[jira] [Created] (KAFKA-2807) Movement of throughput throttler to common broke upgrade tests

["Geoff Anderson (JIRA)" <ji...@apache.org>]

Geoff Anderson created KAFKA-2807:
-------------------------------------

             Summary: Movement of throughput throttler to common broke upgrade tests
                 Key: KAFKA-2807
                 URL: https://issues.apache.org/jira/browse/KAFKA-2807
             Project: Kafka
          Issue Type: Bug
            Reporter: Geoff Anderson
            Assignee: Geoff Anderson
             Fix For: 0.9.0.0


In order to run compatibility tests with an 0.8.2 producer, and using VerifiableProducer, we use the 0.8.2 kafka-run-tools.sh classpath augmented by the 0.9.0 tools and tools dependencies classpaths.

Recently, some refactoring efforts moved ThroughputThrottler to org.apache.kafka.common.utils package, but this breaks the existing compatibility tests:

{code}
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/kafka/common/utils/ThroughputThrottler
        at org.apache.kafka.tools.VerifiableProducer.main(VerifiableProducer.java:334)
Caused by: java.lang.ClassNotFoundException: org.apache.kafka.common.utils.ThroughputThrottler
        at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
        ... 1 more
{code}

Given the need to be able to run VerifiableProducer against 0.8.X, I'm not sure VerifiableProducer can depend on org.apache.kafka.common.utils at this point in time. 



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