MongoDB副本集没有无法访问的主节点和节点
我正在尝试在mongoDB中创建一个包含3个节点(主节点和2个辅助节点)的基本副本集。 它曾经对我起过作用,但我突然在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。我试着重新设计,但没有任何效果。我所完成的只是删除2个节点并保留1个主节点,但每当我尝试添加2个节点时,就会出现一个错误,即节点正在重新配置MongoDB副本集没有无法访问的主节点和节点,mongodb,replication,database-replication,Mongodb,Replication,Database Replication,我正在尝试在mongoDB中创建一个包含3个节点(主节点和2个辅助节点)的基本副本集。 它曾经对我起过作用,但我突然在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。我试着重新设计,但没有任何效果。我所完成的只是删除2个节点并保留1个主节点,但每当我尝试添加2个节点时,就会出现一个错误,即节点正在重新配置 rs1:SECONDARY> rs.status() { "set" : "rs1",
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, 1),
"t" : NumberLong(3)
},
"durableOpTime" : {
"ts" : Timestamp(1600758624, 1),
"t" : NumberLong(3)
},
"lastAppliedWallTime" : ISODate("2020-09-22T07:10:24.326Z"),
"lastDurableWallTime" : ISODate("2020-09-22T07:10:24.326Z")
},
"lastStableRecoveryTimestamp" : Timestamp(1600758614, 1),
"members" : [
{
"_id" : 0,
"name" : "127.0.0.1:27011",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 3007,
"optime" : {
"ts" : Timestamp(1600758624, 1),
"t" : NumberLong(3)
},
"optimeDate" : ISODate("2020-09-22T07:10:24Z"),
"syncSourceHost" : "",
"syncSourceId" : -1,
"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, 0),
"t" : NumberLong(-1)
},
"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",
"syncSourceHost" : "",
"syncSourceId" : -1,
"infoMessage" : "",
"configVersion" : -1,
"configTerm" : -1
},
{
"_id" : 2,
"name" : "127.0.0.1:27013",
"health" : 0,
"state" : 8,
"stateStr" : "(not reachable/healthy)",
"uptime" : 0,
"optime" : {
"ts" : Timestamp(0, 0),
"t" : NumberLong(-1)
},
"optimeDurable" : {
"ts" : Timestamp(0, 0),
"t" : NumberLong(-1)
},
"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",
"syncSourceHost" : "",
"syncSourceId" : -1,
"infoMessage" : "",
"configVersion" : -1,
"configTerm" : -1
}
],
"ok" : 1,
"$clusterTime" : {
"clusterTime" : Timestamp(1600758624, 1),
"signature" : {
"hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
"keyId" : NumberLong(0)
}
},
"operationTime" : Timestamp(1600758624, 1)
}
另外,当我尝试使用3节点memeber创建配置文件,然后使用rs.initiate()创建配置文件时,我会收到错误消息“errmsg”:“已初始化”。如果您正在设置副本集,您应该初始化它一次,然后不要触摸它的配置
如果您有意重新配置RS,那么您可以更改其配置,但这不是您当前场景中所做的
在3节点RS中,至少必须有2个节点才能有主节点
当您第一次遇到问题时,您应该做的是打开两个关闭节点中的一个,然后RS应该已经自动修复
如果您没有成功更改任何设置,您可能仍然可以启动停机节点,这可能会修复所有问题。您启动了服务吗?所有服务都在本地主机上运行,您是否为每个实例使用专用的
dbPath
?我运行它们来启动服务:/usr/bin/mongod--config/home/mongodb/data1/db/mongod.cfg--port 27011&/usr/bin/mongod--config/home/mongodb/data2/db/mongod.cfg--port 27012&/usr/bin/mongod--config/home/mongodb/data3/db/mongod.cfg--port 27013&您的mongod.cfg
文件看起来像?``echo“复制:replSetName:rs1”>/home/mongodb/data1/db/mongod.cfg echo“复制:replSetName:rs1”>/home/mongodb/data2/db/mongod.cfg echo“复制:replSetName:rs1”>>/home/mongodb/data3/db/mongod.cfg``请用这些详细信息更新问题,而不是发表评论。