Change method of getting PIDs of running processes

Change-Id: I669cd6f4fd52d04de9ed6087719e8910d570505e

stacklight_tests/helpers/remote_ops.py

@@ -66,17 +66,18 @@ def simulate_network_interrupt_on_node(remote, interval=30):
     remote.execute(cmd)
 
 
-def get_pids_of_process(remote, name):
-    """Get PIDs of process by its name.
+def get_pids_of_process(remote, cmd_pattern):
+    """Get PIDS of process by its pattern.
 
         :param remote: SSH connection to the node.
         :type remote: SSHClient
-        :param name: process name.
-        :type name: str
-        :returns: list of PIDs.
+        :param cmd_pattern: command.
+        :type cmd_pattern: str
+        :returns: list of PIDS.
         :rtype: list
         """
-    cmd = "pidof {}".format(name)
+
+    cmd = "pgrep -f '{}'".format(cmd_pattern)
     result = remote.execute(cmd)
     if result['exit_code'] != 0:
         return []

stacklight_tests/lma_collector/api.py

@@ -37,18 +37,22 @@ class LMACollectorPluginApi(base_test.PluginApi):
         :returns: list of process IDs indexed by node and process
         :rtype: dict
         """
+        services = ["metric_collector", "log_collector"]
+        service_version_9 = ["lma_collector"]
         pids = {}
         processes_count = {
-            "collectd": 1,
-            "collectdmon": 1
+            "collectd ": 1,
+            "collectdmon ": 1
         }
 
         if self.settings.version.startswith("0.9"):
-            processes_count["hekad"] = 1
+            processes_count[
+                "hekad -config[= ]/etc/{}".format(service_version_9)] = 1
         else:
             # Starting with 0.10, there are one collector for logs and one for
             # metrics
-            processes_count["hekad"] = 2
+            for service in services:
+                processes_count["hekad -config[= ]/etc/{}".format(service)] = 1
         online_nodes = [node for node in self.helpers.get_all_ready_nodes()
                         if node["online"]]
         for node in online_nodes: