solr 7.0: mbeans stats missing for many keys

[Nawab Zada Asad Iqbal]

hi,

When upgrading from solr4.5 to solr 7.0, I noticed that many key names in
solr-mbeans (
http://localhost:8983/solr/tcore/admin/mbeans?stats=true&wt=json) have
changed. Mostly, "parent key" name is also appended to the stats keyname
e.g., instead of  cumulative_evictions, I now have to look for
CACHE.searcher.filterCache.cumulative_evictions. However, there are some
keys for which I couldn't find any substitute, see the following snippet
from 4.5 and 7.0 comparing dismax sections:

Is there a bug for the keys which were found in 4.5 but missing in 7.0? Or
do i need to specify some parameter in the admin/mbeans url which was not
needed in older versions?

Solr 4.5:

      "dismax":{
        "class":"org.apache.solr.handler.component.SearchHandler",
        "version":"4.5-SNAPSHOT",
        "description":"Search using components:
query,facet,mlt,highlight,stats,debug,",
        "src":"$URL:
https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_5/solr/core/src/java/org/apache/solr/handler/component/SearchHandler.java
$",
        "stats":{
          "handlerStart":1506588718591,
          "requests":282407,
          "errors":0,
          "timeouts":0,
          "totalTime":1.5715063257002E7,
          "avgRequestsPerSecond":1.7463307695871293,
          "5minRateReqsPerSecond":5.180978453822239E-46,
          "15minRateReqsPerSecond":1.1079266845452606E-14,
          "avgTimePerRequest":55.64686164649601,
          "medianRequestTime":6.3148865,
          "75thPcRequestTime":32.59734625,
          "95thPcRequestTime":190.04390339999998,
          "99thPcRequestTime":726.895605740004,
          "999thPcRequestTime":2974.306584901}},




Solr 7:

      "dismax":{
        "class":"org.apache.solr.handler.component.SearchHandler",
        "description":"Search using components:
query,facet,facet_module,mlt,highlight,stats,expand,terms,debug,",
        "stats":{
          "QUERY.dismax.errors.count":9,
          "QUERY.dismax.timeouts.count":0,
          "QUERY.dismax.totalTime":1985804713824,
          "QUERY.dismax.clientErrors.count":9,
          "QUERY.dismax.handlerStart":1506749061230,
          "QUERY.dismax.serverErrors.count":0,
          "QUERY.dismax.requestTimes.meanRate":38.920121769557625,
          "QUERY.dismax.requests":52147}},



Thanks

Nawab