Stefan Miklosovic created CASSANDRA-18021:
---------------------------------------------

             Summary: Flaky 
org.apache.cassandra.distributed.test.ReprepareOldBehaviourTest#testReprepareMixedVersionWithoutReset
                 Key: CASSANDRA-18021
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-18021
             Project: Cassandra
          Issue Type: Bug
            Reporter: Stefan Miklosovic


{code:java}
testReprepareMixedVersionWithoutReset

com.datastax.driver.core.exceptions.InvalidQueryException: MD5 hash collision: 
query with the same MD5 hash was already prepared. 
 Existing: ''

        at 
com.datastax.driver.core.exceptions.InvalidQueryException.copy(InvalidQueryException.java:50)
        at 
com.datastax.driver.core.DriverThrowables.propagateCause(DriverThrowables.java:37)
        at 
com.datastax.driver.core.AbstractSession.prepare(AbstractSession.java:98)
        at 
org.apache.cassandra.distributed.test.ReprepareOldBehaviourTest.testReprepareMixedVersionWithoutReset(ReprepareOldBehaviourTest.java:109)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
        at 
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
        at 
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
        at 
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
        at 
org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
        at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
        at 
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
        at 
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
        at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
        at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
        at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
        at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
        at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
        at 
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
        at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
        at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
        at 
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
        at 
com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38)
        at 
com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11)
        at 
com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35)
        at 
com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:235)
        at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54)
Caused by: com.datastax.driver.core.exceptions.InvalidQueryException: MD5 hash 
collision: query with the same MD5 hash was already prepared. 
 Existing: ''
        at 
com.datastax.driver.core.Responses$Error.asException(Responses.java:136)
        at 
com.datastax.driver.core.SessionManager$4.apply(SessionManager.java:220)
        at 
com.datastax.driver.core.SessionManager$4.apply(SessionManager.java:196)
        at 
com.google.common.util.concurrent.Futures$ChainingListenableFuture.run(Futures.java:906)
        at com.google.common.util.concurrent.Futures$1$1.run(Futures.java:635)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
{code}

this throws:

{code}
lbp.setPrimary(firstContact);
final PreparedStatement select = session.prepare(withKeyspace("SELECT * FROM 
%s.tbl")); /// THIS
session.execute(select.bind());
{code}



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