Eric Falcao created CASSANDRA-5720:
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Summary: AssertionError in CompactionExecutor
Key: CASSANDRA-5720
URL: https://issues.apache.org/jira/browse/CASSANDRA-5720
Project: Cassandra
Issue Type: Bug
Components: Core
Affects Versions: 1.2.5
Environment: 4 nodes
RF 2
Reporter: Eric Falcao
Seeing this on all 4 of my nodes during a major compaction.
{code}
ERROR [CompactionExecutor:57927] 2013-07-03 13:41:27,591 CassandraDaemon.java
(line 175) Exception in thread Thread[CompactionExecutor:57927,1,RMI Runtime]
java.lang.AssertionError: originally calculated column size of 443395646 but
now it is 443395712
at
org.apache.cassandra.db.compaction.LazilyCompactedRow.write(LazilyCompactedRow.java:135)
at
org.apache.cassandra.io.sstable.SSTableWriter.append(SSTableWriter.java:160)
at
org.apache.cassandra.db.compaction.CompactionTask.runWith(CompactionTask.java:162)
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:58)
at
org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:60)
at
org.apache.cassandra.db.compaction.CompactionManager$6.runMayThrow(CompactionManager.java:355)
at
org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
{code}
A little bit about this CF. It stores data with a TTL of up to 30 days. These
rows are wide. We run major compactions to remove expired data. This has been
our setup for almost 2 years and this issue only started cropping up after
upgrading to 1.2.5 (from 1.1.5)
I've been running scrub in the meantime to remove expired data. Now, I'm ending
up with lots of similarly sized SSTables that C* is trying constantly to
compact. These minor compactions of the bigger SSTables are failing also.
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