Error: Unable to assemble data

[thynson]

Questions?

• [x] Check the Troubleshooting / FAQ ?
• [x] Search the issues ?

We recently struggled with a HighLevelComsumer error, with message "Unable to assemble data", raised from here. What could be the reason cause such error, or it's a bug of this library? stacktrace:

FailedToRebalanceConsumerError
    at new FailedToRebalanceConsumerError (/home/git/xxxxxxxxxxxx/node_modules/_kafka-node@2.6.1@kafka-node/lib/errors/FailedToRebalanceConsumerError.js:11:9)
    at /home/git/xxxxxxxxxxxx/node_modules/_kafka-node@2.6.1@kafka-node/lib/highLevelConsumer.js:190:39
    at /home/git/xxxxxxxxxxxx/node_modules/_kafka-node@2.6.1@kafka-node/lib/highLevelConsumer.js:490:9
    at /home/git/xxxxxxxxxxxx/node_modules/_async@2.6.1@async/dist/async.js:3888:9
    at /home/git/xxxxxxxxxxxx/node_modules/_async@2.6.1@async/dist/async.js:473:16
    at iterateeCallback (/home/git/xxxxxxxxxxxx/node_modules/_async@2.6.1@async/dist/async.js:988:17)
    at /home/git/xxxxxxxxxxxx/node_modules/_async@2.6.1@async/dist/async.js:969:16
    at /home/git/xxxxxxxxxxxx/node_modules/_async@2.6.1@async/dist/async.js:3885:13
    at /home/git/xxxxxxxxxxxx/node_modules/_kafka-node@2.6.1@kafka-node/lib/highLevelConsumer.js:381:11
    at /home/git/xxxxxxxxxxxx/node_modules/_kafka-node@2.6.1@kafka-node/lib/zookeeper.js:217:9
    at /home/git/xxxxxxxxxxxx/node_modules/_async@2.6.1@async/dist/async.js:3888:9
    at /home/git/xxxxxxxxxxxx/node_modules/_async@2.6.1@async/dist/async.js:473:16
    at iterateeCallback (/home/git/xxxxxxxxxxxx/node_modules/_async@2.6.1@async/dist/async.js:988:17)
    at /home/git/xxxxxxxxxxxx/node_modules/_async@2.6.1@async/dist/async.js:969:16
    at /home/git/xxxxxxxxxxxx/node_modules/_async@2.6.1@async/dist/async.js:3885:13
    at /home/git/xxxxxxxxxxxx/node_modules/_kafka-node@2.6.1@kafka-node/lib/zookeeper.js:170:19

Environment

• Node version: 8.6.0
• Kafka-node version: 2.6.1
• Kafka version: 0.10

For specific cases also provide

• Number of Brokers:
• Number partitions for topic: 2

Include Sample Code to reproduce behavior

Thanks for your contribution!

[hyperlink]

Have you tried using KafkaClient instead of Client?