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Posted to commits@airflow.apache.org by ur...@apache.org on 2023/09/12 06:28:57 UTC

[airflow] branch main updated: Attribute 'clear_number' to track DAG run being cleared (#34126)

This is an automated email from the ASF dual-hosted git repository.

uranusjr pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/airflow.git


The following commit(s) were added to refs/heads/main by this push:
     new eed2901e87 Attribute 'clear_number' to track DAG run being cleared (#34126)
eed2901e87 is described below

commit eed2901e877b32a211e0e74bc9d69fc11e552f2a
Author: Sung Yun <10...@users.noreply.github.com>
AuthorDate: Tue Sep 12 02:28:49 2023 -0400

    Attribute 'clear_number' to track DAG run being cleared (#34126)
    
    Co-authored-by: Tzu-ping Chung <ur...@gmail.com>
---
 airflow/jobs/scheduler_job_runner.py               |    4 +-
 .../0129_2_8_0_add_clear_number_to_dag_run.py      |   55 +
 airflow/models/dagrun.py                           |    7 +-
 airflow/models/taskinstance.py                     |    1 +
 airflow/utils/db.py                                |    1 +
 docs/apache-airflow/img/airflow_erd.sha256         |    2 +-
 docs/apache-airflow/img/airflow_erd.svg            | 1719 ++++++++++----------
 docs/apache-airflow/migrations-ref.rst             |    4 +-
 tests/models/test_dagrun.py                        |    2 +
 9 files changed, 933 insertions(+), 862 deletions(-)

diff --git a/airflow/jobs/scheduler_job_runner.py b/airflow/jobs/scheduler_job_runner.py
index 6c4652ef1a..36fd1bdfb9 100644
--- a/airflow/jobs/scheduler_job_runner.py
+++ b/airflow/jobs/scheduler_job_runner.py
@@ -1348,12 +1348,14 @@ class SchedulerJobRunner(BaseJobRunner[Job], LoggingMixin):
         def _update_state(dag: DAG, dag_run: DagRun):
             dag_run.state = DagRunState.RUNNING
             dag_run.start_date = timezone.utcnow()
-            if dag.timetable.periodic:
+            if dag.timetable.periodic and not dag_run.external_trigger and dag_run.clear_number < 1:
                 # TODO: Logically, this should be DagRunInfo.run_after, but the
                 # information is not stored on a DagRun, only before the actual
                 # execution on DagModel.next_dagrun_create_after. We should add
                 # a field on DagRun for this instead of relying on the run
                 # always happening immediately after the data interval.
+                # We only publish these metrics for scheduled dag runs and only
+                # when ``external_trigger`` is *False* and ``clear_number`` is 0.
                 expected_start_date = dag.get_run_data_interval(dag_run).end
                 schedule_delay = dag_run.start_date - expected_start_date
                 # Publish metrics twice with backward compatible name, and then with tags
diff --git a/airflow/migrations/versions/0129_2_8_0_add_clear_number_to_dag_run.py b/airflow/migrations/versions/0129_2_8_0_add_clear_number_to_dag_run.py
new file mode 100644
index 0000000000..c26d781434
--- /dev/null
+++ b/airflow/migrations/versions/0129_2_8_0_add_clear_number_to_dag_run.py
@@ -0,0 +1,55 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+"""add new field 'clear_number' to dagrun
+
+Revision ID: 375a816bbbf4
+Revises: 405de8318b3a
+Create Date: 2023-09-05 19:27:30.531558
+
+"""
+
+import sqlalchemy as sa
+from alembic import op
+
+
+# revision identifiers, used by Alembic.
+revision = "375a816bbbf4"
+down_revision = "405de8318b3a"
+branch_labels = None
+depends_on = None
+airflow_version = "2.8.0"
+
+
+def upgrade():
+    """Apply add cleared column to dagrun"""
+    with op.batch_alter_table("dag_run") as batch_op:
+        batch_op.add_column(
+            sa.Column(
+                "clear_number",
+                sa.Integer,
+                default=0,
+                nullable=False,
+            )
+        )
+
+
+def downgrade():
+    """Unapply add cleared column to pool"""
+    with op.batch_alter_table("dag_run") as batch_op:
+        batch_op.drop_column("clear_number")
diff --git a/airflow/models/dagrun.py b/airflow/models/dagrun.py
index 7308758333..72dd938653 100644
--- a/airflow/models/dagrun.py
+++ b/airflow/models/dagrun.py
@@ -140,6 +140,7 @@ class DagRun(Base, LoggingMixin):
         default=select(func.max(LogTemplate.__table__.c.id)),
     )
     updated_at = Column(UtcDateTime, default=timezone.utcnow, onupdate=timezone.utcnow)
+    clear_number = Column(Integer, default=0, nullable=False)
 
     # Remove this `if` after upgrading Sphinx-AutoAPI
     if not TYPE_CHECKING and "BUILDING_AIRFLOW_DOCS" in os.environ:
@@ -232,6 +233,7 @@ class DagRun(Base, LoggingMixin):
         self.run_type = run_type
         self.dag_hash = dag_hash
         self.creating_job_id = creating_job_id
+        self.clear_number = 0
         super().__init__()
 
     def __repr__(self):
@@ -917,12 +919,15 @@ class DagRun(Base, LoggingMixin):
         rid of the outliers on the stats side through dashboards tooling.
 
         Note that the stat will only be emitted for scheduler-triggered DAG runs
-        (i.e. when ``external_trigger`` is *False*).
+        (i.e. when ``external_trigger`` is *False* and ``clear_number`` is
+        greater than 0).
         """
         if self.state == TaskInstanceState.RUNNING:
             return
         if self.external_trigger:
             return
+        if self.clear_number > 0:
+            return
         if not finished_tis:
             return
 
diff --git a/airflow/models/taskinstance.py b/airflow/models/taskinstance.py
index 4919514c13..21793f042d 100644
--- a/airflow/models/taskinstance.py
+++ b/airflow/models/taskinstance.py
@@ -349,6 +349,7 @@ def clear_task_instances(
                 if dag_run_state == DagRunState.QUEUED:
                     dr.last_scheduling_decision = None
                     dr.start_date = None
+                    dr.clear_number += 1
     session.flush()
 
 
diff --git a/airflow/utils/db.py b/airflow/utils/db.py
index 16b9d6595c..f5c5313aa3 100644
--- a/airflow/utils/db.py
+++ b/airflow/utils/db.py
@@ -88,6 +88,7 @@ _REVISION_HEADS_MAP = {
     "2.6.0": "98ae134e6fff",
     "2.6.2": "c804e5c76e3e",
     "2.7.0": "405de8318b3a",
+    "2.8.0": "375a816bbbf4",
 }
 
 
diff --git a/docs/apache-airflow/img/airflow_erd.sha256 b/docs/apache-airflow/img/airflow_erd.sha256
index 2a70c2746a..5d5f1e453e 100644
--- a/docs/apache-airflow/img/airflow_erd.sha256
+++ b/docs/apache-airflow/img/airflow_erd.sha256
@@ -1 +1 @@
-52cd8c81c9f586992515a903d882e72e8df0a55da5021d2614ba1807b8b63f7e
\ No newline at end of file
+67b3dfeba9f0f4721ec4eaf3045ede333fdf16b40e6eaaa58f680f1dc95fcc6f
\ No newline at end of file
diff --git a/docs/apache-airflow/img/airflow_erd.svg b/docs/apache-airflow/img/airflow_erd.svg
index ba548c60fd..d57ebdf1de 100644
--- a/docs/apache-airflow/img/airflow_erd.svg
+++ b/docs/apache-airflow/img/airflow_erd.svg
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 <title>ab_view_menu&#45;&#45;ab_permission_view</title>
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 <g id="node5" class="node">
 <title>ab_role</title>
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 <title>ab_user_role</title>
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 <g id="node7" class="node">
 <title>ab_register_user</title>
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-<text text-anchor="start" x="518" y="-1650.8" font-family="Helvetica,sans-Serif" font-size="14.00"> [VARCHAR(512)]</text>
-<text text-anchor="start" x="639" y="-1650.8" font-family="Helvetica,sans-Serif" font-size="14.00"> NOT NULL</text>
-<polygon fill="none" stroke="black" points="475,-1616 475,-1641 756,-1641 756,-1616 475,-1616"/>
-<text text-anchor="start" x="480" y="-1625.8" font-family="Helvetica,sans-Serif" font-size="14.00">fail_login_count</text>
-<text text-anchor="start" x="588" y="-1625.8" font-family="Helvetica,sans-Serif" font-size="14.00"> [INTEGER]</text>
-<polygon fill="none" stroke="black" points="475,-1591 475,-1616 756,-1616 756,-1591 475,-1591"/>
-<text text-anchor="start" x="480" y="-1600.8" font-family="Helvetica,sans-Serif" font-size="14.00">first_name</text>
-<text text-anchor="start" x="554" y="-1600.8" font-family="Helvetica,sans-Serif" font-size="14.00"> [VARCHAR(256)]</text>
-<text text-anchor="start" x="675" y="-1600.8" font-family="Helvetica,sans-Serif" font-size="14.00"> NOT NULL</text>
-<polygon fill="none" stroke="black" points="475,-1566 475,-1591 756,-1591 756,-1566 475,-1566"/>
-<text text-anchor="start" x="480" y="-1575.8" font-family="Helvetica,sans-Serif" font-size="14.00">last_login</text>
-<text text-anchor="start" x="546" y="-1575.8" font-family="Helvetica,sans-Serif" font-size="14.00"> [DATETIME]</text>
-<polygon fill="none" stroke="black" points="475,-1541 475,-1566 756,-1566 756,-1541 475,-1541"/>
-<text text-anchor="start" x="480" y="-1550.8" font-family="Helvetica,sans-Serif" font-size="14.00">last_name</text>
-<text text-anchor="start" x="551" y="-1550.8" font-family="Helvetica,sans-Serif" font-size="14.00"> [VARCHAR(256)]</text>
-<text text-anchor="start" x="672" y="-1550.8" font-family="Helvetica,sans-Serif" font-size="14.00"> NOT NULL</text>
-<polygon fill="none" stroke="black" points="475,-1516 475,-1541 756,-1541 756,-1516 475,-1516"/>
-<text text-anchor="start" x="480" y="-1525.8" font-family="Helvetica,sans-Serif" font-size="14.00">login_count</text>
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-<polygon fill="none" stroke="black" points="475,-1491 475,-1516 756,-1516 756,-1491 475,-1491"/>
-<text text-anchor="start" x="480" y="-1500.8" font-family="Helvetica,sans-Serif" font-size="14.00">password</text>
-<text text-anchor="start" x="547" y="-1500.8" font-family="Helvetica,sans-Serif" font-size="14.00"> [VARCHAR(256)]</text>
-<polygon fill="none" stroke="black" points="475,-1466 475,-1491 756,-1491 756,-1466 475,-1466"/>
-<text text-anchor="start" x="480" y="-1475.8" font-family="Helvetica,sans-Serif" font-size="14.00">username</text>
-<text text-anchor="start" x="550" y="-1475.8" font-family="Helvetica,sans-Serif" font-size="14.00"> [VARCHAR(512)]</text>
-<text text-anchor="start" x="671" y="-1475.8" font-family="Helvetica,sans-Serif" font-size="14.00"> NOT NULL</text>
+<polygon fill="none" stroke="black" points="475,-1828 475,-1856 756,-1856 756,-1828 475,-1828"/>
+<text text-anchor="start" x="580.5" y="-1839.2" font-family="Helvetica,sans-Serif" font-weight="bold" font-size="16.00">ab_user</text>
+<polygon fill="none" stroke="black" points="475,-1803 475,-1828 756,-1828 756,-1803 475,-1803"/>
+<text text-anchor="start" x="480" y="-1812.8" font-family="Helvetica,sans-Serif" text-decoration="underline" font-size="14.00">id</text>
+<text text-anchor="start" x="493" y="-1812.8" font-family="Helvetica,sans-Serif" font-size="14.00"> [INTEGER]</text>
+<text text-anchor="start" x="570" y="-1812.8" font-family="Helvetica,sans-Serif" font-size="14.00"> NOT NULL</text>
+<polygon fill="none" stroke="black" points="475,-1778 475,-1803 756,-1803 756,-1778 475,-1778"/>
+<text text-anchor="start" x="480" y="-1787.8" font-family="Helvetica,sans-Serif" font-size="14.00">active</text>
+<text text-anchor="start" x="522" y="-1787.8" font-family="Helvetica,sans-Serif" font-size="14.00"> [BOOLEAN]</text>
+<polygon fill="none" stroke="black" points="475,-1753 475,-1778 756,-1778 756,-1753 475,-1753"/>
+<text text-anchor="start" x="480" y="-1762.8" font-family="Helvetica,sans-Serif" font-size="14.00">changed_by_fk</text>
+<text text-anchor="start" x="585" y="-1762.8" font-family="Helvetica,sans-Serif" font-size="14.00"> [INTEGER]</text>
+<polygon fill="none" stroke="black" points="475,-1728 475,-1753 756,-1753 756,-1728 475,-1728"/>
+<text text-anchor="start" x="480" y="-1737.8" font-family="Helvetica,sans-Serif" font-size="14.00">changed_on</text>
+<text text-anchor="start" x="565" y="-1737.8" font-family="Helvetica,sans-Serif" font-size="14.00"> [DATETIME]</text>
+<polygon fill="none" stroke="black" points="475,-1703 475,-1728 756,-1728 756,-1703 475,-1703"/>
+<text text-anchor="start" x="480" y="-1712.8" font-family="Helvetica,sans-Serif" font-size="14.00">created_by_fk</text>
+<text text-anchor="start" x="577" y="-1712.8" font-family="Helvetica,sans-Serif" font-size="14.00"> [INTEGER]</text>
+<polygon fill="none" stroke="black" points="475,-1678 475,-1703 756,-1703 756,-1678 475,-1678"/>
+<text text-anchor="start" x="480" y="-1687.8" font-family="Helvetica,sans-Serif" font-size="14.00">created_on</text>
+<text text-anchor="start" x="556" y="-1687.8" font-family="Helvetica,sans-Serif" font-size="14.00"> [DATETIME]</text>
+<polygon fill="none" stroke="black" points="475,-1653 475,-1678 756,-1678 756,-1653 475,-1653"/>
+<text text-anchor="start" x="480" y="-1662.8" font-family="Helvetica,sans-Serif" font-size="14.00">email</text>
+<text text-anchor="start" x="518" y="-1662.8" font-family="Helvetica,sans-Serif" font-size="14.00"> [VARCHAR(512)]</text>
+<text text-anchor="start" x="639" y="-1662.8" font-family="Helvetica,sans-Serif" font-size="14.00"> NOT NULL</text>
+<polygon fill="none" stroke="black" points="475,-1628 475,-1653 756,-1653 756,-1628 475,-1628"/>
+<text text-anchor="start" x="480" y="-1637.8" font-family="Helvetica,sans-Serif" font-size="14.00">fail_login_count</text>
+<text text-anchor="start" x="588" y="-1637.8" font-family="Helvetica,sans-Serif" font-size="14.00"> [INTEGER]</text>
+<polygon fill="none" stroke="black" points="475,-1603 475,-1628 756,-1628 756,-1603 475,-1603"/>
+<text text-anchor="start" x="480" y="-1612.8" font-family="Helvetica,sans-Serif" font-size="14.00">first_name</text>
+<text text-anchor="start" x="554" y="-1612.8" font-family="Helvetica,sans-Serif" font-size="14.00"> [VARCHAR(256)]</text>
+<text text-anchor="start" x="675" y="-1612.8" font-family="Helvetica,sans-Serif" font-size="14.00"> NOT NULL</text>
+<polygon fill="none" stroke="black" points="475,-1578 475,-1603 756,-1603 756,-1578 475,-1578"/>
+<text text-anchor="start" x="480" y="-1587.8" font-family="Helvetica,sans-Serif" font-size="14.00">last_login</text>
+<text text-anchor="start" x="546" y="-1587.8" font-family="Helvetica,sans-Serif" font-size="14.00"> [DATETIME]</text>
+<polygon fill="none" stroke="black" points="475,-1553 475,-1578 756,-1578 756,-1553 475,-1553"/>
+<text text-anchor="start" x="480" y="-1562.8" font-family="Helvetica,sans-Serif" font-size="14.00">last_name</text>
+<text text-anchor="start" x="551" y="-1562.8" font-family="Helvetica,sans-Serif" font-size="14.00"> [VARCHAR(256)]</text>
+<text text-anchor="start" x="672" y="-1562.8" font-family="Helvetica,sans-Serif" font-size="14.00"> NOT NULL</text>
+<polygon fill="none" stroke="black" points="475,-1528 475,-1553 756,-1553 756,-1528 475,-1528"/>
+<text text-anchor="start" x="480" y="-1537.8" font-family="Helvetica,sans-Serif" font-size="14.00">login_count</text>
+<text text-anchor="start" x="560" y="-1537.8" font-family="Helvetica,sans-Serif" font-size="14.00"> [INTEGER]</text>
+<polygon fill="none" stroke="black" points="475,-1503 475,-1528 756,-1528 756,-1503 475,-1503"/>
+<text text-anchor="start" x="480" y="-1512.8" font-family="Helvetica,sans-Serif" font-size="14.00">password</text>
+<text text-anchor="start" x="547" y="-1512.8" font-family="Helvetica,sans-Serif" font-size="14.00"> [VARCHAR(256)]</text>
+<polygon fill="none" stroke="black" points="475,-1478 475,-1503 756,-1503 756,-1478 475,-1478"/>
+<text text-anchor="start" x="480" y="-1487.8" font-family="Helvetica,sans-Serif" font-size="14.00">username</text>
+<text text-anchor="start" x="550" y="-1487.8" font-family="Helvetica,sans-Serif" font-size="14.00"> [VARCHAR(512)]</text>
+<text text-anchor="start" x="671" y="-1487.8" font-family="Helvetica,sans-Serif" font-size="14.00"> NOT NULL</text>
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 <title>ab_user&#45;&#45;ab_user_role</title>
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-<text text-anchor="start" x="763.53" y="-1690.39" font-family="Times,serif" font-size="14.00">{0,1}</text>
+<path fill="none" stroke="#7f7f7f" stroke-dasharray="5,2" d="M763.53,-1713.59C812.73,-1729.13 866.21,-1746.01 910.35,-1759.95"/>
+<text text-anchor="start" x="879.35" y="-1748.75" font-family="Times,serif" font-size="14.00">0..N</text>
+<text text-anchor="start" x="763.53" y="-1702.39" font-family="Times,serif" font-size="14.00">{0,1}</text>
 </g>
 <!-- ab_user&#45;&#45;ab_user -->
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 <title>ab_user&#45;&#45;ab_user</title>
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-<text text-anchor="start" x="602.57" y="-1851.82" font-family="Times,serif" font-size="14.00">{0,1}</text>
+<path fill="none" stroke="#7f7f7f" stroke-dasharray="5,2" d="M602.57,-1860.02C605.55,-1871.27 609.7,-1878 615,-1878 620.3,-1878 624.45,-1871.27 627.43,-1860.02"/>
+<text text-anchor="start" x="627.43" y="-1863.82" font-family="Times,serif" font-size="14.00">0..N</text>
+<text text-anchor="start" x="602.57" y="-1863.82" font-family="Times,serif" font-size="14.00">{0,1}</text>
 </g>
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 <g id="edge7" class="edge">
 <title>ab_user&#45;&#45;ab_user</title>
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-<text text-anchor="start" x="543.29" y="-1852.18" font-family="Times,serif" font-size="14.00">{0,1}</text>
+<path fill="none" stroke="#7f7f7f" stroke-dasharray="5,2" d="M584.29,-1860.38C590.08,-1882.01 600.32,-1896 615,-1896 629.68,-1896 639.92,-1882.01 645.71,-1860.38"/>
+<text text-anchor="start" x="645.71" y="-1864.18" font-family="Times,serif" font-size="14.00">0..N</text>
+<text text-anchor="start" x="543.29" y="-1864.18" font-family="Times,serif" font-size="14.00">{0,1}</text>
 </g>
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 <g id="node9" class="node">
@@ -270,9 +270,9 @@
 <!-- ab_user&#45;&#45;dag_run_note -->
 <g id="edge9" class="edge">
 <title>ab_user&#45;&#45;dag_run_note</title>
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-<text text-anchor="start" x="763.63" y="-1492.35" font-family="Times,serif" font-size="14.00">{0,1}</text>
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+<text text-anchor="start" x="836.85" y="-1415.97" font-family="Times,serif" font-size="14.00">0..N</text>
+<text text-anchor="start" x="763.55" y="-1493.96" font-family="Times,serif" font-size="14.00">{0,1}</text>
 </g>
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@@ -313,452 +313,455 @@
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 <title>ab_user&#45;&#45;task_instance_note</title>
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+<text text-anchor="start" x="763.57" y="-1599.79" font-family="Times,serif" font-size="14.00">{0,1}</text>
 </g>
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 <title>alembic_version</title>
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+<text text-anchor="start" x="119" y="-2481.2" font-family="Helvetica,sans-Serif" font-weight="bold" font-size="16.00">alembic_version</text>
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+<text text-anchor="start" x="52.5" y="-2454.8" font-family="Helvetica,sans-Serif" text-decoration="underline" font-size="14.00">version_num</text>
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 <title>callback_request</title>
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 <title>connection</title>
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 <!-- dag -->
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 <title>dag</title>
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diff --git a/docs/apache-airflow/migrations-ref.rst b/docs/apache-airflow/migrations-ref.rst
index a3a42654f6..8b0cc7248f 100644
--- a/docs/apache-airflow/migrations-ref.rst
+++ b/docs/apache-airflow/migrations-ref.rst
@@ -39,7 +39,9 @@ Here's the list of all the Database Migrations that are executed via when you ru
 +---------------------------------+-------------------+-------------------+--------------------------------------------------------------+
 | Revision ID                     | Revises ID        | Airflow Version   | Description                                                  |
 +=================================+===================+===================+==============================================================+
-| ``405de8318b3a`` (head)         | ``788397e78828``  | ``2.7.0``         | add include_deferred column to pool                          |
+| ``375a816bbbf4`` (head)         | ``405de8318b3a``  | ``2.8.0``         | add new field 'clear_number' to dagrun                       |
++---------------------------------+-------------------+-------------------+--------------------------------------------------------------+
+| ``405de8318b3a``                | ``788397e78828``  | ``2.7.0``         | add include_deferred column to pool                          |
 +---------------------------------+-------------------+-------------------+--------------------------------------------------------------+
 | ``788397e78828``                | ``937cbd173ca1``  | ``2.7.0``         | Add custom_operator_name column                              |
 +---------------------------------+-------------------+-------------------+--------------------------------------------------------------+
diff --git a/tests/models/test_dagrun.py b/tests/models/test_dagrun.py
index 15b70bffdd..4861b51b1b 100644
--- a/tests/models/test_dagrun.py
+++ b/tests/models/test_dagrun.py
@@ -136,6 +136,7 @@ class TestDagRun:
         ti0.refresh_from_db()
         dr0 = session.query(DagRun).filter(DagRun.dag_id == dag_id, DagRun.execution_date == now).first()
         assert dr0.state == state
+        assert dr0.clear_number < 1
 
     @pytest.mark.parametrize("state", [DagRunState.SUCCESS, DagRunState.FAILED])
     def test_clear_task_instances_for_backfill_finished_dagrun(self, state, session):
@@ -154,6 +155,7 @@ class TestDagRun:
         ti0.refresh_from_db()
         dr0 = session.query(DagRun).filter(DagRun.dag_id == dag_id, DagRun.execution_date == now).first()
         assert dr0.state == DagRunState.QUEUED
+        assert dr0.clear_number == 1
 
     def test_dagrun_find(self, session):
         now = timezone.utcnow()