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From "Yu, Tao" <>
Subject RE: role_command_order.json specification
Date Wed, 11 Feb 2015 20:59:13 GMT
Thanks Dmitro!

>From what you explained, the "key" names list are programmatically generated. If that's
the case, do we still have to update this role_command_order.json file?

From: Dmitro Lysnichenko []
Sent: Wednesday, February 11, 2015 3:45 PM
Subject: Re: role_command_order.json specification

Names are programmatically generated. Like start/stop/install. Not sure about restart, decommission
and others since they are "custom commands" (in terms of advanced, non-standard)
On 11/02/2015 10:34 PM, Yu, Tao wrote:
Hi Dmitro,

Is there a list of the "key" and "value" so user can look up? how are they defined?


From: Dmitro Lysnichenko []
Sent: Wednesday, February 11, 2015 3:00 PM
Subject: Re: role_command_order.json specification


As I remember, key is just an action (e.g. start component HIVE_SERVER), and value is just
a list "what should be executed before". role_command_order.json complements dependencies
inherited from parent stack, if any.

Hope this helps
On 11/02/2015 09:52 PM, Yu, Tao wrote:

I am new to Ambari and trying to create my own non-HDP stack. Could anyone please tell me
any detailed specification info about the file role_command_order.json, like how to define
the key-value pair in this file?


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