bugfixes

ingestor/src/zmq-client.js

@@ -1,5 +1,6 @@
 // ZeroMQ DEALER client connecting to Flink IngestorBroker (ROUTER, port 5567)
 import * as zmq from 'zeromq';
+import os from 'os';
 import {
   DataRequest,
   WorkerReady, WorkComplete, WorkHeartbeat, WorkReject, WorkStop,
@@ -44,6 +45,13 @@ export class ZmqClient {
 
     this.dealerSocket = new zmq.Dealer();
 
+    // Set a stable routing ID so the ROUTER always recognises this peer, even
+    // after a TCP reconnect.  Without this, ZMQ assigns a new random identity
+    // on every reconnect, leaving dead slots in the broker's queue → Errno 65.
+    const stableId = os.hostname();
+    this.dealerSocket.routingId = stableId;
+    this.logger.info({ routingId: stableId }, 'Set stable DEALER routing ID');
+
     // Subscribe to connection events BEFORE calling connect() so we catch the
     // initial establishment.  The 'connect' event fires on initial TCP handshake
     // and again after every ZMQ reconnect (e.g. Flink restart).