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base repository: postgresql-cfbot/postgresql
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  • 2 commits
  • 10 files changed
  • 2 contributors

Commits on Dec 21, 2025

  1. pg_terminate_backend_msg and pg_cancel_backend_msg 

    Sometimes it is useful to terminate some backend
process with additional message from admin.

This patch introduces two new functions:
 - pg_terminate_backend_msg(pid, timeout, msg)
 - pg_cancel_backend_msg(pid, msg)

The functions are similar with pg_terminate_backend/pg_cancel_backend,
but adds additional argument: the message, that will be passed into
FATAL/ERROR packet when terminating/canceling backend.

To do that, the patch introduces new module: BackendMsg - shared memory
region that holds pairs of (message, pid) which are checked in ProcessInterrupts()

Ex. of usage:
postgres=# select pg_terminate_backend_msg(pg_backend_pid(), 0, 'Some message');
FATAL:  terminating connection due to administrator command: Some message

Author: Daniel Gustafsson <daniel@yesql.se>
Author: Roman Khapov <r.khapov@ya.ru>
Reviewed-by:
Discussion:
    @rkhapov
    rkhapov authored and Commitfest Bot committed Dec 21, 2025
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  2. [CF 6331] v2 - Message in pg_terminate_backend 

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

https://commitfest.postgresql.org/patch/6331

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/F6DCC9FF-002B-4CD5-9D36-5C8710142958@yandex-team.ru
Author(s): Roman Khapov
    Commitfest Bot committed Dec 21, 2025
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