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From "Yu, Tao" <>
Subject RE: role_command_order.json specification
Date Wed, 11 Feb 2015 20:10:16 GMT
Thanks Dmitro!

So one entry in "general_deps" like:


Means before "start HIVE_SERVER" ,  "NODEMANAGER-START" and "MYSQL_SERVER-START" should be
executed first?   And :


Means before "NAGIOS_SERVER-INSTALL", several components like "HIVE_CLIENT", "HCAT", "MAPREDUCE_CLIENT"
and "OOZIE_CLIENT" should be installed first ?

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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