Hi. Got the following questions from a user but I'm not sure how to respond.
We are internally auditing if JAVA (the Oracle one) is required to be installed in the servers hosting DataMiner… and, if yes, could it be the free version of Java like Open Java?
Marieke Goethals [SLC] [DevOps Catalyst] Selected answer as best 5th June 2024
Hi Luis,
Miguel is correct in stating you don't need Java by default on the server/VM hosting DataMiner. However, if you choose to have self-hosted storage, i.e. typically Cassandra Cluster + OpenSearch Cluster, than you do need Java on the Linux machines hosting the databases. The required/compatible Java version is listed on their website:
- Installing OpenSearch - OpenSearch Documentation
- Installing Cassandra | Apache Cassandra Documentation
A typical installation today runs Cassandra 4.1 and OpenSearch 2.X, which are both fine running Java 11.
Kind Regards,
Jarno
Marieke Goethals [SLC] [DevOps Catalyst] Selected answer as best 5th June 2024
Hi Jarno. Thank you for the information. I believe this is what the user was referring to when he brought the discussion of java. It’s the java instance that gets installed when installing DataMiner with local Cassandra. I guess the next question would be if it’s even possible to use something like Open Java in those cases but I guess that would be out of our control since the change would need to come from Apache and OpenSearch directly. Though I do see in the Cassandra site you linked it lists OpenJDK as one of the prerequisites. If that is the case, perhaps that’s something we can implement in a future version of the installer. Maybe?