我一直在尝试设置一个简单的复制系统。 1个主要的蒙戈, 1个备份,1个仲裁。
不幸的是,解雇它导致主要被选为SECONDARY,并且 备份被选为PRIMARY(好工作仲裁者)。
Main的优先级为100,备份优先级为0,并且a 奴隶延迟。
我试图通过以下方式告诉备份:
PRIMARY> db.runCommand({replSetReconfig: conf})
{
"assertion" : "initiation and reconfiguration of a replica set must
be sent to a node that can become primary",
"assertionCode" : 13420,
"errmsg" : "db assertion failure",
"ok" : 0
}
PRIMARY> .adminCommand({replSetStepDown:1000000, force:1})
Fri Jan 13 17:27:29 SyntaxError: syntax error (shell):1
PRIMARY> db.adminCommand({replSetStepDown:1000000, force:1})
Fri Jan 13 17:27:36 DBClientCursor::init call() failed
Fri Jan 13 17:27:36 query failed : admin.$cmd { replSetStepDown:
1000000.0, force: 1.0 } to: 127.0.0.1
Fri Jan 13 17:27:36 Error: error doing query: failed shell/
collection.js:151
Fri Jan 13 17:27:36 trying reconnect to 127.0.0.1
Fri Jan 13 17:27:36 reconnect 127.0.0.1 ok
SECONDARY>
SECONDARY>
SECONDARY> db.adminCommand({replSetStepDown:1000000, force:1})
{ "errmsg" : "not primary so can't step down", "ok" : 0 }
哪个有效,但主要还是次要的。
有什么想法吗?谢谢!
配置文件
conf = {
version: 90002,
_id : "example",
members: [
{
_id : 1,
host : "main.example.com:27017",
priority: 100
},
{
_id : 2,
host : "backup.example.com:27017",
priority: 0,
slaveDelay : 3600
},
{
_id : 3,
host : "arbiter.example.com:27017",
priority: 0,
arbiterOnly: true
}
]
};
主要()
上的rs.status{
"set" : "example",
"date" : ISODate("2012-01-13T23:29:09Z"),
"myState" : 2,
"members" : [
{
"_id" : 1,
"name" : "main.example.com:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"optime" : {
"t" : 1326496827000,
"i" : 1
},
"optimeDate" : ISODate("2012-01-13T23:20:27Z"),
"self" : true
},
{
"_id" : 2,
"name" : "backup.example.com:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 324,
"optime" : {
"t" : 1326492641000,
"i" : 1
},
"optimeDate" : ISODate("2012-01-13T22:10:41Z"),
"lastHeartbeat" : ISODate("2012-01-13T23:29:09Z"),
"pingMs" : 0
},
{
"_id" : 3,
"name" : "arbiter.example.com:27017",
"health" : 1,
"state" : 7,
"stateStr" : "ARBITER",
"uptime" : 324,
"optime" : {
"t" : 0,
"i" : 0
},
"optimeDate" : ISODate("1970-01-01T00:00:00Z"),
"lastHeartbeat" : ISODate("2012-01-13T23:29:09Z"),
"pingMs" : 0
}
],
"ok" : 1
}
备份上的rs.status()
{
"set" : "example",
"date" : ISODate("2012-01-13T23:31:06Z"),
"myState" : 2,
"members" : [
{
"_id" : 0,
"name" : "BACKUPVMW02:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"optime" : {
"t" : 1326492641000,
"i" : 1
},
"optimeDate" : ISODate("2012-01-13T22:10:41Z"),
"self" : true
}
],
"ok" : 1
答案 0 :(得分:1)
事实证明,它有一个3节点设置,1个主节点,1个从节点,1个仲裁器不能正常工作。删除了从属延迟,并且优先考虑了优先级(从头开始重新安装所有节点并删除数据目录)
答案 1 :(得分:1)
您可能正在使用旧版本的mongodb - 他们用于投票的字段被称为"投票"那么,我认为,不是优先事项。当他们切换到" priority"字段,你应该调用rs.reconfig(configfile),我想。