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May 21, 2012
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Update source/reference/server-status.txt #29

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56 changes: 56 additions & 0 deletions source/reference/server-status.txt
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Expand Up @@ -552,6 +552,62 @@ opcounters
of commands issued to the database since the :program:`mongod`
instance last started.

opcountersRepl
-----------

.. status:: opcountersRepl

The :status:`opcountersRepl` data structure, similar to the
:status:`opcounters` data structure, provides an overview of
database replication operations by type and makes it possible to
analyze the load on the replica in more granular manner. These
values only appear when the current host has replication enabled.

These values will differ from the primary :status:`opcounters` because
of how operations are serialized during replication. See
:doc:`/core/replication` for more information on replication.

These numbers will grow over time and in response to database
use. Analyze these values over time to track database utilization.

.. status:: opcountersRepl.insert

:status:`opcountersRepl.insert` provides a counter of the total number
of replicated insert operations since the :program:`mongod` instance
last started.

.. status:: opcountersRepl.query

:status:`opcountersRepl.query` provides a counter of the total number
of replicated queries since the :program:`mongod` instance last
started.

.. status:: opcountersRepl.update

:status:`opcountersRepl.update` provides a counter of the total number
of replicated update operations since the :program:`mongod` instance
last started.

.. status:: opcountersRepl.delete

:status:`opcountersRepl.delete` provides a counter of the total number
of replicated delete operations since the :program:`mongod` instance
last started.

.. status:: opcountersRepl.getmore

:status:`opcountersRepl.getmore` provides a counter of the total number
of "getmore" operations since the :program:`mongod` instance last
started. This counter can be high even if the query count is low.
Secondary nodes send ``getMore`` operations as part of the replication
process.

.. status:: opcountersRepl.command

:status:`opcountersRepl.command` provides a counter of the total number
of replicated commands issued to the database since the
:program:`mongod` instance last started.

asserts
-------

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