Multiple public instances are useful when:
- Publishing parts of a site to a different public instances, for example,
/sportsto one subscriber and
- Managing multiple sites in one author instances and publishing each site to a separate public instance.
- Restoring corrupted data to a new public instance.
- Adding a public instance to cope with high load.
- Adding public instances to ensure high-availability.
Copying a public instance
The fastest and simplest way is to create a new public instance is to copy an existing one.
Before you do this, back up the
webapps folder and the database. There is always the risk of corrupting the existing instance.
- Copy a public instance folder such as
magnoliaPublic. If you use an external database, such as MySQL, copy the database folder too.
- Rename the copied folder, for example
- Delete unnecessary subfolders from the copy. The copy is a clone of the source instance. Some folders are essential to the new instance but some may be deleted.
- OK to delete:
cachecontains cached entries of the original instance.
logscontains log entries of the original instance. Empty log files will be recreated during server startup.
repositoriescan be reindexed by deleting the
indexsubfolders in each
/repositories/magnolia/workspaces/*folder but the rest of the folders should remain intact.
tmpis a temporary folder which Tomcat or Jackrabbit uses for its processes during export/import.
- Don't delete:
docrootcontains the Tomcat
templatescontains static resources.
- OK to delete:
Other ways to create a public instance
Other ways to create new public instances or situations where an additional public instance is useful include:
- Backup module. Use the Restore function. This creates a new public instance for the restored data automatically.
- Backup and restore JSP scripts. The is also useful here.
- reate new public instances without shutting down existing ones.
- Programmatically by writing a
- How to replicate a public instance lists many options to repair a broken public instance using a second instance.
- Jackrabbit DataStore for blobs in special cases.