[CSHARP-3372] Investigate `Test cluster has no writable server.` exception on 4.4 server Created: 03/Feb/21  Updated: 31/Mar/22

Status: Backlog
Project: C# Driver
Component/s: Testing
Affects Version/s: None
Fix Version/s: None

Type: Bug Priority: Major - P3
Reporter: Dmitry Lukyanov (Inactive) Assignee: Unassigned
Resolution: Unresolved Votes: 1
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Epic Link: Improve Testing

 Description   

See this EG: https://evergreen.mongodb.com/task_log_raw/dot_net_driver_unsecure_tests__version~4.4_os~windows_64_topology~replicaset_auth~noauth_ssl~nossl_test_net452_patch_2de35a4c9e6f5bcb76ec1bc63a242c4333c4d276_601ad68c3e8e864c4451a602_21_02_03_16_59_56/0?type=T#L964

It could be a server issue since I see this in the server log:

{
    "t": {
        "$date": "2021-02-03T17:18:39.708+00:00"
    },
    "s": "I",
    "c": "NETWORK",
    "id": 22989,
    "ctx": "conn84",
    "msg": "Error sending response to client. Ending connection from remote",
    "attr": {
        "error": {
            "code": 9001,
            "codeName": "SocketException",
            "errmsg": "An established connection was aborted by the software in your host machine."
        },
        "remote": "[::1]:65502",
        "connectionId": 84
    }
}

but it's unclear why we don't see this in the heartbeat exception.

 


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