Dd-trace-js: Mongo/DocDB Insert, update and admin commands not recorded with useUnifiedTopology: true

[jprosevear]

Describe the bug
Connect to DocumentDB with useUnifiedTopology: true , traces will show *-mongodb spans but only for find operations. insert, update, admin ops all appear to be missing. useUnifiedTopology: false shows the spans.

Environment
AWS/EC2

• Operation system:
  $ uname -a
  Linux ip-172-30-0-45.us-west-2.compute.internal 4.14.173-137.229.amzn2.x86_64 #1 SMP Wed Apr 1 18:06:08 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

• Node version:
  v14.2.0

• Tracer version:
  0.24.0

• Agent version:
  Agent 6.21.1

[jprosevear]

I saw number #1048 but this is different in that some queries show up, others do not.

[nagypeterjob]

Same thing for us since we set useUnifiedTopology: true. findAndModify and insert queries are not traced.

Tracer version: 0.26.1
Agent version: 7.19.2
Cluster Agent version: 1.5.2

[rochdev]

I'm currently working on this and it will be fixed in next release. Basically most of the code skips the Server class that we're instrumenting when using unified topology.

[jprosevear]

Confirmed working.