Re: Kill postgresql process

On Tue, 2021-06-15 at 00:25 +0800, Julien Rouhaud wrote:

Le mar. 15 juin 2021 à 00:15, Laurenz Albe:

- Attach to the backend with gdb.

- Enter "print ProcessInterrupts()"

Of course that will not work if the backend is in uninterruptible

sleep (for example, stuck in an I/O operation).

that may be a terrible idea and leave a buffer pinned or something.

and if it's not it won't tell us where we're missing a CALL_FOR_INTERRUPTS

If there is an error, AbortCurrentTransaction() gets called, which releases
all buffer pins.  If you were stuck in an endless loop in a critical
section, you are going to crash anyway.

If you want to investigate where you are stuck, run a backtrace first.

Yours,
Laurenz Albe
--
Cybertec | https://www.cybertec-postgresql.com