question Re: Assume you reboot a datanode in a running cluster Is there a way to auto restart all the Hadoop processes? Is there a way to do so in Ambari? Or is a script required here? in Archives of Support Questions (Read Only)

Assume you reboot a datanode in a running cluster Is there a way to auto restart all the Hadoop processes? Is there a way to do so in Ambari? Or is a script required here?

adaher — Fri, 15 Apr 2016 20:09:41 GMT

Re: Assume you reboot a datanode in a running cluster Is there a way to auto restart all the Hadoop processes? Is there a way to do so in Ambari? Or is a script required here?

sshimpi — Fri, 15 Apr 2016 20:11:27 GMT

By default rebooting a datanode does not start/stop/restart all hadoop processes also there is no facility from ambari to do so. You need to write custom script or api to do so..

Re: Assume you reboot a datanode in a running cluster Is there a way to auto restart all the Hadoop processes? Is there a way to do so in Ambari? Or is a script required here?

emaxwell — Fri, 15 Apr 2016 20:20:55 GMT

@Alexander

Check out this question thread. See if that helps?

Re: Assume you reboot a datanode in a running cluster Is there a way to auto restart all the Hadoop processes? Is there a way to do so in Ambari? Or is a script required here?

adaher — Fri, 15 Apr 2016 20:37:35 GMT

@emaxwell

Great thread Eric. Cheers.