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description: server selection for load-balanced clusters
schemaVersion: '1.3'
runOnRequirements:
- topologies: [ load-balanced ]
createEntities:
- client:
id: &client0 client0
useMultipleMongoses: true
observeEvents:
- commandStartedEvent
- database:
id: &database0 database0
client: *client0
databaseName: &database0Name database0Name
- collection:
id: &collection0 collection0
database: *database0
collectionName: &collection0Name coll0
collectionOptions:
readPreference:
# Use secondaryPreferred to ensure that operations can succeed even if the shards are only comprised of one
# server.
mode: &readPrefMode secondaryPreferred
initialData:
- collectionName: *collection0Name
databaseName: *database0Name
documents: []
tests:
- description: $readPreference is sent for load-balanced clusters
operations:
- name: find
object: *collection0
arguments:
filter: {}
expectEvents:
- client: *client0
events:
- commandStartedEvent:
command:
find: *collection0Name
filter: {}
$readPreference:
mode: *readPrefMode
commandName: find
databaseName: *database0Name
|
