ERROR: The group is rebalancing, so a rejoin is needed

Hi,

i need some help with the error message from the title. I read this issue, which seems to be related:

https://github.com/tulios/kafkajs/issues/226

I also read the documentation here, which also seems to be related: https://kafka.js.org/docs/faq#what-does-it-mean-to-get-rebalance_in_progress-errors

However, it doesnt matter what i try the errors are remaining. It only occures when i redeploy my application and unfortunately it always triggers our alerting system, which is annoying.

Here is the log from my application:

{"loglevel":"error","msg":"ERROR [Connection] Response Heartbeat(key: 12, version: 1) {\"timestamp\":\"2020-04-06T10:32:41.900Z\",\"logger\":\"kafkajs\",\"broker\":\"kafka-2:9093\",\"clientId\":\"my-custom-client-id-server\",\"error\":\"The group is rebalancing, so a rejoin is needed\",\"correlationId\":16,\"size\":10}"}
{"loglevel":"error","msg":"ERROR [Runner] The group is rebalancing, re-joining {\"timestamp\":\"2020-04-06T10:32:41.901Z\",\"logger\":\"kafkajs\",\"groupId\":\"my-custom-client-id-v001-server\",\"memberId\":\"my-custom-client-id-server-bea7349c-32f2-4855-92a2-c2549f172082\",\"error\":\"The group is rebalancing, so a rejoin is needed\",\"retryCount\":0,\"retryTime\":3560}"}
{"loglevel":"error","msg":"ERROR [Connection] Response SyncGroup(key: 14, version: 1) {\"timestamp\":\"2020-04-06T10:33:41.906Z\",\"logger\":\"kafkajs\",\"broker\":\"kafka-2:9093\",\"clientId\":\"my-custom-client-id-server\",\"error\":\"The group is rebalancing, so a rejoin is needed\",\"correlationId\":18,\"size\":14}"}
{"loglevel":"info","msg":"INFO [Runner] Consumer has joined the group {\"timestamp\":\"2020-04-06T10:35:41.919Z\",\"logger\":\"kafkajs\",\"groupId\":\"my-custom-client-id-v001-server\",\"memberId\":\"my-custom-client-id-server-bea7349c-32f2-4855-92a2-c2549f172082\",\"leaderId\":\"my-custom-client-id-server-0b9827ef-9e82-4343-96d7-3bee2053c449\",\"isLeader\":false,\"memberAssignment\":{\"my-topic-1\":[11,15,19,23,27,3,31,35,39,7],\"my-topic-2\":[11,15,19,23,27,3,31,35,39,7]},\"groupProtocol\":\"RoundRobinAssigner\",\"duration\":180018}"}
{"loglevel":"error","msg":"ERROR [Connection] Response Heartbeat(key: 12, version: 1) {\"timestamp\":\"2020-04-06T10:37:17.024Z\",\"logger\":\"kafkajs\",\"broker\":\"kafka-2:9093\",\"clientId\":\"my-custom-client-id-server\",\"error\":\"The group is rebalancing, so a rejoin is needed\",\"correlationId\":45,\"size\":10}"}
{"loglevel":"error","msg":"ERROR [Runner] The group is rebalancing, re-joining {\"timestamp\":\"2020-04-06T10:37:17.025Z\",\"logger\":\"kafkajs\",\"groupId\":\"my-custom-client-id-v001-server\",\"memberId\":\"my-custom-client-id-server-bea7349c-32f2-4855-92a2-c2549f172082\",\"error\":\"The group is rebalancing, so a rejoin is needed\",\"retryCount\":0,\"retryTime\":2618}"}
{"loglevel":"info","msg":"INFO [Runner] Consumer has joined the group {\"timestamp\":\"2020-04-06T10:37:41.916Z\",\"logger\":\"kafkajs\",\"groupId\":\"my-custom-client-id-v001-server\",\"memberId\":\"my-custom-client-id-server-bea7349c-32f2-4855-92a2-c2549f172082\",\"leaderId\":\"my-custom-client-id-server-69d3bcd8-a1d9-428f-8742-142ccb674b67\",\"isLeader\":false,\"memberAssignment\":{\"my-topic-1\":[1,11,13,15,17,19,21,23,25,27,29,3,31,33,35,37,39,5,7,9],\"my-topic-2\":[1,11,13,15,17,19,21,23,25,27,29,3,31,33,35,37,39,5,7,9]},\"groupProtocol\":\"RoundRobinAssigner\",\"duration\":24891}"}

I already tried to increase the following config parameters.

maxRetryTime,sessionTimeout, rebalanceTimeout,heartbeatInterval

Neither helped, any hints would be greatly apprechiated.