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Date: Tue, 3 Jan 2012 17:02:39 +0000 (UTC)
From: "Pavel Yaskevich (Created) (JIRA)" <jira@apache.org>
To: commits@cassandra.apache.org
Message-ID: <408431697.879.1325610159196.JavaMail.tomcat@hel.zones.apache.org>
Subject: [jira] [Created] (CASSANDRA-3691) LeveledCompactionStrategy is
 broken because of generation pre-allocation in LeveledManifest.
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LeveledCompactionStrategy is broken because of generation pre-allocation in LeveledManifest.
--------------------------------------------------------------------------------------------

                 Key: CASSANDRA-3691
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3691
             Project: Cassandra
          Issue Type: Bug
          Components: Core
    Affects Versions: 1.1
            Reporter: Pavel Yaskevich


LeveledManifest constructor has the following code:

{code}
for (int i = 0; i < generations.length; i++)
{
    generations[i] = new ArrayList<SSTableReader>();
    lastCompactedKeys[i] = new DecoratedKey(cfs.partitioner.getMinimumToken(), null);
}
{code}

But in the DecoratedKey constructor we have:

{code}
assert token != null && key != null && key.remaining() > 0;
{code}

so when you tried to create a CF with LeveledCompressionStrategy that will result in 

{noformat}
java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
	at org.apache.cassandra.thrift.CassandraServer.applyMigrationOnStage(CassandraServer.java:865)
	at org.apache.cassandra.thrift.CassandraServer.system_add_keyspace(CassandraServer.java:953)
	at org.apache.cassandra.thrift.Cassandra$Processor$system_add_keyspace.process(Cassandra.java:4103)
	at org.apache.cassandra.thrift.Cassandra$Processor.process(Cassandra.java:3078)
	at org.apache.cassandra.thrift.CustomTThreadPoolServer$WorkerProcess.run(CustomTThreadPoolServer.java:188)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:680)
Caused by: java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
	at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
	at java.util.concurrent.FutureTask.get(FutureTask.java:83)
	at org.apache.cassandra.thrift.CassandraServer.applyMigrationOnStage(CassandraServer.java:857)
	... 7 more
Caused by: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
	at org.apache.cassandra.config.CFMetaData.createCompactionStrategyInstance(CFMetaData.java:770)
	at org.apache.cassandra.db.ColumnFamilyStore.<init>(ColumnFamilyStore.java:209)
	at org.apache.cassandra.db.ColumnFamilyStore.createColumnFamilyStore(ColumnFamilyStore.java:300)
	at org.apache.cassandra.db.ColumnFamilyStore.createColumnFamilyStore(ColumnFamilyStore.java:281)
	at org.apache.cassandra.db.Table.initCf(Table.java:339)
	at org.apache.cassandra.db.Table.<init>(Table.java:288)
	at org.apache.cassandra.db.Table.open(Table.java:117)
	at org.apache.cassandra.db.migration.AddKeyspace.applyModels(AddKeyspace.java:72)
	at org.apache.cassandra.db.migration.Migration.apply(Migration.java:156)
	at org.apache.cassandra.thrift.CassandraServer$2.call(CassandraServer.java:850)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
	... 3 more
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
	at org.apache.cassandra.config.CFMetaData.createCompactionStrategyInstance(CFMetaData.java:752)
	... 14 more
Caused by: java.lang.AssertionError
	at org.apache.cassandra.db.DecoratedKey.<init>(DecoratedKey.java:55)
	at org.apache.cassandra.db.compaction.LeveledManifest.<init>(LeveledManifest.java:79)
	at org.apache.cassandra.db.compaction.LeveledManifest.create(LeveledManifest.java:85)
	at org.apache.cassandra.db.compaction.LeveledCompactionStrategy.<init>(LeveledCompactionStrategy.java:74)
	... 19 more
ERROR 19:52:44,029 Fatal exception in thread Thread[MigrationStage:1,5,main]
{noformat}

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