1
我有一个副本集有三个成员,host0:27100
作为主要成员。最近我改变了配置,并将host2:27102
作为主要成员。跟随these文档。MongoDB主副本集成员同步到辅助节点
更改配置后,rs.status()
输出表示host1:27101
是"syncingTo" : "host2:27102"
的意图。
但是,新主要产品host2:27102
的输出显示它是"syncingTo" : "host0:27100"
,它是以前的主要成员,并且已更改为次要产品。
我不明白为什么它同步到次要成员。这是一种正常的行为吗?
s0:SECONDARY> rs.status()
{
"set" : "s0",
"date" : ISODate("2013-09-25T12:31:42Z"),
"myState" : 2,
"syncingTo" : "host2:27102",
"members" : [
{
"_id" : 0,
"name" : "host0:27100",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 428068,
"optime" : Timestamp(1380112272, 1),
"optimeDate" : ISODate("2013-09-25T12:31:12Z"),
"self" : true
},
{
"_id" : 1,
"name" : "host1:27101",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 397,
"optime" : Timestamp(1380112272, 1),
"optimeDate" : ISODate("2013-09-25T12:31:12Z"),
"lastHeartbeat" : ISODate("2013-09-25T12:31:42Z"),
"lastHeartbeatRecv" : ISODate("2013-09-25T12:31:41Z"),
"pingMs" : 10,
"syncingTo" : "host2:27102"
},
{
"_id" : 2,
"name" : "host2:27102",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"uptime" : 397,
"optime" : Timestamp(1380112272, 1),
"optimeDate" : ISODate("2013-09-25T12:31:12Z"),
"lastHeartbeat" : ISODate("2013-09-25T12:31:42Z"),
"lastHeartbeatRecv" : ISODate("2013-09-25T12:31:41Z"),
"pingMs" : 2,
"syncingTo" : "host0:27100"
}
],
"ok" : 1
}