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How to Deploy Oracle RAC or Oracle 23ai (SE) as Statefulset in K8s Cluster for High availability.

Aniket SahuDec 28 2024 — edited Jan 11 2025

I am new to Oracle and I want to deploy Oracle database in my K8s cluster created on my laptop. I have following queries,

  1. Which Oracle database fits best Oracle RAC or Oracle 23ai (SE/EE).
  2. Is there any specific cloud native storage like Longhorn or Portworx need to be used to deploy above mentioned Oracle database, so that it will clone/replicate the database.
  3. If Oracle database like 23ai is installed on top of Longhorn and Portworx CNCF storage, then it will automatically replicate/clone the database as part Longhorn and Portworx features or, still is there any specific configuration needs to done from Oracle database end.
  4. Kindly suggest any good documentation for above queries so that I can practice in my K8s clusters.

Comments

MartinBach-Oracle Jan 8 2025

Hi Salomon,

please have a look at this blog post written by @ulrike-schwinn-oracle :

https://blogs.oracle.com/coretec/post/easy-sql-statement-tracking-in23c

I hope this answers your question, if not, please shout!

- Martin

Solomon Yakobson Jan 8 2025

@martinbach-oracle - No, it doesn't answer my question. Article you pointed to shows uses:

SQL> alter system set sql_history_enabled=true scope=both;

And in my post I said “Works fine when enabled on system level”. My question was about

SQL> ALTER SESSION SET SQL_HISTORY_ENABLED = TRUE;

where I showed SQL history was NOT captured even though it should be based on SQL_HISTORY_ENABLED:

Modifiable **ALTER SESSION**, ALTER SYSTEM

SY.

MartinBach-Oracle Jan 8 2025

As per the article I shared the situation is as follows at the moment

  • You must enable SQL history PDB-wide (only a DBA can do that) so there's a certain level of control over the feature
  • Your session has access to the SQL history
  • If you don't want to record anything, set sql_history_enabled to false.

I'm currently assessing if that's intended behaviour (in which case the documentation should be amended) or a feature not working as it should (in which case it needs fixing). The parameter is indeed session-modifyable, but not in the sense you expected.

We'll keep you posted.

- Martin

Solomon Yakobson Jan 8 2025

Do you mean it must be enabled on system level and not on session level and all session can do is disabe it for the session?

SY.

MartinBach-Oracle Jan 14 2025

Yes,

that's correct as of Oracle Database Free 23.6.

- Martin

Solomon Yakobson Jan 14 2025

Thanks Martin, I hope this will be added to 23AI docs soon.

SY.

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Added on Dec 28 2024
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