DOCSP-31547 queryAnalyzers serverStatus diagnostics (#4228)

* DOCSP-31547 queryAnalyzers serverStatus diagnostics

* queryAnalyzers

* internal review

Author: jmd-mongo

source/reference/command/serverStatus.txt

@@ -3867,6 +3867,51 @@ planCache
    Number of slot-based execution engine query plans which were not found 
    in the query cache and went through the query planning phase.
 
+.. _server-status-queryAnalyzers:                                       
+                                                                        
+queryAnalyzers                                  
+~~~~~~~~~~~~~~
+
+.. versionadded:: 7.0                                                   
+                                                                        
+.. code-block:: javascript                                              
+                                                                        
+   queryAnalyzers: {                                                    
+     activeCollections: <integer>,
+     totalCollections: <integer>,
+     totalSampledReadsCount: <integer>,
+     totalSampledWritesCount: <integer>,
+     totalSampledReadsBytes: <integer>,
+     totalSampledWritesBytes: <integer>
+   }
+
+.. serverstatus:: queryAnalyzers.activeCollections
+
+   Number of collections the :ref:`query analyzer 
+   <configureQueryAnalyzer>` actively samples.           
+                                                                        
+.. serverstatus:: queryAnalyzers.totalCollections
+  
+   Total number of sampled collections.
+
+.. serverstatus:: queryAnalyzers.totalSampledReadsCount
+
+   Total number of sampled read queries.
+
+.. serverstatus:: queryAnalyzers.totalSampledWritesCount
+
+   Total number of sampled write queries.
+
+.. serverstatus:: queryAnalyzers.totalSampledReadsBytes
+   
+   Total size of sampled read queries, in bytes. This metric is
+   only available when running ``serverStatus`` on ``mongod``.
+
+.. serverstatus:: queryAnalyzers.totalSampledWritesBytes
+   
+   Total size of sampled write queries, in bytes. This metric is 
+   only available when running ``serverStatus`` on ``mongod``.
+
 .. _server-status-readConcernCounters:
 
 readConcernCounters

source/release-notes/7.0.txt

@@ -364,6 +364,13 @@ output:
 Plan Cache Metrics
   - :serverstatus:`planCache`
 
+queryAnalyzer Metrics
+  - :serverstatus:`queryAnalyzers.activeCollections` 
+  - :serverstatus:`queryAnalyzers.totalCollections`
+  - :serverstatus:`queryAnalyzers.totalSampledReadsCount`
+  - :serverstatus:`queryAnalyzers.totalSampledWritesCount`
+  - :serverstatus:`queryAnalyzers.totalSampledReadsBytes`
+  - :serverstatus:`queryAnalyzers.totalSampledWritesBytes`
 
 .. _7.0-rapid-release-changes: