MongoDB复制集架构
test-set:PRIMARY>rs.add("127.0.0.1:27020"){ "ok" : 1 }
test-set:PRIMARY> rs.status()
{
"set" : "test-set",
"date" : ISODate("2018-04-19T08:16:36.910Z"),
"myState" : 1,
"term" : NumberLong(2),
"heartbeatIntervalMillis" : NumberLong(2000),
"optimes" : {
"lastCommittedOpTime" : {
"ts" : Timestamp(1524125792, 1),
"t" : NumberLong(2)
},
"appliedOpTime" : {
"ts" : Timestamp(1524125792, 1),
"t" : NumberLong(2)
},
"durableOpTime" : {
"ts" : Timestamp(1524125792, 1),
"t" : NumberLong(2)
}
},
"members" : [
{
"_id" : 1,
"name" : "127.0.0.1:27018",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 1661,
"optime" : {
"ts" : Timestamp(1524125792, 1),
"t" : NumberLong(2)
},
"optimeDurable" : {
"ts" : Timestamp(1524125792, 1),
"t" : NumberLong(2)
},
"optimeDate" : ISODate("2018-04-19T08:16:32Z"),
"optimeDurableDate" : ISODate("2018-04-19T08:16:32Z"),
"lastHeartbeat" : ISODate("2018-04-19T08:16:36.730Z"),
"lastHeartbeatRecv" : ISODate("2018-04-19T08:16:35.732Z"),
"pingMs" : NumberLong(0),
"syncingTo" : "127.0.0.1:27019",
"configVersion" : 3
},
{
"_id" : 2,
"name" : "127.0.0.1:27019",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"uptime" : 4553,
"optime" : {
"ts" : Timestamp(1524125792, 1),
"t" : NumberLong(2)
},
"optimeDate" : ISODate("2018-04-19T08:16:32Z"),
"electionTime" : Timestamp(1524123790, 1),
"electionDate" : ISODate("2018-04-19T07:43:10Z"),
"configVersion" : 3,
"self" : true
},
{
"_id" : 3,
"name" : "127.0.0.1:27017",
"health" : 1,
"state" : 7,
"stateStr" : "ARBITER",
"uptime" : 3323,
"lastHeartbeat" : ISODate("2018-04-19T08:16:36.730Z"),
"lastHeartbeatRecv" : ISODate("2018-04-19T08:16:36.713Z"),
"pingMs" : NumberLong(0),
"configVersion" : 3
},
{
"_id" : 4,
"name" : "127.0.0.1:27020",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 110,
"optime" : {
"ts" : Timestamp(1524125792, 1),
"t" : NumberLong(2)
},
"optimeDurable" : {
"ts" : Timestamp(1524125792, 1),
"t" : NumberLong(2)
},
"optimeDate" : ISODate("2018-04-19T08:16:32Z"),
"optimeDurableDate" : ISODate("2018-04-19T08:16:32Z"),
"lastHeartbeat" : ISODate("2018-04-19T08:16:36.729Z"),
"lastHeartbeatRecv" : ISODate("2018-04-19T08:16:35.914Z"),
"pingMs" : NumberLong(0),
"syncingTo" : "127.0.0.1:27019",
"configVersion" : 3
}
],
"ok" : 1
}
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