[CASSANDRA-8656] long-test LongLeveledCompactionStrategyTest flaps in 2.0

• Type: Improvement
• Status: Resolved
• Priority: Low
• Resolution: Fixed
• Fix Version/s: 2.0.16, 2.1.6, 2.2.0 rc1
• Component/s: Legacy/Testing
• Labels: test-failure
• Assignee: Stefania Alborghetti
• Reporter: Michael Shuler

Authors

Stefania Alborghetti

Reviewers

Marcus Eriksson

• Created: 20/Jan/15 21:19
• Updated: 16/Apr/19 09:31
• Resolved: 03/Jun/15 11:59

Description

LongLeveledCompactionStrategyTest periodically fails with:

    [junit] Testsuite: org.apache.cassandra.db.compaction.LongLeveledCompactionStrategyTest
    [junit] Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 54.412 sec
    [junit] 
    [junit] Testcase: testParallelLeveledCompaction(org.apache.cassandra.db.compaction.LongLeveledCompactionStrategyTest):      Caused an ERROR
    [junit] java.util.concurrent.ExecutionException: java.lang.RuntimeException: Last written key DecoratedKey(3133, 3133) >= current key DecoratedKey(313236, 313236) writing into build/test/cassandra/data/Keyspace1/StandardLeveled/Keyspace1-StandardLeveled-tmp-jb-304-Data.db
    [junit] java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.lang.RuntimeException: Last written key DecoratedKey(3133, 3133) >= current key DecoratedKey(313236, 313236) writing into build/test/cassandra/data/Keyspace1/StandardLeveled/Keyspace1-StandardLeveled-tmp-jb-304-Data.db
    [junit]     at org.apache.cassandra.utils.FBUtilities.waitOnFuture(FBUtilities.java:413)
    [junit]     at org.apache.cassandra.utils.FBUtilities.waitOnFutures(FBUtilities.java:402)
    [junit]     at org.apache.cassandra.db.compaction.LongLeveledCompactionStrategyTest.testParallelLeveledCompaction(LongLeveledCompactionStrategyTest.java:97)
    [junit] Caused by: java.util.concurrent.ExecutionException: java.lang.RuntimeException: Last written key DecoratedKey(3133, 3133) >= current key DecoratedKey(313236, 313236) writing into build/test/cassandra/data/Keyspace1/StandardLeveled/Keyspace1-StandardLeveled-tmp-jb-304-Data.db
    [junit]     at java.util.concurrent.FutureTask.report(FutureTask.java:122)
    [junit]     at java.util.concurrent.FutureTask.get(FutureTask.java:188)
    [junit]     at org.apache.cassandra.utils.FBUtilities.waitOnFuture(FBUtilities.java:409)
    [junit] Caused by: java.lang.RuntimeException: Last written key DecoratedKey(3133, 3133) >= current key DecoratedKey(313236, 313236) writing into build/test/cassandra/data/Keyspace1/StandardLeveled/Keyspace1-StandardLeveled-tmp-jb-304-Data.db
    [junit]     at org.apache.cassandra.io.sstable.SSTableWriter.beforeAppend(SSTableWriter.java:143)
    [junit]     at org.apache.cassandra.io.sstable.SSTableWriter.append(SSTableWriter.java:166)
    [junit]     at org.apache.cassandra.db.compaction.CompactionTask.runMayThrow(CompactionTask.java:167)
    [junit]     at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
    [junit]     at org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:60)
    [junit]     at org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:59)
    [junit]     at org.apache.cassandra.db.compaction.LongLeveledCompactionStrategyTest$1.run(LongLeveledCompactionStrategyTest.java:87)
    [junit]     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    [junit]     at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    [junit]     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    [junit]     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    [junit]     at java.lang.Thread.run(Thread.java:745)
    [junit] 
    [junit] 
    [junit] Test org.apache.cassandra.db.compaction.LongLeveledCompactionStrategyTest FAILED

I would guess the failure is 10-20% of the time, looping over the test repeatedly.

---

On the 2.1 branch, the failure is different, so perhaps this could also be updated.

    [junit] Testsuite: org.apache.cassandra.db.compaction.LongLeveledCompactionStrategyTest
    [junit] Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 7.04 sec
    [junit] 
    [junit] Testcase: testParallelLeveledCompaction(org.apache.cassandra.db.compaction.LongLeveledCompactionStrategyTest):      Caused an ERROR
    [junit] org.apache.cassandra.db.compaction.WrappingCompactionStrategy cannot be cast to org.apache.cassandra.db.compaction.LeveledCompactionStrategy
    [junit] java.lang.ClassCastException: org.apache.cassandra.db.compaction.WrappingCompactionStrategy cannot be cast to org.apache.cassandra.db.compaction.LeveledCompactionStrategy
    [junit]     at org.apache.cassandra.db.compaction.LongLeveledCompactionStrategyTest.testParallelLeveledCompaction(LongLeveledCompactionStrategyTest.java:45)
    [junit] 
    [junit] 
    [junit] Test org.apache.cassandra.db.compaction.LongLeveledCompactionStrategyTest FAILED

Issue Links

• is depended upon by: CASSANDRA-9093 testall should pass on trunk
• is duplicated by: CASSANDRA-9288 LongLeveledCompactionStrategyTest is failing
• links to: 2.0 patch (CASSANDRA-8739)
• links to: 2.0 patch proposed by Marcus