centos6.5安装mysql cluster问题求助

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mysql ndbcluster 安装

1.数据库规划：
操作系统 centos 6.3
ndbcluster 版本：MySQL-Cluster-gpl-7.4.8-1.el6.x86_
2个管理节点、2个sql节点、2个数据节点（管理节点和sql节点放在同一台服务器上）
如下：
管理节点1 192.168.1.17
管理节点2 192.168.1.18

sql节点1 192.168.1.17
sql节点2 192.168.1.18
ndbd 节点1 192.168.1.19
ndbd 节点2 192.168.1.20

2.操作系统设置：
设置服务主机名称
关闭selinux和防火墙
设置内核参数和最大进程数

下载mysql集群
MySQL-Cluster-gpl-7.4.8-1.el6.x86_.rpm-bundle.tar
上传到服务器的相应目录下如 /home/mysqlinstall

3.安装管理节点和sql节点：
To check if your system has any RPM version of any MySQL package currently installed, run:
shell> rpm -qa | grep -i mysql
检查
[root@redis1 ~]# rpm -qa | grep -i mysql
mysql-libs-5.1.61-4.el6.x86_
如果有删除
shell> rpm -e mysql-libs-5.1.61-4.el6.x86_
删除报错：
[root@redis1 ~]# rpm -e mysql-libs-5.1.61-4.el6.x86_
error: Failed dependencies:
libmysqlclient.so.16()(bit) is needed by (installed) postfix-2:2.6.6-2.2.el6_1.x86_
libmysqlclient.so.16(libmysqlclient_16)(bit) is needed by (installed) postfix-2:2.6.6-2.2.el6_1.x86_
mysql-libs is needed by (installed) postfix-2:2.6.6-2.2.el6_1.x86_
[root@redis1 ~]#
解决：
[root@redis1 ~]# rpm -e --nodeps mysql-libs-5.1.61-4.el6.x86_
[root@redis1 ~]#

[root@ndbcluster1 mysqlinstall]# rpm -ivh MySQL-Cluster-server-gpl-7.4.8-1.el6.x86_.rpm
[root@ndbcluster1 mysqlinstall]# rpm -ivh MySQL-Cluster-server-gpl-7.4.8-1.el6.x86_.rpm

4.安装数据节点：
执行上面步骤
[root@ndb mysqlinstall]# rpm -ivh MySQL-Cluster-server-gpl-7.4.8-1.el6.x86_.rpm
[root@ndb mysqlinstall]# rpm -ivh MySQL-Cluster-server-gpl-7.4.8-1.el6.x86_.rpm

5.配置集群
管理节点建立目录
mkdir /var/lib/mysql-cluster
mkdir -p /data/mysql/ndbdata

5.启动关闭集群：
启动管理节点
ndb_mgmd -f /var/lib/mysql-cluster/config.ini --initial (第一次启动加--initial修改了配置文件后的启动)

启动数据节点
ndbmtd --initial

启动sql节点
service mysql start

查看集群状态
shell> ndb_mgm -e "SHOW"

关闭管理节点和数据节点
ndb_mgm -e shutdown
关闭sql节点
service mysql stop

安装遇到的问题：
1.权限问题启动mysql报错
[root@sqlmgm2 mysql]# service mysql start
Starting MySQL..The server quit without updating PID file ([FAILED]sql/sqlmgm2.pid).
[root@sqlmgm2 mysql]#

[root@sqlmgm2 mysql]# ll
total 1104
-rw-rw---- 1 mysql mysql 56 Dec 14 17:13 auto.cnf
-rw-rw---- 1 mysql mysql 12582912 Dec 14 17:39 ibdata1
-rw-rw---- 1 mysql mysql 503318 Dec 14 17:40 ib_logfile0
-rw-rw---- 1 mysql mysql 503318 Dec 14 17:13 ib_logfile1
drwx------ 2 mysql mysql 4096 Dec 14 17:39 mysql
drwx------ 2 root root 4096 Dec 14 17:39 ndbinfo
drwx------ 2 root root 4096 Dec 14 17:39 performance_schema
-rw-r----- 1 mysql mysql 30068 Dec 14 17:40 sqlmgm2.err
drwx------ 2 root root 4096 Dec 14 17:33 test
[root@sqlmgm2 mysql]# chown mysql:mysql -R mysql
[root@sqlmgm2 mysql]# service mysql start
Starting MySQL.. [ OK ]
[root@sqlmgm2 mysql]#

2.安装rpm包时，报包依赖关系如下：
[root@ndbcluster2 mysqlinstall]# rpm -ivh MySQL-Cluster-server-gpl-7.4.8-1.el6.x86_.rpm
warning: MySQL-Cluster-server-gpl-7.4.8-1.el6.x86_.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
error: Failed dependencies:
libnuma.so.1()(bit) is needed by MySQL-Cluster-server-gpl-7.4.8-1.el6.x86_
libnuma.so.1(libnuma_1.1)(bit) is needed by MySQL-Cluster-server-gpl-7.4.8-1.el6.x86_
libnuma.so.1(libnuma_1.2)(bit) is needed by MySQL-Cluster-server-gpl-7.4.8-1.el6.x86_
解决方法是把安装的依赖的包
[root@ndbcluster2 mysqlinstall]# yum install numactl
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
* base: mirrors.163.com
* extras: mirrors.opencas.cn
* updates: mirrors.opencas.cn
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package numactl.x86_ 0:2.0.9-2.el6 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
==============================================================================================================================
Package Arch Version Repository Size
==============================================================================================================================
Installing:
numactl x86_ 2.0.9-2.el6 base 74 k
Transaction Summary
==============================================================================================================================
Install 1 Package(s)
Total download size: 74 k
Installed size: 171 k
Is this ok [y/N]: y
Downloading Packages:
numactl-2.0.9-2.el6.x86_.rpm | 74 kB 00:00
warning: rpmts_HdrFromFdno: Header V3 RSA/SHA1 Signature, key ID c105b9de: NOKEY
Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
Importing GPG key 0xC105B9DE:
Userid : CentOS-6 Key (CentOS 6 Official Signing Key) <centos-6-key@centos.org>
Package: centos-release-6-3.el6.centos.9.x86_ (@anaconda-CentOS-201207061011.x86_/6.3)
From : /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
Is this ok [y/N]: y
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : numactl-2.0.9-2.el6.x86_ 1/1
Verifying : numactl-2.0.9-2.el6.x86_ 1/1
Installed:
numactl.x86_ 0:2.0.9-2.el6
Complete!

3.启动数据库节点无法和管理节点相连
原因由于防火墙和selinux没有关闭
解决关闭防火墙和selinux
一、关闭防火墙
1、重启后永久性生效：
开启：chkconfig iptables on
关闭：chkconfig iptables off
2、即时生效，重启后失效：
开启：service iptables start
关闭：service iptables stop
二、关闭SELinux
vim /etc/selinux/config # 改为 SELINUX=disabled
# 保存退出，重启服务器
init 6
禁用SeLinux
#永久禁用，需要重启生效。
sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config
# 临时禁用，不需要重启
setenforce 0

4.root用户不能登录
[root@ndbcluster2 ~]# mysql -uroot -p
Enter password:
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
[root@ndbcluster2 ~]# mysql -uroot -p
Enter password:
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)

设置--skip-grant-tables跳过授权表认证
service mysqld stop
在配置文件中添加--skip-grant-tables（/etc/my.cnf）
service mysqld start
另外开个SSH连接
[root@localhost ~]# mysql
mysql>use mysql
mysql>update user set password=password("123456") where user="root";
mysql>flush privileges;
mysql>exit
去掉--skip-grant-tables重启mysql,root用户可以用设置的密码登录

设置root用户远程登录
GRANT ALL PRIVILEGES ON *.* TO root@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;
执行报如下错误，ERROR 1820 (HY000): You must SET PASSWORD before executing this statement
[root@ndbcluster1 ~]# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.6.27-ndb-7.4.8-cluster-gpl
Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
mysql>
mysql> GRANT ALL PRIVILEGES ON *.* TO root@"%" IDENTIFIED BY 'root' WITH GRANT OPTION;
ERROR 1820 (HY000): You must SET PASSWORD before executing this statement
mysql> GRANT ALL PRIVILEGES ON *.* TO root@"%" IDENTIFIED BY 'root001' WITH GRANT OPTION;
ERROR 1820 (HY000): You must SET PASSWORD before executing this statement

执行SET PASSWORD修改成功
mysql> SET PASSWORD = PASSWORD('root001');
Query OK, 0 rows affected (0.02 sec)
mysql> GRANT ALL PRIVILEGES ON *.* TO root@"%" IDENTIFIED BY 'root' WITH GRANT OPTION;
Query OK, 0 rows affected (0.02 sec)
mysql>
FLUSH PRIVILEGES;

执行完成
远程连接测试，mysql集群节点，发现一个节点可以连接，一个节点不能连接
这个问题纠结很久
原因上面的操作，没有在另外一个节点上执行导致的，mysql集群的用户认证是分开管理的，要两个节点都要执行
索引以后创建用户要两个节点都执行

5.配置两个管理节点时show报错Could not get configuration
[root@ndbcluster2 mysql-cluster]# ndb_mgm
-- NDB Cluster -- Management Client --
ndb_mgm> show
Connected to Management Server at: 192.168.1.17:1186
ERROR Message: The cluster configuration is not yet confirmed by all defined management servers. This management server is still waiting for node 6 to connect.
Could not get configuration
* 4012: Failed to get configuration
* The cluster configuration is not yet confirmed by all defined management servers. This management server is still waiting for node 6 to connect.
ndb_mgm> show
Cluster Configuration
---------------------
[ndbd(NDB)] 2 node(s)
id=2 (not connected, accepting connect from 192.168.1.18)
id=3 (not connected, accepting connect from 192.168.1.17)
[ndb_mgmd(MGM)] 2 node(s)
id=1 @192.168.1.17 (mysql-5.6.27 ndb-7.4.8)
id=6 @192.168.1.18 (mysql-5.6.27 ndb-7.4.8)
[mysqld(API)] 2 node(s)
id=4 (not connected, accepting connect from 192.168.1.17)
id=5 (not connected, accepting connect from 192.168.1.18)
两个管理节点同时都启动起来，才能看到状态
ndb_mgm> show
Cluster Configuration
---------------------
[ndbd(NDB)] 2 node(s)
id=2 @192.168.1.18 (mysql-5.6.27 ndb-7.4.8, Nodegroup: 0, *)
id=3 @192.168.1.17 (mysql-5.6.27 ndb-7.4.8, Nodegroup: 0)
[ndb_mgmd(MGM)] 2 node(s)
id=1 @192.168.1.17 (mysql-5.6.27 ndb-7.4.8)
id=6 @192.168.1.18 (mysql-5.6.27 ndb-7.4.8)
[mysqld(API)] 2 node(s)
id=4 @192.168.1.17 (mysql-5.6.27 ndb-7.4.8)
id=5 @192.168.1.18 (mysql-5.6.27 ndb-7.4.8)