feat(dag_command.py): change to use bulk clear - #68280

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Lee-W merged 3 commits into
apache:mainfrom
FrankYang0529:airflow-67484
Jun 12, 2026
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feat(dag_command.py): change to use bulk clear#68280
Lee-W merged 3 commits into
apache:mainfrom
FrankYang0529:airflow-67484

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@FrankYang0529FrankYang0529 commented Jun 9, 2026

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closes: #67484

Why

airflow dags clear (#66004) loops dag.clear(run_id=...) once per matched run, issuing a separate SELECT + flush for each. A wide --partition-date-* window or broad --partition-key therefore costs N independent transactions.

How

Replace the per-run loop with a _bulk_clear_runs helper:

  • Iterates run_ids in chunks of _RUN_CHUNK_SIZE (500), fetching all matching TIs for each chunk with a single query.
  • Passes the entire chunk's TIs to clear_task_instances in one call.

Two new tests:

  • test_clears_multiple_runs_in_one_batch: asserts that 3 runs fitting in one chunk result in exactly one clear_task_instances call.
  • test_chunks_on_run_boundaries_clears_each_run_once: patches _RUN_CHUNK_SIZE to 2. 3 runs span 2 chunks.
Was generative AI tooling used to co-author this PR?
  • Yes (please specify the tool below)

Claude Code with Claude Opus 4.8

  • Read the Pull Request Guidelines for more information. Note: commit author/co-author name and email in commits become permanently public when merged.
  • For fundamental code changes, an Airflow Improvement Proposal (AIP) is needed.
  • When adding dependency, check compliance with the ASF 3rd Party License Policy.
  • For significant user-facing changes create newsfragment: {pr_number}.significant.rst, in airflow-core/newsfragments. You can add this file in a follow-up commit after the PR is created so you know the PR number.

@FrankYang0529
FrankYang0529 marked this pull request as draft June 9, 2026 11:44
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Comment threadairflow-core/src/airflow/cli/commands/dag_command.py Outdated
Comment threadairflow-core/src/airflow/cli/commands/dag_command.py Outdated
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@Lee-W
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mostly good. a few nit

Comment threadairflow-core/src/airflow/cli/commands/dag_command.py Outdated
Comment threadairflow-core/src/airflow/cli/commands/dag_command.py Outdated
Comment threadairflow-core/tests/unit/cli/commands/test_dag_command.py Outdated
Comment threadairflow-core/tests/unit/cli/commands/test_dag_command.py Outdated
@Lee-W
Lee-W requested a review from jason810496June 11, 2026 09:28
@Lee-WLee-W moved this to In Review in AIP-76 Asset PartitioningJun 11, 2026
@FrankYang0529@Lee-W
feat(dag_command.py): change to use bulk clear
4b9c9c0
Signed-off-by: PoAn Yang <payang@apache.org>
@FrankYang0529@Lee-W
feat(dag_command.py): add dag_id to _bulk_clear_runs
1db3642
Signed-off-by: PoAn Yang <payang@apache.org>
@FrankYang0529@Lee-W
feat(clear): use util chunks function and combine duplicated test cases
d4747a2
Signed-off-by: PoAn Yang <payang@apache.org>
jason810496
jason810496 approved these changes Jun 12, 2026
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LGTM overall, thanks!

@Lee-W
Lee-W merged commit def50a9 into apache:mainJun 12, 2026
72 checks passed
@FrankYang0529
FrankYang0529 deleted the airflow-67484 branch June 12, 2026 11:25
@vatsrahul1001vatsrahul1001 added this to the Airflow 3.3.0 milestone Jun 15, 2026
imrichardwu pushed a commit to imrichardwu/airflow that referenced this pull request Jun 16, 2026
@FrankYang0529@imrichardwu
feat(dag_command.py): change to use bulk clear (apache#68280)
be5a181
dingo4dev pushed a commit to dingo4dev/airflow that referenced this pull request Jun 16, 2026
@FrankYang0529@dingo4dev
feat(dag_command.py): change to use bulk clear (apache#68280)
e7b8e02
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Bulk-clear path for airflow dags clear to avoid N transactions

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@FrankYang0529@Lee-W@jason810496@vatsrahul1001
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
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})();
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feat(dag_command.py): change to use bulk clear - #68280
Merged
Lee-W merged 3 commits into
apache:mainfrom 
FrankYang0529:airflow-67484
Jun 12, 2026
Merged
feat(dag_command.py): change to use bulk clear#68280
Lee-W merged 3 commits into
apache:mainfrom 
FrankYang0529:airflow-67484
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@FrankYang0529FrankYang0529
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Jun 9, 2026

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closes: #67484
Why
airflow dags clear (#66004) loops dag.clear(run_id=...) once per matched run, issuing a separate SELECT + flush for each. A wide --partition-date-* window or broad --partition-key therefore costs N independent transactions.
How
Replace the per-run loop with a _bulk_clear_runs helper:
  • Iterates run_ids in chunks of _RUN_CHUNK_SIZE (500), fetching all matching TIs for each chunk with a single query.
  • Passes the entire chunk's TIs to clear_task_instances in one call.
Two new tests:
  • test_clears_multiple_runs_in_one_batch: asserts that 3 runs fitting in one chunk result in exactly one clear_task_instances call.
  • test_chunks_on_run_boundaries_clears_each_run_once: patches _RUN_CHUNK_SIZE to 2. 3 runs span 2 chunks.
Was generative AI tooling used to co-author this PR?
  •  Yes (please specify the tool below)
Claude Code with Claude Opus 4.8
  • Read the Pull Request Guidelines for more information. Note: commit author/co-author name and email in commits become permanently public when merged.
  • For fundamental code changes, an Airflow Improvement Proposal (AIP) is needed.
  • When adding dependency, check compliance with the ASF 3rd Party License Policy.
  • For significant user-facing changes create newsfragment: {pr_number}.significant.rst, in airflow-core/newsfragments. You can add this file in a follow-up commit after the PR is created so you know the PR number.
@FrankYang0529
FrankYang0529
marked this pull request as draft
June 9, 2026 11:44
Lee-W
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reviewed
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Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
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@FrankYang0529
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marked this pull request as ready for review
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@Lee-W
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mostly good. a few nit
Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
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Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
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Comment threadairflow-core/tests/unit/cli/commands/test_dag_command.py
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Comment threadairflow-core/tests/unit/cli/commands/test_dag_command.py
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@Lee-W
Lee-W
requested a review
from jason810496June 11, 2026 09:28
@Lee-WLee-W
moved this to In Review
in AIP-76 Asset PartitioningJun 11, 2026
@FrankYang0529@Lee-W
feat(dag_command.py): change to use bulk clear
4b9c9c0
Signed-off-by: PoAn Yang <payang@apache.org>
@FrankYang0529@Lee-W
feat(dag_command.py): add dag_id to _bulk_clear_runs
1db3642
Signed-off-by: PoAn Yang <payang@apache.org>
@FrankYang0529@Lee-W
feat(clear): use util chunks function and combine duplicated test cases
d4747a2
Signed-off-by: PoAn Yang <payang@apache.org>
jason810496
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LGTM overall, thanks!
@Lee-W
Lee-W
merged commit def50a9
into
apache:mainJun 12, 2026

72 checks passed

@FrankYang0529
FrankYang0529
deleted the

airflow-67484

branch
June 12, 2026 11:25
@vatsrahul1001vatsrahul1001
added this to the Airflow 3.3.0 milestone
Jun 15, 2026
imrichardwu pushed a commit
to imrichardwu/airflow
that referenced
this pull request
Jun 16, 2026
@FrankYang0529@imrichardwu
feat(dag_command.py): change to use bulk clear (apache#68280)
be5a181
dingo4dev pushed a commit
to dingo4dev/airflow
that referenced
this pull request
Jun 16, 2026
@FrankYang0529@dingo4dev
feat(dag_command.py): change to use bulk clear (apache#68280)
e7b8e02
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Bulk-clear path for airflow dags clear to avoid N transactions


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@FrankYang0529@Lee-W@jason810496@vatsrahul1001

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
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})();
(function(){
try {
var __m = "*";
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Skip to content
feat(dag_command.py): change to use bulk clear - #68280
Merged
Lee-W merged 3 commits into
apache:mainfrom 
FrankYang0529:airflow-67484
Jun 12, 2026
Merged
feat(dag_command.py): change to use bulk clear#68280
Lee-W merged 3 commits into
apache:mainfrom 
FrankYang0529:airflow-67484
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@FrankYang0529
@FrankYang0529FrankYang0529
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Jun 9, 2026

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closes: #67484
Why
airflow dags clear (#66004) loops dag.clear(run_id=...) once per matched run, issuing a separate SELECT + flush for each. A wide --partition-date-* window or broad --partition-key therefore costs N independent transactions.
How
Replace the per-run loop with a _bulk_clear_runs helper:
  • Iterates run_ids in chunks of _RUN_CHUNK_SIZE (500), fetching all matching TIs for each chunk with a single query.
  • Passes the entire chunk's TIs to clear_task_instances in one call.
Two new tests:
  • test_clears_multiple_runs_in_one_batch: asserts that 3 runs fitting in one chunk result in exactly one clear_task_instances call.
  • test_chunks_on_run_boundaries_clears_each_run_once: patches _RUN_CHUNK_SIZE to 2. 3 runs span 2 chunks.
Was generative AI tooling used to co-author this PR?
  •  Yes (please specify the tool below)
Claude Code with Claude Opus 4.8
  • Read the Pull Request Guidelines for more information. Note: commit author/co-author name and email in commits become permanently public when merged.
  • For fundamental code changes, an Airflow Improvement Proposal (AIP) is needed.
  • When adding dependency, check compliance with the ASF 3rd Party License Policy.
  • For significant user-facing changes create newsfragment: {pr_number}.significant.rst, in airflow-core/newsfragments. You can add this file in a follow-up commit after the PR is created so you know the PR number.
@FrankYang0529
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marked this pull request as draft
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Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
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marked this pull request as ready for review
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mostly good. a few nit
Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
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Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
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Comment threadairflow-core/tests/unit/cli/commands/test_dag_command.py
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Comment threadairflow-core/tests/unit/cli/commands/test_dag_command.py
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@Lee-W
Lee-W
requested a review
from jason810496June 11, 2026 09:28
@Lee-WLee-W
moved this to In Review
in AIP-76 Asset PartitioningJun 11, 2026
@FrankYang0529@Lee-W
feat(dag_command.py): change to use bulk clear
4b9c9c0
Signed-off-by: PoAn Yang <payang@apache.org>
@FrankYang0529@Lee-W
feat(dag_command.py): add dag_id to _bulk_clear_runs
1db3642
Signed-off-by: PoAn Yang <payang@apache.org>
@FrankYang0529@Lee-W
feat(clear): use util chunks function and combine duplicated test cases
d4747a2
Signed-off-by: PoAn Yang <payang@apache.org>
jason810496
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approved these changes
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LGTM overall, thanks!
@Lee-W
Lee-W
merged commit def50a9
into
apache:mainJun 12, 2026

72 checks passed

@FrankYang0529
FrankYang0529
deleted the

airflow-67484

branch
June 12, 2026 11:25
@vatsrahul1001vatsrahul1001
added this to the Airflow 3.3.0 milestone
Jun 15, 2026
imrichardwu pushed a commit
to imrichardwu/airflow
that referenced
this pull request
Jun 16, 2026
@FrankYang0529@imrichardwu
feat(dag_command.py): change to use bulk clear (apache#68280)
be5a181
dingo4dev pushed a commit
to dingo4dev/airflow
that referenced
this pull request
Jun 16, 2026
@FrankYang0529@dingo4dev
feat(dag_command.py): change to use bulk clear (apache#68280)
e7b8e02
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Bulk-clear path for airflow dags clear to avoid N transactions


4 participants

@FrankYang0529@Lee-W@jason810496@vatsrahul1001

, 'i');
if (__m === '*' || __re.test(location.href)) {
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} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
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var __m = "*";
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Skip to content
feat(dag_command.py): change to use bulk clear - #68280
Merged
Lee-W merged 3 commits into
apache:mainfrom 
FrankYang0529:airflow-67484
Jun 12, 2026
Merged
feat(dag_command.py): change to use bulk clear#68280
Lee-W merged 3 commits into
apache:mainfrom 
FrankYang0529:airflow-67484
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@FrankYang0529FrankYang0529
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closes: #67484
Why
airflow dags clear (#66004) loops dag.clear(run_id=...) once per matched run, issuing a separate SELECT + flush for each. A wide --partition-date-* window or broad --partition-key therefore costs N independent transactions.
How
Replace the per-run loop with a _bulk_clear_runs helper:
  • Iterates run_ids in chunks of _RUN_CHUNK_SIZE (500), fetching all matching TIs for each chunk with a single query.
  • Passes the entire chunk's TIs to clear_task_instances in one call.
Two new tests:
  • test_clears_multiple_runs_in_one_batch: asserts that 3 runs fitting in one chunk result in exactly one clear_task_instances call.
  • test_chunks_on_run_boundaries_clears_each_run_once: patches _RUN_CHUNK_SIZE to 2. 3 runs span 2 chunks.
Was generative AI tooling used to co-author this PR?
  •  Yes (please specify the tool below)
Claude Code with Claude Opus 4.8
  • Read the Pull Request Guidelines for more information. Note: commit author/co-author name and email in commits become permanently public when merged.
  • For fundamental code changes, an Airflow Improvement Proposal (AIP) is needed.
  • When adding dependency, check compliance with the ASF 3rd Party License Policy.
  • For significant user-facing changes create newsfragment: {pr_number}.significant.rst, in airflow-core/newsfragments. You can add this file in a follow-up commit after the PR is created so you know the PR number.
@FrankYang0529
FrankYang0529
marked this pull request as draft
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reviewed
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Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
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marked this pull request as ready for review
June 10, 2026 12:32
@Lee-W
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mostly good. a few nit
Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
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Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
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@Lee-W
Lee-W
requested a review
from jason810496June 11, 2026 09:28
@Lee-WLee-W
moved this to In Review
in AIP-76 Asset PartitioningJun 11, 2026
@FrankYang0529@Lee-W
feat(dag_command.py): change to use bulk clear
4b9c9c0
Signed-off-by: PoAn Yang <payang@apache.org>
@FrankYang0529@Lee-W
feat(dag_command.py): add dag_id to _bulk_clear_runs
1db3642
Signed-off-by: PoAn Yang <payang@apache.org>
@FrankYang0529@Lee-W
feat(clear): use util chunks function and combine duplicated test cases
d4747a2
Signed-off-by: PoAn Yang <payang@apache.org>
jason810496
jason810496
approved these changes
Jun 12, 2026
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LGTM overall, thanks!
@Lee-W
Lee-W
merged commit def50a9
into
apache:mainJun 12, 2026

72 checks passed

@FrankYang0529
FrankYang0529
deleted the

airflow-67484

branch
June 12, 2026 11:25
@vatsrahul1001vatsrahul1001
added this to the Airflow 3.3.0 milestone
Jun 15, 2026
imrichardwu pushed a commit
to imrichardwu/airflow
that referenced
this pull request
Jun 16, 2026
@FrankYang0529@imrichardwu
feat(dag_command.py): change to use bulk clear (apache#68280)
be5a181
dingo4dev pushed a commit
to dingo4dev/airflow
that referenced
this pull request
Jun 16, 2026
@FrankYang0529@dingo4dev
feat(dag_command.py): change to use bulk clear (apache#68280)
e7b8e02
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Bulk-clear path for airflow dags clear to avoid N transactions


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@FrankYang0529@Lee-W@jason810496@vatsrahul1001

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
feat(dag_command.py): change to use bulk clear - #68280
Merged
Lee-W merged 3 commits into
apache:mainfrom 
FrankYang0529:airflow-67484
Jun 12, 2026
Merged
feat(dag_command.py): change to use bulk clear#68280
Lee-W merged 3 commits into
apache:mainfrom 
FrankYang0529:airflow-67484
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@FrankYang0529
@FrankYang0529FrankYang0529
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Jun 9, 2026

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closes: #67484
Why
airflow dags clear (#66004) loops dag.clear(run_id=...) once per matched run, issuing a separate SELECT + flush for each. A wide --partition-date-* window or broad --partition-key therefore costs N independent transactions.
How
Replace the per-run loop with a _bulk_clear_runs helper:
  • Iterates run_ids in chunks of _RUN_CHUNK_SIZE (500), fetching all matching TIs for each chunk with a single query.
  • Passes the entire chunk's TIs to clear_task_instances in one call.
Two new tests:
  • test_clears_multiple_runs_in_one_batch: asserts that 3 runs fitting in one chunk result in exactly one clear_task_instances call.
  • test_chunks_on_run_boundaries_clears_each_run_once: patches _RUN_CHUNK_SIZE to 2. 3 runs span 2 chunks.
Was generative AI tooling used to co-author this PR?
  •  Yes (please specify the tool below)
Claude Code with Claude Opus 4.8
  • Read the Pull Request Guidelines for more information. Note: commit author/co-author name and email in commits become permanently public when merged.
  • For fundamental code changes, an Airflow Improvement Proposal (AIP) is needed.
  • When adding dependency, check compliance with the ASF 3rd Party License Policy.
  • For significant user-facing changes create newsfragment: {pr_number}.significant.rst, in airflow-core/newsfragments. You can add this file in a follow-up commit after the PR is created so you know the PR number.
@FrankYang0529
FrankYang0529
marked this pull request as draft
June 9, 2026 11:44
Lee-W
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reviewed
Jun 9, 2026
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Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
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Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
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@FrankYang0529
FrankYang0529
marked this pull request as ready for review
June 10, 2026 12:32
@Lee-W
Lee-W
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mostly good. a few nit
Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
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Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
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Comment threadairflow-core/tests/unit/cli/commands/test_dag_command.py
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Comment threadairflow-core/tests/unit/cli/commands/test_dag_command.py
Outdated

@Lee-W
Lee-W
requested a review
from jason810496June 11, 2026 09:28
@Lee-WLee-W
moved this to In Review
in AIP-76 Asset PartitioningJun 11, 2026
@FrankYang0529@Lee-W
feat(dag_command.py): change to use bulk clear
4b9c9c0
Signed-off-by: PoAn Yang <payang@apache.org>
@FrankYang0529@Lee-W
feat(dag_command.py): add dag_id to _bulk_clear_runs
1db3642
Signed-off-by: PoAn Yang <payang@apache.org>
@FrankYang0529@Lee-W
feat(clear): use util chunks function and combine duplicated test cases
d4747a2
Signed-off-by: PoAn Yang <payang@apache.org>
jason810496
jason810496
approved these changes
Jun 12, 2026
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LGTM overall, thanks!
@Lee-W
Lee-W
merged commit def50a9
into
apache:mainJun 12, 2026

72 checks passed

@FrankYang0529
FrankYang0529
deleted the

airflow-67484

branch
June 12, 2026 11:25
@vatsrahul1001vatsrahul1001
added this to the Airflow 3.3.0 milestone
Jun 15, 2026
imrichardwu pushed a commit
to imrichardwu/airflow
that referenced
this pull request
Jun 16, 2026
@FrankYang0529@imrichardwu
feat(dag_command.py): change to use bulk clear (apache#68280)
be5a181
dingo4dev pushed a commit
to dingo4dev/airflow
that referenced
this pull request
Jun 16, 2026
@FrankYang0529@dingo4dev
feat(dag_command.py): change to use bulk clear (apache#68280)
e7b8e02
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@Lee-WLee-WLee-W approved these changes
@jason810496jason810496jason810496 approved these changes
@bugraoz93bugraoz93Awaiting requested review from bugraoz93bugraoz93 is a code owner
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AIP-76 Asset Partitioning

Status: Done


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Airflow 3.3.0

Development

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Bulk-clear path for airflow dags clear to avoid N transactions


4 participants

@FrankYang0529@Lee-W@jason810496@vatsrahul1001

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
feat(dag_command.py): change to use bulk clear - #68280
Merged
Lee-W merged 3 commits into
apache:mainfrom 
FrankYang0529:airflow-67484
Jun 12, 2026
Merged
feat(dag_command.py): change to use bulk clear#68280
Lee-W merged 3 commits into
apache:mainfrom 
FrankYang0529:airflow-67484
Conversation
@FrankYang0529
@FrankYang0529FrankYang0529
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Jun 9, 2026

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closes: #67484
Why
airflow dags clear (#66004) loops dag.clear(run_id=...) once per matched run, issuing a separate SELECT + flush for each. A wide --partition-date-* window or broad --partition-key therefore costs N independent transactions.
How
Replace the per-run loop with a _bulk_clear_runs helper:
  • Iterates run_ids in chunks of _RUN_CHUNK_SIZE (500), fetching all matching TIs for each chunk with a single query.
  • Passes the entire chunk's TIs to clear_task_instances in one call.
Two new tests:
  • test_clears_multiple_runs_in_one_batch: asserts that 3 runs fitting in one chunk result in exactly one clear_task_instances call.
  • test_chunks_on_run_boundaries_clears_each_run_once: patches _RUN_CHUNK_SIZE to 2. 3 runs span 2 chunks.
Was generative AI tooling used to co-author this PR?
  •  Yes (please specify the tool below)
Claude Code with Claude Opus 4.8
  • Read the Pull Request Guidelines for more information. Note: commit author/co-author name and email in commits become permanently public when merged.
  • For fundamental code changes, an Airflow Improvement Proposal (AIP) is needed.
  • When adding dependency, check compliance with the ASF 3rd Party License Policy.
  • For significant user-facing changes create newsfragment: {pr_number}.significant.rst, in airflow-core/newsfragments. You can add this file in a follow-up commit after the PR is created so you know the PR number.
@FrankYang0529
FrankYang0529
marked this pull request as draft
June 9, 2026 11:44
Lee-W
Lee-W
reviewed
Jun 9, 2026
View reviewed changes
Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
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Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
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@FrankYang0529
FrankYang0529
marked this pull request as ready for review
June 10, 2026 12:32
@Lee-W
Lee-W
self-requested a review
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mostly good. a few nit
Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
Outdated

Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
Outdated

Comment threadairflow-core/tests/unit/cli/commands/test_dag_command.py
Outdated

Comment threadairflow-core/tests/unit/cli/commands/test_dag_command.py
Outdated

@Lee-W
Lee-W
requested a review
from jason810496June 11, 2026 09:28
@Lee-WLee-W
moved this to In Review
in AIP-76 Asset PartitioningJun 11, 2026
@FrankYang0529@Lee-W
feat(dag_command.py): change to use bulk clear
4b9c9c0
Signed-off-by: PoAn Yang <payang@apache.org>
@FrankYang0529@Lee-W
feat(dag_command.py): add dag_id to _bulk_clear_runs
1db3642
Signed-off-by: PoAn Yang <payang@apache.org>
@FrankYang0529@Lee-W
feat(clear): use util chunks function and combine duplicated test cases
d4747a2
Signed-off-by: PoAn Yang <payang@apache.org>
jason810496
jason810496
approved these changes
Jun 12, 2026
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LGTM overall, thanks!
@Lee-W
Lee-W
merged commit def50a9
into
apache:mainJun 12, 2026

72 checks passed

@FrankYang0529
FrankYang0529
deleted the

airflow-67484

branch
June 12, 2026 11:25
@vatsrahul1001vatsrahul1001
added this to the Airflow 3.3.0 milestone
Jun 15, 2026
imrichardwu pushed a commit
to imrichardwu/airflow
that referenced
this pull request
Jun 16, 2026
@FrankYang0529@imrichardwu
feat(dag_command.py): change to use bulk clear (apache#68280)
be5a181
dingo4dev pushed a commit
to dingo4dev/airflow
that referenced
this pull request
Jun 16, 2026
@FrankYang0529@dingo4dev
feat(dag_command.py): change to use bulk clear (apache#68280)
e7b8e02
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@Lee-WLee-WLee-W approved these changes
@jason810496jason810496jason810496 approved these changes
@bugraoz93bugraoz93Awaiting requested review from bugraoz93bugraoz93 is a code owner
@potiukpotiukAwaiting requested review from potiukpotiuk is a code owner
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AIP-76 Asset Partitioning

Status: Done


Milestone

Airflow 3.3.0

Development

Successfully merging this pull request may close these issues.

Bulk-clear path for airflow dags clear to avoid N transactions


4 participants

@FrankYang0529@Lee-W@jason810496@vatsrahul1001

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
feat(dag_command.py): change to use bulk clear - #68280
Merged
Lee-W merged 3 commits into
apache:mainfrom 
FrankYang0529:airflow-67484
Jun 12, 2026
Merged
feat(dag_command.py): change to use bulk clear#68280
Lee-W merged 3 commits into
apache:mainfrom 
FrankYang0529:airflow-67484
Conversation
@FrankYang0529
@FrankYang0529FrankYang0529
commented
Jun 9, 2026

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closes: #67484
Why
airflow dags clear (#66004) loops dag.clear(run_id=...) once per matched run, issuing a separate SELECT + flush for each. A wide --partition-date-* window or broad --partition-key therefore costs N independent transactions.
How
Replace the per-run loop with a _bulk_clear_runs helper:
  • Iterates run_ids in chunks of _RUN_CHUNK_SIZE (500), fetching all matching TIs for each chunk with a single query.
  • Passes the entire chunk's TIs to clear_task_instances in one call.
Two new tests:
  • test_clears_multiple_runs_in_one_batch: asserts that 3 runs fitting in one chunk result in exactly one clear_task_instances call.
  • test_chunks_on_run_boundaries_clears_each_run_once: patches _RUN_CHUNK_SIZE to 2. 3 runs span 2 chunks.
Was generative AI tooling used to co-author this PR?
  •  Yes (please specify the tool below)
Claude Code with Claude Opus 4.8
  • Read the Pull Request Guidelines for more information. Note: commit author/co-author name and email in commits become permanently public when merged.
  • For fundamental code changes, an Airflow Improvement Proposal (AIP) is needed.
  • When adding dependency, check compliance with the ASF 3rd Party License Policy.
  • For significant user-facing changes create newsfragment: {pr_number}.significant.rst, in airflow-core/newsfragments. You can add this file in a follow-up commit after the PR is created so you know the PR number.
@FrankYang0529
FrankYang0529
marked this pull request as draft
June 9, 2026 11:44
Lee-W
Lee-W
reviewed
Jun 9, 2026
View reviewed changes
Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
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Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
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@FrankYang0529
FrankYang0529
marked this pull request as ready for review
June 10, 2026 12:32
@Lee-W
Lee-W
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mostly good. a few nit
Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
Outdated

Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
Outdated

Comment threadairflow-core/tests/unit/cli/commands/test_dag_command.py
Outdated

Comment threadairflow-core/tests/unit/cli/commands/test_dag_command.py
Outdated

@Lee-W
Lee-W
requested a review
from jason810496June 11, 2026 09:28
@Lee-WLee-W
moved this to In Review
in AIP-76 Asset PartitioningJun 11, 2026
@FrankYang0529@Lee-W
feat(dag_command.py): change to use bulk clear
4b9c9c0
Signed-off-by: PoAn Yang <payang@apache.org>
@FrankYang0529@Lee-W
feat(dag_command.py): add dag_id to _bulk_clear_runs
1db3642
Signed-off-by: PoAn Yang <payang@apache.org>
@FrankYang0529@Lee-W
feat(clear): use util chunks function and combine duplicated test cases
d4747a2
Signed-off-by: PoAn Yang <payang@apache.org>
jason810496
jason810496
approved these changes
Jun 12, 2026
View reviewed changes
@jason810496jason810496
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LGTM overall, thanks!
@Lee-W
Lee-W
merged commit def50a9
into
apache:mainJun 12, 2026

72 checks passed

@FrankYang0529
FrankYang0529
deleted the

airflow-67484

branch
June 12, 2026 11:25
@vatsrahul1001vatsrahul1001
added this to the Airflow 3.3.0 milestone
Jun 15, 2026
imrichardwu pushed a commit
to imrichardwu/airflow
that referenced
this pull request
Jun 16, 2026
@FrankYang0529@imrichardwu
feat(dag_command.py): change to use bulk clear (apache#68280)
be5a181
dingo4dev pushed a commit
to dingo4dev/airflow
that referenced
this pull request
Jun 16, 2026
@FrankYang0529@dingo4dev
feat(dag_command.py): change to use bulk clear (apache#68280)
e7b8e02
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@Lee-WLee-WLee-W approved these changes
@jason810496jason810496jason810496 approved these changes
@bugraoz93bugraoz93Awaiting requested review from bugraoz93bugraoz93 is a code owner
@potiukpotiukAwaiting requested review from potiukpotiuk is a code owner
@dheerajturagadheerajturagaAwaiting requested review from dheerajturagadheerajturaga is a code owner

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AIP-76 Asset Partitioning

Status: Done


Milestone

Airflow 3.3.0

Development

Successfully merging this pull request may close these issues.

Bulk-clear path for airflow dags clear to avoid N transactions


4 participants

@FrankYang0529@Lee-W@jason810496@vatsrahul1001

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

Skip to content
feat(dag_command.py): change to use bulk clear - #68280
Merged
Lee-W merged 3 commits into
apache:mainfrom 
FrankYang0529:airflow-67484
Jun 12, 2026
Merged
feat(dag_command.py): change to use bulk clear#68280
Lee-W merged 3 commits into
apache:mainfrom 
FrankYang0529:airflow-67484
Conversation
@FrankYang0529
@FrankYang0529FrankYang0529
commented
Jun 9, 2026

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closes: #67484
Why
airflow dags clear (#66004) loops dag.clear(run_id=...) once per matched run, issuing a separate SELECT + flush for each. A wide --partition-date-* window or broad --partition-key therefore costs N independent transactions.
How
Replace the per-run loop with a _bulk_clear_runs helper:
  • Iterates run_ids in chunks of _RUN_CHUNK_SIZE (500), fetching all matching TIs for each chunk with a single query.
  • Passes the entire chunk's TIs to clear_task_instances in one call.
Two new tests:
  • test_clears_multiple_runs_in_one_batch: asserts that 3 runs fitting in one chunk result in exactly one clear_task_instances call.
  • test_chunks_on_run_boundaries_clears_each_run_once: patches _RUN_CHUNK_SIZE to 2. 3 runs span 2 chunks.
Was generative AI tooling used to co-author this PR?
  •  Yes (please specify the tool below)
Claude Code with Claude Opus 4.8
  • Read the Pull Request Guidelines for more information. Note: commit author/co-author name and email in commits become permanently public when merged.
  • For fundamental code changes, an Airflow Improvement Proposal (AIP) is needed.
  • When adding dependency, check compliance with the ASF 3rd Party License Policy.
  • For significant user-facing changes create newsfragment: {pr_number}.significant.rst, in airflow-core/newsfragments. You can add this file in a follow-up commit after the PR is created so you know the PR number.
@FrankYang0529
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marked this pull request as draft
June 9, 2026 11:44
Lee-W
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Jun 9, 2026
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Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
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Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
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@FrankYang0529
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marked this pull request as ready for review
June 10, 2026 12:32
@Lee-W
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self-requested a review
June 10, 2026 14:28
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mostly good. a few nit
Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
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Comment threadairflow-core/src/airflow/cli/commands/dag_command.py
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Comment threadairflow-core/tests/unit/cli/commands/test_dag_command.py
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@Lee-W
Lee-W
requested a review
from jason810496June 11, 2026 09:28
@Lee-WLee-W
moved this to In Review
in AIP-76 Asset PartitioningJun 11, 2026
@FrankYang0529@Lee-W
feat(dag_command.py): change to use bulk clear
4b9c9c0
Signed-off-by: PoAn Yang <payang@apache.org>
@FrankYang0529@Lee-W
feat(dag_command.py): add dag_id to _bulk_clear_runs
1db3642
Signed-off-by: PoAn Yang <payang@apache.org>
@FrankYang0529@Lee-W
feat(clear): use util chunks function and combine duplicated test cases
d4747a2
Signed-off-by: PoAn Yang <payang@apache.org>
jason810496
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LGTM overall, thanks!
@Lee-W
Lee-W
merged commit def50a9
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apache:mainJun 12, 2026

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@FrankYang0529
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deleted the

airflow-67484

branch
June 12, 2026 11:25
@vatsrahul1001vatsrahul1001
added this to the Airflow 3.3.0 milestone
Jun 15, 2026
imrichardwu pushed a commit
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Jun 16, 2026
@FrankYang0529@imrichardwu
feat(dag_command.py): change to use bulk clear (apache#68280)
be5a181
dingo4dev pushed a commit
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Jun 16, 2026
@FrankYang0529@dingo4dev
feat(dag_command.py): change to use bulk clear (apache#68280)
e7b8e02
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@Lee-WLee-WLee-W approved these changes
@jason810496jason810496jason810496 approved these changes
@bugraoz93bugraoz93Awaiting requested review from bugraoz93bugraoz93 is a code owner
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AIP-76 Asset Partitioning

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Airflow 3.3.0

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Bulk-clear path for airflow dags clear to avoid N transactions


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