@@ -4767,27 +4767,27 @@ shardingStatistics
47674767
47684768.. serverstatus:: shardingStatistics.countDonorMoveChunkStarted
47694769
4770- The total number of times that the :dbcommand:`moveChunk` command
4771- or :dbcommand:`moveRange` have started on the shard, of which this
4772- node is a member, as part of a :ref:`range migration process
4773- <range-migration-procedure>`. This increasing number does not
4770+ The total number of times that MongoDB starts the
4771+ :dbcommand:`moveChunk` command or :dbcommand:`moveRange` command on
4772+ the primary node of the shard as part of the :ref:`range migration
4773+ procedure <range-migration-procedure>`. This increasing number does not
47744774 consider whether the chunk migrations succeed or not.
47754775
47764776 *Only present when run on a shard.*
47774777
47784778.. serverstatus:: shardingStatistics.countDonorMoveChunkCommitted
47794779
4780- Total number of chunk migrations committed on the shard, of which
4781- the current node is a member .
4780+ The total number of chunk migrations that MongoDB commits on the
4781+ primary node of the shard .
47824782
47834783 .. include:: /includes/chunk-migrations.rst
47844784
47854785 .. include:: /includes/chunk-migrations-version-list.rst
47864786
47874787.. serverstatus:: shardingStatistics.countDonorMoveChunkAborted
47884788
4789- Total number of chunk migrations aborted on the shard, of which the
4790- current node is a member.
4789+ The total number of chunk migrations that MongoDB aborts on the
4790+ primary node of the shard.
47914791
47924792 .. include:: /includes/chunk-migrations.rst
47934793
@@ -4807,32 +4807,30 @@ shardingStatistics
48074807
48084808.. serverstatus:: shardingStatistics.totalDonorChunkCloneTimeMillis
48094809
4810- The cumulative time, in milliseconds, taken by the :ref:`clone phase
4811- of the range migrations <range-migration-procedure>` from this
4812- shard, of which this node is a member. Specifically, for each
4813- migration from this shard, the tracked time starts with the
4814- :dbcommand:`moveRange` and :dbcommand:`moveChunk` commands and ends
4815- before the destination shard enters a ``catchup`` phase to apply
4816- changes that occurred during the :ref:`range migrations
4817- <range-migration-procedure>`.
4810+ The cumulative time, in milliseconds, that the :ref:`clone phase of
4811+ the range migration procedure <range-migration-procedure>` takes on
4812+ the primary node of the shard. Specifically, for each migration on
4813+ this shard, the tracked time starts with the :dbcommand:`moveRange`
4814+ and :dbcommand:`moveChunk` commands and ends before the destination
4815+ shard enters a ``catchup`` phase to apply changes that occurred
4816+ during the :ref:`range migration procedure <range-migration-procedure>`.
48184817
48194818 *Only present when run on a shard.*
48204819
48214820.. serverstatus:: shardingStatistics.totalCriticalSectionCommitTimeMillis
48224821
4823- The cumulative time, in milliseconds, taken by the :ref:`update
4824- metadata phase of the range migrations <range-migration-procedure>`
4825- from this shard, of which this node is a member . During the update
4826- metadata phase, all operations on the collection are blocked .
4822+ The cumulative time, in milliseconds, that the :ref:`update metadata
4823+ phase of the range migrations procedure <range-migration-procedure>`
4824+ takes on the primary node of the shard . During the update metadata
4825+ phase, MongoDB blocks all operations on the collection.
48274826
48284827 *Only present when run on a shard.*
48294828
48304829.. serverstatus:: shardingStatistics.totalCriticalSectionTimeMillis
48314830
4832- The cumulative time, in milliseconds, taken by the :ref:`catch-up
4833- phase and the update metadata phase of the range migrations
4834- <range-migration-procedure>` from this shard, of which this node is
4835- a member.
4831+ The cumulative time, in milliseconds, that the :ref:`catch-up
4832+ phase and the update metadata phase of the range migration procedure
4833+ <range-migration-procedure>` takes on the primary node of the shard.
48364834
48374835 To calculate the duration of the catch-up phase, subtract
48384836 :serverstatus:`~shardingStatistics.totalCriticalSectionCommitTimeMillis` from
@@ -4846,20 +4844,18 @@ shardingStatistics
48464844
48474845.. serverstatus:: shardingStatistics.countDocsClonedOnRecipient
48484846
4849- Cumulative, always-increasing count of documents that have been
4850- cloned on this member where it acted as the primary of the recipient
4851- shard.
4847+ The cumulative, always-increasing count of documents that MongoDB
4848+ clones on the primary node of the recipient shard.
48524849
48534850 *Only present when run on a shard.*
48544851
48554852 .. versionadded:: 4.2
48564853
48574854.. serverstatus:: shardingStatistics.countBytesClonedOnRecipient
48584855
4859- Cumulative number of bytes cloned on the current member node during a
4860- :ref:`range migration procedure <range-migration-procedure>`, where
4861- the current member node acted as the primary node for the recipient
4862- shard.
4856+ The cumulative number of bytes that MongoDB clones on the primary
4857+ node of the recipient shard during the :ref:`range migration procedure
4858+ <range-migration-procedure>`.
48634859
48644860 .. include:: /includes/chunk-migrations-data-copy.rst
48654861
@@ -4869,10 +4865,9 @@ shardingStatistics
48694865
48704866.. serverstatus:: shardingStatistics.countDocsClonedOnCatchUpOnRecipient
48714867
4872- Cumulative number of documents cloned on the current member node
4873- during the catch-up phase of a :ref:`range migration procedure
4874- <range-migration-procedure>`, where the current member node acted as
4875- the primary node for the recipient shard.
4868+ The cumulative number of documents that MongoDB clones on the primary
4869+ node of the recipient shard during the catch-up phase of the
4870+ :ref:`range migration procedure <range-migration-procedure>`.
48764871
48774872 .. include:: /includes/chunk-migrations-data-copy.rst
48784873
@@ -4882,10 +4877,9 @@ shardingStatistics
48824877
48834878.. serverstatus:: shardingStatistics.countBytesClonedOnCatchUpOnRecipient
48844879
4885- Cumulative number of bytes cloned on the current member node during
4886- the catch-up phase of a :ref:`range migration procedure
4887- <range-migration-procedure>`, where the current member node acted as
4888- the primary node for the recipient shard.
4880+ The cumulative number of bytes that MongoDB clones on the primary
4881+ node of the recipient shard during the catch-up phase of the
4882+ :ref:`range migration procedure <range-migration-procedure>`.
48894883
48904884 .. include:: /includes/chunk-migrations-data-copy.rst
48914885
@@ -4895,9 +4889,8 @@ shardingStatistics
48954889
48964890.. serverstatus:: shardingStatistics.countDocsClonedOnDonor
48974891
4898- Cumulative, always-increasing count of documents that haves been
4899- cloned on this member where it acted as the primary of the donor
4900- shard.
4892+ The cumulative, always-increasing count of documents that MongoDB
4893+ clones on the primary node of the donor shard.
49014894
49024895 *Only present when run on a shard.*
49034896
@@ -4915,9 +4908,9 @@ shardingStatistics
49154908
49164909.. serverstatus:: shardingStatistics.countDocsDeletedByRangeDeleter
49174910
4918- Cumulative , always-increasing count of documents that have been
4919- deleted on this member during chunk migration where the member acted
4920- as the primary of the donor shard.
4911+ The cumulative , always-increasing count of documents that MongoDB
4912+ deletes on the primary node of the donor shard during chunk
4913+ migration.
49214914
49224915 *Only present when run on a shard.*
49234916
@@ -4927,9 +4920,9 @@ shardingStatistics
49274920
49284921.. serverstatus:: shardingStatistics.countDonorMoveChunkLockTimeout
49294922
4930- Cumulative , always-increasing count of chunk migrations that were
4931- aborted due to lock acquisition timeouts, where the member acted as
4932- the primary of the donor shard .
4923+ The cumulative , always-increasing count of chunk migrations that MongoDB
4924+ aborts on the primary node of the donor shard due to lock acquisition
4925+ timeouts .
49334926
49344927 *Only present when run on a shard.*
49354928
@@ -5006,7 +4999,7 @@ shardingStatistics
50064999
50075000 The current total of the queued chunk range deletion tasks that are
50085001 ready to run or are running as part of the :ref:`range migration
5009- process <range-migration-procedure>`.
5002+ procedure <range-migration-procedure>`.
50105003
50115004 Inspect the documents in the :data:`config.rangeDeletions` collection
50125005 for information about the chunk ranges pending deletion from a shard
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