apache/hadoop · error · IOException

Invalid response status code: {code}

Error message

Invalid response status code: {code}

What it means

Error "Invalid response status code: {code}" thrown in apache/hadoop.

Source

Thrown at hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/JobEndNotifier.java:92

        .setSocketTimeout(timeout)
        .build());
    HttpClient client = httpClientBuilder.build();
    HttpGet httpGet = new HttpGet(new URI(uri));
    httpGet.setHeader("Accept", "*/*");
    return client.execute(httpGet).getStatusLine().getStatusCode();
  }

  // for use by the LocalJobRunner, without using a thread&queue,
  // simple synchronous way
  public static void localRunnerNotification(JobConf conf, JobStatus status) {
    JobEndStatusInfo notification = createNotification(conf, status);
    if (notification != null) {
      do {
        try {
          int code = httpNotification(notification.getUri(),
              notification.getTimeout());
          if (code != 200) {
            throw new IOException("Invalid response status code: " + code);
          }
          else {
            break;
          }
        }
        catch (IOException ioex) {
          LOG.error("Notification error [" + notification.getUri() + "]", ioex);
        }
        catch (Exception ex) {
          LOG.error("Notification error [" + notification.getUri() + "]", ex);
        }
        try {
          Thread.sleep(notification.getRetryInterval());
        }
        catch (InterruptedException iex) {
          LOG.error("Notification retry error [" + notification + "]", iex);
        }
      } while (notification.configureForRetry());

View on GitHub (pinned to 2add963021)

Solutions

1. Check the job end notification URL (mapreduce.job.end.notification.url); the endpoint must return HTTP 200, or adjust mapreduce.job.end.notification.retry.attempts/interval.

When it happens

Trigger: Thrown at hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/JobEndNotifier.java:92 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of apache/hadoop@2add963021 (2026-08-22). Data as JSON: /api/errors/8d32faf592272431. Report an issue: GitHub.