diff --git a/kojihub/scheduler.py b/kojihub/scheduler.py
index 8d29d729..9671ff33 100644
--- a/kojihub/scheduler.py
+++ b/kojihub/scheduler.py
@@ -64,17 +64,18 @@ def scheduler_map_task(taskinfo):
 
 class TaskScheduler(object):
 
+    def __init__(self):
+        self.hosts_by_bin = None
+
     def run(self):
         if not self.get_lock():
             # already running elsewhere
             return False
 
-        runs = getTaskRuns()
-        runs_by_task = {}
-        for run in runs:
-            runs_by_task.setdefault(run['task_id'], [])
-            runs_by_task[run['task_id']].append(run)
+        self.do_schedule()
+        return True
 
+    def do_schedule(self):
         # get tasks to schedule
         tasks = self.get_free_tasks()
         tasks_by_bin = {}
@@ -138,9 +139,6 @@ class TaskScheduler(object):
                 # XXX need host
                 self.add_run(task, host)
 
-        # indicate that scheduling ran
-        return True
-
     def get_free_tasks(self):
         """Get the tasks that need scheduling"""
 
diff --git a/schemas/schema.sql b/schemas/schema.sql
index 2a555e7d..ee62bc42 100644
--- a/schemas/schema.sql
+++ b/schemas/schema.sql
@@ -1012,6 +1012,7 @@ CREATE TABLE scheduler_map (
         host_id INTEGER REFERENCES host (id) NOT NULL,
         runnable BOOLEAN NOT NULL,
         refused BOOLEAN NOT NULL,
+        msg TEXT,
         check_time TIMESTAMPTZ NOT NULL DEFAULT NOW()
 ) WITHOUT OIDS;