Logstash1.4.2 service is not starting

Hi All,
I am using logstash1.4.2.rpm from elasticsearch site.
this rpm create the logstash service ,but it is not working

Please tell me if someone is using this logstash version and also to
restart the service successfully.

Thanks and Regards
Ankit Mittal

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Are there any errors in your log file (most of the time /var/log/logstash/logstash.log respectively logstash.err)? If so, please post them here.