Continue benchmark in case of analysis failure.

The lag analysis and trend slope computer may fail to various reasons.
But the benchmark should continoue, because this may be only temporary errors.

execution/run_uc.py

@@ -282,8 +282,14 @@ def run_evaluation(exp_id, uc_id, dim_value, instances, execution_minutes, prome
     :param int execution_minutes: How long the use case where executed.
     """
     print('Run evaluation function')
-    lag_analysis.main(exp_id, f'uc{uc_id}', dim_value, instances,
-                      execution_minutes, prometheus_base_url, result_path)
+    try:
+        lag_analysis.main(exp_id, f'uc{uc_id}', dim_value, instances,
+                          execution_minutes, prometheus_base_url,
+                          result_path)
+    except Exception as e:
+        print('Evaluation function failed')
+        logging.exception('Evaluation function failed')
+
     return
 
 

execution/strategies/subexperiment_evaluation/subexperiment_evaluator.py

+import lib.trend_slope_computer as trend_slope_computer
+import logging
 import os
 import sys
-import os
-import lib.trend_slope_computer as trend_slope_computer
 
 THRESHOLD = 2000
 WARMUP_SEC = 60
@@ -10,7 +10,13 @@ def execute(config):
     cwd = f'{os.getcwd()}/{config.result_path}'
     file = f"exp{config.exp_id}_uc{config.use_case}_{config.dim_value}_{config.replicas}_totallag.csv"
 
-    trend_slope = trend_slope_computer.compute(cwd, file, WARMUP_SEC, THRESHOLD)
+    try:
+        trend_slope = trend_slope_computer.compute(cwd, file, WARMUP_SEC, THRESHOLD)
+    except Exception as e:
+        print('Computing trend slope failed.')
+        logging.exception('Computing trend slope failed.')
+        return 0
+
 
     print(f"Trend Slope: {trend_slope}")
     success = 0 if trend_slope > THRESHOLD else 1