DOCS-15553 add queryFramework info (#1866)

* DOCS-15553 add queryFramework descriptions

* cut out detailed sub-fields

* add queryFramework to system.profile sample

* add description in system.profile

* add slow log examples

* add queryFramework to slow query run on views

* clarify subfields, clean up log examples, alphabetize values

* match style guide for references

* fix broken ref link

* minor changes

* fix wording in examples reference

* fix wording in examples reference... again

* small edits to subfield descriptions

* final copy edits + add ref tag to slow oplog example

* final final copy edits

* [nit] monospacing aggregate and find

* edit query engine text

* review edits + start glossary entry for queryFramework

* insert query framework definition (unfinished)

* link query framework glossary entry to other pages

* fix typo in server status def

* change out doc link for ref

* nit edit 'query execution engine'

* drop 'query' where needed

Author: ajhuh-mdb

source/reference/command/serverStatus.txt

@@ -2026,6 +2026,20 @@ metrics
    A histogram measuring the number of plans in the candidate set during
    an invocation of the |sbe-short| multiplanner.
 
+.. serverstatus:: query.queryFramework.aggregate
+
+   A document that reports on the number of aggregation operations run on each 
+   :term:`query framework`. The subfields in ``query.queryFramework.aggregate``
+   indicate the number of times each framework was used to perform an 
+   aggregation operation.
+
+.. serverstatus:: query.queryFramework.find
+
+   A document that reports on the number of find operations run on each 
+   :term:`query framework`. The subfields in ``query.queryFramework.find`` 
+   indicate the number of times each framework was used to perform a find 
+   operation.
+
 .. serverstatus:: metrics.queryExecutor
 
    A document that reports data from the query execution system.

source/reference/database-profiler.txt

@@ -81,6 +81,7 @@ operations on a standalone:
                   "nreturned" : 101,
                   "queryHash" : "811451DD",
                   "planCacheKey" : "759981BA",
+                  "queryFramework" : "classic",
                   "locks" : {
                      "Global" : {
                         "acquireCount" : {
@@ -469,6 +470,10 @@ operation.
 
    .. versionadded:: 4.2
 
+.. data:: system.profile.queryFramework
+
+   The :term:`query framework` used to process an operation.
+
 .. data:: system.profile.locks
 
    The :data:`system.profile.locks` provides information for various

source/reference/glossary.txt

@@ -853,6 +853,10 @@ Glossary
       :method:`db.collection.findOne()` methods. See
       :ref:`read-operations-queries`.
 
+   query framework
+      A combination of the :term:`query optimizer` and query execution engine 
+      used to process an operation.  
+
    query optimizer
       A process that generates query plans. For each query, the
       optimizer generates a plan that matches the query to the index

source/reference/log-messages.txt

@@ -1010,17 +1010,8 @@ Starting in MongoDB 5.0, :ref:`slow operation
 <database-profiling-specify-slowms-threshold>` log messages include a 
 ``remote`` field specifying client IP address.
 
-The following example output includes information about
-a slow :doc:`aggregation </aggregation>` operation:
-
-.. code-block:: javascript
-   :copyable: false
-
-   {"t":{"$date":"2020-05-20T20:10:08.731+00:00"},"s":"I",  "c":"COMMAND",  "id":51803,   "ctx":"conn281","msg":"Slow query","attr":{"type":"command","ns":"stocks.trades","appName":"MongoDB Shell","command":{"aggregate":"trades","pipeline":[{"$project":{"ticker":1.0,"price":1.0,"priceGTE110":{"$gte":["$price",110.0]},"_id":0.0}},{"$sort":{"price":-1.0}}],"allowDiskUse":true,"cursor":{},"lsid":{"id":{"$uuid":"fa658f9e-9cd6-42d4-b1c8-c9160fabf2a2"}},"$clusterTime":{"clusterTime":{"$timestamp":{"t":1590005405,"i":1}},"signature":{"hash":{"$binary":{"base64":"AAAAAAAAAAAAAAAAAAAAAAAAAAA=","subType":"0"}},"keyId":0}},"$db":"test"},"planSummary":"COLLSCAN","cursorid":1912190691485054730,"keysExamined":0,"docsExamined":1000001,"hasSortStage":true,"usedDisk":true,"numYields":1002,"nreturned":101,"reslen":17738,"locks":{"ReplicationStateTransition":{"acquireCount":{"w":1119}},"Global":{"acquireCount":{"r":1119}},"Database":{"acquireCount":{"r":1119}},"Collection":{"acquireCount":{"r":1119}},"Mutex":{"acquireCount":{"r":117}}},"storage":{"data":{"bytesRead":232899899,"timeReadingMicros":186017},"timeWaitingMicros":{"cache":849}},"remote": "192.168.14.15:37666","protocol":"op_msg","durationMillis":22427}}
-
-See the :ref:`examples section <log-message-json-examples>` for a
-:ref:`pretty-printed <log-message-pretty-printing>` version of this log
-entry.
+To see an example of a slow :ref:`aggregation <aggregation-pipeline>` operation 
+log entry, see :ref:`log-message-json-examples-slow-op`.
 
 .. _log-messages-remoteOpWaitMillis:
 
@@ -1338,6 +1329,8 @@ This example shows a client connection that includes
      }
    }
 
+.. _log-message-json-examples-slow-op:
+
 Slow Operation
 ~~~~~~~~~~~~~~
 
@@ -1416,6 +1409,7 @@ This example shows a :ref:`slow operation message
        "usedDisk": true,
        "numYields": 1002,
        "nreturned": 101,
+       "queryFramework": "classic"
        "reslen": 17738,
        "locks": {
          "ReplicationStateTransition": {
@@ -1553,6 +1547,7 @@ The following example log message contains a ``resolvedViews`` field for
             "nreturned": 1,
             "queryHash": "3344645B",
             "planCacheKey": "1D3DE690",
+            "queryFramework": "classic"
             "reslen": 134,
             "locks": { "ParallelBatchWriterMode": { "acquireCount": { "r": 1 } },
             "ReplicationStateTransition": { "acquireCount": { "w": 1 } },