Fixes for voltha-periodic-test jobs

Change-Id: I35ee8130389c1999b180faa7bec89bc4c45c58b8
diff --git a/jjb/pipeline/voltha/master/periodic-bbsim-tests.groovy b/jjb/pipeline/voltha/master/periodic-bbsim-tests.groovy
index f2cbf09..42c4b29 100644
--- a/jjb/pipeline/voltha/master/periodic-bbsim-tests.groovy
+++ b/jjb/pipeline/voltha/master/periodic-bbsim-tests.groovy
@@ -59,7 +59,8 @@
           }
 
           // NOTE temporary workaround expose ONOS node ports
-          def localHelmFlags = extraHelmFlags + " --set onos-classic.onosSshPort=30115 " +
+          def localHelmFlags = extraHelmFlags + " --set global.log_level=${logLevel.toUpperCase()} " +
+          " --set onos-classic.onosSshPort=30115 " +
           " --set onos-classic.onosApiPort=30120 " +
           " --set onos-classic.onosOfPort=31653 " +
           " --set onos-classic.individualOpenFlowNodePorts=true " + testSpecificHelmFlags