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Posted to commits@airflow.apache.org by "Lee-W (via GitHub)" <gi...@apache.org> on 2026/06/23 08:26:16 UTC
[PR] Add shared_stream_cohort_grace_period to reduce missed events on trig… [airflow]
Lee-W opened a new pull request, #68888:
URL: https://github.com/apache/airflow/pull/68888
…gerer restart
On triggerer restart, triggers sharing the same key re-subscribe concurrently. Without a grace period the first to arrive creates a fresh group and polling starts immediately; triggers that re-subscribe later miss events committed before they join.
Setting [triggerer] shared_stream_cohort_grace_period to a positive value delays the start of polling after a group is created, giving the initial cohort a window to subscribe before any event is broadcast. Default is 0.0 (no delay, backward-compatible).
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Re: [PR] Add shared_stream_cohort_grace_period to reduce missed events on triggerer restart [airflow]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on PR #68888:
URL: https://github.com/apache/airflow/pull/68888#issuecomment-4786273540
Hi maintainer, this PR was merged without a milestone set.
We've automatically set the milestone to **[Airflow 3.3.1](https://github.com/apache/airflow/milestone/146)** based on: backport label targeting v3-3-test
If this milestone is not correct, please update it to the appropriate milestone.
> This comment was generated by [Milestone Tag Assistant](https://github.com/apache/airflow/blob/main/.github/workflows/milestone-tag-assistant.yml).
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Re: [PR] Add shared_stream_cohort_grace_period to reduce missed events on triggerer restart [airflow]
Posted by "Lee-W (via GitHub)" <gi...@apache.org>.
Lee-W merged PR #68888:
URL: https://github.com/apache/airflow/pull/68888
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Re: [PR] Add shared_stream_cohort_grace_period to reduce missed events on triggerer restart [airflow]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on PR #68888:
URL: https://github.com/apache/airflow/pull/68888#issuecomment-4786275979
### Backport successfully created: v3-3-test
Note: As of [Merging PRs targeted for Airflow 3.X](https://github.com/apache/airflow/blob/main/dev/README_AIRFLOW3_DEV.md#merging-prs-targeted-for-airflow-3x)
the committer who merges the PR is responsible for backporting the PRs that are bug fixes (generally speaking) to the maintenance branches.
In matter of doubt please ask in [#release-management](https://apache-airflow.slack.com/archives/C03G9H97MM2) Slack channel.
<table>
<tr>
<th>Status</th>
<th>Branch</th>
<th>Result</th>
</tr>
<tr>
<td>✅</td>
<td>v3-3-test</td>
<td><a href="https://github.com/apache/airflow/pull/68931"><img src="https://img.shields.io/badge/PR-68931-blue" alt="PR Link"></a></td>
</tr>
</table>
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Re: [PR] Add shared_stream_cohort_grace_period to reduce missed events on triggerer restart [airflow]
Posted by "Lee-W (via GitHub)" <gi...@apache.org>.
Lee-W commented on PR #68888:
URL: https://github.com/apache/airflow/pull/68888#issuecomment-4778376165
cc @FrankYang0529
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