jon-wei closed pull request #6364: fix incorrect precondition check in 
SupervisorManager.suspendOrResumeSupervisor
URL: https://github.com/apache/incubator-druid/pull/6364
 
 
   

This is a PR merged from a forked repository.
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diff --git 
a/indexing-service/src/main/java/org/apache/druid/indexing/overlord/supervisor/SupervisorManager.java
 
b/indexing-service/src/main/java/org/apache/druid/indexing/overlord/supervisor/SupervisorManager.java
index cca6fe51bd8..22fd82746a7 100644
--- 
a/indexing-service/src/main/java/org/apache/druid/indexing/overlord/supervisor/SupervisorManager.java
+++ 
b/indexing-service/src/main/java/org/apache/druid/indexing/overlord/supervisor/SupervisorManager.java
@@ -95,7 +95,7 @@ public boolean suspendOrResumeSupervisor(String id, boolean 
suspend)
   {
     Preconditions.checkState(started, "SupervisorManager not started");
     Pair<Supervisor, SupervisorSpec> pair = supervisors.get(id);
-    Preconditions.checkNotNull(pair.lhs, "spec");
+    Preconditions.checkNotNull(pair.rhs, "spec");
     synchronized (lock) {
       Preconditions.checkState(started, "SupervisorManager not started");
       SupervisorSpec nextState = suspend ? pair.rhs.createSuspendedSpec() : 
pair.rhs.createRunningSpec();


 

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