Philip Thompson created CASSANDRA-7873:
------------------------------------------
Summary: java.util.ConcurrentModificationException seen after
selecting from system_auth
Key: CASSANDRA-7873
URL: https://issues.apache.org/jira/browse/CASSANDRA-7873
Project: Cassandra
Issue Type: Bug
Environment: OSX and Ubuntu 14.04
Reporter: Philip Thompson
Fix For: 3.0
The dtest auth_test.py:TestAuth.system_auth_ks_is_alterable_test is failing on
trunk only with the following stack trace:
{code}
Unexpected error in node1 node log:
ERROR [Thrift:1] 2014-09-03 15:48:08,389 CustomTThreadPoolServer.java:219 -
Error occurred during processing of message.
java.util.ConcurrentModificationException: null
at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:859)
~[na:1.7.0_65]
at java.util.ArrayList$Itr.next(ArrayList.java:831) ~[na:1.7.0_65]
at
org.apache.cassandra.service.RowDigestResolver.resolve(RowDigestResolver.java:71)
~[main/:na]
at
org.apache.cassandra.service.RowDigestResolver.resolve(RowDigestResolver.java:28)
~[main/:na]
at org.apache.cassandra.service.ReadCallback.get(ReadCallback.java:110)
~[main/:na]
at
org.apache.cassandra.service.AbstractReadExecutor.get(AbstractReadExecutor.java:144)
~[main/:na]
at
org.apache.cassandra.service.StorageProxy.fetchRows(StorageProxy.java:1228)
~[main/:na]
at
org.apache.cassandra.service.StorageProxy.read(StorageProxy.java:1154)
~[main/:na]
at
org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:256)
~[main/:na]
at
org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:212)
~[main/:na]
at org.apache.cassandra.auth.Auth.selectUser(Auth.java:257) ~[main/:na]
at org.apache.cassandra.auth.Auth.isExistingUser(Auth.java:76)
~[main/:na]
at org.apache.cassandra.service.ClientState.login(ClientState.java:178)
~[main/:na]
at
org.apache.cassandra.thrift.CassandraServer.login(CassandraServer.java:1486)
~[main/:na]
at
org.apache.cassandra.thrift.Cassandra$Processor$login.getResult(Cassandra.java:3579)
~[thrift/:na]
at
org.apache.cassandra.thrift.Cassandra$Processor$login.getResult(Cassandra.java:3563)
~[thrift/:na]
at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
~[libthrift-0.9.1.jar:0.9.1]
at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
~[libthrift-0.9.1.jar:0.9.1]
at
org.apache.cassandra.thrift.CustomTThreadPoolServer$WorkerProcess.run(CustomTThreadPoolServer.java:201)
~[main/:na]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[na:1.7.0_65]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[na:1.7.0_65]
at java.lang.Thread.run(Thread.java:745) [na:1.7.0_65]
{code}
That exception is thrown when the following query is sent:
{code}
"""SELECT strategy_options
FROM system.schema_keyspaces
WHERE keyspace_name = 'system_auth'"""
{code}
The test alters the RF of the system_auth keyspace, then shuts down and
restarts the cluster.
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