[ https://issues.apache.org/jira/browse/CASSANDRA-10614?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Joshua McKenzie reassigned CASSANDRA-10614: ------------------------------------------- Assignee: T Jake Luciani > AsertionError while flushing memtables > -------------------------------------- > > Key: CASSANDRA-10614 > URL: https://issues.apache.org/jira/browse/CASSANDRA-10614 > Project: Cassandra > Issue Type: Bug > Components: Core, Local Write-Read Paths > Reporter: Tyler Hobbs > Assignee: T Jake Luciani > Priority: Critical > Fix For: 3.0.0 > > > While running mvbench against a single local node, I noticed this stacktrace > showing up multiple times in the logs: > {noformat} > ERROR 16:40:01 Exception in thread Thread[MemtableFlushWriter:1,5,main] > java.lang.AssertionError: null > at org.apache.cassandra.db.rows.Rows.collectStats(Rows.java:70) > ~[main/:na] > at > org.apache.cassandra.io.sstable.format.big.BigTableWriter$StatsCollector.applyToRow(BigTableWriter.java:197) > ~[main/:na] > at > org.apache.cassandra.db.transform.BaseRows.hasNext(BaseRows.java:116) > ~[main/:na] > at > org.apache.cassandra.db.transform.UnfilteredRows.isEmpty(UnfilteredRows.java:38) > ~[main/:na] > at > org.apache.cassandra.db.ColumnIndex.writeAndBuildIndex(ColumnIndex.java:49) > ~[main/:na] > at > org.apache.cassandra.io.sstable.format.big.BigTableWriter.append(BigTableWriter.java:149) > ~[main/:na] > at > org.apache.cassandra.io.sstable.SimpleSSTableMultiWriter.append(SimpleSSTableMultiWriter.java:45) > ~[main/:na] > at > org.apache.cassandra.io.sstable.SSTableTxnWriter.append(SSTableTxnWriter.java:52) > ~[main/:na] > at > org.apache.cassandra.db.Memtable$FlushRunnable.writeSortedContents(Memtable.java:389) > ~[main/:na] > at > org.apache.cassandra.db.Memtable$FlushRunnable.runMayThrow(Memtable.java:352) > ~[main/:na] > at > org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) > ~[main/:na] > at > com.google.common.util.concurrent.MoreExecutors$DirectExecutorService.execute(MoreExecutors.java:299) > ~[guava-18.0.jar:na] > at > org.apache.cassandra.db.ColumnFamilyStore$Flush.run(ColumnFamilyStore.java:1037) > ~[main/:na] > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) > ~[na:1.8.0_45] > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) > ~[na:1.8.0_45] > at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_45] > {noformat} > To reproduce, run mvbench with the regular schema and the following arguments: > {noformat} > mvn exec:java -Dexec.args="--num-users 100000 --num-songs 1000000 > --num-artists 10000 -n 500000 --endpoint 127.0.0.1" > {noformat} -- This message was sent by Atlassian JIRA (v6.3.4#6332)