core: pm2 cluster management

packages/hydrooj/src/handler/judge.ts

@@ -151,11 +151,11 @@ class JudgeConnectionHandler extends ConnectionHandler {
         if (this.processing) return;
         let t;
         while (!t) {
-            // eslint-disable-next-line no-await-in-loop
-            await sleep(100);
             if (this.closed) return;
             // eslint-disable-next-line no-await-in-loop
             t = await task.getFirst(this.query);
+            // eslint-disable-next-line no-await-in-loop
+            if (!t) await sleep(500);
         }
         this.send({ task: t });
         this.processing = t;

packages/hydrooj/src/handler/manage.ts

@@ -89,8 +89,7 @@ class SystemDashboardHandler extends SystemHandler {
     }
 
     async postRestart() {
-        const count = system.get('server.worker');
-        process.send({ event: 'restart', payload: [count] });
+        // TODO handle restart
         this.back();
     }
 }