3 Replies Latest reply on Jul 27, 2020 4:58 PM by Roelof_vS

ORDS 19 or 20 with Weblogic 10.3.6. Or alternatively Ords 3.0 with WL 12.2.1.4.

Roelof_vS Jul 24, 2020 10:20 AM

(Follow-on from answered question Multiple weblogic/ORDS installs pointing to the same Apex/DB - possible? )

Hi all,

I currently have an old live implementation and also a new target (upgrade) implementation.

Environment---

OLD:

Windows 2012
WebLogic 10.3.6,
ORDS 3.0 deployed next to OAM

NEW:

Windows 2016

Weblogic 12.2.1.4
OAM 12.2.1.4
Need to get ORDS 19.x or 20.x deployed. No ORDS installed currently.

Linux

RAC RDBMS 19.7
Apex 5,0, planned to upgrade to one of the latest versions

NB- Both OLD and NEW Weblogic implementations point to this same database, which is where the issue arises

Issue---

Both OLD and NEW applications servers need to co-oexist for some time for testing, then OLD will be switched off.

As stated in the thread referenced above, ORDS needs to be on the same version in both OLD and NEW.

ORDS 17+ is not supported on Weblogic 10.3.6, per the install guide. So cannot be installed on OLD.

ORDS 3.0 does not talk about support against Weblogic 12.2, as likely Weblogic 12+ did not exist at the time.

How do I bring client to latest ORDS on NEW, without breaking anything in ORDS OLD at the time? Options I see,

1) Install ORDS 3.0 on NEW so it will be in sync with OLD. Live with this until go-live and then once OLD is switched OFF, bump ORDS to the latest version. Is this viable?
2) Install ORDS 20 on OLD. I believe this likely will NOT work. Certainly ORDS 20 wants JDK8 while OLD has JDK6 due to Weblogic 10.3.6. And there may be other reasons as well.
3) Any other direct or stepped approach this I am missing?

Many thanks - Roelof

1. Re: ORDS 19 or 20 with Weblogic 10.3.6. Or alternatively Ords 3.0 with WL 12.2.1.4.

EJ-Egyed Jul 24, 2020 12:43 PM (in response to Roelof_vS)

As Jeff had stated as the answer to the previous question, you can't have two different versions of ORDS running in the same database. There will have to be a cutover from OLD to NEW since you can't have ORDS 3.0 and ORDS 20 running against the same database.
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2. Re: ORDS 19 or 20 with Weblogic 10.3.6. Or alternatively Ords 3.0 with WL 12.2.1.4.

Roelof_vS Jul 24, 2020 1:42 PM (in response to EJ-Egyed)

Hi thanks for the reply.

Yes, I know that I cannot have different 2 versions running in the same database.
That is exactly my question - What is my path to reach this.

The plan is to cut over to NEW as stated. But there is a time of overlap required for testing (UAT). And so for example, is my suggested option (1) perhaps viable.
They cannot just cut over with no testing at all.

Thanks
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3. Re: ORDS 19 or 20 with Weblogic 10.3.6. Or alternatively Ords 3.0 with WL 12.2.1.4.

Roelof_vS Jul 27, 2020 4:58 PM (in response to Roelof_vS)

I need to confirm:

Installing ORDS 3 on WLS12.2.1.4 and DB19.7 is not desirable, but seems the only option that I can identify. Then after cutover and the old WLS is switched off, upgrade to the latest ORDS.
Is there any argument against following this plan? If so, any alternative suggestion(s)?
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