shibboleth daemon died with heavy apache load

[Cantor, Scott]

> Do you have any idea what could have caused shibd to just stop?  I checked
> all server logins and noone had logged in and stopped the process.

If you're using prefork, any spike in httpd traffic will eventually kill shibd.

https://wiki.shibboleth.net/confluence/display/SHIB2/NativeSPApacheConfig

Setting a stackSize as documented can help, but there's no real way to prevent it, the thread model was designed around the worker MPM.

If you're using worker, I'd be very surprised if it's anything but an anomaly or a consequence of a bug, either old or new and not easily reproduced. Either way, it's a crash, it's not like it's going to warn you.

-- Scott