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Type: Task
Resolution: Fixed
Priority: Major - P3
Fix Version/s: 4.0
Affects Version/s: None
Component/s: None
Labels:
- neweng

Epic Link:
PyMongo 4.0 Breaking Changes

Backwards Compatibility:
Minor Change

In ~~PYTHON-2121~~ we introduced the directConnection=true/false option. Currently this option defaults to None and retains PyMongo's legacy replica set discovery behavior. In PyMongo 4.0 we should change the default to directConnection=false and make pymongo automatically discover replica set members even when only one seed host is given and even when the replicaSet name is not given.

causes

PYTHON-3021 Client sends incorrect read preference to standalones

Closed

PYTHON-3027 Connecting to a replica set member in the RSGhost state leads to a "connection pool paused" error

Closed

PYTHON-3246 Starting from PyMongo v4+ can't connect to MongoDB via ssh

Closed

PYTHON-3240 pymongo 4.0+ hello.isWritablePrimary always returns True even when run against secondary instance

Closed

is related to

PYTHON-3247 Mitigate user issues caused by change in directConnection defaults in 4.x

Closed

related to

PYTHON-2121 Unify behavior around configuration for replica set discovery

Closed

(1 related to)

Assignee:: Julius Park (Inactive)

Reporter:: Shane Harvey

Votes:: 0 Vote for this issue

Watchers:: 2 Start watching this issue

Created:: Apr 30 2021 12:51:19 AM UTC

Updated:: Oct 29 2023 02:29:06 AM UTC

Resolved:: Sep 15 2021 08:11:03 PM UTC

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