lockInfo
定义
兼容性
此命令在以下环境中的部署中可用
MongoDB Atlas：云中MongoDB部署的全面管理服务
重要
此命令不支持在M0、M2和M5集群中使用。有关更多信息，请参阅不支持命令。
MongoDB企业版：基于订阅、自行管理的MongoDB版本
MongoDB社区版：源代码开放、免费使用且自行管理的MongoDB版本
语法
该命令具有以下语法
db.adminCommand( { lockInfo: 1 } )
输出示例
以下是从lockInfo:
{ "lockInfo" : [ { "resourceId" : "{2305843009213693953: ParallelBatchWriterMode, 1}", "granted" : [ { "mode" : "IS", "convertMode" : "NONE", "enqueueAtFront" : false, "compatibleFirst" : false, "debugInfo" : "{ findandmodify: \"hugeindex\", query: { _id: 585.0 }, update: { $pop: { a: 1.0 } }, upsert: false, new: false, lsid: { id: UUID(\"dc611138-04c6-49b1-a7ac-161040dd9d65\") }, $db: \"test\" }", "clientInfo" : { "desc" : "conn3", "connectionId" : 3, "client" : "127.0.0.1:55165", "opid" : 28770 } } ], "pending" : [ ] }, { "resourceId" : "{6917529027641081857: Global, 1}", "granted" : [ { "mode" : "IX", "convertMode" : "NONE", "enqueueAtFront" : false, "compatibleFirst" : false, "debugInfo" : "{ findandmodify: \"hugeindex\", query: { _id: 585.0 }, update: { $pop: { a: 1.0 } }, upsert: false, new: false, lsid: { id: UUID(\"dc611138-04c6-49b1-a7ac-161040dd9d65\") }, $db: \"test\" }", "clientInfo" : { "desc" : "conn3", "connectionId" : 3, "client" : "127.0.0.1:55165", "opid" : 28770 } }, { "mode" : "IX", "convertMode" : "NONE", "enqueueAtFront" : false, "compatibleFirst" : false, "debugInfo" : "index build: 29d48366-63ad-41e2-a689-69255a89c094", "clientInfo" : { "desc" : "IndexBuildsCoordinatorMongod-0", "opid" : 27437 } } ], "pending" : [ ] }, { "resourceId" : "{4611686018427387905: ReplicationStateTransition, 1}", "granted" : [ { "mode" : "IX", "convertMode" : "NONE", "enqueueAtFront" : false, "compatibleFirst" : false, "debugInfo" : "{ findandmodify: \"hugeindex\", query: { _id: 585.0 }, update: { $pop: { a: 1.0 } }, upsert: false, new: false, lsid: { id: UUID(\"dc611138-04c6-49b1-a7ac-161040dd9d65\") }, $db: \"test\" }", "clientInfo" : { "desc" : "conn3", "connectionId" : 3, "client" : "127.0.0.1:55165", "opid" : 28770 } }, { "mode" : "IX", "convertMode" : "NONE", "enqueueAtFront" : false, "compatibleFirst" : false, "debugInfo" : "index build: 29d48366-63ad-41e2-a689-69255a89c094", "clientInfo" : { "desc" : "IndexBuildsCoordinatorMongod-0", "opid" : 27437 } } ], "pending" : [ ] }, { "resourceId" : "{10123292395995783581: Database, 899920359141007773, test}", "granted" : [ { "mode" : "IX", "convertMode" : "NONE", "enqueueAtFront" : false, "compatibleFirst" : false, "debugInfo" : "{ findandmodify: \"hugeindex\", query: { _id: 585.0 }, update: { $pop: { a: 1.0 } }, upsert: false, new: false, lsid: { id: UUID(\"dc611138-04c6-49b1-a7ac-161040dd9d65\") }, $db: \"test\" }", "clientInfo" : { "desc" : "conn3", "connectionId" : 3, "client" : "127.0.0.1:55165", "opid" : 28770 } }, { "mode" : "IX", "convertMode" : "NONE", "enqueueAtFront" : false, "compatibleFirst" : false, "debugInfo" : "index build: 29d48366-63ad-41e2-a689-69255a89c094", "clientInfo" : { "desc" : "IndexBuildsCoordinatorMongod-0", "opid" : 27437 } } ], "pending" : [ ] }, { "resourceId" : "{12576221391967629173: Collection, 1047006345899159413, test.hugeindex}", "granted" : [ { "mode" : "IX", "convertMode" : "NONE", "enqueueAtFront" : false, "compatibleFirst" : false, "debugInfo" : "{ findandmodify: \"hugeindex\", query: { _id: 585.0 }, update: { $pop: { a: 1.0 } }, upsert: false, new: false, lsid: { id: UUID(\"dc611138-04c6-49b1-a7ac-161040dd9d65\") }, $db: \"test\" }", "clientInfo" : { "desc" : "conn3", "connectionId" : 3, "client" : "127.0.0.1:55165", "opid" : 28770 } }, { "mode" : "IX", "convertMode" : "NONE", "enqueueAtFront" : false, "compatibleFirst" : false, "debugInfo" : "index build: 29d48366-63ad-41e2-a689-69255a89c094", "clientInfo" : { "desc" : "IndexBuildsCoordinatorMongod-0", "opid" : 27437 } } ], "pending" : [ ] } ], "ok" : 1 }
输出字段
lockInfo.granted文档数组。每个文档提供了关于当前授予资源的锁的信息。
lockInfo.pending文档数组。每个文档提供了关于当前待处理的资源的锁的信息。
锁信息
字段 | 描述 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
mode | 指定锁模式
| ||||||||||
convertMode | 指定转换的新锁模式。 | ||||||||||
enqueueAtFront | 一个布尔值，指示在发生冲突时是否将锁放在队列的前面或后面。 | ||||||||||
compatibleFirst | 一个布尔值，指示根据与已授予锁的兼容性授予锁请求，还是使用先进先出（FIFO）顺序。 | ||||||||||
debugInfo | 有关发出锁请求的操作的信息。 | ||||||||||
clientInfo | 包含客户端信息的文档。 |