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分片参考
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Sharding Methods in the mongo Shell mongo Shell中的分片方法

名称
描述
sh.addShard()
Adds a shard to a sharded cluster. 将分片添加到分片集群中。
sh.addShardTag()
In MongoDB 3.4, this method aliases to sh.addShardToZone(). 在MongoDB 3.4中,此方法别名为sh.addShardToZone()。
sh.addShardToZone()
Associates a shard to a zone. Supports configuring zones in sharded clusters. 将分片与区域关联。支持在分片群集中配置区域。
sh.addTagRange()
In MongoDB 3.4, this method aliases to sh.updateZoneKeyRange(). 在MongoDB 3.4中,此方法别名为sh.updateZoneKeyRange()。
sh.disableBalancing()
Disable balancing on a single collection in a sharded database. Does not affect balancing of other collections in a sharded cluster. 在分片数据库中的单个集合上禁用平衡。不会影响分片集群中其他集合的平衡。
sh.enableBalancing()
Activates the sharded collection balancer process if previously disabled using sh.disableBalancing(). 如果以前使用sh.disableBalancing()禁用了分片集合平衡器进程,则将其激活。
sh.disableAutoSplit()
Disables auto-splitting for the sharded cluster. 禁用分片集群的自动拆分。
sh.enableAutoSplit()
Enables auto-splitting for the sharded cluster. 启用分片集群的自动拆分。
sh.enableSharding()
Enables sharding on a specific database. 在特定数据库上启用分片。
sh.getBalancerHost()
Deprecated since MongoDB 3.4 自MongoDB 3.4起不推荐使用。
sh.getBalancerState()
Returns a boolean to report if the balancer is currently enabled. 返回一个布尔值以报告当前是否启用了平衡器。
sh.removeTagRange()
In MongoDB 3.4, this method aliases to sh.removeRangeFromZone(). 在MongoDB 3.4中,此方法别名为sh.removeRangeFromZone()
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.help()
Returns help text for the sh methods. 返回sh的帮助文档。
sh.isBalancerRunning()
Returns a boolean to report if the balancer process is currently migrating chunks. 返回一个布尔值以报告平衡器进程当前是否正在迁移块。
sh.moveChunk()
Migrates a chunk in a sharded cluster. 迁移分片集群中的块。
sh.removeShardTag()
In MongoDB 3.4, this method aliases to sh.removeShardFromZone(). 在MongoDB 3.4中,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.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.shardCollection()
Enables sharding for a collection. 为集合启用分片。

Sharding Database Commands 分片数据库命令

The following database commands support sharded clusters.
以下数据库命令支持分片群集。
名称
描述
addShard
Adds a shard to a sharded cluster. 添加一个分片到分片集群中。
addShardToZone
Associates a shard with a zone. Supports configuring zones in sharded clusters. 将分片与区域关联。支持在分片群集中配置区域。
balancerStart
Starts a balancer thread. 启动平衡器线程。
balancerStatus
Returns information on the balancer status. 返回有关平衡器状态的信息。
balancerStop
Stops the balancer thread. 停止平衡器线程。
checkShardingIndex
Internal command that validates index on shard key. 验证分片键索引的内部命令。
clearJumboFlag
Clears the jumbo flag for a chunk. 清除块的巨型标志。
cleanupOrphaned
Removes orphaned data with shard key values outside of the ranges of the chunks owned by a shard. 删除分片键值超出分片所拥有的块范围之外的孤立数据。
enableSharding
Enables sharding on a specific database. 在特定数据库上启用分片。
flushRouterConfig
Forces a mongod/mongos instance to update its cached routing metadata. 强制mongod / mongos实例更新其缓存的路由元数据。
getShardMap
Internal command that reports on the state of a sharded cluster. 报告分片群集状态的内部命令。
getShardVersion
Internal command that returns the config server version. 返回配置服务器版本的内部命令。
isdbgrid
Verifies that a process is a mongos. 验证一个进程是mongos。
listShards
Returns a list of configured shards.返回已配置分片的列表。
medianKey
Deprecated internal command. See splitVector. 不推荐使用的内部命令。请参见splitVector
moveChunk
Internal command that migrates chunks between shards. 在分片之间迁移块的内部命令。
movePrimary
Reassigns the primary shard when removing a shard from a sharded cluster. 从分片群集中删除分片时,重新分配主分片。
mergeChunks
Provides the ability to combine chunks on a single shard. 提供在单个分片上合并块的功能。
removeShard
Starts the process of removing a shard from a sharded cluster. 开始从分片群集中删除分片的过程。
removeShardFromZone
Removes the association between a shard and a zone. Supports configuring zones in sharded clusters. 删除分片和区域之间的关联。支持在分片群集中配置区域。

Reference Documentation 参考文档

Requirement for deploying a sharded cluster
Common strategies for troubleshooting sharded cluster deployments.
Complete documentation of the content of the local database that MongoDB uses to store sharded cluster metadata.
​ 部署分片集群的要求
​ 解决分片群集部署的常见策略。
​ MongoDB用于存储分片群集元数据的本地数据库内容的完整文档。
译者:张建威