Release/v6.2.4 (#97)

* Issue #94: restart workers that exit by error or by signal

* Issue #95: fix worker memory leak - delete cluster message callback data after use

* Bumping version to 6.2.4

Author: stephen-palmer

lib/cluster_messages.js

@@ -42,6 +42,7 @@ class ClusterMessages extends EventEmitter {
                 if(!cb) return;
 
                 cb.resolve(message.result);
+                delete this._callbacks[message.msgId];
             });
         }
     }

lib/unity_cache_server.js

@@ -185,6 +185,16 @@ class UnityCacheServer {
             for(let i = 0; i < workers; i++) {
                 cluster.fork();
             }
+
+            cluster.on('exit', (deadWorker, code, signal) => {
+                if (signal) {
+                    console.log(`[Cluster: ${deadWorker.id}] !Process killed by signal: ${signal}`);
+                } else if (code !== 0) {
+                    console.log(`[Cluster: ${deadWorker.id}] !Process exited with error code: ${code}`);
+                }
+
+                cluster.fork();
+            });
         }
 
         if(cluster.isWorker || workers === 0) {

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "unity-cache-server",
-  "version": "6.2.3",
+  "version": "6.2.4",
   "description": "Unity Cache Server",
   "main": "lib/index.js",
   "engines": {