merge metrics not showing up in Jconsole

[suresh pendap]

Hi,
I am using Solr version 6.6.0 and am following the document
https://lucene.apache.org/solr/guide/6_6/metrics-reporting.html#index-merge-metrics
to enable Index merge metrics.

I have added the below config to my solrconfig.xml file


  <indexConfig>
    <metrics>
      <majorMergeDocs>524288</majorMergeDocs>
      <bool name="mergeDetails">true</bool>
      <bool name="directoryDetails">true</bool>
    </metrics>
    ...
  </indexConfig>



Then I restarted the solr servers.  I do see the INDEX merge metrics when I
use the REST API
http://localhost:8983/solr/admin/metrics?wt=json&&group=core

However I do not see the INDEX category and the merge metrics in the
Jconsole window.

Is this a known issue?

Do I need to configure something else to be able to expose the Index Merge
metrics as JMX mbeans?


Thanks
Suresh