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Sharding Commands

Name Description
flushRouterConfig Forces an update to the cluster metadata cached by a mongos.
addShard Adds a shard to a sharded cluster.
cleanupOrphaned Removes orphaned data with shard key values outside of the ranges of the chunks owned by a shard.
checkShardingIndex Internal command that validates index on shard key.
enableSharding Enables sharding on a specific database.
listShards Returns a list of configured shards.
removeShard Starts the process of removing a shard from a sharded cluster.
getShardMap Internal command that reports on the state of a sharded cluster.
getShardVersion Internal command that returns the config server version.
mergeChunks Provides the ability to combine chunks on a single shard.
setShardVersion Internal command to sets the config server version.
shardCollection Enables the sharding functionality for a collection, allowing the collection to be sharded.
shardingState Reports whether the mongod is a member of a sharded cluster.
unsetSharding Internal command that affects connections between instances in a MongoDB deployment.
split Creates a new chunk.
splitChunk Internal command to split chunk. Instead use the methods sh.splitFind() and sh.splitAt().
splitVector Internal command that determines split points.
medianKey Deprecated internal command. See splitVector.
moveChunk Internal command that migrates chunks between shards.
movePrimary Reassigns the primary shard when removing a shard from a sharded cluster.
isdbgrid Verifies that a process is a mongos.