Workaround to get ostf working

Temporary solution, after stabilisation
should be removed.

Related-Bug: #1522941
Change-Id: Ida45bea2ba979748bf6853ef947fc665f865ed42

fuel_plugin/ostf_adapter/nose_plugin/nose_adapter.py

@@ -16,6 +16,7 @@ import fcntl
 import logging
 import os
 import signal
+import time
 
 try:
     from oslo.config import cfg
@@ -79,6 +80,11 @@ class NoseDriver(object):
             raise InterruptTestRunException()
         signal.signal(signal.SIGUSR1, raise_exception_handler)
 
+        # FIXME(dteselkin): add some sleep to allow process to
+        #                   initialize db before selecting data
+        #                   LP#1522941
+        time.sleep(1)
+
         with engine.contexted_session(dbpath) as session:
             testrun = session.query(models.TestRun)\
                 .filter_by(id=test_run_id)\