Russell Branca created COUCHDB-2938:
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Summary: Filtered changes should use ddoc_cache
Key: COUCHDB-2938
URL: https://issues.apache.org/jira/browse/COUCHDB-2938
Project: CouchDB
Issue Type: Bug
Components: Database Core
Reporter: Russell Branca
One of the primary functions of the ddoc_cache is to avoid having to ship the
entire ddoc across the wire for every shard. You can see where we do this for
views in [1]. We currently do not use the same pattern for filtered changes
feeds, which means we're still susceptible to overloading a network with ddoc
traffic as the ddoc needs to be sent to every shard that will filter docs. We
should switch filtered changes feeds to use the same patterns as map and reduce
views.
[1]
https://github.com/apache/couchdb-fabric/blob/master/src/fabric_rpc.erl#L91-L92
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