Dropping log level to debug in few places

Change-Id: I4b42d4f3edfc6e9cdd0822cfcb74d1070b0b7a70

@@ -479,7 +479,7 @@ public class DeviceManager
 
             // FIXME: implement response to this notification
 
-            log.info("got reply to a role request for {}: asked for {}, and got {}",
+            log.debug("got reply to a role request for {}: asked for {}, and got {}",
                      deviceId, requested, response);
 
             if (requested == null && response == null) {
@@ -596,16 +596,18 @@ public class DeviceManager
                 post(devEvent);
             }
             // TODO: should apply role only if there is mismatch
-            log.info("Applying role {} to {}", myNextRole, did);
+            log.debug("Applying role {} to {}", myNextRole, did);
             if (!applyRoleAndProbe(did, MASTER)) {
+                log.warn("Unsuccessful applying role {} to {}", myNextRole, did);
                 // immediately failed to apply role
                 mastershipService.relinquishMastership(did);
                 // FIXME disconnect?
             }
             break;
         case STANDBY:
-            log.info("Applying role {} to {}", myNextRole, did);
+            log.debug("Applying role {} to {}", myNextRole, did);
             if (!applyRoleAndProbe(did, STANDBY)) {
+                log.warn("Unsuccessful applying role {} to {}", myNextRole, did);
                 // immediately failed to apply role
                 mastershipService.relinquishMastership(did);
                 // FIXME disconnect?

@@ -69,7 +69,7 @@ public class DeviceClockManager implements DeviceClockService, DeviceClockProvid
 
     @Override
     public void setMastershipTerm(DeviceId deviceId, MastershipTerm term) {
-        log.info("adding term info {} {}", deviceId, term.master());
+        log.debug("adding term info {} {}", deviceId, term.master());
         deviceMastershipTerms.put(deviceId, term);
     }
 

@@ -322,7 +322,7 @@ public class GossipDeviceStore
             }
 
             if (deviceEvent != null) {
-                log.info("Notifying peers of a device update topology event for providerId: {} and deviceId: {}",
+                log.debug("Notifying peers of a device update topology event for providerId: {} and deviceId: {}",
                          providerId, deviceId);
                 notifyPeers(new InternalDeviceEvent(providerId, deviceId, mergedDesc));
             }
@@ -452,7 +452,7 @@ public class GossipDeviceStore
         final Timestamp timestamp = deviceClockService.getTimestamp(deviceId);
         final DeviceEvent event = markOfflineInternal(deviceId, timestamp);
         if (event != null) {
-            log.info("Notifying peers of a device offline topology event for deviceId: {} {}",
+            log.debug("Notifying peers of a device offline topology event for deviceId: {} {}",
                      deviceId, timestamp);
             notifyPeers(new InternalDeviceOfflineEvent(deviceId, timestamp));
         }
@@ -572,7 +572,7 @@ public class GossipDeviceStore
             }
 
             if (!deviceEvents.isEmpty()) {
-                log.info("Notifying peers of a ports update topology event for providerId: {} and deviceId: {}",
+                log.debug("Notifying peers of a ports update topology event for providerId: {} and deviceId: {}",
                          providerId, deviceId);
                 notifyPeers(new InternalPortEvent(providerId, deviceId, merged));
             }
@@ -766,7 +766,7 @@ public class GossipDeviceStore
                     .getPortDesc(portDescription.portNumber());
         }
         if (event != null) {
-            log.info("Notifying peers of a port status update topology event for providerId: {} and deviceId: {}",
+            log.debug("Notifying peers of a port status update topology event for providerId: {} and deviceId: {}",
                      providerId, deviceId);
             notifyPeers(new InternalPortStatusEvent(providerId, deviceId, mergedDesc));
         }

@@ -317,7 +317,7 @@ public class GossipLinkStore
             }
 
             if (linkEvent != null) {
-                log.info("Notifying peers of a link update topology event from providerId: "
+                log.debug("Notifying peers of a link update topology event from providerId: "
                                 + "{}  between src: {} and dst: {}",
                         providerId, linkDescription.src(), linkDescription.dst());
                 notifyPeers(new InternalLinkEvent(providerId, mergedDesc));
@@ -475,7 +475,7 @@ public class GossipLinkStore
         LinkEvent event = removeLinkInternal(key, timestamp);
 
         if (event != null) {
-            log.info("Notifying peers of a link removed topology event for a link "
+            log.debug("Notifying peers of a link removed topology event for a link "
                     + "between src: {} and dst: {}", src, dst);
             notifyPeers(new InternalLinkRemovedEvent(key, timestamp));
         }

@@ -274,7 +274,7 @@ public abstract class AbstractOpenFlowSwitch extends AbstractHandlerBehaviour
     public void setRole(RoleState role) {
         try {
             if (this.roleMan.sendRoleRequest(role, RoleRecvStatus.MATCHED_SET_ROLE)) {
-                log.info("Sending role {} to switch {}", role, getStringId());
+                log.debug("Sending role {} to switch {}", role, getStringId());
                 if (role == RoleState.SLAVE || role == RoleState.EQUAL) {
                     this.role = role;
                 }

@@ -119,7 +119,7 @@ public final class BoundedThreadPool extends ThreadPoolExecutor {
         long prev = lastPrinted.get();
         if (now - prev > STATS_INTERVAL) {
             if (lastPrinted.compareAndSet(prev, now)) {
-                log.warn("queue size: {} jobs, submitted: {} jobs/s, taken: {} jobs/s",
+                log.debug("queue size: {} jobs, submitted: {} jobs/s, taken: {} jobs/s",
                          getQueue().size(),
                          submitted.throughput(), taken.throughput());
                 submitted.reset();