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base repository: postgresql-cfbot/postgresql
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base: cf/6201~1
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head repository: postgresql-cfbot/postgresql
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compare: cf/6201
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  • 2 commits
  • 7 files changed
  • 2 contributors

Commits on Dec 27, 2025

  1. Use Windows Job Objects to prevent orphaned child processes. 

    When the postmaster exits on Windows, backends can continue running
because Windows lacks Unix's getppid() orphan detection. Orphaned
backends hold locks and shared memory, preventing clean restart.

Create a Job Object at postmaster startup and assign the postmaster
to it. Children inherit job membership automatically. Configure with
KILL_ON_JOB_CLOSE so the kernel terminates all children when the job
handle closes on postmaster exit.

This is more reliable than existing approaches (inherited handles,
shared memory flags) because it's kernel-enforced with no polling.

Job creation is allowed to fail non-fatally. Some environments run
PostgreSQL under an existing job, and Windows 7 disallows nested jobs.
In such cases we log a message and proceed without orphan protection.

Author: Bryan Green
    @dbgreen
    dbgreen authored and Commitfest Bot committed Dec 27, 2025
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  2. [CF 6201] v2 - Fix orphaned backend processes on Windows using Job Ob… 

    …jects

This branch was automatically generated by a robot using patches from an
email thread registered at:

https://commitfest.postgresql.org/patch/6201

The branch will be overwritten each time a new patch version is posted to
the thread, and also periodically to check for bitrot caused by changes
on the master branch.

Patch(es): https://www.postgresql.org/message-id/a7109b5f-6590-476c-810c-18f1af588238@gmail.com
Author(s): Bryan Green
    Commitfest Bot committed Dec 27, 2025
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