title: What's "EIO: i/o error, write" in node.js and how do I eliminate it?
body: <p>I have a node.js app using elasticsearch to gather error data and notify relevant stack holders. It starts to give me errors lately (no change has made to the code):</p>
  
  <pre><code>write EIO
  Error: write EIO
      at afterWriteDispatched (internal/stream_base_commons.js:154:25)
      at writeGeneric (internal/stream_base_commons.js:145:3)
      at WriteStream.Socket._writeGeneric (net.js:783:11)
      at WriteStream.Socket._write (net.js:795:8)
      at doWrite (_stream_writable.js:385:12)
      at writeOrBuffer (_stream_writable.js:367:5)
      at WriteStream.Writable.write (_stream_writable.js:307:12)
      at Stdio.write (/project/node_modules/elasticsearch/src/lib/loggers/stdio.js:58:6)
      at Stdio.onError (/project/node_modules/elasticsearch/src/lib/loggers/stdio.js:70:8)
      at Log.wrapper (/project/node_modules/lodash/lodash.js:4929:19)
      at Log.emit (events.js:315:20)
      at Log.error (/project/node_modules/elasticsearch/src/lib/log.js:239:17)
      at checkRespForFailure (/project/node_modules/elasticsearch/src/lib/transport.js:298:18)
      at HttpConnector.&lt;anonymous&gt; (/project/node_modules/elasticsearch/src/lib/connectors/http.js:171:7)
      at ClientRequest.wrapper (/project/node_modules/lodash/lodash.js:4929:19)
      at ClientRequest.emit (events.js:315:20)
  </code></pre>
  
  <p>I suspect this has to do with some type of I/O error on the disk. What can I do to eliminate the error? I am using Node.js v14.0.0 and elasticsearch (npm package) 16.7.1.</p>