getting CF11 slowdowns and see [ajp-bio-8014-exec-103] in the coldfusion-out.log

We get these slowdowns just about evert hour:

Jun 14, 2015 11:51:43 AM Warning [ajp-bio-8014-exec-1140] - Could not obtain the lock for client scope. The lock obtained on it might not have been released.

Jun 14, 2015 13:12:04 PM Warning [ajp-bio-8014-exec-1410] - Could not obtain the lock for client scope. The lock obtained on it might not have been released.

Jun 14, 2015 14:50:49 PM Warning [ajp-bio-8014-exec-1872] - Could not obtain the lock for client scope. The lock obtained on it might not have been released.

Jun 14, 2015 15:44:03 PM Warning [ajp-bio-8014-exec-1921] - Could not obtain the lock for client scope. The lock obtained on it might not have been released.

Jun 14, 2015 15:44:04 PM Warning [ajp-bio-8014-exec-1948] - Could not obtain the lock for client scope. The lock obtained on it might not have been released.

Jun 14, 2015 16:41:11 PM Warning [ajp-bio-8014-exec-2320] - Could not obtain the lock for client scope. The lock obtained on it might not have been released.

Jun 14, 2015 19:02:50 PM Warning [ajp-bio-8014-exec-107] - Could not obtain the lock for client scope. The lock obtained on it might not have been released.

Jun 14, 2015 19:02:50 PM Warning [ajp-bio-8014-exec-36] - Could not obtain the lock for client scope. The lock obtained on it might not have been released.

Jun 14, 2015 19:02:50 PM Warning [ajp-bio-8014-exec-72] - Could not obtain the lock for client scope. The lock obtained on it might not have been released.

Jun 14, 2015 19:02:50 PM Warning [ajp-bio-8014-exec-73] - Could not obtain the lock for client scope. The lock obtained on it might not have been released.

Jun 14, 2015 20:08:53 PM Warning [ajp-bio-8014-exec-599] - Could not obtain the lock for client scope. The lock obtained on it might not have been released.

Jun 14, 2015 20:11:08 PM Warning [ajp-bio-8014-exec-779] - Could not obtain the lock for client scope. The lock obtained on it might not have been released.

Jun 14, 2015 20:11:08 PM Warning [ajp-bio-8014-exec-789] - Could not obtain the lock for client scope. The lock obtained on it might not have been released.