kafka protocol_error ai_generated true

org.apache.kafka.common.errors.MemberIdRequiredException: JoinGroup request with empty member id failed

ID: kafka/member-id-required

Also available as: JSON · Markdown · 中文

88%Fix Rate

85%Confidence

1Evidence

2023-11-15First Seen

Version Compatibility

Version	Status	Introduced	Deprecated	Notes
Kafka 3.5.0	active	—	—	—
Kafka 3.6.0	active	—	—	—
Kafka 3.7.0	active	—	—	—

Root Cause

Consumer group member did not provide a valid member ID during initial join, causing the coordinator to reject the request.

generic

中文

消费者组成员在初始加入时未提供有效成员ID，导致协调器拒绝请求。

Official Documentation

https://kafka.apache.org/documentation/#consumerconfigs_group.id

Workarounds

88% success Set 'member.id' explicitly in consumer properties, or upgrade client library to handle automatic member ID generation. Example: properties.put(ConsumerConfig.CLIENT_ID_CONFIG, "my-consumer-" + UUID.randomUUID()); properties.put(ConsumerConfig.GROUP_ID_CONFIG, "my-group");
```
Set 'member.id' explicitly in consumer properties, or upgrade client library to handle automatic member ID generation.
Example:
properties.put(ConsumerConfig.CLIENT_ID_CONFIG, "my-consumer-" + UUID.randomUUID());
properties.put(ConsumerConfig.GROUP_ID_CONFIG, "my-group");
```
92% success Use a newer Kafka client version (>= 3.5.0) that includes fix for KAFKA-14015. Command: # Check current client version kafka-consumer-groups --bootstrap-server localhost:9092 --group my-group --describe # Upgrade via Maven: <dependency> <groupId>org.apache.kafka</groupId> <artifactId>kafka-clients</artifactId> <version>3.6.0</version> </dependency>
```
Use a newer Kafka client version (>= 3.5.0) that includes fix for KAFKA-14015.
Command:
# Check current client version
kafka-consumer-groups --bootstrap-server localhost:9092 --group my-group --describe
# Upgrade via Maven:
<dependency>
  <groupId>org.apache.kafka</groupId>
  <artifactId>kafka-clients</artifactId>
  <version>3.6.0</version>
</dependency>
```

中文步骤

Set 'member.id' explicitly in consumer properties, or upgrade client library to handle automatic member ID generation.
Example:
properties.put(ConsumerConfig.CLIENT_ID_CONFIG, "my-consumer-" + UUID.randomUUID());
properties.put(ConsumerConfig.GROUP_ID_CONFIG, "my-group");

Use a newer Kafka client version (>= 3.5.0) that includes fix for KAFKA-14015.
Command:
# Check current client version
kafka-consumer-groups --bootstrap-server localhost:9092 --group my-group --describe
# Upgrade via Maven:
<dependency>
  <groupId>org.apache.kafka</groupId>
  <artifactId>kafka-clients</artifactId>
  <version>3.6.0</version>
</dependency>

Dead Ends

Common approaches that don't work:

Increase session.timeout.ms to avoid rebalances 70% fail
Does not address the root cause of missing member ID; session timeout only affects heartbeat timing.
Disable group.id in consumer config 95% fail
Removing group.id prevents the consumer from joining any group, leading to a different error.
Restart all consumers simultaneously 60% fail
Race condition persists; member IDs are generated per session, not per restart.