check if the process is running (#607)

Author: pepoviola

javascript/packages/orchestrator/src/providers/native/nativeClient.ts

@@ -346,6 +346,16 @@ export class NativeClient extends Client {
   }
 
   async wait_node_ready(nodeName: string, logFile: string): Promise<void> {
+    // check if the process is alive
+    const result = await this.runCommand([
+      "-c",
+      `ps ${this.processMap[nodeName].pid}`,
+    ]);
+    if (result.exitCode > 0)
+      throw new Error(
+        `Process: ${this.processMap[nodeName].pid}, for node: ${nodeName} dies`,
+      );
+
     // loop until ready
     let t = this.timeout;
     const args = [