Solr merge related metrics not showing up in jconsole

[suresh pendap]

Hello,

I am using Solr version 6.6 and I am following the document to get the
Segment merge related metrics
https://lucene.apache.org/solr/guide/6_6/metrics-reporting.html#index-merge-metrics

I added the configuration to expose the merge related metrics to my
solrconfig.xml file as below

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