[GitHub] [solr] noblepaul opened a new pull request, #986: SOLR-16337: implement Zk metrics

[GitBox]

noblepaul opened a new pull request, #986:
URL: https://github.com/apache/solr/pull/986

   implement metrics for ZK ops
   
   ### How to use?
   
   - start your servers 
   - hit the end point 
`http://localhost:8983/solr/admin/metrics?key=solr.node:CONTAINER.zkClient`
   
   sample output
   ```
   {
     "metrics":{
       "solr.node:CONTAINER.zkClient":{
         "watchesFired":29,
         "reads":452,
         "writes":171,
         "bytesRead":1260447,
         "bytesWritten":483353,
         "multiOps":26,
         "cumulativeMultiOps":34,
         "childFetches":139,
         "cumulativeChildrenFetched":388,
         "existsChecks":427,
         "deletes":3}}}
   ```


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