title: How do we see the logs (from Logger instances) in production forGoogle Dataflow?
body: <p>I have a ParDo function that works when running over 100K instances but fails when I try to run over billion records. At that point, I can't run using DirectPipelineRunner and have to switch to DataflowPipelineRunner or BlockingDataflowPipelineRunner. I have a logger instantiated as below in my DoFn:</p>
  
  <pre><code>private static final Logger LOG = LoggerFactory.getLogger(EventPipeline.class);
  </code></pre>
  
  <p>However, I don't see output of <code>LOG.error('...')</code> in the cloud logs when I click <code>View Logs</code> button next to my job. I even switched to <code>worker</code> and log-level to <code>any log level</code> in the options.</p>
  
  <p>Am I missing something obvious?</p>