I've written a topology in Kafka and Storm. The topology works great until I
try to make a Bolt that tries to either connect to the internet (via a restful
API) or localhost (MongoDB) -- Storm is not able to connect to either. Does
anyone know why this might happen? Is Kafka interfering somehow? For what it's
worth, I'm running Kafka and Storm inside a Docker container that is itself run
inside a server protected by a proxy server with a strong firewall. What makes
this tough to debug is that I'm able to connect to localhost and I'm also able
to run the restful API inside the Docker container and firewall when I'm not
using Storm. So I'm guessing either Kafka or Storm is causing the issue. When
Storm runs, is the process handed off to root? I have proxy settings that are
only configured for myself (not root), so it's possible that if the Storm
process is handed off to some ID other than my own then my proxy settings would
no longer apply, although this shouldn't affect a connection to localhost.
Below is my python Bolt code if anyone is interested.
import storm
import urllib2
class TestBolt(storm.BasicBolt):
def process(self, tup):
throw_away_input = str(tup.values[0]).strip()
response = urllib2.urlopen('http://python.org/')
html = response.read()
storm.emit([html])
TestBolt().run()
Thanks,
Ryan
Ryan Zotti
Software Engineer, Enterprise Data Services
804.393.1656
[email protected]<mailto:[email protected]>
[cid:[email protected]]
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