John Speidel created AMBARI-5462:
------------------------------------
Summary: Allow host group scoped configuration to be specified in
Blueprint
Key: AMBARI-5462
URL: https://issues.apache.org/jira/browse/AMBARI-5462
Project: Ambari
Issue Type: New Feature
Reporter: John Speidel
Assignee: John Speidel
Fix For: 1.6.0
Allow configuration to be specified for host groups. This configuration will
provide overrides for all hosts assigned to the host group. This configuration
is specified inline within the host group.
An example of a simple one host group blueprint with both cluster scoped and
host group scoped configuration.
{code}
{
"configurations" : [
{
"core-site" : {
"fs.trash.interval" : "480",
"ipc.client.idlethreshold" : "8500",
"my.awesome.property" : "excellent"
}
},
{
"mapred-site" : {
"tasktracker.http.threads" : "45"
}
}
],
"host_groups" : [
{
"name" : "host_group_1",
"configurations" : [
{
"core-site" : {
"fs.trash.interval" : "475"
}
}
],
"components" : [
{
"name" : "HDFS_CLIENT"
},
{
"name" : "GANGLIA_SERVER"
},
{
"name" : "AMBARI_SERVER"
},
{
"name" : "MAPREDUCE_CLIENT"
},
{
"name" : "GANGLIA_MONITOR"
},
{
"name" : "DATANODE"
},
{
"name" : "NAMENODE"
},
{
"name" : "JOBTRACKER"
},
{
"name" : "HISTORYSERVER"
},
{
"name" : "SECONDARY_NAMENODE"
},
{
"name" : "NAGIOS_SERVER"
},
{
"name" : "TASKTRACKER"
}
],
"cardinality" : "1"
}
],
"Blueprints" : {
"blueprint_name" : "single-node-test",
"stack_name" : "HDP",
"stack_version" : "1.3.3"
}
}
{code}
*Note:* Allowing service configurations which are specified external to the
host group definition to allow for configuration reuse across host groups will
be handled in a subsequent Jira.
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