TakaHiR07 opened a new pull request, #20509:
URL: https://github.com/apache/pulsar/pull/20509
Master Issue: #20508
### Motivation
Fix the single point of failure in pulsar client.
If client config with multiple serviceUrl, it should retry connect
successfully when only one broker in config shutdown.
### Modifications
1. When client getConnection of topicName, each topicName use different
serviceUrl index to do retry operation. Which make sure the retry logic is
roundrobin, but not random
2. add unit test to test this bug case
There is still something to do, such as simplify the api method, and
deprecate the previous getConnection(topic) method. But I think it is better to
discuss this fix first and implement them in additional pr.
### Verifying this change
- [ ] Make sure that the change passes the CI checks.
*(Please pick either of the following options)*
This change is a trivial rework / code cleanup without any test coverage.
*(or)*
This change is already covered by existing tests, such as *(please describe
tests)*.
*(or)*
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:
<!-- DO NOT REMOVE THIS SECTION. CHECK THE PROPER BOX ONLY. -->
*If the box was checked, please highlight the changes*
- [ ] Dependencies (add or upgrade a dependency)
- [x] The public API
- [ ] The schema
- [ ] The default values of configurations
- [ ] The threading model
- [ ] The binary protocol
- [ ] The REST endpoints
- [ ] The admin CLI options
- [ ] The metrics
- [ ] Anything that affects deployment
### Documentation
<!-- DO NOT REMOVE THIS SECTION. CHECK THE PROPER BOX ONLY. -->
- [ ] `doc` <!-- Your PR contains doc changes. -->
- [ ] `doc-required` <!-- Your PR changes impact docs and you will update
later -->
- [x] `doc-not-needed` <!-- Your PR changes do not impact docs -->
- [ ] `doc-complete` <!-- Docs have been already added -->
### Matching PR in forked repository
PR in forked repository: <!-- ENTER URL HERE -->
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