cannot alter compaction strategy to leveled
-------------------------------------------
Key: CASSANDRA-3774
URL: https://issues.apache.org/jira/browse/CASSANDRA-3774
Project: Cassandra
Issue Type: Bug
Reporter: Jackson Chung
this happens in trunk (probably trunk only)
when changing the compaction strategy to leveled db (via cli), it fails. The C*
log shows an assertion error on org.apache.cassandra.db.DecoratedKey.
It looks like it is on key being null, as the LeveledManifest construct it with
null:
{code}
lastCompactedKeys[i] = new DecoratedKey(cfs.partitioner.getMinimumToken(),
null);
{code}
The DecoratedKey in 1.0 only check assertion on token. Cassandra-1034 changes
the assertion in trunk to include the key:
{code}
public DecoratedKey(T token, ByteBuffer key)
{
assert token != null && key != null && key.remaining() > 0;
{code}
{noformat}
ERROR [pool-2-thread-2] 2012-01-23 12:27:47,274 Cassandra.java (line 4228)
Internal error processing system_update_column_family
java.lang.RuntimeException: java.util.concurrent.ExecutionException:
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at
org.apache.cassandra.thrift.CassandraServer.applyMigrationOnStage(CassandraServer.java:861)
at
org.apache.cassandra.thrift.CassandraServer.system_update_column_family(CassandraServer.java:1053)
at
org.apache.cassandra.thrift.Cassandra$Processor$system_update_column_family.process(Cassandra.java:4222)
at
org.apache.cassandra.thrift.Cassandra$Processor.process(Cassandra.java:3077)
at
org.apache.cassandra.thrift.CustomTThreadPoolServer$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:662)
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:853)
... 7 more
Caused by: java.lang.RuntimeException:
java.lang.reflect.InvocationTargetException
at
org.apache.cassandra.config.CFMetaData.createCompactionStrategyInstance(CFMetaData.java:726)
at
org.apache.cassandra.db.ColumnFamilyStore.maybeReloadCompactionStrategy(ColumnFamilyStore.java:164)
at
org.apache.cassandra.db.ColumnFamilyStore.reload(ColumnFamilyStore.java:148)
at
org.apache.cassandra.db.migration.UpdateColumnFamily.applyModels(UpdateColumnFamily.java:86)
at org.apache.cassandra.db.migration.Migration.apply(Migration.java:156)
at
org.apache.cassandra.thrift.CassandraServer$2.call(CassandraServer.java:846)
at java.util.concurrent.FutureTask$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:708)
... 10 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:78)
at
org.apache.cassandra.db.compaction.LeveledManifest.create(LeveledManifest.java:84)
at
org.apache.cassandra.db.compaction.LeveledCompactionStrategy.<init>(LeveledCompactionStrategy.java:74)
... 15 more
{noformat}
There is another bug also in the cli that it does not provide meaningful
error/stack trace, even with --debug:
{noformat}
[default@RequestAnalytic] update column family ServiceName with
compaction_strategy='LeveledCompactionStrategy';
org.apache.thrift.TApplicationException: Internal error processing
system_update_column_family
{noformat}
i could file that as a separate bug if necessary.
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