<span>副本集的replSetGetStatus监控</span>

glc-test:PRIMARY> rs.status()

glc-test:PRIMARY> db.adminCommand({replSetGetStatus:1})

glc-test:PRIMARY> db.adminCommand( { replSetGetStatus: 1 } )
{
        "set" : "glc-test",
        "date" : ISODate("2020-11-16T06:10:43.118Z"),
        "myState" : 1,
        "term" : NumberLong(115),
        "syncingTo" : "",
        "syncSourceHost" : "",
        "syncSourceId" : -1,
        "heartbeatIntervalMillis" : NumberLong(2000),
        "optimes" : {
                "lastCommittedOpTime" : {
                        "ts" : Timestamp(1605507039, 1),
                        "t" : NumberLong(115)
                },
                "readConcernMajorityOpTime" : {
                        "ts" : Timestamp(1605507039, 1),
                        "t" : NumberLong(115)
                },
                "appliedOpTime" : {
                        "ts" : Timestamp(1605507039, 1),
                        "t" : NumberLong(115)
                },
                "durableOpTime" : {
                        "ts" : Timestamp(1605507039, 1),
                        "t" : NumberLong(115)
                }
        },
        "lastStableCheckpointTimestamp" : Timestamp(1605506999, 1),
        "electionCandidateMetrics" : {
                "lastElectionReason" : "stepUpRequestSkipDryRun",
                "lastElectionDate" : ISODate("2020-11-10T10:05:52.181Z"),
                "electionTerm" : NumberLong(115),
                "lastCommittedOpTimeAtElection" : {
                        "ts" : Timestamp(1605002746, 1),
                        "t" : NumberLong(114)
                },
                "lastSeenOpTimeAtElection" : {
                        "ts" : Timestamp(1605002746, 1),
                        "t" : NumberLong(114)
                },
                "numVotesNeeded" : 2,
                "priorityAtElection" : 1,
                "electionTimeoutMillis" : NumberLong(10000),
                "priorPrimaryMemberId" : 0,
                "numCatchUpOps" : NumberLong(0),
                "newTermStartDate" : ISODate("2020-11-10T10:05:52.192Z"),
                "wMajorityWriteAvailabilityDate" : ISODate("2020-11-10T10:05:52.196Z")
        },
        "electionParticipantMetrics" : {
                "votedForCandidate" : true,
                "electionTerm" : NumberLong(114),
                "lastVoteDate" : ISODate("2020-11-10T09:10:06.265Z"),
                "electionCandidateMemberId" : 0,
                "voteReason" : "",
                "lastAppliedOpTimeAtElection" : {
                        "ts" : Timestamp(1604999404, 1),
                        "t" : NumberLong(113)
                },
                "maxAppliedOpTimeInSet" : {
                        "ts" : Timestamp(1604999404, 1),
                        "t" : NumberLong(113)
                },
                "priorityAtElection" : 1
        },
        "members" : [
                {
                        "_id" : 0,
                        "name" : "xxx:28042",
                        "health" : 1,
                        "state" : 2,
                        "stateStr" : "SECONDARY",
                        "uptime" : 273490,
                        "optime" : {
                                "ts" : Timestamp(1605507039, 1),
                                "t" : NumberLong(115)
                        },
                        "optimeDurable" : {
                                "ts" : Timestamp(1605507039, 1),
                                "t" : NumberLong(115)
                        },
                        "optimeDate" : ISODate("2020-11-16T06:10:39Z"),
                        "optimeDurableDate" : ISODate("2020-11-16T06:10:39Z"),
                        "lastHeartbeat" : ISODate("2020-11-16T06:10:41.878Z"),
                        "lastHeartbeatRecv" : ISODate("2020-11-16T06:10:42.506Z"),
                        "pingMs" : NumberLong(1),
                        "lastHeartbeatMessage" : "",
                        "syncingTo" : "zzz:28042",
                        "syncSourceHost" : "zzz:28042",
                        "syncSourceId" : 2,
                        "infoMessage" : "",
                        "configVersion" : 3
                },
                {
                        "_id" : 1,
                        "name" : "yyy:28042",
                        "health" : 1,
                        "state" : 1,
                        "stateStr" : "PRIMARY",
                        "uptime" : 6910118,
                        "optime" : {
                                "ts" : Timestamp(1605507039, 1),
                                "t" : NumberLong(115)
                        },
                        "optimeDate" : ISODate("2020-11-16T06:10:39Z"),
                        "syncingTo" : "",
                        "syncSourceHost" : "",
                        "syncSourceId" : -1,
                        "infoMessage" : "",
                        "electionTime" : Timestamp(1605002752, 1),
                        "electionDate" : ISODate("2020-11-10T10:05:52Z"),
                        "configVersion" : 3,
                        "self" : true,
                        "lastHeartbeatMessage" : ""
                },
                {
                        "_id" : 2,
                        "name" : "zzz:28042",
                        "health" : 1,
                        "state" : 2,
                        "stateStr" : "SECONDARY",
                        "uptime" : 4736053,
                        "optime" : {
                                "ts" : Timestamp(1605507039, 1),
                                "t" : NumberLong(115)
                        },
                        "optimeDurable" : {
                                "ts" : Timestamp(1605507039, 1),
                                "t" : NumberLong(115)
                        },
                        "optimeDate" : ISODate("2020-11-16T06:10:39Z"),
                        "optimeDurableDate" : ISODate("2020-11-16T06:10:39Z"),
                        "lastHeartbeat" : ISODate("2020-11-16T06:10:43.086Z"),
                        "lastHeartbeatRecv" : ISODate("2020-11-16T06:10:41.584Z"),
                        "pingMs" : NumberLong(0),
                        "lastHeartbeatMessage" : "",
                        "syncingTo" : "yyy:28042",
                        "syncSourceHost" : "yyy:28042",
                        "syncSourceId" : 1,
                        "infoMessage" : "",
                        "configVersion" : 3
                }
        ],
        "ok" : 1,
        "operationTime" : Timestamp(1605507039, 1),
        "$clusterTime" : {
                "clusterTime" : Timestamp(1605507039, 1),
                "signature" : {
                        "hash" : BinData(0,"tXhOiordhjP3y0HkfnuhSoQ8o7Q="),
                        "keyId" : NumberLong("6856584343653974019")
                }
        }
}
glc-test:PRIMARY>