fix: increase max listeners of Worker (#2)

ChainSafe · Jul 12, 2023 · f47f20b · f47f20b
1 parent df35155
commit f47f20b
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/src/master/implementation.node.ts b/src/master/implementation.node.ts
@@ -124,6 +124,11 @@ function initWorkerThreadsWorker(): ImplementationExport {
         super(resolvedScriptPath, options)
       }
 
+      // Worker event emitter can have more than 10 listeners during normal operation
+      // Increase max listeners to prevent MaxListenersExceededWarning
+      // See https://github.com/ChainSafe/lodestar/issues/5552
+      this.setMaxListeners(100)
+
       this.mappedEventListeners = new WeakMap()
       allWorkers.push(this)
     }