QoS管理
注意
QOS为v3.2.1版本新增feature
Master接口限流
Master的稳定性对于整个集群非常重要，所以为了防止意外（失败大量重试）或者恶意攻击，需要对Master的接口进行qps限流管理。
Master的接口限流为qps限流（每秒接受多少个请求），对于没有设置限流的接口，不做任何限制。对于设置了限流的接口，有一个限流等待超时时间可以设置，防止雪崩效应。
查看Master上的所有接口信息
在设置接口限流前，可以查询Master支持哪些接口。
curl -v "http://192.168.0.11:17010/admin/getMasterApiList"
提示
192.168.0.11为Master的ip地址，下同
响应如下：
{
"code": 0,
"data": {
"adddatanode": "/dataNode/add",
"addmetanode": "/metaNode/add",
"addraftnode": "/raftNode/add",
"adminadddatareplica": "/dataReplica/add",
"adminaddmetareplica": "/metaReplica/add",
"adminchangemetapartitionleader": "/metaPartition/changeleader",
"adminclusterfreeze": "/cluster/freeze",
"adminclusterstat": "/cluster/stat",
"admincreatedatapartition": "/dataPartition/create",
"admincreatemetapartition": "/metaPartition/create",
"admincreatepreloaddatapartition": "/dataPartition/createPreLoad",
"admincreatevol": "/admin/createVol",
"admindatapartitionchangeleader": "/dataPartition/changeleader",
"admindecommissiondatapartition": "/dataPartition/decommission",
"admindecommissionmetapartition": "/metaPartition/decommission",
"admindeletedatareplica": "/dataReplica/delete",
"admindeletemetareplica": "/metaReplica/delete",
"admindeletevol": "/vol/delete",
"admindiagnosedatapartition": "/dataPartition/diagnose",
"admindiagnosemetapartition": "/metaPartition/diagnose",
"admingetallnodesetgrpinfo": "/admin/getDomainInfo",
"admingetcluster": "/admin/getCluster",
"admingetdatapartition": "/dataPartition/get",
"admingetinvalidnodes": "/invalid/nodes",
"admingetip": "/admin/getIp",
"admingetisdomainon": "/admin/getIsDomainOn",
"admingetmasterapilist": "/admin/getMasterApiList",
"admingetnodeinfo": "/admin/getNodeInfo",
"admingetnodesetgrpinfo": "/admin/getDomainNodeSetGrpInfo",
"admingetvol": "/admin/getVol",
"adminlistvols": "/vol/list",
"adminloaddatapartition": "/dataPartition/load",
"adminloadmetapartition": "/metaPartition/load",
"adminsetapiqpslimit": "/admin/setApiQpsLimit",
"adminsetclusterinfo": "/admin/setClusterInfo",
"adminsetdprdonly": "/admin/setDpRdOnly",
"adminsetmetanodethreshold": "/threshold/set",
"adminsetnodeinfo": "/admin/setNodeInfo",
"adminsetnoderdonly": "/admin/setNodeRdOnly",
"adminupdatedatanode": "/dataNode/update",
"adminupdatedomaindatauseratio": "/admin/updateDomainDataRatio",
"adminupdatemetanode": "/metaNode/update",
"adminupdatenodesetcapcity": "/admin/updateNodeSetCapcity",
"adminupdatenodesetid": "/admin/updateNodeSetId",
"adminupdatevol": "/vol/update",
"adminupdatezoneexcluderatio": "/admin/updateZoneExcludeRatio",
"adminvolexpand": "/vol/expand",
"adminvolshrink": "/vol/shrink",
"canceldecommissiondatanode": "/dataNode/cancelDecommission",
"clientdatapartitions": "/client/partitions",
"clientmetapartition": "/metaPartition/get",
"clientmetapartitions": "/client/metaPartitions",
"clientvol": "/client/vol",
"clientvolstat": "/client/volStat",
"decommissiondatanode": "/dataNode/decommission",
"decommissiondisk": "/disk/decommission",
"decommissionmetanode": "/metaNode/decommission",
"getallzones": "/zone/list",
"getdatanode": "/dataNode/get",
"getdatanodetaskresponse": "/dataNode/response",
"getmetanode": "/metaNode/get",
"getmetanodetaskresponse": "/metaNode/response",
"gettopologyview": "/topo/get",
"migratedatanode": "/dataNode/migrate",
"migratemetanode": "/metaNode/migrate",
"qosgetclientslimitinfo": "/qos/getClientsInfo",
"qosgetstatus": "/qos/getStatus",
"qosgetzonelimitinfo": "/qos/getZoneLimit",
"qosupdate": "/qos/update",
"qosupdateclientparam": "/qos/updateClientParam",
"qosupdatemasterlimit": "/qos/masterLimit",
"qosupdatezonelimit": "/qos/updateZoneLimit",
"qosupload": "/admin/qosUpload",
"raftstatus": "/get/raftStatus",
"removeraftnode": "/raftNode/remove",
"updatezone": "/zone/update",
"usercreate": "/user/create",
"userdelete": "/user/delete",
"userdeletevolpolicy": "/user/deleteVolPolicy",
"usergetakinfo": "/user/akInfo",
"usergetinfo": "/user/info",
"userlist": "/user/list",
"userremovepolicy": "/user/removePolicy",
"usersofvol": "/vol/users",
"usertransfervol": "/user/transferVol",
"userupdate": "/user/update",
"userupdatepolicy": "/user/updatePolicy"
},
"msg": "success"
}
设置接口限流
以接口/dataPartition/get为例，从接口查询命令响应中可以得到，接口的名字为admingetdatapartition，接口限流命令如下：
curl -v "http://192.168.0.11:17010/admin/setApiQpsLimit?name=AdminGetDataPartition&limit=2000&timeout=5"
提示
name参数的值为接口查询命令响应中data下的key，如admingetdatapartition，值的字母大小写不区分，可以写为AdminGetDataPartition
| 参数 | 类型 | 描述 |
|---|---|---|
| name | string | 接口名称（字母不区分大小写） |
| timeout | uint | 接口限流等待超时时间(单位：秒) |
当触发该接口限流时（达到qps限流值），后续的请求将进行等待，默认超时时间为5秒。超过5秒仍然没有得到处理，则返回429响应码。
查询接口限流信息
curl -v "http://192.168.0.11:17010/admin/getMasterApiList"
响应如下：
{
"code": 0,
"msg": "success",
"data": {
"/admin/getIp": {
"api_name": "admingetip",
"query_path": "/admin/getIp",
"limit": 1,
"limiter_timeout": 5
},
"/dataPartition/get": {
"api_name": "admingetdatapartition",
"query_path": "/dataPartition/get",
"limit": 2000,
"limiter_timeout": 5
}
}
}
删除接口限流
curl -v "http://192.168.0.11:17010/admin/rmApiQpsLimit?name=AdminGetDataPartition"
| 参数 | 类型 | 描述 |
|---|---|---|
| name | string | 接口名称（字母不区分大小写） |
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