After graceful restart, some python wsgi processes fail with 500 (internal server error):
[20:06:33] [mpm_prefork:notice] AH00171: Graceful restart requested, doing restart
[20:06:36] [wsgi:error] Truncated or oversized response headers received from daemon process 'foo_vums_di2865'
(The above log lines were cut to make them easier to read)
What could be the reason?
Is there a way to restart apache without creating 500 responses.
Delays of some seconds are ok, but failures should get avoided.
Versions:
- Apache/2.4.34
- wsgi: 4.5.18