[jira] [Commented] (AIRFLOW-4867) Cannot downgrade drop_user_and_chart migration script
[
https://issues.apache.org/jira/browse/AIRFLOW-4867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16927660#comment-16927660
]
ASF GitHub Bot commented on AIRFLOW-4867:
-
stale[bot] commented on pull request #5592: [AIRFLOW-4867] check if table
exists before creating
URL: https://github.com/apache/airflow/pull/5592
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> Cannot downgrade drop_user_and_chart migration script
> -
>
> Key: AIRFLOW-4867
> URL: https://issues.apache.org/jira/browse/AIRFLOW-4867
> Project: Apache Airflow
> Issue Type: Bug
> Components: database
>Affects Versions: 1.10.3, 1.10.4
>Reporter: David Szakallas
>Priority: Major
>
> I needed to downgrade to Airflow 1.10.2 (db head rev 41f5f12752f8) from
> Airflow 1.10.4b2 (db head rev 004c1210f153).
> When running
> {code:java}
> alembic downgrade 41f5f12752f8{code}
>
> I faced the following error
> {code:java}
> INFO [alembic.runtime.migration] Context impl PostgresqlImpl.
> INFO [alembic.runtime.migration] Will assume transactional DDL.
> [2019-06-28 20:28:02,375] {migration.py:357} INFO - Running downgrade
> 004c1210f153 -> 939bb1e647c8, increase queue name size limit
> [2019-06-28 20:28:03,719] {migration.py:357} INFO - Running downgrade
> 939bb1e647c8 -> 4ebbffe0a39a, task reschedule fk on cascade delete
> [2019-06-28 20:28:04,241] {migration.py:357} INFO - Running downgrade
> 4ebbffe0a39a -> dd4ecb8fbee3, cf5dc11e79ad, a56c9515abdc, Merge heads
> [2019-06-28 20:29:22,124] {migration.py:357} INFO - Running downgrade
> dd4ecb8fbee3 -> c8ffec048a3b, Add schedule interval to dag
> [2019-06-28 20:29:22,468] {migration.py:357} INFO - Running downgrade
> cf5dc11e79ad -> 41f5f12752f8, drop_user_and_chart
> Traceback (most recent call last):
> File
> "/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/lib/python3.6/site-packages/sqlalchemy/engine/base.py",
> line 1244, in _execute_context
> cursor, statement, parameters, context
> File
> "/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/lib/python3.6/site-packages/sqlalchemy/engine/default.py",
> line 550, in do_execute
> cursor.execute(statement, parameters)
> psycopg2.errors.DuplicateTable: relation "users" already exists
> The above exception was the direct cause of the following exception:
> Traceback (most recent call last):
> File
> "/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/bin/alembic", line
> 11, in
> load_entry_point('alembic==1.0.11', 'console_scripts', 'alembic')()
> File
> "/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/lib/python3.6/site-packages/alembic/config.py",
> line 540, in main
> CommandLine(prog=prog).main(argv=argv)
> File
> "/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/lib/python3.6/site-packages/alembic/config.py",
> line 534, in main
> self.run_cmd(cfg, options)
> File
> "/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/lib/python3.6/site-packages/alembic/config.py",
> line 514, in run_cmd
> **dict((k, getattr(options, k, None)) for k in kwarg)
> File
> "/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/lib/python3.6/site-packages/alembic/command.py",
> line 317, in downgrade
> script.run_env()
> File
> "/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/lib/python3.6/site-packages/alembic/script/base.py",
> line 475, in run_env
> util.load_python_file(self.dir, "env.py")
> File
> "/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/lib/python3.6/site-packages/alembic/util/pyfiles.py",
> line 90, in load_python_file
> module = load_module_py(module_id, path)
> File
> "/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/lib/python3.6/site-packages/alembic/util/compat.py",
> line 177, in load_module_py
> spec.loader.exec_module(module)
> File "", line 678, in exec_module
> File "", line 219, in _call_with_frames_removed
> File "migrations/env.py", line 75, in
> run_migrations_online()
> File "migrations/env.py", line 69, in run_migrations_online
> context.run_migrations()
> File "", line 8, in run_migrations
> File
> "/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/lib/python3.6/site-packages/alembic/runtime/environment.py",
> line 839, in run_migrations
> self.get_context().run_migrations(**kw)
> File
> "/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/lib/python3.6/site-packages/alembic/runtime/migration.py",
> line 362, in run_migrations
>
[jira] [Commented] (AIRFLOW-4867) Cannot downgrade drop_user_and_chart migration script
[
https://issues.apache.org/jira/browse/AIRFLOW-4867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16885320#comment-16885320
]
ASF GitHub Bot commented on AIRFLOW-4867:
-
dszakallas commented on pull request #5592: [AIRFLOW-4867] migration script
should check if table exists
URL: https://github.com/apache/airflow/pull/5592
Make sure you have checked _all_ steps below.
### Jira
- [x] My PR addresses the following
[AIRFLOW-4867](https://issues.apache.org/jira/browse/AIRFLOW-4867) issues and
references them in the PR title.
### Description
- [x] Here are some details about my PR, including screenshots of any UI
changes:
needed to downgrade to Airflow 1.10.2 (db head rev 41f5f12752f8) from
Airflow 1.10.4b2 (db head rev 004c1210f153).
When running
```
alembic downgrade 41f5f12752f8
```
I faced the following error
```
INFO [alembic.runtime.migration] Context impl PostgresqlImpl.
INFO [alembic.runtime.migration] Will assume transactional DDL.
[2019-06-28 20:28:02,375] {migration.py:357} INFO - Running downgrade
004c1210f153 -> 939bb1e647c8, increase queue name size limit
[2019-06-28 20:28:03,719] {migration.py:357} INFO - Running downgrade
939bb1e647c8 -> 4ebbffe0a39a, task reschedule fk on cascade delete
[2019-06-28 20:28:04,241] {migration.py:357} INFO - Running downgrade
4ebbffe0a39a -> dd4ecb8fbee3, cf5dc11e79ad, a56c9515abdc, Merge heads
[2019-06-28 20:29:22,124] {migration.py:357} INFO - Running downgrade
dd4ecb8fbee3 -> c8ffec048a3b, Add schedule interval to dag
[2019-06-28 20:29:22,468] {migration.py:357} INFO - Running downgrade
cf5dc11e79ad -> 41f5f12752f8, drop_user_and_chart
Traceback (most recent call last):
File
"/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/lib/python3.6/site-packages/sqlalchemy/engine/base.py",
line 1244, in _execute_context
cursor, statement, parameters, context
File
"/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/lib/python3.6/site-packages/sqlalchemy/engine/default.py",
line 550, in do_execute
cursor.execute(statement, parameters)
psycopg2.errors.DuplicateTable: relation "users" already exists
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File
"/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/bin/alembic", line
11, in
load_entry_point('alembic==1.0.11', 'console_scripts', 'alembic')()
File
"/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/lib/python3.6/site-packages/alembic/config.py",
line 540, in main
CommandLine(prog=prog).main(argv=argv)
File
"/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/lib/python3.6/site-packages/alembic/config.py",
line 534, in main
self.run_cmd(cfg, options)
File
"/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/lib/python3.6/site-packages/alembic/config.py",
line 514, in run_cmd
**dict((k, getattr(options, k, None)) for k in kwarg)
File
"/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/lib/python3.6/site-packages/alembic/command.py",
line 317, in downgrade
script.run_env()
File
"/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/lib/python3.6/site-packages/alembic/script/base.py",
line 475, in run_env
util.load_python_file(self.dir, "env.py")
File
"/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/lib/python3.6/site-packages/alembic/util/pyfiles.py",
line 90, in load_python_file
module = load_module_py(module_id, path)
File
"/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/lib/python3.6/site-packages/alembic/util/compat.py",
line 177, in load_module_py
spec.loader.exec_module(module)
File "", line 678, in exec_module
File "", line 219, in
_call_with_frames_removed
File "migrations/env.py", line 75, in
run_migrations_online()
File "migrations/env.py", line 69, in run_migrations_online
context.run_migrations()
File "", line 8, in run_migrations
File
"/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/lib/python3.6/site-packages/alembic/runtime/environment.py",
line 839, in run_migrations
self.get_context().run_migrations(**kw)
File
"/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/lib/python3.6/site-packages/alembic/runtime/migration.py",
line 362, in run_migrations
step.migration_fn(**kw)
File
"/Users/dszakallas/Projects/airflow/airflow/migrations/versions/cf5dc11e79ad_drop_user_and_chart.py",
line 66, in downgrade
sa.UniqueConstraint('username')
File "", line 8, in create_table
File "", line 3, in create_table
File
"/Users/dszakallas/.pyenv/versions/3.6.6/envs/pds-airflow/lib/python3.6/site-packages/alembic/operations/ops.py",
line 1248, in create_table
