Add a new monitor type: MultiMonitor that can run any number of other monitors at the same time.

JIRA: YARDSTICK-397

Change-Id: Ic5cb79f0820029e306373abead1ea43fac9abee2
Signed-off-by: LiHuan <lihuanwk@126.com>
(cherry picked from commit 747a3260fef52fb5f7da337bc149ec202a05be6e)

2 files changed, 78 insertions, 0 deletions

diff --git a/yardstick/benchmark/scenarios/availability/monitor/basemonitor.py b/yardstick/benchmark/scenarios/availability/monitor/basemonitor.py
index 3062037ee..a0fc5965b 100644
--- a/yardstick/benchmark/scenarios/availability/monitor/basemonitor.py
+++ b/yardstick/benchmark/scenarios/availability/monitor/basemonitor.py
@@ -34,6 +34,11 @@ class MonitorMgr(object):
         for monitor_cfg in monitor_cfgs:
             monitor_type = monitor_cfg["monitor_type"]
             monitor_cls = BaseMonitor.get_monitor_cls(monitor_type)
+
+            monitor_number = monitor_cfg.get("monitor_number", 1)
+            if monitor_number > 1:
+                monitor_cls = BaseMonitor.get_monitor_cls("multi-monitor")
+
             monitor_ins = monitor_cls(monitor_cfg, context)
             if "key" in monitor_cfg:
                 monitor_ins.key = monitor_cfg["key"]
@@ -133,6 +138,8 @@ class BaseMonitor(multiprocessing.Process):
 
         self._queue.put({"total_time": total_time,
                          "outage_time": last_outage - first_outage,
+                         "last_outage": last_outage,
+                         "first_outage": first_outage,
                          "total_count": total_count,
                          "outage_count": outage_count})
 
@@ -152,3 +159,6 @@ class BaseMonitor(multiprocessing.Process):
 
     def verify_SLA(self):
         pass
+
+    def result(self):
+        return self._result
diff --git a/yardstick/benchmark/scenarios/availability/monitor/monitor_multi.py b/yardstick/benchmark/scenarios/availability/monitor/monitor_multi.py
new file mode 100644
index 000000000..8df2ea282
--- /dev/null
+++ b/yardstick/benchmark/scenarios/availability/monitor/monitor_multi.py
@@ -0,0 +1,68 @@
+##############################################################################
+# Copyright (c) 2017 Huan Li and others
+# lihuansse@tongji.edu.cn
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+
+from __future__ import absolute_import
+import logging
+import time
+
+from yardstick.benchmark.scenarios.availability.monitor import basemonitor
+
+LOG = logging.getLogger(__name__)
+
+
+class MultiMonitor(basemonitor.BaseMonitor):
+
+    __monitor_type__ = "multi-monitor"
+
+    def __init__(self, config, context):
+        super(MultiMonitor, self).__init__(config, context)
+
+        self.monitors = []
+        monitor_type = self._config["monitor_type"]
+        monitor_cls = basemonitor.BaseMonitor.get_monitor_cls(monitor_type)
+
+        monitor_number = self._config.get("monitor_number", 1)
+        for i in range(monitor_number):
+            monitor_ins = monitor_cls(self._config, self._context)
+            self.monitors.append(monitor_ins)
+
+    def start_monitor(self):
+        for monitor in self.monitors:
+            monitor.start_monitor()
+
+    def wait_monitor(self):
+        for monitor in self.monitors:
+            monitor.wait_monitor()
+
+    def verify_SLA(self):
+        first_outage = time.time()
+        last_outage = 0
+
+        for monitor in self.monitors:
+            monitor_result = monitor.result()
+            monitor_first_outage = monitor_result.get('first_outage', None)
+            monitor_last_outage = monitor_result.get('last_outage', None)
+
+            if monitor_first_outage is None or monitor_last_outage is None:
+                continue
+
+            if monitor_first_outage < first_outage:
+                first_outage = monitor_first_outage
+
+            if monitor_last_outage > last_outage:
+                last_outage = monitor_last_outage
+        LOG.debug("multi monitor result: %f , %f", first_outage, last_outage)
+
+        outage_time = last_outage - first_outage
+        max_outage_time = self._config["sla"]["max_outage_time"]
+        if outage_time > max_outage_time:
+            LOG.error("SLA failure: %f > %f", outage_time, max_outage_time)
+            return False
+        else:
+            return True