Hi,every one: I have a 12 nodes C* 2.0.9 cluster for titan.I found some error when doing compaction,the exception stack:
java.lang.AssertionError: Added column does not sort as the last column at org.apache.cassandra.db.ArrayBackedSortedColumns.addColumn(ArrayBackedSortedColumns.java:115) at org.apache.cassandra.db.ColumnFamily.addColumn(ColumnFamily.java:116) at org.apache.cassandra.db.ColumnFamily.addAtom(ColumnFamily.java:150) at org.apache.cassandra.io.sstable.SSTableIdentityIterator.getColumnFamilyWithColumns(SSTableIdentityIterator.java:186) at org.apache.cassandra.db.compaction.PrecompactedRow.merge(PrecompactedRow.java:98) at org.apache.cassandra.db.compaction.PrecompactedRow.<init>(PrecompactedRow.java:85) at org.apache.cassandra.db.compaction.CompactionController.getCompactedRow(CompactionController.java:196) at org.apache.cassandra.db.compaction.CompactionIterable$Reducer.getReduced(CompactionIterable.java:74) at org.apache.cassandra.db.compaction.CompactionIterable$Reducer.getReduced(CompactionIterable.java:55) at org.apache.cassandra.utils.MergeIterator$ManyToOne.consume(MergeIterator.java:115) at org.apache.cassandra.utils.MergeIterator$ManyToOne.computeNext(MergeIterator.java:98) at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143) at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138) at org.apache.cassandra.db.compaction.CompactionTask.runWith(CompactionTask.java:154) at org.apache.cassandra.io.util.DiskAwareRunnable.runMayThrow(DiskAwareRunnable.java:48) at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) at org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:60) at org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:59) at org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionTask.run(CompactionManager.java:198) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744) I found en issue CASSANDRA-7470 <https://issues.apache.org/jira/browse/CASSANDRA-7470> ,but it's about CQL. So why this Error? -------------------------------------- Ranger Tsao
