Fix reading of metrics of Streams' SimpleBenchmark
With the metrics definitions are refactored. Thus, Streams' SimpleBenchmark needs to be updated to correctly access the refactored metrics.
Reviewers: Guozhang Wang Matthias J. Sax  Bill Bejeck
@@ -39,7 +39,7 @@ class StreamsSimpleBenchmarkService(StreamsTestBaseService):
self.jmx_option = "stream-jmx"
JmxMixin.__init__(self,
num_nodes=1,
- jmx_object_names=['kafka.streams:type=stream-metrics,client-id=simple-benchmark-StreamThread-%d' %(i+1) for i in range(num_threads)],
+ jmx_object_names=['kafka.streams:type=stream-thread-metrics,thread-id=simple-benchmark-StreamThread-%d' %(i+1) for i in range(num_threads)],
jmx_attributes=['process-latency-avg',
'process-rate',
'commit-latency-avg',
