Routing can be defined in the mapping as required, and indexing
operations will fail if one is not provided. This is added as an extra safe
mechanism to make sure a data is not indexed with specific routing. Issue: https://github.com/elasticsearch/elasticsearch/issues/closed#issue/520.
Routing info is now stored automatically when indexing, and can be
retrieved (in search/get) by specifying _routing in the fields section. This
helps when wanting to reindex the data. Here is the issue:Issues · elastic/elasticsearch · GitHub.
Routing can be defined in the mapping as required, and indexing
operations will fail if one is not provided. This is added as an extra safe
mechanism to make sure a data is not indexed with specific routing. Issue:Issues · elastic/elasticsearch · GitHub.
When _routing is declared as required, a delete without explicit routing
value gets broadcasted to the shards instead of hitting one (replication
group). Issue:Issues · elastic/elasticsearch · GitHub.
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