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mongodump --db clowder --out clowder-upgrade |
2.2 Restoring MongoDB
This will describe how to backup the mongo database. If you have the files stored in the mongo database (default) this can take a long time and take up a significant amount of space since it will also restore the actual files. There are two ways to restore the mongo database, the first one will drop the database first, and thus will also remove any additional collections you added. The second way will only drop those collections that are imported, this can leave some additional collections that could create trouble in future updates.
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echo "db.dropDatabase();" | mongo --db clowder mongorestore --db clowder clowder-upgrade/clowder |
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mongorestore --drop --db clowder clowder-upgrade/clowder |
2.3 Backing up PostgreSQL
If you leverage of the geostreams capabilities in Clowder you will be using a PostgreSQL database. Again this assumes you will be using the default database (geostream) on localhost. This will dump the database in a directory. Each of the tables will be a separate file that is compressed.
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pg_dump -F d -Z 9 -d bety -f geostream |
2.4 Restoring PostgreSQL
To restore the database geostream database you can use the following command.
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pg_restore -d geostream |
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geostream |
3. Performing the upgrade
The actual update consists of a few steps. After these steps are completed you will have an updated version of clowder.
- Make sure you have backed up your database.
- Download the version you want to install, some common versions are:
- Latest stable version - This version is more tested, but is not as up to date as the development version.
- Latest development version - This version contains the latest code and has been lightly tested.
- Stop the current version of clowder you have running
- Move the folder of the current version
- Unzip the downloaded version of clowder
- Move the custom folder of the original clowder to the custom folder of the new clowder
- Start clowder. Make sure your startup script uses the flag -DMONGOUPDATE=1 and -DPOSTGRESUPDATE=1 to update the databases. If the database is not updated the application might not run correctly and/or you might not be able to login.
To make this process easier we have a script that will perform all these tasks for you (except for the backup, your are still responsible for the backup). The script does assume you have in the startup script that will have the UPDATE flags enabled.
4. Post upgrade checks and tasks
Once you have confirmed the availability of compatible versions of the extractors, you should upgrade your extractors after successfully upgrading Clowder.
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