Add tests for fields emulation CCS error cases #78621
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cbuescher
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Pinging @elastic/es-search (Team:Search) |
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@cbuescher is this still valid or does it need to be closed? |
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I think this is still relevant but not urgent to add. The tests added here should mainly assert the current behaviour, while I opened #78620 as a potential follow up if we decide to prevent this kind of errors by a retry. If you think adding these tests generally makes sense I will update the branch |
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We added an emulation layer to the "fields" option in #77749 that is able to translate search requests using the "fields" option for pre-7.10 nodes, e.g. in a mixed cluster or CCS use case.
This PR adds tests to those two use cases that assert the current failure behaviour when some of the target indices in earlier version have "_source" disabled. In this case we currently fail the respective shard requests and deliver the error (an IAE) in the response alongside the succesful hits.
Relates to #78620