Tribe node set up

Hello,

I am trying to set up a tribe node. My elasticsearch.yml is as below. Elastic search version is 2.2.0:

tribe:

t1:
cluster.name: pr_site
discovery.zen.ping.multicast.enabled: false
discovery.zen.ping.unicast.hosts: ["192.168.192.131:9200"]
t2:
cluster.name: ha_site
discovery.zen.ping.multicast.enabled: false
discovery.zen.ping.unicast.hosts: ["192.168.192.195:9200"]

tribe.on_conflict: prefer_t1

elasticsearch is not getting started due to the below error:

Exception in thread "main" SettingsException[Failed to load settings from [elasticsearch.yml]]; nested: ElasticsearchParseException[duplicate settings key [cluster.name] found at line number [106], column number [15], previous value [pr_site], current value [ha_site]];
Likely root cause: ElasticsearchParseException[duplicate settings key [cluster.name] found at line number [106], column number [15], previous value [pr_site], current value [ha_site]]
at org.elasticsearch.common.settings.loader.XContentSettingsLoader.serializeValue(XContentSettingsLoader.java:147)
at org.elasticsearch.common.settings.loader.XContentSettingsLoader.serializeObject(XContentSettingsLoader.java:109)
at org.elasticsearch.common.settings.loader.XContentSettingsLoader.load(XContentSettingsLoader.java:67)
at org.elasticsearch.common.settings.loader.XContentSettingsLoader.load(XContentSettingsLoader.java:45)
at org.elasticsearch.common.settings.loader.YamlSettingsLoader.load(YamlSettingsLoader.java:46)
at org.elasticsearch.common.settings.Settings$Builder.loadFromStream(Settings.java:1074)
at org.elasticsearch.common.settings.Settings$Builder.loadFromPath(Settings.java:1061)
at org.elasticsearch.node.internal.InternalSettingsPreparer.prepareEnvironment(InternalSettingsPreparer.java:88)
at org.elasticsearch.common.cli.CliTool.(CliTool.java:107)
at org.elasticsearch.common.cli.CliTool.(CliTool.java:100)
at org.elasticsearch.bootstrap.BootstrapCLIParser.(BootstrapCLIParser.java:48)
at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:241)
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:35)
Refer to the log for complete error details.

Please help.

Now the earlier error is gone, by re-aligning the text in elasticsearch.yml in tribe as below:
t1:
cluster.name: pr_site
t2:
cluster.name: ha_site

But while starting Kibana I am getting the error -- Unable to create Kibana index ".Kibana". Please help.

Is tribe a full proof feature for production?