hudson clearcase plugin

I am using hudson clearcase plugin( with maven), i have gone through document and it says download hudson clearcase plugin from link here: link.

  1) where i need to keep this plugin? ie which开发者_运维问答 location?
  2) Is hudson and jenkins are same?

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Look here for how to install the plugin - https://wiki.jenkins-ci.org/display/JENKINS/Plugins

You can treat Hudson and Jenkins as same, for now at least, but here is info on what are Hudson and Jenkins - http://www.infoq.com/news/2011/01/jenkins

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Note: copying the latest clearcase.hpi to your plugin directory of Jenkins means restarting Jenkins itself (or its container like Tomcat).
That can be an issue when you have several Jenkins within one container: all of them are stopped/restarted.

On the Jenkins/Hudson issue, you can also look at the blog post "Hudson and Jenkins: Two Months Later"