Hi,

You are referring to an old version of S4. I recommend you to use S4 0.5.0, a complete refactoring which is just being released. See the 0.5.0 tag in the git repository.

There is also a Twitter trending example.

More information on the wiki here:

https://cwiki.apache.org/confluence/display/S4/S4+Wiki

Regards,

Matthieu


On 8/14/12 2:29 PM, anup ahire wrote:
Hello,

I am trying to run twittertopic count example using zookeeper. I run one
s4 node and zookeeper on the same machine
while another S4- node and client adapter on two seperatemachines.
Client-adapter and S4 nodes are able to grab the task in zookeeper but when
I am running twitteerfeedlisterner I get this .

[root@ip-10-29-158-103 bin]# ./twitter_feed_listener ahireanup winner*
Exception in thread "main" java.lang.NullPointerException
     at io.s4.client.Driver.init(Driver.java:279)
     at
io.s4.example.twittertopiccount.TwitterFeedListener.init(TwitterFeedListener.java:82)
     at
io.s4.example.twittertopiccount.TwitterFeedListener.main(TwitterFeedListener.java:298)

Can anyone please help ?

Thanks,
Anup


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