Kbase P133696: Is it possible to use a replication target as a temporary backup when upgrading an application?
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
16/10/2008 |
|
Status: Unverified
GOAL:
Is it possible to use a replication target as a temporary backup when upgrading an application?
GOAL:
Is it possible to temporarily disable replication during a database upgrade to use the replication target as a backup in case the upgrade fails?
FACT(s) (Environment):
OpenEdge 10.x
All Supported Operating Systems
FIX:
Yes, it is possible to use the replication target as a failover during an application or database upgrade.
The steps are as follows:
1. stop the target database (proshut) or make it unreachable on the network
2. make the changes on the original database
3. once the changes are validated, restart the target database or make it reachable again. If needed restart the replication server on the source database (see note below). The changes will be synchronized to the target database.
The following points need to be taken into account:
- there must be enough AI space on the source database to perform the changes and the validation tests. This can be achieved by adding a variable size AI extent and enabling large file support.
- the replication must not be disabled: the target database must only be made unreachable.