteredRowIterator.java:48) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96862 |srv=cassandra| at org.apache.cassandra.db.rows.LazilyInitializedUnfilteredRowIterator.isReverseOrder(LazilyInitializedUnfilteredRowIterator.java:70) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96863 |srv=cassandra| at org.apache.cassandra.db.partitions.UnfilteredPartitionIterators$1.reduce(UnfilteredPartitionIterators.java:109) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96863 |srv=cassandra| at org.apache.cassandra.db.partitions.UnfilteredPartitionIterators$1.reduce(UnfilteredPartitionIterators.java:100) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96864 |srv=cassandra| at org.apache.cassandra.utils.MergeIterator$Candidate.consume(MergeIterator.java:408) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96864 |srv=cassandra| at org.apache.cassandra.utils.MergeIterator$ManyToOne.consume(MergeIterator.java:203) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96865 |srv=cassandra| at org.apache.cassandra.utils.MergeIterator$ManyToOne.computeNext(MergeIterator.java:156) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96865 |srv=cassandra| at org.apache.cassandra.utils.AbstractIterator.hasNext(AbstractIterator.java:47) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96866 |srv=cassandra| at org.apache.cassandra.db.partitions.UnfilteredPartitionIterators$2.hasNext(UnfilteredPartitionIterators.java:150) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96866 |srv=cassandra| at org.apache.cassandra.db.transform.BasePartitions.hasNext(BasePartitions.java:72) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96867 |srv=cassandra| at org.apache.cassandra.db.compaction.CompactionIterator.hasNext(CompactionIterator.java:226) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96867 |srv=cassandra| at org.apache.cassandra.db.compaction.CompactionTask.runMayThrow(CompactionTask.java:182) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96867 |srv=cassandra| at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96868 |srv=cassandra| at org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:82) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96868 |srv=cassandra| at org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:60) ~[apache-cassandra-3.7.jar:3.7] 2016-07-14T09:29:47.96869 |srv=cassandra| at