SERVER-5784 indexCounters are no longer sampled

Author: Sam Kleinman

source/reference/server-status.txt

@@ -285,7 +285,7 @@ globalLock
 
 .. status:: globalLock.ratio
 
-   .. versionchanged:: 2.2 
+   .. versionchanged:: 2.2
       :status:`globalLock.ratio` was removed. See :status:`locks`.
 
    The value of :status:`gobalLock.ratio` displays the relationship between
@@ -478,18 +478,20 @@ indexCounters
 
 .. status:: indexCounters
 
-   The :status:`indexCounters` data structure contains information about the
-   state and use of the indexes in MongoDB.
+   .. versionchanged:: 2.2
+      Previously, data in the :status:`indexCounters` document
+      reported sampled data, and were only useful in relative
+      comparison to each other, because they could not reflect
+      absolute index use. In 2.2 and later, these data reflect actual
+      index use.
 
-   MongoDB reports *sampled* values for all fields in the
-   :status:`indexCounters` sub-document. As a result, these values are
-   useful in relative comparison to each other, but do not reflect
-   absolute index use.
+   The :status:`indexCounters` data structure reports information
+   regarding the state and use of indexes in MongoDB.
 
 .. status:: indexCounters.btree
 
-   The :status:`indexCounters.btree` data structure contains data regarding
-   MongoDB's :term:`btree` indexes.
+   The :status:`indexCounters.btree` data structure contains data
+   regarding MongoDB's :term:`btree` indexes.
 
 .. status:: indexCounters.btree.accesses
 
@@ -523,8 +525,8 @@ indexCounters
 
 .. status:: indexCounters.btree.resets
 
-   The :status:`index Counter.btree.resets` value reflects the number of
-   times that the index counters have been reset since the database
+   The :status:`index Counter.btree.resets` value reflects the number
+   of times that the index counters have been reset since the database
    last restarted. Typically this value is ``0``, but use this value
    to provide context for the data specified by other
    :status:`indexCounters` values.