Templates break with dnf/rpm updates (on Centos 9) from 2.8 to 2.9 version.

[lejeczek]

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Please see here for the whole story - https://forum.opensearch.org/t/java-lang-illegalargumentexception-index-template-how-critical/15306/16

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[draeath]

I am affected by this as well. You seem to have worked around it on the forum post @lejeczek but can you detail what you did?

If so - if I use what view gets me, in JSON and then - deleting the temple in-between - then use that with

You've lost me, here. Which view? Which template did you remove?

[draeath]

Oh, also please link back here in the forum post so others can more easily find it. That post is literally the only result for a google search of "ss4o_metrics_template"

[dblock]

@lejeczek can you please edit this issue with copy-pasting the relevant parts from the forum post so that we can understand what the issue is without having to go read something else? we can then triage/move this appropriately.

[AMoo-Miki]

From what i gather, there used to be a template named ss4o_metric_template which was renamed to ss4o_metrics_template in 2.9.0. However, the code that creates this template doesn't look for the older name to remove/update it and blindly creates a new template. This results in anyone upgrading to 2.9.0 to have two templates with the same pattern and same priority and that causes

[ERROR][o.o.b.OpenSearchUncaughtExceptionHandler] [3c9265bbfeec] uncaught exception in thread [main]
org.opensearch.bootstrap.StartupException: java.lang.IllegalArgumentException: index template [ss4o_metrics_template] has index patterns [ss4o_metrics-*-*] matching patterns from existing templates [ss4o_metric_template] with patterns (ss4o_metric_template => [ss4o_metrics-*-*]) that have the same priority [1], multiple index templates may not match during index creation, please use a different priority

PS, this is NOT specific to Centos; anyone upgrading to 2.9.0 suffers from it.

Probably the simplest solution is to remove the older template, ss4o_metric_template.

[anasalkouz]

Might be related issue: opensearch-project/ml-commons#1201

[hashworks]

How would one remove the ss4o_metric_template if the 2.9.0 opensearch server is unable to start due to the bug?

[draeath]

Are you sure that's the thing that's preventing you from starting?

I came looking because I noticed it in the logs, but it wasn't actually preventing open search from starting up and functioning normally (that I could tell)

I don't really use it directly. I have graylog sitting on top of it.