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https://issues.apache.org/jira/browse/CASSANDRA-10614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14982904#comment-14982904
]
Alan Boudreault edited comment on CASSANDRA-10614 at 10/30/15 5:17 PM:
-----------------------------------------------------------------------
I'm experiencing this crash during my tests, seems related to this patch. My
test is bootstraping a new node with MVs.
{code}
ERROR [MemtableFlushWriter:4] 2015-10-30 17:06:52,604 CassandraDaemon.java:195
- Exception in thread Thread[MemtableFlushWriter:4,5,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$StatsCollector.applyToRow(BigTableWriter.java:197)
~[main/:na]
at
org.apache.cassandra.db.transform.BaseRows.hasNext(BaseRows.java:116)
~[main/:na]
at
org.apache.cassandra.db.ColumnIndex$Builder.build(ColumnIndex.java:111)
~[main/:na]
at
org.apache.cassandra.db.ColumnIndex.writeAndBuildIndex(ColumnIndex.java:52)
~[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$Worker.run(ThreadPoolExecutor.java:617)
~[na:1.8.0_45]
at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_45]
ERROR 17:06:52 Exception in thread Thread[MemtableFlushWriter:4,5,main]
java.lang.AssertionError: null
at org.apache.cassandra.db.rows.Rows.collectStats(Rows.java:70)
~[main/:na]
at
org.apache.cassandra.io.sstable.format.big.BigTableWriter$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.ColumnIndex$Builder.build(ColumnIndex.java:111)
~[main/:na]
at
org.apache.cassandra.db.ColumnIndex.writeAndBuildIndex(ColumnIndex.java:52)
~[main/:na]
at
org.apache.cassandra.io.sstable.format.big.BigTableWriter.append(BigTableWriter.java:149)
~[main/:na]
at
org.apache.cassandra.io.sstable.SimpleSSTableMultiWriter.append(SimpleSSTableMultiWriter.java:45)
~[main/:na]
at
org.apache.cassandra.io.sstable.SSTableTxnWriter.append(SSTableTxnWriter.java:52)
~[main/:na]
at
org.apache.cassandra.db.Memtable$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]
{code}
was (Author: aboudreault):
I'm experiencing this crash during my tests, seems related to this patch:
{code}
ERROR [MemtableFlushWriter:4] 2015-10-30 17:06:52,604 CassandraDaemon.java:195
- Exception in thread Thread[MemtableFlushWriter:4,5,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$StatsCollector.applyToRow(BigTableWriter.java:197)
~[main/:na]
at
org.apache.cassandra.db.transform.BaseRows.hasNext(BaseRows.java:116)
~[main/:na]
at
org.apache.cassandra.db.ColumnIndex$Builder.build(ColumnIndex.java:111)
~[main/:na]
at
org.apache.cassandra.db.ColumnIndex.writeAndBuildIndex(ColumnIndex.java:52)
~[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$Worker.run(ThreadPoolExecutor.java:617)
~[na:1.8.0_45]
at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_45]
ERROR 17:06:52 Exception in thread Thread[MemtableFlushWriter:4,5,main]
java.lang.AssertionError: null
at org.apache.cassandra.db.rows.Rows.collectStats(Rows.java:70)
~[main/:na]
at
org.apache.cassandra.io.sstable.format.big.BigTableWriter$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.ColumnIndex$Builder.build(ColumnIndex.java:111)
~[main/:na]
at
org.apache.cassandra.db.ColumnIndex.writeAndBuildIndex(ColumnIndex.java:52)
~[main/:na]
at
org.apache.cassandra.io.sstable.format.big.BigTableWriter.append(BigTableWriter.java:149)
~[main/:na]
at
org.apache.cassandra.io.sstable.SimpleSSTableMultiWriter.append(SimpleSSTableMultiWriter.java:45)
~[main/:na]
at
org.apache.cassandra.io.sstable.SSTableTxnWriter.append(SSTableTxnWriter.java:52)
~[main/:na]
at
org.apache.cassandra.db.Memtable$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]
{code}
> AssertionError while flushing memtables
> ---------------------------------------
>
> Key: CASSANDRA-10614
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10614
> Project: Cassandra
> Issue Type: Bug
> Components: Local Write-Read Paths
> Reporter: Tyler Hobbs
> Assignee: Tyler Hobbs
> 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}
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