diff --git a/core/src/main/java/hudson/model/AbstractProject.java b/core/src/main/java/hudson/model/AbstractProject.java
index 3f477f83e536bf7e01007d43c29f9b8fbccb003b..319f355fd508bbb2731bd50dc876aded4faf742b 100644
--- a/core/src/main/java/hudson/model/AbstractProject.java
+++ b/core/src/main/java/hudson/model/AbstractProject.java
@@ -324,11 +324,13 @@ public abstract class AbstractProject<P extends AbstractProject<P,R>,R extends A
         buildMixIn.onLoad(parent, name);
         builds = buildMixIn.getRunMap();
         triggers().setOwner(this);
-        for (Trigger t : triggers()) {
-            try {
-                t.start(this, Items.currentlyUpdatingByXml());
-            } catch (Throwable e) {
-                LOGGER.log(Level.WARNING, "could not start trigger while loading project '" + getFullName() + "'", e);
+        if (isBuildable()) {
+            for (Trigger t : triggers()) {
+                try {
+                    t.start(this, Items.currentlyUpdatingByXml());
+                } catch (Throwable e) {
+                    LOGGER.log(Level.WARNING, "could not start trigger while loading project '" + getFullName() + "'", e);
+                }
             }
         }
         if(scm==null)
@@ -1879,8 +1881,10 @@ public abstract class AbstractProject<P extends AbstractProject<P,R>,R extends A
         for (Trigger t : triggers())
             t.stop();
         triggers.replaceBy(buildDescribable(req, Trigger.for_(this)));
-        for (Trigger t : triggers())
-            t.start(this,true);
+        if (isBuildable()) {
+            for (Trigger t : triggers())
+                t.start(this, true);
+        }
     }
 
     /**
diff --git a/core/src/main/java/hudson/triggers/Trigger.java b/core/src/main/java/hudson/triggers/Trigger.java
index 6f5c922d2603d06c324cc8858cc1a585bca5f84e..a6b6443a0a1c51b3f90c98e959a337c4d3d63297 100644
--- a/core/src/main/java/hudson/triggers/Trigger.java
+++ b/core/src/main/java/hudson/triggers/Trigger.java
@@ -99,6 +99,8 @@ public abstract class Trigger<J extends Item> implements Describable<Trigger<?>>
      *
      * This method is invoked when {@link #Trigger(String)} is used
      * to create an instance, and the crontab matches the current time.
+     * <p>
+     * Maybe run even before {@link #start(hudson.model.Item, boolean)}, prepare for it.
      */
     public void run() {}
 
@@ -241,6 +243,10 @@ public abstract class Trigger<J extends Item> implements Describable<Trigger<?>>
                 // FIXME allow to set a global crontab spec
                 previousSynchronousPolling = scmd.getExecutor().submit(new DependencyRunner(new ProjectRunnable() {
                     public void run(AbstractProject p) {
+                        if (!p.isBuildable()) {
+                            return; //skip disabled/copied project
+                        }
+
                         for (Trigger t : (Collection<Trigger>) p.getTriggers().values()) {
                             if (t instanceof SCMTrigger) {
                                 LOGGER.fine("synchronously triggering SCMTrigger for project " + t.job.getName());
@@ -256,6 +262,12 @@ public abstract class Trigger<J extends Item> implements Describable<Trigger<?>>
 
         // Process all triggers, except SCMTriggers when synchronousPolling is set
         for (ParameterizedJobMixIn.ParameterizedJob p : inst.getAllItems(ParameterizedJobMixIn.ParameterizedJob.class)) {
+            if (p instanceof AbstractProject<?, ?>) {
+               if (!((AbstractProject) p).isBuildable()) {
+                   continue; // skip disabled/copied project
+               }
+            }
+
             for (Trigger t : p.getTriggers().values()) {
                 if (! (t instanceof SCMTrigger && scmd.synchronousPolling)) {
                     LOGGER.log(Level.FINE, "cron checking {0} with spec ‘{1}’", new Object[] {p, t.spec.trim()});