Hi,
Apologies if this isn't the correct forum to discuss this error as it appears to be Python and SCGI related, but I'm hoping someone here has some pointers.
Testing our Python application stack on Ubuntu 18.04 with latest versions of SCGI (1.15) and the bundled version of Apache (2.4.29-1ubuntu4.8) I'm getting weird errors after a previous error occurs.
Our application stack is as follows:
Browser --HTTP--> Apache+mod_proxy_scgi --SCGI--> python app --XMLRPC--> service
If the service that our app calls returns an error, then I eventually (after timeout) get a 500 in the browser, as expected.
However, then subsequent requests to our web app result in the following:
[2019-08-20 09:46:47 4534 ERROR server __init__.py(128):run] Server failure.
Traceback (most recent call last):
File "/home/colin/svn/favoptic/trunk/favsite2/server/__init__.py", line 119, in run
max_children = config.max_children)
File "/home/colin/svn/favoptic/trunk/favsite2/server/fav_scgi_server.py", line 87, in run
s.serve()
File "/home/colin/venv/local/lib/python2.7/site-packages/scgi/scgi_server.py", line 349, in serve
self.serve_on_socket(self.get_listening_socket())
File "/home/colin/svn/favoptic/trunk/favsite2/server/fav_scgi_server.py", line 59, in serve_on_socket
SCGIServer.serve_on_socket(self, s)
File "/home/colin/venv/local/lib/python2.7/site-packages/scgi/scgi_server.py", line 340, in serve_on_socket
self.delegate_request(conn)
File "/home/colin/venv/local/lib/python2.7/site-packages/scgi/scgi_server.py", line 321, in delegate_request
self.spawn_child(conn)
File "/home/colin/venv/local/lib/python2.7/site-packages/scgi/scgi_server.py", line 208, in spawn_child
for ch in self.children.values(): os.close(ch)
AttributeError: 'list' object has no attribute 'values'
[2019-08-20 09:46:47 4534 INFO server __init__.py(133):run] Child(publisher) exit: 0
and this keeps occuring many times per second.
If I replace SCGI with version 1.8, it seems to work fine. Errors are reported correctly, and the subsequent requests also work fine.
Has anyone else here seen this before?
/Colin
