Github user anandsubbu commented on the issue:
https://github.com/apache/metron/pull/817
If the install fails the first time due to ES being down, then we WARN and
move on. If ES service comes up later, the admin needs to install the templates
subsequently by using 'Ambari -> Metron -> Service Actions -> Elasticsearch
Template Install' option. Alternatively s/he can also stop the Indexing service
and start again so the template will be installed (Note that calling "restart"
on the Indexing service will not trigger the template installation)
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