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DOCSP-27878 EOL Cleanup for Sharding Tutorials (#2660) (#2953)
* DOCSP-27878 Removes EOL version references from Sharding Tutorials * Cleans troubleshooting sharded clusters * Removes EOL references * Removes EOL references * Removes Shard Standalone from build * Removes EOL references * Fixes per Joe * Fixes per Joe * Fixes per Rachita and Ratika
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source/administration/sharded-cluster-administration.txt

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/tutorial/backup-sharded-cluster-metadata
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/tutorial/convert-sharded-cluster-to-replica-set
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/tutorial/convert-replica-set-to-replicated-shard-cluster
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/tutorial/convert-shard-standalone-to-shard-replica-set
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:doc:`Config Server Administration </administration/sharded-cluster-config-servers>`
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This section contains articles and tutorials related to sharded
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Convert a replica set to a sharded cluster in which each shard is
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its own replica set.
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:doc:`/tutorial/convert-shard-standalone-to-shard-replica-set`
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Convert a shard standalone instance to a shard replica set.
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Starting in MongoDB 3.2, config servers for sharded clusters can be
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deployed as a :doc:`replica set </replication>` (CSRS) instead of three
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mirrored config servers (SCCC). Using a replica set for the config
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Config servers for sharded clusters can be
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deployed as a :ref:`replica set <replication>` (CSRS).
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Using a replica set for the config
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servers improves consistency across the config servers, since MongoDB
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can take advantage of the standard replica set read and write protocols
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for the config data. In addition, using a replica set for config
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servers allows a sharded cluster to have more than 3 config servers
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since a replica set can have up to 50 members. To deploy config servers
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as a replica set, the config servers must run the :doc:`WiredTiger
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storage engine </core/wiredtiger>`.
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In version 3.4, MongoDB :ref:`removes support for SCCC config servers
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<3.4-compat-remove-sccc>`.
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as a replica set, the config servers must run the :ref:`storage-wiredtiger`.
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source/release-notes/3.6-compatibility.txt

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cluster to version 3.6, the shard servers must be running as a replica
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set.
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To convert an existing shard standalone instance to a shard replica
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set, see :doc:`/tutorial/convert-shard-standalone-to-shard-replica-set`.
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HTTP Interface and REST API
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---------------------------

source/release-notes/3.6-upgrade-sharded-cluster.txt

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server role must be replica set members.
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To upgrade your sharded cluster to version 3.6, the shard servers must
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be running as a replica set. To convert an existing shard standalone
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instance to a shard replica set, see
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:doc:`/tutorial/convert-shard-standalone-to-shard-replica-set`.
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be running as a replica set.
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Drivers
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~~~~~~~

source/release-notes/3.6.txt

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cluster to version 3.6, the shard servers must be running as a
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replica set.
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To convert an existing shard standalone instance to a shard replica
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set, see :doc:`/tutorial/convert-shard-standalone-to-shard-replica-set`.
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- Starting in 3.6, all members of a shard replica set, not just the
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primary, maintain the metadata regarding chunk metadata. This
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prevents reads from the secondaries from returning :term:`orphaned

source/tutorial/backup-sharded-cluster-with-database-dumps.txt

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.. include:: /includes/extracts/sharded-clusters-backup-restore-mongodump-mongorestore-restriction.rst
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For MongoDB 4.0 and earlier deployments, refer to the corresponding
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versions of the manual. For example:
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- :v4.0:`https://www.mongodb.com/docs/v4.0 </tutorial/backup-sharded-cluster-with-database-dumps>`
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- :v3.6:`https://www.mongodb.com/docs/v3.6 </tutorial/backup-sharded-cluster-with-database-dumps>`
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- :v3.4:`https://www.mongodb.com/docs/v3.4 </tutorial/backup-sharded-cluster-with-database-dumps>`

source/tutorial/build-indexes-on-sharded-clusters.txt

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- Comment out the :setting:`sharding.clusterRole` option.
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- Set parameter :parameter:`skipShardingConfigurationChecks`
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(also available for MongoDB 3.6.3+, 3.4.11+, 3.2.19+) to
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``true`` in the :setting:`setParameter` section.
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to ``true`` in the :setting:`setParameter` section.
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- Set parameter ``disableLogicalSessionCacheRefresh`` to
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``true`` in the :setting:`setParameter` section.
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--configsvr>` if a config server member.
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- Set parameter
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:parameter:`skipShardingConfigurationChecks` (also
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available for MongoDB 3.6.3+, 3.4.11+, 3.2.19+) to
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``true`` in the :option:`--setParameter <mongod
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:parameter:`skipShardingConfigurationChecks`
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to ``true`` in the :option:`--setParameter <mongod
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--setParameter>` option.
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- Set parameter ``disableLogicalSessionCacheRefresh``

source/tutorial/change-sharded-cluster-wiredtiger.txt

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PSA 3-member Architecture
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~~~~~~~~~~~~~~~~~~~~~~~~~
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Starting in MongoDB 3.6, :readconcern:`"majority"` read concern,
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available for WiredTiger, is enabled by default. However, for MongoDB
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4.0.3+, if you have a three-member shard replica set with a
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The :readconcern:`"majority"` read concern,
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available for WiredTiger, is enabled by default. However,
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if you have a three-member shard replica set with a
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primary-secondary-arbiter (PSA) architecture, you can disable
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:readconcern:`"majority"` read concern for that shard replica set.
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Disabling :readconcern:`"majority"` for a three member PSA architecture
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avoids possible cache-pressure build up.
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The procedure below disables :readconcern:`"majority"` read concern for
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MongoDB 4.0.3 PSA architecture by including
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:option:`--enableMajorityReadConcern false <mongod
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--enableMajorityReadConcern>`. If you are running a MongoDB 4.0.1 or
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4.0.2 PSA architecture, first upgrade to the latest 4.0 version in
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order to disable this read concern.
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.. note::
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.. include:: /includes/extracts/changestream-disable-rc-majority.rst

source/tutorial/convert-shard-standalone-to-shard-replica-set.txt

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source/tutorial/convert-standalone-to-replica-set.txt

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standalone instances for testing and development, but always use
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replica sets in production.
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The procedure is specific to instances that are not part of a sharded
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cluster. To convert a shard standalone instance to a shard replica set,
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see :doc:`/tutorial/convert-shard-standalone-to-shard-replica-set`
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instead.
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To deploy a replica set without using a pre-existing
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:binary:`~bin.mongod` instance, see :doc:`/tutorial/deploy-replica-set`
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instead.
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For more information on adding members to a replica set, see
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:doc:`/tutorial/expand-replica-set`.
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.. seealso::
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:doc:`/tutorial/convert-shard-standalone-to-shard-replica-set`

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