实战~REDHAT 6.5 X64上安装ORACLE双机（ROSE

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以下是一次实施的全程介绍，非虚拟机环境。
1、系统环境配置介绍
1.1、操作系统规划

主机名	服务器配置	操作系统版本	安装数据库版本	双机软件版本
Jzzf-db1	E5-2609 v3*2 　　128GB内存 　　300G硬盘	Redhat linux 6.5 x64	Oracle 10.2.0.5	Rose ha 9.0
Jzzf-db2	E5-2609 v3*2 　　128GB内存 　　300G硬盘	Redhat linux 6.5 x64	Oracle 10.2.0.5	Rose ha 9.0

1.2、IP地址规划

主机名	IP地址	浮动IP
Jzzf-db1	Eth0:10.20.160.165 　　Eth1:192.168.1.1 　　Eth2:172.16.0.1	10.20.160.101
Jzzf-db2	Eth0:10.20.160.166 　　Eth1:192.168.1.2 　　Eth2:172.16.0.2

1.3、磁盘规划

主机名	数据磁盘	仲裁磁盘
Jzzf-db1	sdb/sdd聚合为/dev/mapper/oradata 1TB	sdc/sde聚合为/dev/mapper/vote 10GB
Jzzf-db2	sdb/sdd聚合为/dev/mapper/oradata 1TB	sdc/sde聚合为/dev/mapper/vote 10GB

2、安装ORACLE数据库软件
2.1修改主机名及HOSTS文件等
　　具体的修改方法我就不写了。VI编辑就行
　　[root@jzzf-db1 ~]# cat /etc/hosts
　　127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
　　::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
　　10.20.160.165 jzzf-db1
　　10.20.160.166 jzzf-db2
　　[root@jzzf-db1 ~]# cat /etc/sysconfig/network
　　NETWORKING=yes
　　HOSTNAME=jzzf-db1
　　[root@jzzf-db1 ~]# cat /etc/redhat-release
　　Red Hat Enterprise Linux Server release 6.5 (Santiago) //先安装10.2.0.1，要修改该文件，修改过程见2.2
　　[root@jzzf-db1 ~]# uname -a
　　Linux localhost.localdomain 2.6.32-431.el6.x86_64 #1 SMP Sun Nov 10 22:19:54 EST 2013 x86_64 x86_64 x86_64 GNU/Linux
　　[root@jzzf-db1 ~]# uname -r
　　2.6.32-431.el6.x86_64
　　[root@jzzf-db2 ~]# cat /etc/hosts
　　127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
　　::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
　　10.20.160.165 jzzf-db1
　　10.20.160.166 jzzf-db2
　　[root@jzzf-db2 ~]# cat /etc/sysconfig/network
　　NETWORKING=yes
　　HOSTNAME=jzzf-db2
　　[root@jzzf-db2 ~]# cat /etc/redhat-release
　　Red Hat Enterprise Linux Server release 6.5 (Santiago)
　　[root@jzzf-db2 ~]# uname -a
　　Linux localhost.localdomain 2.6.32-431.el6.x86_64 #1 SMP Sun Nov 10 22:19:54 EST 2013 x86_64 x86_64 x86_64 GNU/Linux

[root@jzzf-db2 ~]# uname -r

　　2.6.32-431.el6.x86_64
2.2、修改系统各个参数配置文件
　　[root@jzzf-db1 ~]# grep -v "^#" /etc/security/limits.conf
　　oracle soft nproc 2047
　　oracle hard nproc 16384
　　oracle soft nofile 1024
　　oracle hard nofile 65536
　　[root@jzzf-db2 ~]#grep -v "^#" /etc/security/limits.conf
　　oracle soft nproc 2047
　　oracle hard nproc 16384
　　oracle soft nofile 1024
　　oracle hard nofile 65536
　　[root@jzzf-db1 ~]# grep -v "^#" /etc/sysctl.conf
　　net.ipv4.ip_forward = 0
　　net.ipv4.conf.default.rp_filter = 1
　　net.ipv4.conf.default.accept_source_route = 0
　　kernel.sysrq = 0
　　kernel.core_uses_pid = 1
　　net.ipv4.tcp_syncookies = 1
　　net.bridge.bridge-nf-call-ip6tables = 0
　　net.bridge.bridge-nf-call-iptables = 0
　　net.bridge.bridge-nf-call-arptables = 0
　　kernel.msgmnb = 65536
　　kernel.msgmax = 65536
　　kernel.shmmax = 68719476736
　　kernel.shmall = 4294967296
　　kernel.shmmni = 4096
　　kernel.sem = 250 32000 100 128
　　fs.file-max = 65536
　　net.ipv4.ip_local_port_range = 1024 65000
　　net.core.rmem_default = 262144
　　net.core.rmem_max = 262144
　　net.core.wmem_default = 262144
　　net.core.wmem_max = 262144
　　[root@jzzf-db2 ~]# grep -v "^#" /etc/sysctl.conf
　　net.ipv4.ip_forward = 0
　　net.ipv4.conf.default.rp_filter = 1
　　net.ipv4.conf.default.accept_source_route = 0
　　kernel.sysrq = 0
　　kernel.core_uses_pid = 1
　　net.ipv4.tcp_syncookies = 1
　　net.bridge.bridge-nf-call-ip6tables = 0
　　net.bridge.bridge-nf-call-iptables = 0
　　net.bridge.bridge-nf-call-arptables = 0
　　kernel.msgmnb = 65536
　　kernel.msgmax = 65536
　　kernel.shmmax = 68719476736
　　kernel.shmall = 4294967296
　　kernel.shmmni = 4096
　　kernel.sem = 250 32000 100 128
　　fs.file-max = 65536
　　net.ipv4.ip_local_port_range = 1024 65000
　　net.core.rmem_default = 262144
　　net.core.rmem_max = 262144
　　net.core.wmem_default = 262144
　　net.core.wmem_max = 262144
　　[root@jzzf-db1 tmp]# cat /etc/redhat-release
　　Red Hat Enterprise Linux Server release 6.5 (Santiago)
　　[root@jzzf-db1 tmp]# cp /etc/redhat-release /tmp/
　　[root@jzzf-db1 tmp]# vi /etc/redhat-release
　　[root@jzzf-db1 tmp]# cat /etc/redhat-release
　　redhat-4
2.3、创建ORACLE用户及软件安装路径
　　groupadd -g 6000 oinstall
　　groupadd -g 6001 dba
　　useradd -g oinstall -G dba -u 601 oracle
　　passwd oracle
　　mkdir -p /u01/app/oracle/product/10.2.0/db_1
　　chown -R oracle:oinstall /u01/
　　chmod -R 775 /u01
2.4、配置yum源安装所需要的软件包
　　两节点都需要配置
　　配置YUM源
　　挂载操作系统光盘到mnt目录

[root@jzzf-db1 ~]#mount /dev/cdrom /mnt

[root@jzzf-db1 ~]# rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release

[root@jzzf-db1 ~]# cat /etc/yum.repos.d/local.repo

[DISK]

　　name=DISK
　　baseurl=file:///mnt/Server
　　gpgchekc=0
　　enable=1
　　安装需求包：

[root@jzzf-db1 ~]# mount -o loop /tmp/rhel-server-6.5-x86_64-dvd.iso /mnt

　　yum install -y libXp.i686 libXp.x86_64 libXp-devel.i686 libXp-devel.x86_64 libXpm.i686 libXpm-devel.i686 libXpm-devel.x86_64 libXpm.x86_64
　　yum install -y libXtst.x86_64 libXtst-devel.x86_64 libXtst.i686 libXtst-devel.i686
　　yum install -y binutils* compat-libstdc++-* elfutils-libelf-* elfutils-libelf-devel-* elfutils-libelf-devel-static-* gcc-* gcc-c++-* glibc-* glibc-common-* glibc-devel-* glibc-headers-* ksh libaio-* libaio-devel-* libgcc libstdc++-* libstdc++-devel make sysstat unixODBC unixODBC-devel compat-libstdc++-33.i386 compat-libstdc++-296.i386 glibc.i686 glibc-devel.i386 unixODBC.i386 unixODBC-devel.i386 libaio.i386 libaio-devel.i386 libgcc.i386 libstdc++.i386 libstdc++-devel.i386 libaio-devel.i386 libXp.i386
　　yum install -y binutils* compat-db setarch compat-libstdc++-* control-center elfutils-libelf-* elfutils-libelf-devel-* elfutils-libelf-devel-static-* gcc-* gcc-c++-* glibc-* glibc-common-* glibc-devel-* glibc-headers-* ksh libaio-* libaio-devel-* libgcc libstdc++-* libstdc++-devel make sysstat unixODBC unixODBC-devel compat-libstdc++-33.i386 compat-libstdc++-296.i386 glibc.i686 glibc-devel.i386 unixODBC.i386 unixODBC-devel.i386 libaio.i386 libaio-devel.i386 libgcc.i386 libstdc++.i386 libstdc++-devel.i386 libaio-devel.i386 libXp.i386
　　yum install binutils compat-db compat-libstdc++-33 glibc glibc-devel glibc-headers gcc gcc-c++ libstdc++ cpp make libaio ksh elfutils-libelf sysstat libaio libaio-devel setarch gcc make binutils openmotif glibc setarch libaio compat-db libXp openmotif compat-libstdc++-33-3.2.3 compat-gcc-34-c++-
　　cd /mnt/Packages
　　rpm -ivh glibc-devel-2.12-1.132.el6.i686.rpm
2.5、安装多路径，配置存储
　　[root@jzzf-db1 ~]# yum install device-mapper*
　　Loaded plugins: product-id, refresh-packagekit, security, subscription-manager
　　This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
　　Setting up Install Process
　　Package device-mapper-persistent-data-0.2.8-2.el6.x86_64 already installed and latest version
　　Package device-mapper-event-libs-1.02.79-8.el6.x86_64 already installed and latest version
　　Package device-mapper-1.02.79-8.el6.x86_64 already installed and latest version
　　Package device-mapper-libs-1.02.79-8.el6.x86_64 already installed and latest version
　　Package device-mapper-event-1.02.79-8.el6.x86_64 already installed and latest version
　　Resolving Dependencies
　　--> Running transaction check
　　---> Package device-mapper-multipath.x86_64 0:0.4.9-72.el6 will be installed
　　---> Package device-mapper-multipath-libs.x86_64 0:0.4.9-72.el6 will be installed
　　--> Finished Dependency Resolution
　　Dependencies Resolved
　　======================================================================================================================================
　　Package Arch Version Repository Size
　　======================================================================================================================================
　　Installing:
　　device-mapper-multipath x86_64 0.4.9-72.el6 DISK 116 k
　　device-mapper-multipath-libs x86_64 0.4.9-72.el6 DISK 180 k
　　Transaction Summary
　　======================================================================================================================================
　　Install 2 Package(s)
　　Total download size: 297 k
　　Installed size: 653 k
　　Is this ok [y/N]: y
　　Downloading Packages:
　　--------------------------------------------------------------------------------------------------------------------------------------
　　Total 7.2 MB/s | 297 kB 00:00
　　Running rpm_check_debug
　　Running Transaction Test
　　Transaction Test Succeeded
　　Running Transaction
　　Warning: RPMDB altered outside of yum.
　　Installing : device-mapper-multipath-libs-0.4.9-72.el6.x86_64 1/2
　　Installing : device-mapper-multipath-0.4.9-72.el6.x86_64 2/2
　　Verifying : device-mapper-multipath-0.4.9-72.el6.x86_64 1/2
　　Verifying : device-mapper-multipath-libs-0.4.9-72.el6.x86_64 2/2
　　Installed:
　　device-mapper-multipath.x86_64 0:0.4.9-72.el6 device-mapper-multipath-libs.x86_64 0:0.4.9-72.el6
　　Complete!
　　配置多路径服务开机启动
　　[root@jzzf-db2 ~]# chkconfig --level 35 multipathd on
　　[root@jzzf-db2 ~]# chkconfig --list |grep multipathd
　　multipathd 0:off 1:off 2:off 3:on 4:off 5:on 6:off
　　[root@jzzf-db2 /]# /etc/init.d/multipathd start
　　Starting multipathd daemon: [ OK ]
　　[root@jzzf-db2 /]# touch /etc/multipath.conf
　　[root@jzzf-db2 /]# multipath -ll
　　2694f7863475a3844 dm-1 INSPUR,SANVDSK
　　size=10G features='0' hwhandler='0' wp=rw
　　|-+- policy='round-robin 0' prio=1 status=active
　　| `- 1:0:0:2 sdc 8:32 active ready running
　　`-+- policy='round-robin 0' prio=1 status=enabled
　　`- 2:0:0:2 sde 8:64 active ready running
　　270746443556c555a dm-0 INSPUR,SANVDSK
　　size=1.0T features='0' hwhandler='0' wp=rw
　　|-+- policy='round-robin 0' prio=1 status=active
　　| `- 1:0:0:1 sdb 8:16 active ready running
　　`-+- policy='round-robin 0' prio=1 status=enabled
　　`- 2:0:0:1 sdd 8:48 active ready running
　　[root@jzzf-db2 /]# grep -v "^#" /etc/multipath.conf
　　blacklist {
　　devnode "^sda"
　　}
　　defaults {
　　user_friendly_names yes
　　}
　　multipaths {
　　multipath {
　　wwid 2694f7863475a3844
　　alias vote
　　path_grouping_policy multibus
　　path_selector "round-robin 0"
　　failback manual
　　rr_weight priorities
　　no_path_retry 5
　　}
　　multipath {
　　wwid 270746443556c555a
　　alias oradata
　　path_grouping_policy multibus
　　path_selector "round-robin 0"
　　failback manual
　　rr_weight priorities
　　no_path_retry 5
　　}
　　}
　　[root@jzzf-db2 /]# /etc/init.d/multipathd restart
　　[root@jzzf-db2 /]# multipath -F
　　[root@jzzf-db2 /]# multipath -v2
　　create: oradata (270746443556c555a) undef INSPUR,SANVDSK
　　size=1.0T features='0' hwhandler='0' wp=undef
　　`-+- policy='round-robin 0' prio=1 status=undef
　　|- 1:0:0:1 sdb 8:16 undef ready running
　　`- 2:0:0:1 sdd 8:48 undef ready running
　　create: vote (2694f7863475a3844) undef INSPUR,SANVDSK
　　size=10G features='0' hwhandler='0' wp=undef
　　`-+- policy='round-robin 0' prio=1 status=undef
　　|- 1:0:0:2 sdc 8:32 undef ready running
　　`- 2:0:0:2 sde 8:64 undef ready running
　　[root@jzzf-db2 /]# multipath -ll
　　oradata (270746443556c555a) dm-0 INSPUR,SANVDSK
　　size=1.0T features='1 queue_if_no_path' hwhandler='0' wp=rw
　　`-+- policy='round-robin 0' prio=1 status=active
　　|- 1:0:0:1 sdb 8:16 active ready running
　　`- 2:0:0:1 sdd 8:48 active ready running
　　vote (2694f7863475a3844) dm-1 INSPUR,SANVDSK
　　size=10G features='1 queue_if_no_path' hwhandler='0' wp=rw
　　`-+- policy='round-robin 0' prio=1 status=active
　　|- 1:0:0:2 sdc 8:32 active ready running
　　`- 2:0:0:2 sde 8:64 active ready running
　　[root@jzzf-db2 mapper]# pwd
　　/dev/mapper
　　[root@jzzf-db2 mapper]# ls
　　control oradata vote
　　[root@jzzf-db1 mapper]# fdisk /dev/mapper/oradata
　　Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
　　Building a new DOS disklabel with disk identifier 0x181ae45d.
　　Changes will remain in memory only, until you decide to write them.
　　After that, of course, the previous content won't be recoverable.
　　Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
　　The device presents a logical sector size that is smaller than
　　the physical sector size. Aligning to a physical sector (or optimal
　　I/O) size boundary is recommended, or performance may be impacted.
　　WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
　　switch off the mode (command 'c') and change display units to
　　sectors (command 'u').
　　Command (m for help): n
　　Command action
　　e extended
　　p primary partition (1-4)
　　p
　　Partition number (1-4): 1
　　First cylinder (1-133674, default 1):
　　Using default value 1
　　Last cylinder, +cylinders or +size{K,M,G} (1-133674, default 133674):
　　Using default value 133674
　　Command (m for help): p
　　Disk /dev/mapper/oradata: 1099.5 GB, 1099511627776 bytes
　　255 heads, 63 sectors/track, 133674 cylinders
　　Units = cylinders of 16065 * 512 = 8225280 bytes
　　Sector size (logical/physical): 512 bytes / 4096 bytes
　　I/O size (minimum/optimal): 4096 bytes / 524288 bytes
　　Disk identifier: 0x181ae45d
　　Device Boot Start End Blocks Id System
　　/dev/mapper/oradatap1 1 133674 1073736373+ 83 Linux
　　Partition 1 does not start on physical sector boundary.
　　Command (m for help): w
　　The partition table has been altered!
　　Calling ioctl() to re-read partition table.
　　WARNING: Re-reading the partition table failed with error 22: Invalid argument.
　　The kernel still uses the old table. The new table will be used at
　　the next reboot or after you run partprobe(8) or kpartx(8)
　　Syncing disks.
　　创建完分区后，可能需要重启才能识别出/dev/mapper/oradatap1文件
　　[root@jzzf-db1 mapper]# mkfs.ext4 /dev/mapper/oradatap1
　　mke2fs 1.41.12 (17-May-2010)
　　/dev/mapper/oradatap1 alignment is offset by 512 bytes.
　　This may result in very poor performance, (re)-partitioning suggested.
　　Filesystem label=
　　OS type: Linux
　　Block size=4096 (log=2)
　　Fragment size=4096 (log=2)
　　Stride=1 blocks, Stripe  blocks
　　67108864 inodes, 268434093 blocks
　　13421704 blocks (5.00%) reserved for the super user
　　First data block=0
　　Maximum filesystem blocks=4294967296
　　8192 block groups
　　32768 blocks per group, 32768 fragments per group
　　8192 inodes per group
　　Superblock backups stored on blocks:
　　32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
　　4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
　　102400000, 214990848
　　Writing inode tables: done
　　Creating journal (32768 blocks): done
　　Writing superblocks and filesystem accounting information:
　　Message from syslogd@jzzf-db1 at May 12 14:04:00 ...
　　kernel:BUG: soft lockup - CPU#6 stuck for 67s! [mkfs.ext4:11569]
　　done
　　This filesystem will be automatically checked every 21 mounts or
　　180 days, whichever comes first. Use tune2fs -c or -i to override.
　　[root@jzzf-db1 mapper]# mkdir /oradata
　　[root@jzzf-db1 mapper]# chown -R oracle:dba /oradata/
　　[root@jzzf-db1 mapper]# chmod -R 775 /oradata/
　　[root@jzzf-db1 mapper]# mount /dev/mapper/oradatap1 /oradata/
　　[root@jzzf-db1 mapper]# chown -R oracle:dba /oradata/
　　[root@jzzf-db1 mapper]# chmod -R 775 /oradata/
2.6、安装ORACLE及升级版本
　　1、配置ORACLE环境变量，修改/home/oracle/.bash_profile增加以下内容
　　export ORACLE_BASE=/u01/app/oracle
　　export ORACLE_HOME=$ORACLE_BASE/product/10.2.0/db_1
　　export ORACLE_SID=orcl
　　export PATH=$PATH:$ORACLE_HOME/bin
　　2、执行 . .bash_profile 生效配置
　　3、切换到ORACLE用户，su – oracle 然后进入到ORACLE10.2.01的安装目录，执行安装

　　此处如出现如下提示，直接continue继续即可，等安装补丁的时候会解决。

　　4、执行完脚本安装完毕后，使用ROOT用户替换之前修改过的redhat-release文件
　　cp /tmp/redhat-release /etc/
　　再进入到10.2.0.5的安装目录，使用ORACLE用户安装补丁

　　5、都安装完毕后，执行DBCA创建数据库实例。
　　所有文件都要放到共享存储/oradata目录下。
3、安装并配置ROSE HA双机
3.1、安装ROSE HA 9.0
　　[root@jzzf-db1 RoseHA-9.0.0-9009-RHEL6-x86_64]# ls
　　install resource.tar
　　[root@jzzf-db1 RoseHA-9.0.0-9009-RHEL6-x86_64]# ./install
　　RoseHA Installation
　　-----------------------------------
　　Version: 9.0.0 (buildno:9009)
　　1. Cluster Engine
　　2. Cluster Manager(hcc)
　　3. Cluster Command Line Interface(hcli)
　　4. Cluster User Interface for Text Window(hcuiw)
　　5. ALL
　　Q. Quit
　　Choose model(s,compart with space) you want to Install[1-4,5(def),Q]:5
　　you select 5:
　　5. ALL
　　Are you sure?[y,n(def)]:y
　　Please specify the path to install, [/opt/(def)]:
　　insatll...OK
　　Starting clusterd service: [ OK ]
　　Starting monitord service: [ OK ]
　　Starting hclid service: [ OK ]

[root@jzzf-db1 RoseHA-9.0.0-9009-RHEL6-x86_64]#

3.2、测试ROSE HA脚本
　　替换ORACLE里的TNSNAME文件及LISNTENER文件（红色斜体字根据实际情况修改）
　　TNSNAME.ORA文件替换成如下内容：
　　# tnsnames.ora Network Configuration File: /u01/app/oracle/product/10.2.0/db_1/network/admin/tnsnames.ora
　　# Generated by Oracle configuration tools.
　　EXTPROC_CONNECTION_DATA =
　　(DESCRIPTION =
　　(ADDRESS_LIST =
　　(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
　　)
　　(CONNECT_DATA =
　　(SID = PLSExtProc)
　　(PRESENTATION = RO)
　　)
　　)
　　ORA_BC =
　　(DESCRIPTION =
　　(ADDRESS_LIST =
　　(ADDRESS = (PROTOCOL = TCP)(HOST = 10.20.160.101)(PORT = 1521))
　　)
　　(CONNECT_DATA =
　　(SERVICE_NAME = ora_bc)
　　)
　　)
　　listener.ora文件替换成如下内容：
　　# listener.ora Network Configuration File: /u01/app/oracle/product/10.2.0/db_1/network/admin/listener.ora
　　# Generated by Oracle configuration tools.
　　SID_LIST_LISTENER =
　　(SID_LIST =
　　(SID_DESC =
　　(SID_NAME = PLSExtProc)
　　(ORACLE_HOME = /u01/app/oracle/product/10.2.0/db_1)
　　(PROGRAM = extproc)
　　)
　　)
　　LISTENER =
　　(DESCRIPTION_LIST =
　　(DESCRIPTION =
　　(ADDRESS = (PROTOCOL = TCP)(HOST = 10.20.160.101)(PORT = 1521))
　　(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
　　)
　　)
　　#static-set
　　SID_LIST_LISTENER =
　　(SID_LIST =
　　(SID_DESC =
　　(GLOBAL_DBNAME = ora_bc)
　　(ORACLE_HOME = /u01/app/oracle/product/10.2.0/db_1)
　　(SID_NAME = ora_bc)
　　)
　　)
　　1、手动mount文件系统到/oradata目录
　　Mount /dev/mapper/oradatap1 /oradata
　　2、手动加载子IP
　　ifconfig eth0:1 10.20.160.101 up
　　3、进入到ROSE HA目录/opt/Rose/Cluster/bin/
　　执行./ora_start.sh <实例名> LISTENER <服务名>
　　查看是否可以正常启动ORACLE实例及监听，如成功通过检查
　　4、进入到ROSE HA目录/opt/Rose/Cluster/bin/
　　执行./ag_oracle.bin <实例名> <服务名> 0
　　查看返回结果是否成功，如成功通过检查
　　5、进入到ROSE HA目录/opt/Rose/Cluster/bin/
　　执行./ora_stop.sh <实例名> LISTENER <服务名>
　　查看是否可以停止ORACLE实例及监听，如成功通过检查
3.3、配置ROSE HA数据库集群
　　Ceate cluster

　　欢迎拍砖！