[CASSANDRA-13346] Failed unregistering mbean during drop keyspace

• Type: Bug
• Status: Resolved
• Priority: Low
• Resolution: Fixed
• Fix Version/s: 3.0.14, 3.11.0, 4.0-alpha1, 4.0
• Component/s: Feature/Materialized Views
• Labels: lhf

Environment

Cassandra 3.9

• Severity: Low
• Assignee: Lerh Chuan Low
• Reporter: Gábor Auth

Authors

Lerh Chuan Low

Reviewers

Chris Lohfink

• Created: 17/Mar/17 11:15
• Updated: 15/May/20 07:59
• Resolved: 06/Jun/17 18:59

Description

All node throw exceptions about materialized views during drop keyspace:

WARN  [MigrationStage:1] 2017-03-16 16:54:25,016 ColumnFamilyStore.java:535 - Failed unregistering mbean: org.apache.cassandra.db:type=Tables,keyspace=test20160810,table=unit_by_account
java.lang.NullPointerException: null
        at java.util.concurrent.ConcurrentHashMap.replaceNode(ConcurrentHashMap.java:1106) ~[na:1.8.0_121]
        at java.util.concurrent.ConcurrentHashMap.remove(ConcurrentHashMap.java:1097) ~[na:1.8.0_121]
        at java.util.concurrent.ConcurrentHashMap$KeySetView.remove(ConcurrentHashMap.java:4569) ~[na:1.8.0_121]
        at org.apache.cassandra.metrics.TableMetrics.release(TableMetrics.java:712) ~[apache-cassandra-3.9.0.jar:3.9.0]
        at org.apache.cassandra.db.ColumnFamilyStore.unregisterMBean(ColumnFamilyStore.java:570) [apache-cassandra-3.9.0.jar:3.9.0]
        at org.apache.cassandra.db.ColumnFamilyStore.invalidate(ColumnFamilyStore.java:527) [apache-cassandra-3.9.0.jar:3.9.0]
        at org.apache.cassandra.db.ColumnFamilyStore.invalidate(ColumnFamilyStore.java:517) [apache-cassandra-3.9.0.jar:3.9.0]
        at org.apache.cassandra.db.Keyspace.unloadCf(Keyspace.java:365) [apache-cassandra-3.9.0.jar:3.9.0]
        at org.apache.cassandra.db.Keyspace.dropCf(Keyspace.java:358) [apache-cassandra-3.9.0.jar:3.9.0]
        at org.apache.cassandra.config.Schema.dropView(Schema.java:744) [apache-cassandra-3.9.0.jar:3.9.0]
        at org.apache.cassandra.schema.SchemaKeyspace.lambda$mergeSchema$373(SchemaKeyspace.java:1287) [apache-cassandra-3.9.0.jar:3.9.0]
        at java.lang.Iterable.forEach(Iterable.java:75) ~[na:1.8.0_121]
        at org.apache.cassandra.schema.SchemaKeyspace.mergeSchema(SchemaKeyspace.java:1287) [apache-cassandra-3.9.0.jar:3.9.0]
        at org.apache.cassandra.schema.SchemaKeyspace.mergeSchemaAndAnnounceVersion(SchemaKeyspace.java:1256) [apache-cassandra-3.9.0.jar:3.9.0]
        at org.apache.cassandra.db.DefinitionsUpdateVerbHandler$1.runMayThrow(DefinitionsUpdateVerbHandler.java:51) ~[apache-cassandra-3.9.0.jar:3.9.0]
        at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) ~[apache-cassandra-3.9.0.jar:3.9.0]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[na:1.8.0_121]
        at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_121]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) ~[na:1.8.0_121]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) ~[na:1.8.0_121]
        at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_121]