Nidhoggur1993 edited a comment on issue #15481:
URL: https://github.com/apache/airflow/issues/15481#issuecomment-824576391
```
root@Ubuntu-10-10-118-25:~/airflow# airflow db init
DB: mysql+mysqlconnector://simon:***@ip:port/airflow_db
[2021-04-22 06:06:19,631] {db.py:684} INFO - Creating tables
INFO [alembic.runtime.migration] Context impl MySQLImpl.
INFO [alembic.runtime.migration] Will assume non-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
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
INFO [alembic.runtime.migration] Running upgrade d38e04c12aa2 ->
b3b105409875, add root_dag_id to DAG
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
INFO [alembic.runtime.migration] Running upgrade 7939bcff74ba ->
a4c2fd67d16b, add pool_slots field to task_instance
INFO [alembic.runtime.migration] Running upgrade a4c2fd67d16b ->
852ae6c715af, Add RenderedTaskInstanceFields table
INFO [alembic.runtime.migration] Running upgrade 852ae6c715af ->
952da73b5eff, add dag_code table
INFO [alembic.runtime.migration] Running upgrade 952da73b5eff ->
a66efa278eea, Add Precision to execution_date in RenderedTaskInstanceFields
table
INFO [alembic.runtime.migration] Running upgrade a66efa278eea ->
da3f683c3a5a, Add dag_hash Column to serialized_dag table
INFO [alembic.runtime.migration] Running upgrade da3f683c3a5a ->
92c57b58940d, Create FAB Tables
INFO [alembic.runtime.migration] Running upgrade 92c57b58940d ->
03afc6b6f902, Increase length of FAB ab_view_menu.name column
INFO [alembic.runtime.migration] Running upgrade 03afc6b6f902 ->
cf5dc11e79ad, drop_user_and_chart
INFO [alembic.runtime.migration] Running upgrade cf5dc11e79ad ->
bbf4a7ad0465, Remove id column from xcom
Traceback (most recent call last):
File "/usr/local/lib/python3.8/dist-packages/sqlalchemy/engine/base.py",
line 1276, in _execute_context
self.dialect.do_execute(
File
"/usr/local/lib/python3.8/dist-packages/sqlalchemy/engine/default.py", line
608, in do_execute
cursor.execute(statement, parameters)
File "/usr/local/lib/python3.8/dist-packages/mysql/connector/cursor.py",
line 551, in execute
self._handle_result(self._connection.cmd_query(stmt))
File
"/usr/local/lib/python3.8/dist-packages/mysql/connector/connection.py", line
490, in cmd_query
result = self._handle_result(self._send_cmd(ServerCmd.QUERY, query))
File
"/usr/local/lib/python3.8/dist-packages/mysql/connector/connection.py", line
395, in _handle_result
raise errors.get_exception(packet)
mysql.connector.errors.ProgrammingError: 1071 (42000): Specified key was too
long; max key length is 3072 bytes
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/usr/local/bin/airflow", line 8, in <module>
sys.exit(main())
File "/usr/local/lib/python3.8/dist-packages/airflow/__main__.py", line
40, in main
args.func(args)
File "/usr/local/lib/python3.8/dist-packages/airflow/cli/cli_parser.py",
line 48, in command
return func(*args, **kwargs)
File
"/usr/local/lib/python3.8/dist-packages/airflow/cli/commands/db_command.py",
line 31, in initdb
db.initdb()
File "/usr/local/lib/python3.8/dist-packages/airflow/utils/db.py", line
559, in initdb
upgradedb()
File "/usr/local/lib/python3.8/dist-packages/airflow/utils/db.py", line
694, in upgradedb
command.upgrade(config, 'heads')
File "/usr/local/lib/python3.8/dist-packages/alembic/command.py", line
294, in upgrade
script.run_env()
File "/usr/local/lib/python3.8/dist-packages/alembic/script/base.py", line
490, in run_env
util.load_python_file(self.dir, "env.py")
File "/usr/local/lib/python3.8/dist-packages/alembic/util/pyfiles.py",
line 97, in load_python_file
module = load_module_py(module_id, path)
File "/usr/local/lib/python3.8/dist-packages/alembic/util/compat.py", line
182, in load_module_py
spec.loader.exec_module(module)
File "<frozen importlib._bootstrap_external>", line 783, in exec_module
File "<frozen importlib._bootstrap>", line 219, in
_call_with_frames_removed
File "/usr/local/lib/python3.8/dist-packages/airflow/migrations/env.py",
line 108, in <module>
run_migrations_online()
File "/usr/local/lib/python3.8/dist-packages/airflow/migrations/env.py",
line 102, in run_migrations_online
context.run_migrations()
File "<string>", line 8, in run_migrations
File
"/usr/local/lib/python3.8/dist-packages/alembic/runtime/environment.py", line
813, in run_migrations
self.get_context().run_migrations(**kw)
File
"/usr/local/lib/python3.8/dist-packages/alembic/runtime/migration.py", line
560, in run_migrations
step.migration_fn(**kw)
File
"/usr/local/lib/python3.8/dist-packages/airflow/migrations/versions/bbf4a7ad0465_remove_id_column_from_xcom.py",
line 48, in upgrade
bop.create_primary_key('pk_xcom', ['dag_id', 'task_id', 'key',
'execution_date'])
File "/usr/lib/python3.8/contextlib.py", line 120, in __exit__
next(self.gen)
File "/usr/local/lib/python3.8/dist-packages/alembic/operations/base.py",
line 336, in batch_alter_table
impl.flush()
File "/usr/local/lib/python3.8/dist-packages/alembic/operations/batch.py",
line 86, in flush
fn(*arg, **kw)
File "/usr/local/lib/python3.8/dist-packages/alembic/ddl/impl.py", line
263, in add_constraint
self._exec(schema.AddConstraint(const))
File "/usr/local/lib/python3.8/dist-packages/alembic/ddl/impl.py", line
146, in _exec
return conn.execute(construct, multiparams)
File "/usr/local/lib/python3.8/dist-packages/sqlalchemy/engine/base.py",
line 1011, in execute
return meth(self, multiparams, params)
File "/usr/local/lib/python3.8/dist-packages/sqlalchemy/sql/ddl.py", line
72, in _execute_on_connection
return connection._execute_ddl(self, multiparams, params)
File "/usr/local/lib/python3.8/dist-packages/sqlalchemy/engine/base.py",
line 1068, in _execute_ddl
ret = self._execute_context(
File "/usr/local/lib/python3.8/dist-packages/sqlalchemy/engine/base.py",
line 1316, in _execute_context
self._handle_dbapi_exception(
File "/usr/local/lib/python3.8/dist-packages/sqlalchemy/engine/base.py",
line 1510, in _handle_dbapi_exception
util.raise_(
File "/usr/local/lib/python3.8/dist-packages/sqlalchemy/util/compat.py",
line 182, in raise_
raise exception
File "/usr/local/lib/python3.8/dist-packages/sqlalchemy/engine/base.py",
line 1276, in _execute_context
self.dialect.do_execute(
File
"/usr/local/lib/python3.8/dist-packages/sqlalchemy/engine/default.py", line
608, in do_execute
cursor.execute(statement, parameters)
File "/usr/local/lib/python3.8/dist-packages/mysql/connector/cursor.py",
line 551, in execute
self._handle_result(self._connection.cmd_query(stmt))
File
"/usr/local/lib/python3.8/dist-packages/mysql/connector/connection.py", line
490, in cmd_query
result = self._handle_result(self._send_cmd(ServerCmd.QUERY, query))
File
"/usr/local/lib/python3.8/dist-packages/mysql/connector/connection.py", line
395, in _handle_result
raise errors.get_exception(packet)
sqlalchemy.exc.ProgrammingError: (mysql.connector.errors.ProgrammingError)
1071 (42000): Specified key was too long; max key length is 3072 bytes
[SQL: ALTER TABLE xcom ADD CONSTRAINT pk_xcom PRIMARY KEY (dag_id, task_id,
`key`, execution_date)]
(Background on this error at: http://sqlalche.me/e/13/f405)
```
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