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From "Allison Wang (JIRA)" <>
Subject [jira] [Commented] (AIRFLOW-1452) "airflow initdb" stuck forever on upgrade
Date Wed, 02 Aug 2017 20:53:00 GMT


Allison Wang commented on AIRFLOW-1452:

Then there must be locks in the database when you run {{airflow initdb}}. I am not familiar
with MSSQL but the SQL in posted error message post is 
{{UPDATE alembic_version SET version_num='cc1e65623dc7' WHERE alembic_version.version_num
= '127d2bf2dfa7'}}
This is the error of updating alembic_version, not any particular operation related to adding
max_tries column. 

Please make sure there is no lock before and during the migration. This migration script is
tested against MySQL, Postgres and SQLite. We recommend using MySQL and Postgres as we can
provide more support for issues with these databases. 

> "airflow initdb" stuck forever on upgrade
> -----------------------------------------
>                 Key: AIRFLOW-1452
>                 URL:
>             Project: Apache Airflow
>          Issue Type: Bug
>          Components: db
>            Reporter: Pavel Martynov
>         Attachments: docker-compose.yml, Dockerfile,
> I install airflow from the current master branch (426b6a65f6ec142449893e36fcd677941bdad879
when I write this issue) and run "airflow initdb" against MS SQL and it stuck forever with
that output:
> {noformat}
> [2017-07-25 07:30:12,458] {} INFO - Creating tables
> INFO  [alembic.runtime.migration] Context impl MSSQLImpl.
> 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
> 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_isntance
> INFO  [alembic.runtime.migration] Running upgrade 338e90f54d61 -> 52d714495f0, job_id
> INFO  [alembic.runtime.migration] Running upgrade 52d714495f0 -> 502898887f84, Adding
extra to Log
> INFO  [alembic.runtime.migration] Running upgrade 502898887f84 -> 1b38cef5b76e, add
> 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
> {noformat}
> I reproduce this problem with docker-compose, see files in attachment.
> Also, I try this on 1.8.2rc2 and it works fine, looks like problem in
> Some locks occurred, I "killed lock" in MS SQL and got exception:
> {noformat}
> sqlalchemy.exc.DBAPIError: (pyodbc.Error) ('08S01', '[08S01] [Microsoft][ODBC Driver
13 for SQL Server]TCP Provider: Error code 0x2746 (10054) (SQLExecDirectW)') [SQL: u"UPDATE
alembic_version SET version_num='cc1e65623dc7' WHERE alembic_version.version_num = '127d2bf2dfa7'"]
> {noformat}
> migration was added for [AIRFLOW-1366].

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