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  1. Documentation
  2. DOCS-15779

[SERVER] mongo shell cannot connect to 4.2

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      Original title:
      Investigate changes in SERVER-42047: Windows 4.2 mongo shell cannot connect to a 4.2 Cluster

      ----------

      Original Downstream Change Summary

      This change imposes a new lower limit on what 4.0.x version is allowed be downgraded on Windows. This restriction applies only to Windows.

      Contact brian.lane

      Description of Linked Ticket

      Currently cannot connect from a 4.2.0-rc2 Windows shell to a 4.2 Atlas cluster.

      When testing from a 4.0.10 Windows shell to a 4.2.0-rc1 Atlas cluster:

      MongoDB shell version v4.0.10
Enter password:
connecting to: mongodb://42betatest-shard-00-00-dgtt4.gcp.mongodb.net.:27017,42betatest-shard-00-01-dgtt4.gcp.mongodb.net.:27017,42betatest-shard-00-02-dgtt4.gcp.mongodb.net.:27017/test?authSource=admin&gssapiServiceName=mongodb&replicaSet=42BetaTest-shard-0&ssl=true
2019-07-02T13:24:07.928-0400 I NETWORK  [js] Starting new replica set monitor for 42BetaTest-shard-0/42betatest-shard-00-00-dgtt4.gcp.mongodb.net.:27017,42betatest-shard-00-01-dgtt4.gcp.mongodb.net.:27017,42betatest-shard-00-02-dgtt4.gcp.mongodb.net.:27017
2019-07-02T13:24:08.056-0400 I NETWORK  [ReplicaSetMonitor-TaskExecutor] Successfully connected to 42betatest-shard-00-01-dgtt4.gcp.mongodb.net.:27017 (1 connections now open to 42betatest-shard-00-01-dgtt4.gcp.mongodb.net.:27017 with a 5 second timeout)
2019-07-02T13:24:08.056-0400 I NETWORK  [js] Successfully connected to 42betatest-shard-00-00-dgtt4.gcp.mongodb.net.:27017 (1 connections now open to 42betatest-shard-00-00-dgtt4.gcp.mongodb.net.:27017 with a 5 second timeout)
2019-07-02T13:24:08.083-0400 I NETWORK  [js] changing hosts to 42BetaTest-shard-0/42betatest-shard-00-00-dgtt4.gcp.mongodb.net:27017,42betatest-shard-00-01-dgtt4.gcp.mongodb.net:27017,42betatest-shard-00-02-dgtt4.gcp.mongodb.net:27017 from 42BetaTest-shard-0/42betatest-shard-00-00-dgtt4.gcp.mongodb.net.:27017,42betatest-shard-00-01-dgtt4.gcp.mongodb.net.:27017,42betatest-shard-00-02-dgtt4.gcp.mongodb.net.:27017
2019-07-02T13:24:08.198-0400 I NETWORK  [ReplicaSetMonitor-TaskExecutor] Successfully connected to 42betatest-shard-00-00-dgtt4.gcp.mongodb.net:27017 (1 connections now open to 42betatest-shard-00-00-dgtt4.gcp.mongodb.net:27017 with a 5 second timeout)
2019-07-02T13:24:08.198-0400 I NETWORK  [js] Successfully connected to 42betatest-shard-00-01-dgtt4.gcp.mongodb.net:27017 (1 connections now open to 42betatest-shard-00-01-dgtt4.gcp.mongodb.net:27017 with a 5 second timeout)
2019-07-02T13:24:08.344-0400 I NETWORK  [ReplicaSetMonitor-TaskExecutor] Successfully connected to 42betatest-shard-00-02-dgtt4.gcp.mongodb.net:27017 (1 connections now open to 42betatest-shard-00-02-dgtt4.gcp.mongodb.net:27017 with a 5 second timeout)
Implicit session: session { "id" : UUID("e5c3291d-b04b-4646-ab33-04085a8436ed") }
MongoDB server version: 4.2.0-rc1
WARNING: shell and server versions do not match
MongoDB Enterprise 42BetaTest-shard-0:PRIMARY>

      When testing from a 4.2.0-rc2 Windows shell to a 4.2.0-rc1 Atlas cluster:

      MongoDB shell version v4.2.0-rc2
Enter password:
connecting to: mongodb://42betatest-shard-00-01-dgtt4.gcp.mongodb.net:27017,42betatest-shard-00-02-dgtt4.gcp.mongodb.net:27017,42betatest-shard-00-00-dgtt4.gcp.mongodb.net:27017/test?authSource=admin&compressors=disabled&gssapiServiceName=mongodb&replicaSet=42BetaTest-shard-0&ssl=true
2019-07-02T13:26:01.810-0400 I  NETWORK  [js] Starting new replica set monitor for 42BetaTest-shard-0/42betatest-shard-00-01-dgtt4.gcp.mongodb.net:27017,42betatest-shard-00-02-dgtt4.gcp.mongodb.net:27017,42betatest-shard-00-00-dgtt4.gcp.mongodb.net:27017
2019-07-02T13:26:01.811-0400 I  CONNPOOL [ReplicaSetMonitor-TaskExecutor] Connecting to 42betatest-shard-00-00-dgtt4.gcp.mongodb.net:27017
2019-07-02T13:26:01.811-0400 I  CONNPOOL [ReplicaSetMonitor-TaskExecutor] Connecting to 42betatest-shard-00-02-dgtt4.gcp.mongodb.net:27017
2019-07-02T13:26:01.811-0400 I  CONNPOOL [ReplicaSetMonitor-TaskExecutor] Connecting to 42betatest-shard-00-01-dgtt4.gcp.mongodb.net:27017
2019-07-02T13:26:02.024-0400 I  CONNPOOL [ReplicaSetMonitor-TaskExecutor] Ending connection to host 42betatest-shard-00-00-dgtt4.gcp.mongodb.net:27017 due to bad connection status: HostUnreachable: Connection closed by peer; 0 connections to that host remain open
2019-07-02T13:26:02.029-0400 I  CONNPOOL [ReplicaSetMonitor-TaskExecutor] Ending connection to host 42betatest-shard-00-02-dgtt4.gcp.mongodb.net:27017 due to bad connection status: HostUnreachable: Connection closed by peer; 0 connections to that host remain open
2019-07-02T13:26:02.050-0400 W  NETWORK  [ReplicaSetMonitor-TaskExecutor] Unable to reach primary for set 42BetaTest-shard-0
2019-07-02T13:26:02.051-0400 I  NETWORK  [ReplicaSetMonitor-TaskExecutor] Cannot reach any nodes for set 42BetaTest-shard-0. Please check network connectivity and the status of the set. This has happened for 1 checks in a row.
2019-07-02T13:26:02.052-0400 I  CONNPOOL [ReplicaSetMonitor-TaskExecutor] Ending connection to host 42betatest-shard-00-01-dgtt4.gcp.mongodb.net:27017 due to bad connection status: HostUnreachable: Connection closed by peer; 0 connections to that host remain open
2019-07-02T13:26:02.338-0400 I  CONNPOOL [ReplicaSetMonitor-TaskExecutor] Ending connection to host 42betatest-shard-00-00-dgtt4.gcp.mongodb.net:27017 due to bad connection status: HostUnreachable: Connection closed by peer; 0 connections to that host remain open
2019-07-02T13:26:02.339-0400 I  CONNPOOL [ReplicaSetMonitor-TaskExecutor] Ending connection to host 42betatest-shard-00-01-dgtt4.gcp.mongodb.net:27017 due to bad connection status: HostUnreachable: Connection closed by peer; 0 connections to that host remain open
2019-07-02T13:26:02.340-0400 W  NETWORK  [ReplicaSetMonitor-TaskExecutor] Unable to reach primary for set 42BetaTest-shard-0
2019-07-02T13:26:02.340-0400 I  NETWORK  [ReplicaSetMonitor-TaskExecutor] Cannot reach any nodes for set 42BetaTest-shard-0. Please check network connectivity and the status of the set. This has happened for 2 checks in a row.
2019-07-02T13:26:02.340-0400 I  CONNPOOL [ReplicaSetMonitor-TaskExecutor] Ending connection to host 42betatest-shard-00-02-dgtt4.gcp.mongodb.net:27017 due to bad connection status: HostUnreachable: Connection closed by peer; 0 connections to that host remain open
2019-07-02T13:26:02.843-0400 I  CONNPOOL [ReplicaSetMonitor-TaskExecutor] Ending connection to host 42betatest-shard-00-00-dgtt4.gcp.mongodb.net:27017 due to bad connection status: HostUnreachable: Connection closed by peer; 0 connections to that host remain open

      The above will loop indefinitely. To verify the 4.2.0-rc2 shell could still connect to non-4.2 servers I also tested connecting to a 3.6.13 Atlas cluster:

      MongoDB shell version v4.2.0-rc2
Enter password:
connecting to: mongodb://m10-dev-shard-00-02-dgtt4.mongodb.net:27017,m10-dev-shard-00-00-dgtt4.mongodb.net:27017,m10-dev-shard-00-01-dgtt4.mongodb.net:27017/test?authSource=admin&compressors=disabled&gssapiServiceName=mongodb&replicaSet=m10-dev-shard-0&ssl=true
2019-07-02T13:30:34.669-0400 I  NETWORK  [js] Starting new replica set monitor for m10-dev-shard-0/m10-dev-shard-00-02-dgtt4.mongodb.net:27017,m10-dev-shard-00-00-dgtt4.mongodb.net:27017,m10-dev-shard-00-01-dgtt4.mongodb.net:27017
2019-07-02T13:30:34.670-0400 I  CONNPOOL [ReplicaSetMonitor-TaskExecutor] Connecting to m10-dev-shard-00-02-dgtt4.mongodb.net:27017
2019-07-02T13:30:34.670-0400 I  CONNPOOL [ReplicaSetMonitor-TaskExecutor] Connecting to m10-dev-shard-00-00-dgtt4.mongodb.net:27017
2019-07-02T13:30:34.670-0400 I  CONNPOOL [ReplicaSetMonitor-TaskExecutor] Connecting to m10-dev-shard-00-01-dgtt4.mongodb.net:27017
2019-07-02T13:30:35.433-0400 I  NETWORK  [ReplicaSetMonitor-TaskExecutor] Confirmed replica set for m10-dev-shard-0 is m10-dev-shard-0/m10-dev-shard-00-00-dgtt4.mongodb.net:27017,m10-dev-shard-00-01-dgtt4.mongodb.net:27017,m10-dev-shard-00-02-dgtt4.mongodb.net:27017
Implicit session: session { "id" : UUID("08d396c6-ce2d-4f4c-80a2-60c47f325dc9") }
MongoDB server version: 3.6.13
WARNING: shell and server versions do not match
MongoDB Enterprise m10-dev-shard-0:PRIMARY>

      My OS Details are as follows:

      systeminfo | findstr /B /C:"OS Name" /C:"OS Version"
OS Name:                   Microsoft Windows 10 Pro
OS Version:                10.0.17763 N/A Build 17763

            Assignee:
            Unassigned Unassigned
            Reporter:
            backlog-server-pm Backlog - Core Eng Program Management Team
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              Created:
              Updated:
              Resolved:
              1 year, 4 weeks, 5 days ago