The previous check wasn't handling it already running.

Change-Id: I43ce52f64e907f832dd91a74a3834fee04194a32

anvil/components/rabbit.py

@@ -79,11 +79,24 @@ class RabbitInstaller(binstall.PkgInstallComponent):
 
 class RabbitRuntime(bruntime.ProgramRuntime):
     def start(self):
-        if self.statii()[0].status != bruntime.STATUS_STARTED:
-            self._run_action('start')
+
+        def is_active():
+            status = self.statii()[0].status
+            if status == bruntime.STATUS_STARTED:
+                return True
+            return False
+
+        if is_active():
             return 1
-        else:
-            raise RuntimeError('Failed to start rabbit-mq')
+
+        self._run_action('start')
+        for sleep_secs in utils.ExponentialBackoff():
+            LOG.info("Sleeping for %s seconds, rabbit-mq is still not active.",
+                     sleep_secs)
+            sh.sleep(sleep_secs)
+            if is_active():
+                return 1
+        raise RuntimeError('Failed to start rabbit-mq')
 
     @property
     def applications(self):

anvil/utils.py

@@ -93,7 +93,7 @@ LOG = logging.getLogger(__name__)
 
 
 class ExponentialBackoff(object):
-    def __init__(self, start, attempts):
+    def __init__(self, attempts=5, start=1.3):
         self.start = start
         self.attempts = attempts
 
@@ -168,7 +168,7 @@ def wait_for_url(url, max_attempts=5):
 
     excps = []
     attempts = 0
-    for sleep_time in ExponentialBackoff(1.3, max_attempts):
+    for sleep_time in ExponentialBackoff(attempts=max_attempts):
         attempts += 1
         try:
             with contextlib.closing(urllib2.urlopen(urllib2.Request(url))) as req: