KAFKA-3080: Fix ConsoleConsumerTest by checking version when service is started

The MessageFormatter being used was only introduced as of 0.9.0.0. The Kafka
version in some tests is changed dynamically, sometimes from trunk back to an
earlier version, so this option must be set based on the version used when the
service is started, not when it is created.

Author: Ewen Cheslack-Postava <me@ewencp.org>

Reviewers: Geoff Anderson, Ismael Juma, Grant Henke

Closes #770 from ewencp/kafka-3080-system-test-console-consumer-version-failure

tests/kafkatest/services/console_consumer.py

@@ -135,7 +135,6 @@ class ConsoleConsumer(JmxMixin, BackgroundThreadService):
         self.messages_consumed = {idx: [] for idx in range(1, num_nodes + 1)}
         self.client_id = client_id
         self.print_key = print_key
-        self.log_values = True if version == TRUNK else False
         self.log_level = "TRACE"
 
     def prop_file(self, node):
@@ -192,7 +191,8 @@ class ConsoleConsumer(JmxMixin, BackgroundThreadService):
         if self.print_key:
             cmd += " --property print.key=true"
 
-        if self.log_values:
+        # LoggingMessageFormatter was introduced in 0.9.0.0
+        if node.version > LATEST_0_8_2:
             cmd+=" --formatter kafka.tools.LoggingMessageFormatter"
 
         cmd += " 2>> %(stderr)s | tee -a %(stdout)s &" % args