When applying archive logs on the standby, dbvctl process can terminate abnormally with Error Code: 2044. This can happen in case there are several archive logs with huge size to be applied. Problem description With dbvisit there is 2 ways to recover the archive log on the standby, either using sqlplus or rman. By default the configuration is set to…
I have recently been working on a customer project where I had been challenged adding a dbvisit standby database on an ODA X7-2M, named ODA03. The existing customer environment was composed of Oracle Standard 12.2 version database. The primary database, myDB, is running on server named srv02 and using a non-OMF configuration. On the ODA side we are working with…
Dbvisit standy is a disaster recovery solution that you will be able to use with Oracle standard edition. I have been working on a customer project where I had to setup a system having one primary and two standby databases. One of the standby database had to run with a gap of 24 hours. Knowing that flashback possibilities are very…
By Franck Pachot . What’s common with Standard Edition, simplicity, reliability, high performance, and affordable price? Dbvisit standby can be an answer because it brings Disaster Recovery to Standard Edition without adding complexity ODA Lite (the new X6-2S and 2M) is another answer because you can run Standard Edition in those new appliance. So it makes sense to bring them…
By Franck Pachot . You’ve setup a logical replication, and you trust it. But before the target goes into production, it will be safer to compare source and target. At least count the number of rows. But tables are continuously changing, so how can you compare? Not so difficult thanks to Dbvisit replicate heartbeat table and Oracle flashback query. Here…
By Franck Pachot . It’s next week at #DOAG2015 Interested in a deep dive of logical replication? Let’s try it. The best way to learn is to try it and this is the idea of #RepAttack where you can quickly install a replication configuration on your laptop, using VirtualBox, Oracle XE, and Dbvisit replicate trial version. Last year Jan Karremans…
By Franck Pachot . I’ve tested a little thing for a customer, and as usual I spool the result into a blog post in case it helps others. Not all replication software – at least in their current version – can manage both different target structure (which is often the main reason for logical replication) and keep up with new…
By Franck Pachot . You don’t want to reload the datawarehouse database every night. And you may want to have it refreshed more often, in real-time during the day. There is another reason to capture all changes from the operational database: you want the history of all updates and not only the current value. This is why you use Change…
By Franck Pachot . Je viens d’assister au Webinar Zero Downtime Migration pour Oracle, présenté par Chris Lawless qui est récemment passé de Product Manager Golden Gate à Product Manager Dbvisit. Je vais détailler ici un point très important évoqué par Chris Lawless. La migration par réplication n’est pas seulement envisagée pour éviter un arrêt de service. Arrêt nécéssaire lors…
