mirror of
https://github.com/friendica/friendica
synced 2024-11-14 11:02:55 +00:00
92 lines
4.1 KiB
Markdown
92 lines
4.1 KiB
Markdown
Migrating to a new server installation
|
|
===============
|
|
|
|
* [Home](help)
|
|
|
|
## Preparation
|
|
|
|
### New server
|
|
Set up your new server as described [here](Install); follow the installation procedure until you have created a database.
|
|
|
|
### Heads up to users
|
|
Inform your users of an upcoming interruption to your service.
|
|
To ensure data consistency, your server needs to be offline during some steps of the migration processes.
|
|
|
|
You may also find these addons useful for communicating with your users prior to the migration process:
|
|
* blackout
|
|
* notifyall
|
|
|
|
### Storage
|
|
Check your storage backend with ``bin/console storage list`` in the root folder.
|
|
The output should look like this:
|
|
````
|
|
Sel | Name
|
|
-----------------------
|
|
| Filesystem
|
|
* | Database
|
|
````
|
|
|
|
If you are *not* using ``Database`` run the following commands:
|
|
1. ``bin/console storage set Database`` to activate the database backend.
|
|
2. ``bin/console storage move`` to initiate moving the stored image files.
|
|
|
|
This process may take a long time depending on the size of your storage and your server's capacity.
|
|
Prior to initiating this process, you may want to check the number of files in the storage with the following command: ``tree -if -I index.html /path/to/storage/``.
|
|
|
|
### Cleaning up
|
|
Before transferring your database, you may want to clean it up; ensure the expiration of database items is set to a reasonable value and activated via the administrator panel.
|
|
*Admin* > *Site* > *Performance* > Enable "Clean up database"
|
|
After adjusting these settings, the database cleaning up processes will be initiated according to your configured daily cron job.
|
|
|
|
To review the size of your database, log into MySQL with ``mysql -p`` run the following query:
|
|
````
|
|
SELECT table_schema AS "Database", SUM(data_length + index_length) / 1024 / 1024 / 1024 AS "Size (GB)" FROM information_schema.TABLES GROUP BY table_schema;
|
|
````
|
|
|
|
You should see an output like this:
|
|
````
|
|
+--------------------+----------------+
|
|
| Database | Size (GB) |
|
|
+--------------------+----------------+
|
|
| friendica_db | 8.054092407227 |
|
|
| [..........] | [...........] |
|
|
+--------------------+----------------+
|
|
````
|
|
|
|
Finally, you may also want to optimise your database with the following command: ``mysqloptimize -p friendica-db``
|
|
|
|
### Going offline
|
|
Stop background tasks and put your server in maintenance mode.
|
|
1. If you had set up a worker cron job like this ``*/10 * * * * cd /var/www/friendica; /usr/bin/php bin/worker.php`` run ``crontab -e`` and comment out this line. Alternatively if you deploy a worker daemon, disable this instead.
|
|
2. Put your server into maintenance mode: ``bin/console maintenance 1 "We are currently upgrading our system and will be back soon."``
|
|
|
|
## Dumping DB
|
|
Export your database: ``mysqldump -p friendica_db > friendica_db-$(date +%Y%m%d).sql`` and possibly compress it.
|
|
|
|
## Transferring to new server
|
|
Transfer your database and a copy of your configuration file ``config/local.config.php.copy`` to your new server installation.
|
|
|
|
## Restoring your DB
|
|
Import your database on your new server: ``mysql -p friendica_db < your-friendica_db-file.sql``
|
|
|
|
## Completing migration
|
|
|
|
### Configuration file
|
|
Copy your old server's configuration file to ``config/local.config.php``.
|
|
Ensure the newly created database credentials are identical to the setting in the configuration file; otherwise update them accordingly.
|
|
|
|
### Cron job for worker
|
|
Set up the required daily cron job.
|
|
Run ``crontab -e`` and add the following line according to your system specification
|
|
``*/10 * * * * cd /var/www/friendica; /usr/bin/php bin/worker.php``
|
|
|
|
### DNS settings
|
|
Adjust your DNS records by pointing them to your new server.
|
|
|
|
## Troubleshooting
|
|
If you are unable to login to your newly migrated Friendica installation, check your web server's error and access logs and mysql logs for obvious issues.
|
|
|
|
If still unable to resolve the problem, it's likely an issue with your [installation](Install).
|
|
In this case, you may try to an entirely new Friendica installation on your new server, but use a different FQDN and DNS name.
|
|
Once you have this up and running, take it offline and purge the database and configuration file and try migrating to this installation.
|
|
|