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https://issues.apache.org/jira/browse/AMBARI-5462?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
John Speidel resolved AMBARI-5462.
----------------------------------
Resolution: Fixed
merged to trunk
> 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
> Labels: api, blueprints
> 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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