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Benedict commented on CASSANDRA-8399: ------------------------------------- Yep, looks good to me. +1. > Reference Counter exception when dropping user type > --------------------------------------------------- > > Key: CASSANDRA-8399 > URL: https://issues.apache.org/jira/browse/CASSANDRA-8399 > Project: Cassandra > Issue Type: Bug > Reporter: Philip Thompson > Assignee: Joshua McKenzie > Fix For: 2.1.3 > > Attachments: 8399_fix_empty_results.txt, 8399_v2.txt, node2.log, > ubuntu-8399.log > > > When running the dtest > {{user_types_test.py:TestUserTypes.test_type_keyspace_permission_isolation}} > with the current 2.1-HEAD code, very frequently, but not always, when > dropping a type, the following exception is seen:{code} > ERROR [MigrationStage:1] 2014-12-01 13:54:54,824 CassandraDaemon.java:170 - > Exception in thread Thread[MigrationStage:1,5,main] > java.lang.AssertionError: Reference counter -1 for > /var/folders/v3/z4wf_34n1q506_xjdy49gb780000gn/T/dtest-eW2RXj/test/node2/data/system/schema_keyspaces-b0f2235744583cdb9631c43e59ce3676/system-sche > ma_keyspaces-ka-14-Data.db > at > org.apache.cassandra.io.sstable.SSTableReader.releaseReference(SSTableReader.java:1662) > ~[main/:na] > at > org.apache.cassandra.io.sstable.SSTableScanner.close(SSTableScanner.java:164) > ~[main/:na] > at > org.apache.cassandra.utils.MergeIterator.close(MergeIterator.java:62) > ~[main/:na] > at > org.apache.cassandra.db.ColumnFamilyStore$8.close(ColumnFamilyStore.java:1943) > ~[main/:na] > at > org.apache.cassandra.db.ColumnFamilyStore.filter(ColumnFamilyStore.java:2116) > ~[main/:na] > at > org.apache.cassandra.db.ColumnFamilyStore.getRangeSlice(ColumnFamilyStore.java:2029) > ~[main/:na] > at > org.apache.cassandra.db.ColumnFamilyStore.getRangeSlice(ColumnFamilyStore.java:1963) > ~[main/:na] > at > org.apache.cassandra.db.SystemKeyspace.serializedSchema(SystemKeyspace.java:744) > ~[main/:na] > at > org.apache.cassandra.db.SystemKeyspace.serializedSchema(SystemKeyspace.java:731) > ~[main/:na] > at org.apache.cassandra.config.Schema.updateVersion(Schema.java:374) > ~[main/:na] > at > org.apache.cassandra.config.Schema.updateVersionAndAnnounce(Schema.java:399) > ~[main/:na] > at > org.apache.cassandra.db.DefsTables.mergeSchema(DefsTables.java:167) > ~[main/:na] > at > org.apache.cassandra.db.DefinitionsUpdateVerbHandler$1.runMayThrow(DefinitionsUpdateVerbHandler.java:49) > ~[main/:na] > at > org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) > ~[main/:na] > at > java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) > ~[na:1.7.0_67] > at java.util.concurrent.FutureTask.run(FutureTask.java:262) > ~[na:1.7.0_67] > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > ~[na:1.7.0_67] > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > [na:1.7.0_67] > at java.lang.Thread.run(Thread.java:745) [na:1.7.0_67]{code} > Log of the node with the error is attached. -- This message was sent by Atlassian JIRA (v6.3.4#6332)