MongoDB副本集没有主节点和不可达节点

问题描述

我正在尝试在mongoDB中创建一个具有3个节点（主节点和2个辅助节点）的基本副本集。它为我工作了一次，但突然我在rs.status（）中看到主节点现在是辅助节点，而其他两个节点则无法访问。我试图重新配置，启动但没有任何效果。我所要做的就是删除2个节点并保留1个主节点，但是每当我尝试添加2个节点时，都会出现错误，提示该节点正在重新配置。

rs1:SECONDARY> rs.status()
{
        "set" : "rs1","date" : ISODate("2020-09-22T07:11:47.370Z"),"myState" : 2,"term" : NumberLong(3),"syncSourceHost" : "","syncSourceId" : -1,"heartbeatIntervalMillis" : NumberLong(2000),"majorityVoteCount" : 2,"writeMajorityCount" : 2,"votingMembersCount" : 3,"writableVotingMembersCount" : 3,"optimes" : {
                "lastCommittedOpTime" : {
                        "ts" : Timestamp(1600758614,1),"t" : NumberLong(3)
                },"lastCommittedWallTime" : ISODate("2020-09-22T07:10:14.325Z"),"appliedOpTime" : {
                        "ts" : Timestamp(1600758624,"durableOpTime" : {
                        "ts" : Timestamp(1600758624,"lastAppliedWallTime" : ISODate("2020-09-22T07:10:24.326Z"),"lastDurableWallTime" : ISODate("2020-09-22T07:10:24.326Z")
        },"lastStableRecoveryTimestamp" : Timestamp(1600758614,"members" : [
                {
                        "_id" : 0,"name" : "127.0.0.1:27011","health" : 1,"state" : 2,"stateStr" : "SECONDARY","uptime" : 3007,"optime" : {
                                "ts" : Timestamp(1600758624,"t" : NumberLong(3)
                        },"optimeDate" : ISODate("2020-09-22T07:10:24Z"),"infoMessage" : "","configVersion" : 382587,"configTerm" : -1,"self" : true,"lastHeartbeatMessage" : ""
                },{
                        "_id" : 1,"name" : "127.0.0.1:27012","health" : 0,"state" : 8,"stateStr" : "(not reachable/healthy)","uptime" : 0,"optime" : {
                                "ts" : Timestamp(0,0),"t" : NumberLong(-1)
                        },"optimeDurable" : {
                                "ts" : Timestamp(0,"optimeDate" : ISODate("1970-01-01T00:00:00Z"),"optimeDurableDate" : ISODate("1970-01-01T00:00:00Z"),"lastHeartbeat" : ISODate("2020-09-22T07:11:42.692Z"),"lastHeartbeatRecv" : ISODate("1970-01-01T00:00:00Z"),"pingMs" : NumberLong(0),"lastHeartbeatMessage" : "Couldn't get a connection within the time limit of 500ms","configVersion" : -1,"configTerm" : -1
                },{
                        "_id" : 2,"name" : "127.0.0.1:27013","configTerm" : -1
                }
        ],"ok" : 1,"$clusterTime" : {
                "clusterTime" : Timestamp(1600758624,"signature" : {
                        "hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),"keyId" : NumberLong(0)
                }
        },"operationTime" : Timestamp(1600758624,1)
}

此外，当我尝试使用3个节点成员创建配置文件，然后再使用rs.initiate（）时，我收到错误消息“ errmsg”：“已初始化”。

解决方法

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database-replication mongodb replication