OOM_FRAME_OVERBOARD_ALLOWED_THRESHOLD can be deactivated with -1

(cherry picked from commit 647e75e2254c7a7ff68c544e438080f412bf04c1)

cuebot/src/main/java/com/imageworks/spcue/dispatcher/Dispatcher.java

@@ -1,4 +1,3 @@
-
 /*
  * Copyright Contributors to the OpenCue Project
  *
@@ -111,8 +110,10 @@ public interface Dispatcher {
     // Percentage of used memory to consider a risk for triggering oom-killer
     public static final double OOM_MAX_SAFE_USED_MEMORY_THRESHOLD = 0.95;
 
-    // How much can a frame exceed its reserved memory
-    public static final double OOM_FRAME_OVERBOARD_ALLOWED_THRESHOLD = 0.25;
+    // How much can a frame exceed its reserved memory.
+    //  - 0.5 means 50% above reserve
+    //  - -1.0 makes the feature inactive
+    public static final double OOM_FRAME_OVERBOARD_ALLOWED_THRESHOLD = 0.6;
 
     // A higher number gets more deep booking but less spread on the cue.
     public static final int DEFAULT_MAX_FRAMES_PER_PASS = 4;

cuebot/src/main/java/com/imageworks/spcue/dispatcher/HostReportHandler.java

@@ -493,8 +493,8 @@ private void handleMemoryUsage(final DispatchHost host, final HostReport report)
             // When no mass cleaning was required, check for frames going overboard
             // if frames didn't go overboard, manage its reservations trying to increase
             // them accordingly
-            for (final RunningFrameInfo frame: runningFrames) {
-                if (isFrameOverboard(frame)) {
+            for (final RunningFrameInfo frame : runningFrames) {
+                if (OOM_FRAME_OVERBOARD_ALLOWED_THRESHOLD > 0 && isFrameOverboard(frame)) {
                     if (!killFrameOverusingMemory(frame, host.getName())) {
                         logger.warn("Frame " + frame.getJobName() + "." + frame.getFrameName() +
                                 " is overboard but could not be killed");