[SERVER-19365] Allow one extra connection from localhost even if mongod is out of connections Created: 10/Jul/15  Updated: 06/Dec/22  Resolved: 04/Feb/20

Status: Closed
Project: Core Server
Component/s: Admin, Networking
Affects Version/s: None
Fix Version/s: None

Type: Improvement Priority: Minor - P4
Reporter: Igor Canadi Assignee: Backlog - Service Architecture
Resolution: Won't Fix Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Related
is related to SERVER-19360 Out of connections when building an i... Closed
Assigned Teams:
Service Arch
Sprint: Service Arch 2019-11-18, Service Arch 2019-12-02, Service Arch 2019-12-16, Service Arch 2019-12-30, Service Arch 2020-01-13
Participants:

 Description   

We had a situation where mongod ran out of connections and we couldn't connect to it with a shell. There was little we can do without a shell access.

It would be good to allow one extra connection from localhost. That way we'd be able to debug and remediate mongo even in these situations.

As a background, check out https://jira.mongodb.org/browse/SERVER-19360



 Comments   
Comment by Mira Carey [ 04/Feb/20 ]

We currently exempt unix domain sockets from maxConns checks. Given that, I'm closing this as wontfix, as using the unix domain socket is an applicable workaround.

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