Throws error `Cannot read property 'length' of undefined` on StreamChopper.Writable.write()

[elastic]

Throws error `Cannot read property 'length' of undefined` on StreamChopper.Writable.write()

[SimonSimCity]

This stack-trace might also be related to it:

Uncaught Exception: RangeError: Invalid string length
    at objs.reduce (./node_modules/elastic-apm-http-client/index.js:272:19)
    at Array.reduce (<anonymous>)
    at Client._writevCleaned (./node_modules/elastic-apm-http-client/index.js:271:22)
    at processBatch (./node_modules/elastic-apm-http-client/index.js:249:12)
    at Client._writev (./node_modules/elastic-apm-http-client/index.js:267:3)
    at doWrite (./node_modules/readable-stream/lib/_stream_writable.js:405:97)
    at clearBuffer (./node_modules/readable-stream/lib/_stream_writable.js:501:5)
    at onwrite (./node_modules/readable-stream/lib/_stream_writable.js:451:7)
    at WritableState.onwrite (./node_modules/readable-stream/lib/_stream_writable.js:158:5)
    at afterWrite (./node_modules/readable-stream/lib/_stream_writable.js:465:3)
    at onwrite (./node_modules/readable-stream/lib/_stream_writable.js:457:7)
    at WritableState.onwrite (./node_modules/readable-stream/lib/_stream_writable.js:158:5)
    at StreamChopper.ondrain [as _ondrain] (./node_modules/stream-chopper/index.js:59:5)
    at StreamChopper._removeStream (./node_modules/stream-chopper/index.js:182:45)
    at StreamChopper._endStream (./node_modules/stream-chopper/index.js:165:8)
    at StreamChopper._maybeEndTransformSteam (./node_modules/stream-chopper/index.js:137:27)
    at Gzip._stream.on.chunk (./node_modules/stream-chopper/index.js:94:14)
    at emitOne (events.js:121:20)
    at Gzip.emit (events.js:211:7)
    at addChunk (_stream_readable.js:263:12)
    at readableAddChunk (_stream_readable.js:250:11)
    at Gzip.Readable.push (_stream_readable.js:208:10)
    at Gzip.Transform.push (_stream_transform.js:147:32)
    at Zlib.callback (zlib.js:474:14)

[Qard]

Have you tried updating to the latest release? It's currently at 9.2.0 and that specific code was rewritten awhile ago.

[SimonSimCity]

I'll update and reopen this if I see the issue again. It happened just very occasional ...