Github user tweise commented on a diff in the pull request:
https://github.com/apache/incubator-apex-core/pull/314#discussion_r60839381
--- Diff:
engine/src/main/java/com/datatorrent/stram/plan/physical/PhysicalPlan.java ---
@@ -979,6 +998,14 @@ public void deployChanges() {
this.undeployOpers.removeAll(newOpers.keySet());
//make sure all the new operators are included in deploy operator list
this.deployOpers.addAll(this.newOpers.keySet());
+ // redeploy dependencies of the new operators excluding the new
operators themselves
+ Set<PTOperator> ndeps = getDependents(newOpers.keySet());
+ ndeps.removeAll(newOpers.keySet());
+ // don't redeploy operators already going to be undeployed
+ ndeps.removeAll(this.undeployOpers);
+ // redeploy remaining dependencies
+ this.undeployOpers.addAll(ndeps);
+ this.deployOpers.addAll(ndeps);
--- End diff --
This shouldn't be required. Next line already includes dependencies.
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