gnodet commented on PR #21891:
URL: https://github.com/apache/camel/pull/21891#issuecomment-4032372345

   **Local test results for Couchbase 8.0.0:**
   
   Mixed results — producer tests pass, consumer tests fail:
   
   | Test | Result |
   |---|---|
   | ProduceMessagesSimpleIT | :white_check_mark: PASSED |
   | ProduceMessagesWithAutoIDIT | :white_check_mark: PASSED |
   | RemoveMessagesIT | :white_check_mark: PASSED |
   | ConsumeMessagesWithLimitIT | :x: FAILED |
   | ConsumeResumeStrategyIT | :x: FAILED |
   
   The consumer test failures are caused by:
   ```
   ViewServiceException: views are supported only on couchbase buckets with 
couchstore storage backend
   ```
   
   Couchbase 8.0.0 changed the default storage backend from **CouchStore** to 
**Magma**. Map/Reduce views are not supported on Magma. The test base class 
`CouchbaseIntegrationTestBase` creates a bucket with the default storage 
backend and then upserts a design document (view), which fails.
   
   To fix, either:
   1. Specify `StorageBackend.COUCHSTORE` when creating the test bucket in 
`CouchbaseIntegrationTestBase.setUpCouchbase()`
   2. Or migrate the consumer to use SQL++/N1QL queries instead of views (views 
are deprecated in Couchbase 7.x+)
   
   This PR is **not safe to merge** without addressing the storage backend 
change.


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