convertShardKeyToHashed() | Returns the hashed value for the input.返回输入的哈希值。 |
db.checkMetadataConsistency() | Checks the cluster or database for inconsistent sharding metadata.检查群集或数据库是否存在不一致的分片元数据。
New in version 7.0.在版本7.0中新增。
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db.collection.checkMetadataConsistency() | Checks the collection for inconsistent sharding metadata.检查集合中是否存在不一致的分片元数据。
New in version 7.0.在版本7.0中新增。
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sh.abortMoveCollection() | Stops an in-progress moveCollection operation.停止正在进行的moveCollection操作。
New in version 8.0.在版本8.0中新增。
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sh.abortReshardCollection() | Aborts a resharding operation.中止重新分片操作。
New in version 5.0.在版本5.0中新增。
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sh.addShard() | Adds a shard to a sharded cluster.将分片添加到分片集群。 |
sh.addShardTag() | This method aliases to sh.addShardToZone().此方法别名为sh.addShardToZone()。 |
sh.addShardToZone() | Associates a shard to a zone. Supports configuring zones in sharded clusters.将一个分片与一个区域相关联。支持在分片集群中配置区域。 |
sh.addTagRange() | This method aliases to sh.updateZoneKeyRange().此方法别名为sh.updateZoneKeyRange()。 |
sh.balancerCollectionStatus() | Returns information on whether the chunks of a sharded collection are balanced.返回有关分片集合的块是否平衡的信息。 |
sh.checkMetadataConsistency() | Checks the cluster for inconsistent sharding metadata.检查集群中是否存在不一致的分片元数据。
New in version 7.0.在版本7.0中新增。
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sh.commitReshardCollection() | Forces a resharding operation to block writes and complete.强制执行重新分片操作以阻止写入并完成。
New in version 5.0.在版本5.0中新增。
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sh.disableAutoMerger() | Disables automatic chunk merges for a namespace.禁用命名空间的自动块合并。
New in version 7.0.在版本7.0中新增。
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sh.disableAutoSplit() | Disables auto-splitting for the sharded cluster.禁用分片群集的自动拆分。
Starting in MongoDB 6.0.3, automatic chunk splitting is not performed. This is because of balancing policy improvements. Auto-splitting commands still exist, but do not perform an operation.从MongoDB 6.0.3开始，不执行自动块分割。这是因为平衡了政策的改进。自动拆分命令仍然存在，但不执行操作。
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sh.disableBalancing() | Disable balancing on a single collection in a sharded database. Does not affect balancing of other collections in a sharded cluster.禁用分片数据库中单个集合的平衡。不会影响分片集群中其他集合的平衡。 |
sh.enableAutoMerger() | Enables automatic chunk merges for a namespace.启用命名空间的自动块合并。
New in version 7.0.在版本7.0中新增。
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sh.enableAutoSplit() | Enables auto-splitting for the sharded cluster.启用分片群集的自动拆分。
Starting in MongoDB 6.0.3, automatic chunk splitting is not performed. This is because of balancing policy improvements. Auto-splitting commands still exist, but do not perform an operation.从MongoDB 6.0.3开始，不执行自动块分割。这是因为平衡了政策的改进。自动拆分命令仍然存在，但不执行操作。
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sh.enableBalancing() | Activates the sharded collection balancer process if previously disabled using sh.disableBalancing().如果之前使用sh.disableBalancing()禁用了分片集合平衡器进程，则激活该进程。 |
sh.enableSharding() | Creates a database.创建数据库。 |
sh.getBalancerState() | Returns a boolean to report if the balancer is currently enabled.返回一个布尔值，用于报告平衡器当前是否已启用。 |
sh.getShardedDataDistribution() | Returns data distribution information for sharded collections. 返回分片集合的数据分布信息。sh.getShardedDataDistribution() is a shell helper method for the $shardedDataDistribution aggregation pipeline stage.sh.getShardedDataDistribution()是$shardedDataDistribution聚合管道阶段的shell辅助方法。 |
sh.help() | Returns help text for the sh methods.返回sh方法的帮助文本。 |
sh.isBalancerRunning() | Returns a document describing the status of the balancer.返回一个描述平衡器状态的文档。 |
sh.isConfigShardEnabled() | Returns whether a cluster has a config shard. 返回集群是否有配置分片。If it does, sh.isConfigShardEnabled() also returns host and tag information.如果是这样，sh.isConfigShardEnabled()也会返回主机和标签信息。 |
sh.listShards() | Returns an array of documents describing the shards in a sharded cluster.返回描述分片集群中分片的文档数组。 |
sh.moveChunk() | Migrates a chunk in a sharded cluster.迁移分片集群中的块。 |
sh.moveCollection() | Moves a single unsharded collection to a different shard.将单个未分片集合移动到其他分片。 |
sh.moveRange() | Move ranges between shards.在分片之间移动范围。 |
sh.removeRangeFromZone() | Removes an association between a range of shard keys and a zone. Supports configuring zones in sharded clusters.删除一系列分片键和区域之间的关联。支持在分片集群中配置区域。 |
sh.removeShardTag() | This method aliases to sh.removeShardFromZone().此方法别名为sh.removeShardFromZone()。 |
sh.removeShardFromZone() | Removes the association between a shard and a zone. Use to manage zone sharding.删除分片和区域之间的关联。用于管理区域分片。 |
sh.removeTagRange() | This method aliases to sh.removeRangeFromZone().此方法别名为sh.removeRangeFromZone()。 |
sh.reshardCollection() | Initiates a resharding operation to change the shard key for a collection, changing the distribution of your data.启动重新分片操作以更改集合的分片键，从而更改数据的分布。
New in version 5.0.在版本5.0中新增。
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sh.setBalancerState() | Enables or disables the balancer which migrates chunks between shards.启用或禁用在分片之间迁移块的平衡器。 |
sh.shardAndDistributeCollection() | Shards a collection and immediately redistributes the data using the provided shard key.对集合进行分片，并立即使用提供的分片键重新分发数据。
New in version 8.0.在版本8.0中新增。
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sh.shardCollection() | Enables sharding for a collection.为集合启用分片。 |
sh.splitAt() | Divides an existing chunk into two chunks using a specific value of the shard key as the dividing point.使用分片键的特定值作为分割点，将现有块分为两个块。 |
sh.splitFind() | Divides an existing chunk that contains a document matching a query into two approximately equal chunks.将包含与查询匹配的文档的现有块划分为两个大致相等的块。 |
sh.startAutoMerger() | Enables the AutoMerger.启用自动合并。
New in version 7.0.在版本7.0中新增。
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sh.startBalancer() | Enables the balancer and waits for balancing to start.启用平衡器并等待平衡开始。 |
sh.status() | Reports on the status of a sharded cluster, as db.printShardingStatus().报告分片集群的状态，如db.printShardingStatus()。 |
sh.stopAutoMerger() | Disables the AutoMerger.禁用自动合并。
New in version 7.0.在版本7.0中新增。
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sh.stopBalancer() | Disables the balancer and waits for any in progress balancing rounds to complete.禁用平衡器并等待任何正在进行的平衡轮完成。 |
sh.unshardCollection() | Unshards an existing sharded collection and moves the collection data onto a single shard. When you unshard a collection, the collection cannot be partitioned across multiple shards and the shard key is removed.解开现有的分片集合，并将集合数据移动到单个分片上。当您取消对集合的分区时，该集合不能跨多个分片进行分区，并且分片键将被删除。
New in version 8.0.在版本8.0中新增。
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sh.updateZoneKeyRange() | Associates a range of shard keys to a zone. Supports configuring zones in sharded clusters.将一系列分片键与一个区域相关联。支持在分片集群中配置区域。 |
sh.waitForBalancer() | Internal. Waits for the balancer state to change.内部。等待平衡器状态更改。 |
sh.waitForBalancerOff() | Internal. Waits until the balancer stops running.内部。等待平衡器停止运行。 |
sh.waitForPingChange() | Internal. Waits for a change in ping state from one of the mongos in the sharded cluster.内部。等待分片集群中某个mongo的ping状态发生变化。 |