codelipenghui opened a new pull request #4079: PIP-34 Key_Shared subscription core implementation. URL: https://github.com/apache/pulsar/pull/4079 ### Motivation This is a core implementation for [PIP-34](https://github.com/apache/pulsar/wiki/PIP-34%3A-Add-new-subscribe-type-Key_Failover) and there is a task tracker [ISSUE-4077](https://github.com/apache/pulsar/issues/4077) for this PIP ### Modifications - Add a new subscription type named Key_Shared - Add PersistentStickyKeyDispatcherMultipleConsumers to handle the message dispatch - Add a simple hash range based consumer selector ### Verifying this change Add new unit tests to verifying the hash range selector and Key_Shared mode message consume. ### 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): (yes / no) - The public API: (yes) - The schema: (no) - The default values of configurations: (no) - The wire protocol: (yes) - The rest endpoints: (no) - The admin cli options: (no) - Anything that affects deployment: (no) ### Documentation - Does this pull request introduce a new feature? (yes) - If yes, how is the feature documented? (not documented) - If a feature is not documented yet in this PR, please create a followup issue for adding the documentation [ISSUE-4077](https://github.com/apache/pulsar/issues/4077) will track the task of documentation for this PR.
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