listIndexes Returns information about the indexes on the specified collection, including hidden indexes and indexes that are currently being built. Returned index information includes the keys and options used to create the index. You can optionally set the batch size for the first batch of results...
8、分布式集群部署情况 (1) 细致到collection的显示:sh.status() (2)仅显示分片: use config; db.shards.find() { "_id" : "shard0000", "host" : "xxhost:10001" } { "_id" : "shard0001", "host" : "yyhost:10002" } ... (3) use admin db.runCommand({listshards: 1}) 列出所有的s...
To return a list of all indexes on a collection, use thedb.collection.getIndexes()method or a similarmethod for your driver. For example, to view all indexes on thepeoplecollection, run the following command: db.people.getIndexes()
我们通过createCollection来创建一个固定集合,且capped选项设置为true: db.createCollection(“cappedLogCollection”,{capped:true,size:10000}) 还可以指定文档个数,加上max:1000属性: db.createCollection(“cappedLogCollection”,{capped:true,size:10000,max:1000}) 判断集合是否为固定集合: db.cappedLogCollection....
public MongoDBCollectionGetPropertiesResource withId(String id) Set the id property: Name of the Cosmos DB MongoDB collection. Overrides: MongoDBCollectionGetPropertiesResource.withId(String id) Parameters: id withIndexes public MongoDBCollectionGetPropertiesResource withIndexes(List indexe...
collection.createIndex()方法,当使用"local"以外的读取关注级别时。 listCollections和listIndexes命令及其辅助函数。 其他非CRUD和非信息类操作,比如createUser,getParameter,count等以及它们的辅助函数。 提示 同样请参阅: 待处理的DDL操作和事务 事务和操作参考 事务和会话 事务是与某个会话相关联的;即你为一个会话...
see also mongodb\collection::insertmany() mongodb\collection::bulkwrite() insert documents insert command reference in the mongodb manual back insertmany() next listindexes() rate this page on this page definition parameters return values errors/exceptions behavior example see also ...
3)而建索引的操作:获得collection的R锁,卡了40多分钟,最后节点重启后被记录日志, 建索引的过程, 需要获得表的 R 锁, 就会导致一部分普通的 update 卡在获取表的 ix 锁, 并 且将 128 个 ticket 占满,另外一个部分 update 卡在获取 ticket,并且 ticket 是全局的, 当前无 ticket 可用, 对其他表的操作也会...
importorg.springframework.stereotype.Component;@ComponentpublicclassIndexService{@AutowiredprivateMongoOperationsmongoOperations;publicvoidcreateIndexes(){mongoOperations.indexOps(User.class).ensureIndex(newIndex().on("username",Sort.Direction.ASC).unique());}publicvoiddropIndexes(){mongoOperations.indexOps(User...
可以通过如下命令为某一个collection建立indexFilter db.runCommand( { planCacheSetFilter: <collection>, query: <query>, sort: <sort>, projection: <projection>, indexes: [ <index1>, <index2>, ...] } ) db.runCommand( { planCacheSetFilter: "orders", query: { status: "A" }, indexes: ...