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获取某个配置参数的值：
xxx:PRIMARY> db.runCommand( { getParameter :1, "cursorTimeoutMillis":1 } ) { "cursorTimeoutMillis" : NumberLong(600000), "ok" : 1, "operationTime" : Timestamp(1624848414, 2), "$clusterTime" : { "clusterTime" : Timestamp(1624848414, 2), "signature" : { "hash" : BinData(0,"hXE5+TWIYxU7q3vsja9dvAvMGjA="), "keyId" : NumberLong("6943692323435841255") } } } xxx:PRIMARY>
设置参数：
db.adminCommand( { setParameter: 1, cursorTimeoutMillis: 300000 } )
获取所有配置参数的值：
xxx:PRIMARY> db.runCommand( { getParameter : '*' } ) { "AsyncRequestsSenderUseBaton" : true, "KeysRotationIntervalSec" : 7776000, "ShardingTaskExecutorPoolHostTimeoutMS" : 300000, "ShardingTaskExecutorPoolMaxConnecting" : 2, "ShardingTaskExecutorPoolMaxSize" : -1, "ShardingTaskExecutorPoolMinSize" : 1, "ShardingTaskExecutorPoolRefreshRequirementMS" : 60000, "ShardingTaskExecutorPoolRefreshTimeoutMS" : 20000, "TransactionRecordMinimumLifetimeMinutes" : 30, "adaptiveServiceExecutorIdlePctThreshold" : 60, "adaptiveServiceExecutorMaxQueueLatencyMicros" : 500, "adaptiveServiceExecutorRecursionLimit" : 8, "adaptiveServiceExecutorReservedThreads" : 20, "adaptiveServiceExecutorRunTimeJitterMillis" : 500, "adaptiveServiceExecutorRunTimeMillis" : 5000, "adaptiveServiceExecutorStuckThreadTimeoutMillis" : 250, "allowRolesFromX509Certificates" : true, "allowSecondaryReadsDuringBatchApplication" : true, "auditAuthorizationSuccess" : false, "authSchemaVersion" : 5, "authenticationMechanisms" : [ "MONGODB-X509", "SCRAM-SHA-1", "SCRAM-SHA-256" ], "bgSyncOplogFetcherBatchSize" : 13981010, "clientCursorMonitorFrequencySecs" : 4, "cloudFreeMonitoringEndpointURL" : "https://cloud.mongodb.com/freemonitoring/mongo", "clusterAuthMode" : "keyFile", "collectionClonerBatchSize" : -1, "connPoolMaxConnsPerHost" : 200, "connPoolMaxInUseConnsPerHost" : 2147483647, "connPoolMaxShardedConnsPerHost" : 200, "connPoolMaxShardedInUseConnsPerHost" : 2147483647, "createRollbackDataFiles" : true, "createTimestampSafeUniqueIndex" : false, "cursorTimeoutMillis" : NumberLong(600000), "debugCollectionUUIDs" : false, "diagnosticDataCollectionDirectorySizeMB" : 200, "diagnosticDataCollectionEnabled" : true, "diagnosticDataCollectionFileSizeMB" : 10, "diagnosticDataCollectionPeriodMillis" : 1000, "diagnosticDataCollectionSamplesPerChunk" : 300, "diagnosticDataCollectionSamplesPerInterimUpdate" : 10, "disableJavaScriptJIT" : true, "disableLogicalSessionCacheRefresh" : false, "disableNonSSLConnectionLogging" : false, "disabledSecureAllocatorDomains" : [ ], "enableElectionHandoff" : true, "enableInMemoryTransactions" : false, "enableLocalhostAuthBypass" : true, "enableTestCommands" : false, "failIndexKeyTooLong" : true, "featureCompatibilityVersion" : { "version" : "4.0" }, "forceRollbackViaRefetch" : false, "globalConnPoolIdleTimeoutMinutes" : 2147483647, "heapProfilingEnabled" : false, "heapProfilingSampleIntervalBytes" : NumberLong(262144), "honorSystemUmask" : false, "initialSyncOplogBuffer" : "collection", "initialSyncOplogBufferPeekCacheSize" : 10000, "initialSyncOplogFetcherBatchSize" : 13981010, "internalDocumentSourceCursorBatchSizeBytes" : 4194304, "internalDocumentSourceLookupCacheSizeBytes" : 104857600, "internalGeoNearQuery2DMaxCoveringCells" : 16, "internalGeoPredicateQuery2DMaxCoveringCells" : 16, "internalInsertMaxBatchSize" : 64, "internalLookupStageIntermediateDocumentMaxSizeBytes" : NumberLong(104857600), "internalProhibitShardOperationRetry" : false, "internalQueryAlwaysMergeOnPrimaryShard" : false, "internalQueryCacheEvictionRatio" : 10, "internalQueryCacheFeedbacksStored" : 20, "internalQueryCacheSize" : 5000, "internalQueryEnumerationMaxIntersectPerAnd" : 3, "internalQueryEnumerationMaxOrSolutions" : 10, "internalQueryExecMaxBlockingSortBytes" : 33554432, "internalQueryExecYieldIterations" : 128, "internalQueryExecYieldPeriodMS" : 10, "internalQueryFacetBufferSizeBytes" : 104857600, "internalQueryForceIntersectionPlans" : false, "internalQueryIgnoreUnknownJSONSchemaKeywords" : false, "internalQueryMaxAddToSetBytes" : 104857600, "internalQueryMaxPushBytes" : 104857600, "internalQueryMaxScansToExplode" : 200, "internalQueryPlanEvaluationCollFraction" : 0.3, "internalQueryPlanEvaluationMaxResults" : 101, "internalQueryPlanEvaluationWorks" : 10000, "internalQueryPlanOrChildrenIndependently" : true, "internalQueryPlannerEnableHashIntersection" : false, "internalQueryPlannerEnableIndexIntersection" : true, "internalQueryPlannerGenerateCoveredWholeIndexScans" : false, "internalQueryPlannerMaxIndexedSolutions" : 64, "internalQueryProhibitBlockingMergeOnMongoS" : false, "internalQueryProhibitMergingOnMongoS" : false, "internalQueryS2GeoCoarsestLevel" : 0, "internalQueryS2GeoFinestLevel" : 23, "internalQueryS2GeoMaxCells" : 20, "internalValidateFeaturesAsMaster" : true, "javascriptProtection" : false, "journalCommitInterval" : 100, "jsHeapLimitMB" : 1100, "localLogicalSessionTimeoutMinutes" : 30, "logComponentVerbosity" : { "verbosity" : 0, "accessControl" : { "verbosity" : -1 }, "command" : { "verbosity" : -1 }, "control" : { "verbosity" : -1 }, "executor" : { "verbosity" : -1 }, "geo" : { "verbosity" : -1 }, "index" : { "verbosity" : -1 }, "network" : { "verbosity" : -1, "asio" : { "verbosity" : -1 }, "bridge" : { "verbosity" : -1 }, "connectionPool" : { "verbosity" : -1 } }, "query" : { "verbosity" : -1 }, "replication" : { "verbosity" : -1, "heartbeats" : { "verbosity" : -1 }, "rollback" : { "verbosity" : -1 } }, "sharding" : { "verbosity" : -1, "shardingCatalogRefresh" : { "verbosity" : -1 } }, "storage" : { "verbosity" : -1, "recovery" : { "verbosity" : -1 }, "journal" : { "verbosity" : -1 } }, "write" : { "verbosity" : -1 }, "ftdc" : { "verbosity" : -1 }, "tracking" : { "verbosity" : -1 }, "transaction" : { "verbosity" : -1 } }, "logLevel" : 0, "logicalSessionRefreshMillis" : 300000, "maxAcceptableLogicalClockDriftSecs" : NumberLong(31536000), "maxBSONDepth" : 200, "maxIndexBuildMemoryUsageMegabytes" : 500, "maxLogSizeKB" : 10, "maxNumInitialSyncCollectionClonerCursors" : 1, "maxSessions" : 1000000, "maxSyncSourceLagSecs" : 30, "maxTransactionLockRequestTimeoutMillis" : 5, "migrateCloneInsertionBatchDelayMS" : 0, "migrateCloneInsertionBatchSize" : 0, "newCollectionsUsePowerOf2Sizes" : true, "notablescan" : false, "numInitialSyncAttempts" : 10, "numInitialSyncCollectionCountAttempts" : 3, "numInitialSyncCollectionFindAttempts" : 3, "numInitialSyncConnectAttempts" : 10, "numInitialSyncListCollectionsAttempts" : 3, "numInitialSyncListDatabasesAttempts" : 3, "numInitialSyncListIndexesAttempts" : 3, "numInitialSyncOplogFindAttempts" : 3, "opensslCipherConfig" : "", "opensslDiffieHellmanParameters" : "", "oplogFetcherInitialSyncMaxFetcherRestarts" : 10, "oplogFetcherSteadyStateMaxFetcherRestarts" : 1, "oplogInitialFindMaxSeconds" : 60, "oplogRetriedFindMaxSeconds" : 2, "orphanCleanupDelaySecs" : 900, "periodicNoopIntervalSecs" : 10, "priorityTakeoverFreshnessWindowSeconds" : 2, "profilingRateLimit" : 1, "quiet" : false, "rangeDeleterBatchDelayMS" : 20, "rangeDeleterBatchSize" : 0, "recoverFromOplogAsStandalone" : false, "redactClientLogData" : false, "replBatchLimitBytes" : 104857600, "replBatchLimitOperations" : 5000, "replElectionTimeoutOffsetLimitFraction" : 0.15, "replIndexPrefetch" : "all", "replWriterThreadCount" : 16, "reportOpWriteConcernCountersInServerStatus" : false, "reservedServiceExecutorRecursionLimit" : 8, "rollbackRemoteOplogQueryBatchSize" : 2000, "rollbackTimeLimitSecs" : 86400, "saslHostName" : "a8-apple-imac-db08.bj", "saslServiceName" : "mongodb", "saslauthdPath" : "", "scramIterationCount" : 10000, "scramSHA256IterationCount" : 15000, "scriptingEngineInterruptIntervalMS" : 1000, "shardedConnPoolIdleTimeoutMinutes" : 2147483647, "skipCorruptDocumentsWhenCloning" : false, "skipShardingConfigurationChecks" : false, "sslMode" : "disabled", "sslWithholdClientCertificate" : false, "startupAuthSchemaValidation" : true, "suppressNoTLSPeerCertificateWarning" : false, "syncdelay" : 60, "synchronousServiceExecutorRecursionLimit" : 8, "taskExecutorPoolSize" : 1, "tcmallocAggressiveMemoryDecommit" : 0, "tcmallocEnableMarkThreadTemporarilyIdle" : false, "tcmallocMaxTotalThreadCacheBytes" : NumberLong(1073741824), "testingSnapshotBehaviorInIsolation" : false, "tlsCATrusts" : null, "traceExceptions" : false, "traceWriteConflictExceptions" : false, "transactionLifetimeLimitSeconds" : 60, "ttlMonitorEnabled" : true, "ttlMonitorSleepSecs" : 60, "waitForSecondaryBeforeNoopWriteMS" : 10, "waitForStepDownOnNonCommandShutdown" : true, "wiredTigerConcurrentReadTransactions" : 128, "wiredTigerConcurrentWriteTransactions" : 128, "wiredTigerCursorCacheSize" : -100, "wiredTigerEngineRuntimeConfig" : "", "wiredTigerMaxCacheOverflowSizeGB" : 0, "wiredTigerSessionCloseIdleTimeSecs" : 300, "writePeriodicNoops" : true, "ok" : 1, "operationTime" : Timestamp(1624848412, 2), "$clusterTime" : { "clusterTime" : Timestamp(1624848412, 2), "signature" : { "hash" : BinData(0,"3W3f3cpyrLTXwISH9OgMWIgduEg="), "keyId" : NumberLong("6943692323435841255") } } }
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