Merge "Support configuring Monasca log pipeline performance"

ansible/roles/monasca/defaults/main.yml

@@ -64,6 +64,14 @@ monasca_metrics_topic: "metrics"
 monasca_raw_logs_topic: "logs"
 monasca_transformed_logs_topic: "transformed-logs"
 
+# Processing pipeline threads. In a large scale deployment you will likely
+# want to tune these with finer precision. For example, if you have a very
+# high log throughput, the log metrics service consumer may require a
+# higher thread count than the producer. You will also want to ensure that
+# the total number of threads across all instances of a service does not
+# exceed the Kafka topic partition count.
+monasca_log_pipeline_threads: 2
+
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