Use Case

As a Node Driver Engineer
I want ConnectionPoolCleared events to be emitted before a Connection fails to be checked out as a result of a network error.
So that our CMAP implementation is spec compliant once DRIVERS-1003 merges.

User Impact

• Unknown

Unknowns

• How do we guarantee the correct ordering of these events?
• Would this affect end users?

Acceptance Criteria

Implementation Requirements

• Ensure that when a network error occurs on Connection checkout that the ConnectionPoolCleared event gets emitted before the ConnectionClosed and ConnectionCheckOutFailed events.

Testing Requirements

• Unskip logging spec test from NODE-4720
• Remove test/connection-monitoring-and-pooling/unified-cmap-node-specs/connection-logging.json
• Remove code to run modified spec test in test/integration/connection-monitoring-and-pooling/connection_monitoring_and_pooling.test.ts

Documentation Requirements

• None