SequoiaDB資料庫之叢集管理

1.1 叢集中新增主機

1．安裝好與其他主機相同的作業系統，並配置好IP地址；

2．按照系統配置需求一節配置好主機名/核心引數並將其他的主機名和IP對應關係加入到

/etc/hosts中；

3．修改每臺叢集主機上/etc/hosts檔案，將新增的主機IP地址與主機對應關係加入到/etc/hosts

檔案中；

4．按照系統配置需求一節驗證配置的正確性。

5．按照SequoiaDB伺服器安裝一節，安裝SequoiaDB軟體。安裝時，注意配置管理服務埠與現有系統的埠保持一致。

下面對上面環境增加一臺主機

1:對新安裝的作業系統按照上面提到的圖形介面安裝或者文字安裝，安裝好資料庫軟體

2：配置IP地址為192.168.25.156

3：配置hostname，可以直接在作業系統中執行：hostname sdbserver4

4：修改host檔案

vi /etch/hosts

192.168.25.156 sdbserver4 sdbserver4

192.168.25.151 sdbserver1 sdbserver1

192.168.25.152 sdbserver2 sdbserver2

192.168.25.153 sdbserver3 sdbserver3

按wq!，進行儲存退出

在其他節點上同樣修改host檔案，保證所有的節點host檔案一致。

5：在192.168.25.156中增加新的資料節點

sdbserver4:~ # /opt/sequoiadb/bin/sdb

Welcome to SequoiaDB shell!

help() for help, Ctrl+c or quit to exit

> var db = new Sdb("192.168.25.156",50000)

(nofile):0 uncaught exception: -15 ----------------報錯提示不明確

Takes 0.536s.

> var db = new Sdb("192.168.25.151",50000)

Takes 0.9074s.

> var datarg = db.getRG("datagroup1")

Takes 0.2140s.

> var datarg = db.getRG("datagroup1")

Takes 0.2196s.

> node3= =datarg.createNode("sdbserver4",51000,"/opt/sequoiadb/database/data/51000")

sdbserver4:51000

Takes 0.21246s.

> node3.start()

Takes 7.26959s.

啟動節點後，用shell命令查詢節點情況：

> db.listReplicaGroups();

{

"Group": [

{

"dbpath": "/opt/sequoiadb/database/cata/30000",

"HostName": "sdbserver1",

"Service": [

{

"Type": 0,

"Name": "30000"

},

{

"Type": 1,

"Name": "30001"

},

{

"Type": 2,

"Name": "30002"

},

{

"Type": 3,

"Name": "30003"

}

],

"NodeID": 1

},

{

"HostName": "sdbserver2",

"dbpath": "/opt/sequoiadb/database/cata/30000",

"Service": [

{

"Type": 0,

"Name": "30000"

},

{

"Type": 1,

"Name": "30001"

},

{

"Type": 2,

"Name": "30002"

},

{

"Type": 3,

"Name": "30003"

}

],

"NodeID": 4

},

{

"HostName": "sdbserver3",

"dbpath": "/opt/sequoiadb/database/cata/30000",

"Service": [

{

"Type": 0,

"Name": "30000"

},

{

"Type": 1,

"Name": "30001"

},

{

"Type": 2,

"Name": "30002"

},

{

"Type": 3,

"Name": "30003"

}

],

"NodeID": 5

},

{

"HostName": "sdbserver4",

"dbpath": "/opt/sequoiadb/database/cata/30000",

"Service": [

{

"Type": 0,

"Name": "30000"

},

{

"Type": 1,

"Name": "30001"

},

{

"Type": 2,

"Name": "30002"

},

{

"Type": 3,

"Name": "30003"

}

],

"NodeID": 6

}

],

"GroupID": 1,

"GroupName": "SYSCatalogGroup",

"PrimaryNode": 1,

"Role": 2,

"Status": 1,

"Version": 8,

"_id": {

"$oid": "526e1ae519b8314ddc83b1f4"

}

{

"Group": [

{

"HostName": "sdbserver1",

"dbpath": "/opt/sequoiadb/database/data/51000",

"Service": [

{

"Type": 0,

"Name": "51000"

},

{

"Type": 1,

"Name": "51001"

},

{

"Type": 2,

"Name": "51002"

}

],

"NodeID": 1000

},

{

"HostName": "sdbserver2",

"dbpath": "/opt/sequoiadb/database/data/51000",

"Service": [

{

"Type": 0,

"Name": "51000"

},

{

"Type": 1,

"Name": "51001"

},

{

"Type": 2,

"Name": "51002"

}

],

"NodeID": 1001

},

{

"HostName": "sdbserver3",

"dbpath": "/opt/sequoiadb/database/data/51000",

"Service": [

{

"Type": 0,

"Name": "51000"

},

{

"Type": 1,

"Name": "51001"

},

{

"Type": 2,

"Name": "51002"

}

],

"NodeID": 1002

},

{

"HostName": "sdbserver4",

"dbpath": "/opt/sequoiadb/database/data/51000",

"Service": [

{

"Type": 0,

"Name": "51000"

},

{

"Type": 1,

"Name": "51001"

},

{

"Type": 2,

"Name": "51002"

}

],

"NodeID": 1003

}

],

"GroupID": 1000,

"GroupName": "datagroup1",

"PrimaryNode": 1002,

"Role": 0,

"Status": 1,

"Version": 5,

"_id": {

"$oid": "526e1d4519b8314ddc83b1f5"

}

Return 2 row(s).

Takes 0.3383s.

從上面Sequoiadb Shell命令列結果中，檢查分割槽組配置情況，可以看到資料組新增了一個資料節點。

在監控頁面中，我們更加清晰的看到物理裝置中新增了一臺sdbserver4的主機。

上面為新增加的節點資訊。

來自 “ ITPUB部落格 ” ，連結：http://blog.itpub.net/10701850/viewspace-1061118/，如需轉載，請註明出處，否則將追究法律責任。

SequoiaDB資料庫之叢集管理

1.1 叢集中新增主機

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