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https://issues.apache.org/jira/browse/CASSANDRA-8427?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Benjamin Lerer updated CASSANDRA-8427:
--------------------------------------
    Attachment: CASSANDRA-8427-trunk.txt
                CASSANDRA-8427-2.1.txt

The problem was coming from the fact that {{CQLTester}} was trying to drop a 
UDT that was used by another UDT.
The patch make sure that {{CQLTester}} drop the UDT, UDF and UDA in the reverse 
order than the one in which they were created. 

> An error is written to System.out when UserTypesTest is run
> -----------------------------------------------------------
>
>                 Key: CASSANDRA-8427
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8427
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Benjamin Lerer
>            Assignee: Benjamin Lerer
>            Priority: Minor
>         Attachments: CASSANDRA-8427-2.1.txt, CASSANDRA-8427-trunk.txt
>
>
> When running {{org.apache.cassandra.cql3.UserTypesTest}} the following error 
> is printed out to the console.
> {code}ERROR 09:58:41 Fatal exception in thread Thread[OptionalTasks:1,5,main]
> java.lang.RuntimeException: java.lang.RuntimeException: Error setting schema 
> for test (query was: DROP TYPE IF EXISTS cql_test_keyspace.type_2)
>       at org.apache.cassandra.cql3.CQLTester$1.run(CQLTester.java:188) 
> ~[classes/:na]
>       at 
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) 
> ~[na:1.7.0_60]
>       at java.util.concurrent.FutureTask.run(FutureTask.java:262) 
> ~[na:1.7.0_60]
>       at 
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)
>  ~[na:1.7.0_60]
>       at 
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)
>  ~[na:1.7.0_60]
>       at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>  ~[na:1.7.0_60]
>       at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>  [na:1.7.0_60]
>       at java.lang.Thread.run(Thread.java:745) [na:1.7.0_60]
> Caused by: java.lang.RuntimeException: Error setting schema for test (query 
> was: DROP TYPE IF EXISTS cql_test_keyspace.type_2)
>       at org.apache.cassandra.cql3.CQLTester.schemaChange(CQLTester.java:413) 
> ~[classes/:na]
>       at org.apache.cassandra.cql3.CQLTester.access$3(CQLTester.java:404) 
> ~[classes/:na]
>       at org.apache.cassandra.cql3.CQLTester$1.run(CQLTester.java:167) 
> ~[classes/:na]
>       ... 7 common frames omitted
> Caused by: java.lang.RuntimeException: Error validating query DROP TYPE IF 
> EXISTS cql_test_keyspace.type_2
>       at 
> org.apache.cassandra.cql3.QueryProcessor.executeOnceInternal(QueryProcessor.java:374)
>  ~[main/:na]
>       at org.apache.cassandra.cql3.CQLTester.schemaChange(CQLTester.java:409) 
> ~[classes/:na]
>       ... 9 common frames omitted
> Caused by: org.apache.cassandra.exceptions.InvalidRequestException: Cannot 
> drop user type cql_test_keyspace.type_2 as it is still used by user type 
> type_3
>       at 
> org.apache.cassandra.cql3.statements.DropTypeStatement.validate(DropTypeStatement.java:93)
>  ~[main/:na]
>       at 
> org.apache.cassandra.cql3.QueryProcessor.executeOnceInternal(QueryProcessor.java:361)
>  ~[main/:na]
>       ... 10 common frames omitted
> ERROR 09:58:41 Fatal exception in thread Thread[OptionalTasks:1,5,main]
> java.lang.RuntimeException: java.lang.RuntimeException: Error setting schema 
> for test (query was: DROP TYPE IF EXISTS cql_test_keyspace.type_2)
>       at org.apache.cassandra.cql3.CQLTester$1.run(CQLTester.java:188) 
> ~[classes/:na]
>       at 
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) 
> ~[na:1.7.0_60]
>       at java.util.concurrent.FutureTask.run(FutureTask.java:262) 
> ~[na:1.7.0_60]
>       at 
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)
>  ~[na:1.7.0_60]
>       at 
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)
>  ~[na:1.7.0_60]
>       at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>  ~[na:1.7.0_60]
>       at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>  [na:1.7.0_60]
>       at java.lang.Thread.run(Thread.java:745) [na:1.7.0_60]
> Caused by: java.lang.RuntimeException: Error setting schema for test (query 
> was: DROP TYPE IF EXISTS cql_test_keyspace.type_2)
>       at org.apache.cassandra.cql3.CQLTester.schemaChange(CQLTester.java:413) 
> ~[classes/:na]
>       at org.apache.cassandra.cql3.CQLTester.access$3(CQLTester.java:404) 
> ~[classes/:na]
>       at org.apache.cassandra.cql3.CQLTester$1.run(CQLTester.java:167) 
> ~[classes/:na]
>       ... 7 common frames omitted
> Caused by: java.lang.RuntimeException: Error validating query DROP TYPE IF 
> EXISTS cql_test_keyspace.type_2
>       at 
> org.apache.cassandra.cql3.QueryProcessor.executeOnceInternal(QueryProcessor.java:374)
>  ~[main/:na]
>       at org.apache.cassandra.cql3.CQLTester.schemaChange(CQLTester.java:409) 
> ~[classes/:na]
>       ... 9 common frames omitted
> Caused by: org.apache.cassandra.exceptions.InvalidRequestException: Cannot 
> drop user type cql_test_keyspace.type_2 as it is still used by user type 
> type_3
>       at 
> org.apache.cassandra.cql3.statements.DropTypeStatement.validate(DropTypeStatement.java:93)
>  ~[main/:na]
>       at 
> org.apache.cassandra.cql3.QueryProcessor.executeOnceInternal(QueryProcessor.java:361)
>  ~[main/:na]
>       ... 10 common frames omitted{code}



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