mantuliu opened a new issue #10750:
URL: https://github.com/apache/pulsar/issues/10750
**Describe the bug**
Key_shared mode is configured as ConsistentHashingStickyKeyConsumerSelector,
When I use three consumers with the same consumerName, if one consumer is
closed, the other two consumers will no longer be able to consume messages.
**To Reproduce**
Steps to reproduce the behavior:
1. config the 'conf/standalone.conf'
```
subscriptionKeySharedUseConsistentHashing=true
```
2. ./bin/pulsar standalone
3. Start 3 consumers with the same cosumerName.
```
PulsarClient client = PulsarClient.builder()
.serviceUrl("pulsar://localhost:6650")
.build();
org.apache.pulsar.client.api.Consumer consumer = client.newConsumer()
.topic("my-topic")
.subscriptionName("my-subscription")
.consumerName("one")
.subscriptionType(SubscriptionType.Key_Shared)
.subscribe();
```
4. Start a producer send messages.
5. All 3 consumers can consume messages.
6. Close one consumer, and the producer send messages again.
7. **The other two consumers cannot consume new messages**
**Expected behavior**
The other two consumers can continue to consume new messages(Refer to step 7
above).
**Additional context**
https://github.com/apache/pulsar/blob/e19f6472183ac93dc058a96f7ac0537c22d90e18/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/ConsistentHashingStickyKeyConsumerSelector.java#L93
I think the problem is due to the above code, which removes all consumers
with the same name.
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