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Documentum story – D2EventSenderMailMethod when multiple Documentum repositories are used.

When several repositories are accessed through the same Java Method Server (JMS), it might be needed to have a different dfc.properties parameters for the D2EventSenderMailMethod depending on the repository. This can be issued using an external Java call to(…)

Running a Cassandra cluster in a single server

This blog post is about the configuration of Apache Cassandra for running a cluster of 3 instances on a single host. Basically C* is not really build to run in a multi instances environment, but for many cases and reasons(…)

How to patch Postgres Plus Advanced Server

As with any other software there comes the time when you need to patch your Postgres Plus Advanced Server instances. Is that different from patching Community PostgreSQL? Yes and no :) The difference is(…)

Apache Cassandra overview

Apache Cassandra is one of the most popular NoSQL databases http://db-engines.com/en/ranking. It is used by many big companies as Facebook, Netflix and many others. Initially the project was initiated by Facebook. In combination with Google BigTable and Amazon DynamoDB,(…)

Oracle 12c and RMAN switch datafile to copy, is it really so easy?

By William Sescu Oracle incrementally updating backups are used quite often because they are easy to setup and restoring a datafile is very fast. It is very fast because you are not really restoring a datafile, you are switching to(…)

Oracle 12cR2: DDL deferred invalidation

By Franck Pachot . In a previous post I described the new V$SQL views about rolling invalidation. I did the example with dbms_stats which is able to do rolling invalidation since 11g. But more is coming(…)

Running PostgreSQL on ZFS on Linux – Compression

In the last posts in this little series we looked at how to get a ZFS file system up and running on a CentOS 7 host and how snapshots and clones can be used(…)

Oracle 12c and RMAN automatic datafile creation

By William Sescu A lot of new features popped up with RMAN 12c, like  Expansion of Multi-section support, or Simplified cross-platform migration and many many more. However, in this post I would like to highlight a small, but very helpful(…)

Documentum story – HA configuration best practice

We went to a performance issue and some failed failover regarding the content server and the JMS. Thus we asked EMC for recommendations and it seems that the configuration can be slightly different than the official documentation. Here are the(…)

Running PostgreSQL on ZFS on Linux – Fun with snapshots and clones

In the last post we looked at how to get a ZFS file system up and running on a CentOS 7 host and how to enable the auto mount of the ZFS file systems. In this post(…)