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Lab 4 - connection error to redis

dietrich.vatter
Posts: 1
vote app is unable to connect to redis in chapter "Feature-InternalServiceDiscovery" in the Lab 4 PDF.
ConnectionError: Error -3 connecting to redis:6379. Try again.
kubectl exec -ti redis-647d66978-r9c7t sh
:
[2023-08-03 15:08:16,321] ERROR in app: Exception on / [POST] Traceback (most recent call last): File "/usr/local/lib/python2.7/site-packages/flask/app.py", line 1982, in wsgi_app response = self.full_dispatch_request() File "/usr/local/lib/python2.7/site-packages/flask/app.py", line 1614, in full_dispatch_request rv = self.handle_user_exception(e) File "/usr/local/lib/python2.7/site-packages/flask/app.py", line 1517, in handle_user_exception reraise(exc_type, exc_value, tb) File "/usr/local/lib/python2.7/site-packages/flask/app.py", line 1612, in full_dispatch_request rv = self.dispatch_request() File "/usr/local/lib/python2.7/site-packages/flask/app.py", line 1598, in dispatch_request return self.view_functions[rule.endpoint](**req.view_args) File "/app/app.py", line 32, in hello data = json.dumps({'voter_id': voter_id, 'vote': vote}) File "/usr/local/lib/python2.7/site-packages/redis/client.py", line 1282, in rpush return self.execute_command('RPUSH', name, *values) File "/usr/local/lib/python2.7/site-packages/redis/client.py", line 578, in execute_command connection.send_command(*args) File "/usr/local/lib/python2.7/site-packages/redis/connection.py", line 563, in send_command self.send_packed_command(self.pack_command(*args)) File "/usr/local/lib/python2.7/site-packages/redis/connection.py", line 538, in send_packed_command self.connect() File "/usr/local/lib/python2.7/site-packages/redis/connection.py", line 442, in connect raise ConnectionError(self._error_message(e)) ConnectionError: Error -3 connecting to redis:6379. Try again.
Tried both with schoolofdevops/vote:v5
and schoolofdevops/vote:latest
.
0
Answers
-
Hi @dietrich.vatter,
I went through all Lab 4 and it worked for me. I used Ubuntu LTS 22.04 and 16 GB of memory, 40 GB of storage on GCP.
So, as I wasn't unable to reproduce the issue, I recommend the following:
1.- Delete the deployment.
2.- Delete the service.
3.- Create the deplyoment.
4.- Create the service.
5.- Try the App again.Regards,
Luis.0
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