Update lib/mcp/server.js

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Signed-off-by: Brian Horakh <35611074+elasticdotventures@users.noreply.github.com>

Author: elasticdotventures

lib/mcp/server.js

@@ -129,23 +129,33 @@ function errorResult(err) {
   };
 }
 
+let connectionPromise = null;
+
 async function ensureConnected() {
   if (isConnected) return;
-  log('connecting to PM2 (noDaemon default true, override with PM2_MCP_NO_DAEMON)');
-  await new Promise((resolve, reject) => {
-    // Default to no-daemon mode so the MCP server can start without needing an existing PM2 daemon.
-    const noDaemon =
-      process.env.PM2_MCP_NO_DAEMON === undefined
-        ? true
-        : process.env.PM2_MCP_NO_DAEMON === 'true';
-    log('pm2.connect noDaemon=%s', noDaemon);
-    pm2.connect(noDaemon, err => {
-      if (err) return reject(err);
-      isConnected = true;
-      log('connected to PM2');
-      return resolve();
+  if (connectionPromise) return connectionPromise;
+  connectionPromise = (async () => {
+    log('connecting to PM2 (noDaemon default true, override with PM2_MCP_NO_DAEMON)');
+    await new Promise((resolve, reject) => {
+      // Default to no-daemon mode so the MCP server can start without needing an existing PM2 daemon.
+      const noDaemon =
+        process.env.PM2_MCP_NO_DAEMON === undefined
+          ? true
+          : process.env.PM2_MCP_NO_DAEMON === 'true';
+      log('pm2.connect noDaemon=%s', noDaemon);
+      pm2.connect(noDaemon, err => {
+        if (err) return reject(err);
+        isConnected = true;
+        log('connected to PM2');
+        return resolve();
+      });
     });
-  });
+  })();
+  try {
+    await connectionPromise;
+  } finally {
+    connectionPromise = null;
+  }
 }
 
 async function disconnectPm2() {