-
Dridi Boukelmoune authored
When mgt sends a command to the cache process, whether it is a period ping or an actual operation, it must complete within cli_timeout. When the cache fails to meet this requirement, mgt sends a SIGQUIT signal to the cache process. As a result the cache process MAY dump a core file for post-mortem analysis. When the core file is missing we are left to our own devices. To mitigate this, a new signal handler is added for SIGQUIT, but since we can't (or don't even try to) guarantee delivery on the CLI thread, we make a last-ditch effort to forward SIGQUIT signals to properly panic from the CLI thread. With a regular panic we may get both a panic report and a core dump. I didn't add test coverage for this, since we try to avoid intentional core dumps in test cases with the `no_coredump` feature flag that turns SIGQUIT into a SIGKILL signal.
537b74f5