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Multiple backports - #19266

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Caideyipi wants to merge 4 commits into
rc/2.0.12from
multi
Open

Caideyipi wants to merge 4 commits into
rc/2.0.12from
multi

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@Caideyipi

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Description

As the title said.


This PR has:

  • been self-reviewed.
    • concurrent read
    • concurrent write
    • concurrent read and write
  • added documentation for new or modified features or behaviors.
  • added Javadocs for most classes and all non-trivial methods.
  • added or updated version, license, or notice information
  • added comments explaining the "why" and the intent of the code wherever would not be obvious
    for an unfamiliar reader.
  • added unit tests or modified existing tests to cover new code paths, ensuring the threshold
    for code coverage.
  • added integration tests.
  • been tested in a test IoTDB cluster.

Key changed/added classes (or packages if there are too many classes) in this PR

Caideyipi and others added 4 commits November 13, 2026 18:54
* Fix subscription provider recovery after broker loss

* Preserve subscription state during provider recovery

Close stale sessions without dropping subscriptions, keep provider failures terminal, ignore retired heartbeat results, and stop recovery after consumer close. Recognize file and tablet broker-missing poll diagnostics in both server locales and cover the recovery and commit paths with regression tests.

(cherry picked from commit 495f04f)
* Repair missing subscription brokers from consumer metadata

* Fix subscription broker recovery rollback

* Serialize subscription broker repair with region creation

* Add cluster coverage for subscription broker recovery

(cherry picked from commit 389e374)
* Retry explicit subscription commits after connection failures

* Preserve completed subscription commit batches during retries

* Preserve newer subscription checkpoints across commit retries

* Retry transient subscription poll cleanup NACKs

* Retry only unconfirmed subscription acknowledgements

* Preserve subscription ACK progress across concurrent commits and server errors

(cherry picked from commit 07dc281)
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