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The OplogWriterImpl holds on to an OperationContext throughout its lifetime, and this OperationContext will have a session after the first write is done. If a rollback occurs, that WT's session cache will have a stale epoch, and any future cursors from it will be leaked.

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xgen-internal-githook commented on Mon, 1 Dec 2025 17:56:31 +0000: Author: {'name': 'gitpushjoe', 'email': 'joseph.obaraye@mongodb.com', 'username': 'gitpushjoe'} Message: SERVER-110832 Oplog writer should not hold on to session through rollbacks (#43645) GitOrigin-RevId: 2840b41355f1df60cb5bf2f8bb3ca07059545eed Branch: v8.0 https://github.com/mongodb/mongo/commit/46db811b0b7ddb9834318453c507f76c1b434713 xgen-internal-githook commented on Wed, 19 Nov 2025 17:48:34 +0000: Author: {'name': 'gitpushjoe', 'email': 'joseph.obaraye@mongodb.com', 'username': 'gitpushjoe'} Message: SERVER-110832 Oplog writer should not hold on to session through rollbacks (#43643) GitOrigin-RevId: d30b6856465084805ccffbb393bf067a08dadaea Branch: v8.2 https://github.com/mongodb/mongo/commit/47e6b69dce40b507a17b9b0d1c64ea6c1d139c6a xgen-internal-githook commented on Fri, 3 Oct 2025 21:26:19 +0000: Author: {'name': 'gitpushjoe', 'email': 'joseph.obaraye@mongodb.com', 'username': 'gitpushjoe'} Message: SERVER-110832 Refresh OpCtx in oplog_writer for rollback (#41581) GitOrigin-RevId: ec3d8546f6b683be97684892ca003b0b6de115ec Branch: master https://github.com/mongodb/mongo/commit/3bd4740bcbc24d0f84c57dc0a4266560447bfd08

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