Erik Grinaker f312c6571f pageserver: respond to multiple shutdown signals (#9982) ...

## Problem

The Pageserver signal handler would only respond to a single signal and
initiate shutdown. Subsequent signals were ignored. This meant that a
`SIGQUIT` sent after a `SIGTERM` had no effect (e.g. in the case of a
slow or stalled shutdown). The `test_runner` uses this to force shutdown
if graceful shutdown is slow.

Touches #9740.

## Summary of changes

Keep responding to signals after the initial shutdown signal has been
received.

Arguably, the `test_runner` should also use `SIGKILL` rather than
`SIGQUIT` in this case, but it seems reasonable to respond to `SIGQUIT`
regardless.

2024-12-03 18:47:17 +00:00

..

pageserver.rs

pageserver: respond to multiple shutdown signals (#9982)

2024-12-03 18:47:17 +00:00