yapxue opened a new pull request, #17182:
URL: https://github.com/apache/pulsar/pull/17182
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### Motivation
*consumer client has method pause(), but consumer is not really paused.
paused consumer only stop send flow permit request to broker but broker still
can push messages to consumer if there is already existed flow permit. consumer
can get messages if it invoked consumer.receive(). This may mislead users since
no message is expected after pause. *
### Modifications
*park for some time if consumer is paused. consumer hold prefetched messages
in client cache.*
### Verifying this change
- [ ] Make sure that the change passes the CI checks.
This change added tests and can be verified as follows:
*(example:)*
- *Added integration tests for end-to-end deployment with large payloads
(10MB)*
- *Extended integration test for recovery after broker failure*
### Does this pull request potentially affect one of the following parts:
*If `yes` was chosen, please highlight the changes*
- Dependencies (does it add or upgrade a dependency): (no)
- The public API: (no)
- The schema: (no)
- The default values of configurations: (no)
- The wire protocol: (no)
- The rest endpoints: (no)
- The admin cli options: (no)
- Anything that affects deployment: (no)
### Documentation
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