On Fri, May 13, 2022 at 06:16:23PM +0800, Japin Li wrote: > I had an incident on my Postgres 14 that queries hung in wait event > IPC / MessageQueueInternal, MessageQueueReceive. It likes [1], > however, it doesn't have any discussions.
If the process is still running, or if the problem recurs, I suggest to create a corefile with gcore, aka gdb generate-core-file. Then, we can look at the backtrace at our leisure, even if the cluster needed to be restarted right away. What minor version of postgres is this, and what OS ? -- Justin