Work earlier this year left some dead code in our operations code, resulting in this warning message reported by multiple users. While we still have a few cycles in our codebase yet, this will quiet Node.js 14's circular dependency warnings.
Sessions are only acquired when operations are executed
Drivers use an implicit session for all operations where an explicit session is not provided. A subtle bug was introduced when session support was implemented where implicit sessions were created and assigned to operations even if they were about to sit in a queue waiting for execution. This results in the driver creating many sessions rather than reusing pooled ones. The fix is to ensure a session is only checked out of the pool when the operation is about to be written to a server.
Thanks very much to all the community members who contributed to this release!
Release Notes
Bug
[NODE-2536] - Circular dependency in Node.js 14 nightly
[NODE-2552] - Server session creation grows unbounded with every operation call
Improvement
[NODE-2534] - Document options supported by the unified topology
[NODE-2560] - Make &[#39](https://github.com/mongodb/node-mongodb-native/issues/39);reIndex&[#39](https://github.com/mongodb/node-mongodb-native/issues/39); a standalone-only command
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Bumps mongodb from 3.5.6 to 3.5.7.
Release notes
Sourced from mongodb's releases.
Commits
6eb6d6c
chore(release): 3.5.77f1cf35
refactor(ChangeStream): use maybePromise for next/hasNext8851a28
docs: fix event names in gridFS tutorial8a69ed6
chore: update snappy version to fix issue with node v461aaa3d
doc: document options supported by the unified topologyf778ef5
test: reduce flakiness of socket timeout test3d05a6d
fix: limit growth of server sessions through lazy acquisition56a1b8a
fix: remove circular dependency warnings on node 1484d2354
test: temporarily skip sharded transactions tests0b6f813
chore: update package lock to depend on latest bson versionDependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
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