Version 4.0.4¶

Released: June 5, 2021

Status: Stable

Changes¶

Events¶

Merged the following change from version 3.5.10: Remove the database transaction handling in the event decorator. This caused a race condition which made some background tasks like, workflows launches, to attempt to access a document that was not yet available because it was in the middle of an unfinished event transaction.

Removals¶

None

Upgrade process¶

Docker Compose¶

Check the Docker upgrading chapter for the complete upgrade process.

Direct deployment¶

Upgrading from Mayan EDMS 3.5.x¶

Important

Supervisord must be upgraded to version 4.2.2. See troubleshooting section: After upgrade to version 4.1

Stop supervisord:
```
sudo systemctl stop supervisor
```

Make a backup of your supervisord file:

sudo cp /etc/supervisor/conf.d/mayan-edms.conf /etc/supervisor/conf.d/mayan-edms.conf.bck

Make a backup of your database:

Use the respective backup command for the database:
- PostgreSQL: https://www.postgresql.org/docs/current/backup-dump.html
- MySQL: https://dev.mysql.com/doc/refman/5.7/en/mysqldump.html

Upgrade to the latest pip version:

sudo --user=mayan /opt/mayan-edms/bin/pip install --upgrade pip

Remove deprecated requirements:

sudo --user=mayan curl https://gitlab.com/mayan-edms/mayan-edms/raw/master/removals.txt --output /tmp/removals.txt \
&& sudo --user=mayan /opt/mayan-edms/bin/pip uninstall --requirement /tmp/removals.txt --yes

Update the Mayan EDMS Python package:
```
sudo --user=mayan /opt/mayan-edms/bin/pip install mayan-edms==4.4.5
```
the requirements will also be updated automatically.
Update the Redis configuration to serve at least 3 databases:

Replace:
```
databases ...
```
with:
```
databases 3
```
Restart Redis for the changes to take effect:
```
sudo systemctl restart redis
```

Edit the config file at /opt/mayan-edms/media/config.yml:

Replace:

LOCK_MANAGER_BACKEND: ...
LOCK_MANAGER_BACKEND_ARGUMENTS: ...

with:

LOCK_MANAGER_BACKEND: mayan.apps.lock_manager.backends.redis_lock.RedisLock
LOCK_MANAGER_BACKEND_ARGUMENTS: {'redis_url':'redis://:mayanredispassword@<IP address of Redis server>:6379/2'}

Update the supervisord configuration file. Replace the environment variables values shown here with your respective settings. This step will refresh the supervisord configuration file with the new queues and the latest recommended layout:
```
sudo --user=mayan MAYAN_MEDIA_ROOT=/opt/mayan-edms/media/ \
/opt/mayan-edms/bin/mayan-edms.py platformtemplate supervisord | sudo sh -c "cat > /etc/supervisor/conf.d/mayan-edms.conf"
```
Edit the supervisord configuration file and update any setting specific to your installation:
```
sudo vi /etc/supervisor/conf.d/mayan-edms.conf
```

Migrate existing database schema and static media files with:

sudo --user=mayan MAYAN_MEDIA_ROOT=/opt/mayan-edms/media/ \
/opt/mayan-edms/bin/mayan-edms.py performupgrade

Start supervisord:
```
sudo systemctl start supervisor
```
Clear the browser cache to avoid loading old web assets.

The upgrade procedure is now complete.

Troubleshooting¶

If you observe the errors:

mayan.apps.file_caching.models.CachePartitionFile.DoesNotExist: CachePartitionFile matching query does not exist.

or:

FileNotFoundError: [Errno 2] No such file or directory: '/var/lib/mayan/document_file_storage/...

follow the solution outlined in the troubleshooting section: After upgrade to version 4.0

Backward incompatible changes¶

None

Issues closed¶

None