cluster: do not synchronously emit 'setup' event

This is a problem present in both v0.10, and v0.11, where the 'setup'
event is synchronously emitted by `cluster.setupMaster()`, a mostly
harmless anti-pattern.

1 files changed, 3 insertions, 1 deletions

diff --git a/lib/cluster.js b/lib/cluster.js
index f75fda521..4f8fb8c45 100644
--- a/lib/cluster.js
+++ b/lib/cluster.js
@@ -269,7 +269,9 @@ function masterInit() {
         process._debugProcess(cluster.workers[key].process.pid);
     });
 
-    cluster.emit('setup');
+    process.nextTick(function() {
+      cluster.emit('setup');
+    });
   };
 
   var ids = 0;