Nutch 2.2.1 does not continue after injector operation

Question

I am studying nutch and trying to use carawl according to this tutorial . I am working on an ubuntu machine with a bash shell. But when I run the script, execution happens, but nothing happens after that,

InjectorJob: starting at 2014-03-23 09:28:50
InjectorJob: Injecting urlDir: urls/seed.txt

I waited several hours, I tried to work with sudo. The same problem arises. I tried using the default URLs provided in the tutorial. What are the possible errors?

Answer 1

What was not, I did not add the proxy and port data in the nutch-site.xml file, since I accessed through the proxy. setting the same for Ant or JVM is not enough