fix(NODE-4591): only set loadBalanced on handshake when explicitly set #3386
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Description
What is changing?
We only set
loadBalanced
on the initial hello when it is explicitly provided and set to true.Is there new documentation needed for these changes?
No.
What is the motivation for this change?
Spec compliance.
Note that the load balancer tests still fail. https://jira.mongodb.org/browse/SERVER-69146 has been filed to potentially revert the server changes so that
apiStrict: true
can be used with load balanced mode. If it turns out the server change is intended behavior, then there will probably be a drivers ticket to skip these tests on load balanced topologies.Double check the following
npm run check:lint
script<type>(NODE-xxxx)<!>: <description>