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https://issues.apache.org/jira/browse/UNOMI-1028?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18134154#comment-18134154
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Serge Huber commented on UNOMI-1028:
------------------------------------
PR: https://github.com/apache/unomi/pull/933
Confirmed from CI Karaf logs (run 40358001149): the definitions scan started at
07:00:58.490 on a Blueprint extender thread. plugins-base started at
07:00:58.527 on the Karaf feature thread, during that scan, and none of its
types were loaded. Two other CI runs dropped the graphql/cxs-impl and
lists-extension types the same way, so the race happens more often than the
nestedCondition failures alone show.
Fix: register the listener before the scan, and load each bundle at most once
until it stops.
> Built-in condition and action types are sometimes not loaded at startup (mass
> "ConditionType not found: nestedCondition")
> -------------------------------------------------------------------------------------------------------------------------
>
> Key: UNOMI-1028
> URL: https://issues.apache.org/jira/browse/UNOMI-1028
> Project: Apache Unomi
> Issue Type: Bug
> Affects Versions: unomi-4.0.0
> Reporter: Serge Huber
> Assignee: Serge Huber
> Priority: Major
> Fix For: unomi-4.0.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> h3. In short
> Occasionally Unomi starts without some of its built-in rule and segment
> building blocks, so segments, rules and visitor tracking fail until a
> restart. It also fails dozens of integration tests at random, blocking
> unrelated changes.
> h3. Details
> * CI runs fail with dozens of "ConditionType not found: nestedCondition"
> errors (PR 910: 49 of 55 failures; PR 928: 39+ in ContextServletIT,
> SegmentIT, aliases); a plain re-run passes.
> * {{AbstractMultiTypeCachingService.postConstruct}} scans existing bundles
> and only then registers its bundle listener. A plugin bundle (e.g.
> {{plugins-base}}) that starts in between is neither scanned nor notified, so
> its predefined types are never loaded. Signature: {{org.apache.unomi.services
> ... is waiting for dependencies [PersistenceService]}} and only a few
> "Predefined ConditionType registered" lines.
> h3. Fix and test
> Register the bundle listener before the scan, and ignore a bundle that is
> already loaded. Unit-test a bundle that starts during the scan; the IT suites
> must no longer show the error.
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