I am having problems setting up PG as a backend,
I am getting all sorts of errors and messages about 'MSSQL', 'MySQL',
'SQLite',
that I'm not even using, that is not even part of the equation here ,and I
am very confused and behind schedule getting this beast up and working
minimally.
I set three connection strings in $AIRFLOW_HOME/airflow.cfg to point to
Postgres.
```
sql_alchemy_conn =
postgresql+psycopg2://airflow:<password>@<ip-address>/airflow
broker_url = postgresql+psycopg2://airflow:<password>@<ip-address>/airflow
result_backend =
postgresql+psycopg2://airflow:<password>@<ip-address>/airflow
```
---
I am now running `$airflow initdb`
After running, I see 23 tables (running as pg user: 'airflow': `SELECT
tablename FROM pg_tables WHERE schemaname = 'public';`
-----------------------
alembic_version
dag_pickle
import_error
job
slot_pool
chart
known_event_type
known_event
xcom
log
dag_run
sla_miss
connection
variable
task_fail
kube_resource_version
kube_worker_uuid
task_instance
task_reschedule
users
serialized_dag
dag
dag_tag
(23 rows)
---
But the output indicates errors that I do not want to see (see below).
What went wrong?
How do I backout, run this again? fix this?
---
The only thing I have not done is run this command, I don't know what it
does and what it is for, and I don't even know WTF? 'foobar' is in this
context or why it's in the documentation, someone please explain why I need
to include 'foobar' in this statement, what it refers to, and what it does
- PLEASE.
ALTER ROLE username SET search_path = airflow, foobar;
\
I don't think not running that is the problem.
---
Also this is very concerning: I am getting messages about MSSQL, but I
don't know where that comes from, is this trash that was not taken out?
```
change datetime to datetime2(6) on MSSQL tables
```
What is it doing here with MSSQL? I don't have MSSQL installed.
---
Also this is very concerning, I am getting messages about MySQL (3), search
for 'MySQL' in this message.
```
1. INFO [alembic.runtime.migration] Running upgrade f2ca10b85618 ->
4addfa1236f1, Add fractional seconds to mysql tables
2. INFO [alembic.runtime.migration] Running upgrade 947454bf1dff ->
d2ae31099d61, Increase text size for MySQL (not relevant for other DBs'
text types)
3. INFO [alembic.runtime.migration] Running upgrade 05f30312d566 ->
f23433877c24, fix mysql not null constraint
```
Why is this? I am not using MySQL? I don't even have it installed.
---
In addition I am getting messages about SQLite (1), but I don't know where
that comes from either, I'm not using SQLite.
```
INFO [alembic.runtime.migration] Running upgrade f23433877c24 ->
856955da8476, fix sqlite foreign key
```
---
I want: 'airflow initdb' to run without any error messages, and not get any
message about:
```
1. MSSQL
2. MySQL
3. SQLite
```
Is this possible?
At a minimum, what went wrong here, and how do I fix this?
---
```
[airflow]$airflow initdb
[2020-02-13 07:04:55,706] {settings.py:253} INFO -
settings.configure_orm(): Using pool settings. pool_size=5,
max_overflow=10, pool_recycle=1800, pid=32019
DB: postgresql+psycopg2://airflow:***@<ip-address>/airflow
[2020-02-13 07:04:56,603] {db.py:368} INFO - Creating tables
INFO [alembic.runtime.migration] Context impl PostgresqlImpl.
INFO [alembic.runtime.migration] Will assume transactional DDL.
INFO [alembic.runtime.migration] Running upgrade -> e3a246e0dc1, current
schema
INFO [alembic.runtime.migration] Running upgrade e3a246e0dc1 ->
1507a7289a2f, create is_encrypted
INFO [alembic.runtime.migration] Running upgrade 1507a7289a2f ->
13eb55f81627, maintain history for compatibility with earlier migrations
INFO [alembic.runtime.migration] Running upgrade 13eb55f81627 ->
338e90f54d61, More logging into task_instance
INFO [alembic.runtime.migration] Running upgrade 338e90f54d61 ->
52d714495f0, job_id indices
INFO [alembic.runtime.migration] Running upgrade 52d714495f0 ->
502898887f84, Adding extra to Log
INFO [alembic.runtime.migration] Running upgrade 502898887f84 ->
1b38cef5b76e, add dagrun
INFO [alembic.runtime.migration] Running upgrade 1b38cef5b76e ->
2e541a1dcfed, task_duration
INFO [alembic.runtime.migration] Running upgrade 2e541a1dcfed ->
40e67319e3a9, dagrun_config
INFO [alembic.runtime.migration] Running upgrade 40e67319e3a9 ->
561833c1c74b, add password column to user
INFO [alembic.runtime.migration] Running upgrade 561833c1c74b ->
4446e08588, dagrun start end
INFO [alembic.runtime.migration] Running upgrade 4446e08588 ->
bbc73705a13e, Add notification_sent column to sla_miss
INFO [alembic.runtime.migration] Running upgrade bbc73705a13e ->
bba5a7cfc896, Add a column to track the encryption state of the 'Extra'
field in connection
INFO [alembic.runtime.migration] Running upgrade bba5a7cfc896 ->
1968acfc09e3, add is_encrypted column to variable table
INFO [alembic.runtime.migration] Running upgrade 1968acfc09e3 ->
2e82aab8ef20, rename user table
INFO [alembic.runtime.migration] Running upgrade 2e82aab8ef20 ->
211e584da130, add TI state index
INFO [alembic.runtime.migration] Running upgrade 211e584da130 ->
64de9cddf6c9, add task fails journal table
INFO [alembic.runtime.migration] Running upgrade 64de9cddf6c9 ->
f2ca10b85618, add dag_stats table
INFO [alembic.runtime.migration] Running upgrade f2ca10b85618 ->
4addfa1236f1, Add fractional seconds to mysql tables
INFO [alembic.runtime.migration] Running upgrade 4addfa1236f1 ->
8504051e801b, xcom dag task indices
INFO [alembic.runtime.migration] Running upgrade 8504051e801b ->
5e7d17757c7a, add pid field to TaskInstance
INFO [alembic.runtime.migration] Running upgrade 5e7d17757c7a ->
127d2bf2dfa7, Add dag_id/state index on dag_run table
INFO [alembic.runtime.migration] Running upgrade 127d2bf2dfa7 ->
cc1e65623dc7, add max tries column to task instance
ERROR [airflow.models.dagbag.DagBag] Failed to import:
/usr/local/lib/python3.6/site-packages/airflow/example_dags/example_subdag_operator.py
Traceback (most recent call last):
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/engine/base.py",
line 1246, in _execute_context
cursor, statement, parameters, context
File
"/usr/local/lib/python3.6/site-packages/sqlalchemy/engine/default.py", line
588, in do_execute
cursor.execute(statement, parameters)
psycopg2.errors.UndefinedTable: relation "slot_pool" does not exist
LINE 2: FROM slot_pool
^
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/usr/local/lib/python3.6/site-packages/airflow/models/dagbag.py",
line 243, in process_file
m = imp.load_source(mod_name, filepath)
File "/usr/lib64/python3.6/imp.py", line 172, in load_source
module = _load(spec)
File "<frozen importlib._bootstrap>", line 684, in _load
File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 678, in exec_module
File "<frozen importlib._bootstrap>", line 219, in
_call_with_frames_removed
File
"/usr/local/lib/python3.6/site-packages/airflow/example_dags/example_subdag_operator.py",
line 50, in <module>
dag=dag,
File "/usr/local/lib/python3.6/site-packages/airflow/utils/db.py", line
74, in wrapper
return func(*args, **kwargs)
File
"/usr/local/lib/python3.6/site-packages/airflow/utils/decorators.py", line
98, in wrapper
result = func(*args, **kwargs)
File
"/usr/local/lib/python3.6/site-packages/airflow/operators/subdag_operator.py",
line 77, in __init__
.filter(Pool.pool == self.pool)
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/query.py",
line 3287, in first
ret = list(self[0:1])
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/query.py",
line 3065, in __getitem__
return list(res)
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/query.py",
line 3389, in __iter__
return self._execute_and_instances(context)
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/query.py",
line 3414, in _execute_and_instances
result = conn.execute(querycontext.statement, self._params)
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/engine/base.py",
line 982, in execute
return meth(self, multiparams, params)
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/sql/elements.py",
line 293, in _execute_on_connection
return connection._execute_clauseelement(self, multiparams, params)
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/engine/base.py",
line 1101, in _execute_clauseelement
distilled_params,
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/engine/base.py",
line 1250, in _execute_context
e, statement, parameters, cursor, context
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/engine/base.py",
line 1476, in _handle_dbapi_exception
util.raise_from_cause(sqlalchemy_exception, exc_info)
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/util/compat.py",
line 398, in raise_from_cause
reraise(type(exception), exception, tb=exc_tb, cause=cause)
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/util/compat.py",
line 152, in reraise
raise value.with_traceback(tb)
File "/usr/local/lib/python3.6/site-packages/sqlalchemy/engine/base.py",
line 1246, in _execute_context
cursor, statement, parameters, context
File
"/usr/local/lib/python3.6/site-packages/sqlalchemy/engine/default.py", line
588, in do_execute
cursor.execute(statement, parameters)
sqlalchemy.exc.ProgrammingError: (psycopg2.errors.UndefinedTable) relation
"slot_pool" does not exist
LINE 2: FROM slot_pool
^
[SQL: SELECT slot_pool.id AS slot_pool_id, slot_pool.pool AS
slot_pool_pool, slot_pool.slots AS slot_pool_slots, slot_pool.description
AS slot_pool_description
FROM slot_pool
WHERE slot_pool.slots = %(slots_1)s AND slot_pool.pool = %(pool_1)s
LIMIT %(param_1)s]
[parameters: {'slots_1': 1, 'pool_1': 'default_pool', 'param_1': 1}]
(Background on this error at: http://sqlalche.me/e/f405)
INFO [alembic.runtime.migration] Running upgrade cc1e65623dc7 ->
bdaa763e6c56, Make xcom value column a large binary
INFO [alembic.runtime.migration] Running upgrade bdaa763e6c56 ->
947454bf1dff, add ti job_id index
INFO [alembic.runtime.migration] Running upgrade 947454bf1dff ->
d2ae31099d61, Increase text size for MySQL (not relevant for other DBs'
text types)
INFO [alembic.runtime.migration] Running upgrade d2ae31099d61 ->
0e2a74e0fc9f, Add time zone awareness
INFO [alembic.runtime.migration] Running upgrade d2ae31099d61 ->
33ae817a1ff4, kubernetes_resource_checkpointing
INFO [alembic.runtime.migration] Running upgrade 33ae817a1ff4 ->
27c6a30d7c24, kubernetes_resource_checkpointing
INFO [alembic.runtime.migration] Running upgrade 27c6a30d7c24 ->
86770d1215c0, add kubernetes scheduler uniqueness
INFO [alembic.runtime.migration] Running upgrade 86770d1215c0,
0e2a74e0fc9f -> 05f30312d566, merge heads
INFO [alembic.runtime.migration] Running upgrade 05f30312d566 ->
f23433877c24, fix mysql not null constraint
INFO [alembic.runtime.migration] Running upgrade f23433877c24 ->
856955da8476, fix sqlite foreign key
INFO [alembic.runtime.migration] Running upgrade 856955da8476 ->
9635ae0956e7, index-faskfail
INFO [alembic.runtime.migration] Running upgrade 9635ae0956e7 ->
dd25f486b8ea, add idx_log_dag
INFO [alembic.runtime.migration] Running upgrade dd25f486b8ea ->
bf00311e1990, add index to taskinstance
INFO [alembic.runtime.migration] Running upgrade 9635ae0956e7 ->
0a2a5b66e19d, add task_reschedule table
INFO [alembic.runtime.migration] Running upgrade 0a2a5b66e19d,
bf00311e1990 -> 03bc53e68815, merge_heads_2
INFO [alembic.runtime.migration] Running upgrade 03bc53e68815 ->
41f5f12752f8, add superuser field
INFO [alembic.runtime.migration] Running upgrade 41f5f12752f8 ->
c8ffec048a3b, add fields to dag
INFO [alembic.runtime.migration] Running upgrade c8ffec048a3b ->
dd4ecb8fbee3, Add schedule interval to dag
INFO [alembic.runtime.migration] Running upgrade dd4ecb8fbee3 ->
939bb1e647c8, task reschedule fk on cascade delete
INFO [alembic.runtime.migration] Running upgrade 939bb1e647c8 ->
6e96a59344a4, Make TaskInstance.pool not nullable
INFO [alembic.runtime.migration] Running upgrade 6e96a59344a4 ->
d38e04c12aa2, add serialized_dag table
Revision ID: d38e04c12aa2
Revises: 6e96a59344a4
Create Date: 2019-08-01 14:39:35.616417
INFO [alembic.runtime.migration] Running upgrade d38e04c12aa2 ->
b3b105409875, add root_dag_id to DAG
Revision ID: b3b105409875
Revises: d38e04c12aa2
Create Date: 2019-09-28 23:20:01.744775
INFO [alembic.runtime.migration] Running upgrade 6e96a59344a4 ->
74effc47d867, change datetime to datetime2(6) on MSSQL tables
INFO [alembic.runtime.migration] Running upgrade 939bb1e647c8 ->
004c1210f153, increase queue name size limit
INFO [alembic.runtime.migration] Running upgrade c8ffec048a3b ->
a56c9515abdc, Remove dag_stat table
INFO [alembic.runtime.migration] Running upgrade a56c9515abdc,
004c1210f153, 74effc47d867, b3b105409875 -> 08364691d074, Merge the four
heads back together
INFO [alembic.runtime.migration] Running upgrade 08364691d074 ->
fe461863935f, increase_length_for_connection_password
INFO [alembic.runtime.migration] Running upgrade fe461863935f ->
7939bcff74ba, Add DagTags table
Done.
```
