Mongodb延迟复制节点配置
cmh0:PRIMARY> cfg=rs.conf();{
"_id" : "cmh0",
"version" : 1,
"members" : [
{
"_id" : 1,
"host" : "192.168.52.128:27017",
"arbiterOnly" : false,
"buildIndexes" : true,
"hidden" : false,
"priority" : 1,
"tags" : {
},
"slaveDelay" : 0,
"votes" : 1
},
{
"_id" : 2,
"host" : "192.168.52.135:27017",
"arbiterOnly" : false,
"buildIndexes" : true,
"hidden" : false,
"priority" : 1,
"tags" : {
},
"slaveDelay" : 0,
"votes" : 1
},
{
"_id" : 3,
"host" : "192.168.52.135:27019",
"arbiterOnly" : false,
"buildIndexes" : true,
"hidden" : false,
"priority" : 1,
"tags" : {
},
"slaveDelay" : 0,
"votes" : 1
}
],
"settings" : {
"chainingAllowed" : true,
"heartbeatTimeoutSecs" : 10,
"getLastErrorModes" : {
},
"getLastErrorDefaults" : {
"w" : 1,
"wtimeout" : 0
}
}
}
cmh0:PRIMARY> cfg.members.priority=0
0
cmh0:PRIMARY> cfg.members.slaveDelay=30
30
cmh0:PRIMARY> rs.reconfig(cfg);
{ "ok" : 1 }
cmh0:PRIMARY> rs.conf()
{
"_id" : "cmh0",
"version" : 2,
"members" : [
{
"_id" : 1,
"host" : "192.168.52.128:27017",
"arbiterOnly" : false,
"buildIndexes" : true,
"hidden" : false,
"priority" : 1,
"tags" : {
},
"slaveDelay" : 0,
"votes" : 1
},
{
"_id" : 2,
"host" : "192.168.52.135:27017",
"arbiterOnly" : false,
"buildIndexes" : true,
"hidden" : false,
"priority" : 0,
"tags" : {
},
"slaveDelay" : 30,
"votes" : 1
},
{
"_id" : 3,
"host" : "192.168.52.135:27019",
"arbiterOnly" : false,
"buildIndexes" : true,
"hidden" : false,
"priority" : 1,
"tags" : {
},
"slaveDelay" : 0,
"votes" : 1
}
],
"settings" : {
"chainingAllowed" : true,
"heartbeatTimeoutSecs" : 10,
"getLastErrorModes" : {
},
"getLastErrorDefaults" : {
"w" : 1,
"wtimeout" : 0
}
}
}
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