企业web高可用集群实战之lvs+keepalived+mysql双主
本文出自 “瑾于外者必盈于内” 博客，请务必保留此出处http://linuxops.blog.运维网.com/2238445/932673前端用两台server做lvs+keepalived负载调度器，中间用apache+php作为web应用服务器，后端用两台做mysql高可用，用nfs、mfs或作为web文件共享服务器
系统环境：
LVS调度主服务器：192.168.8.11
LVS调度从服务器：192.168.8.12
LVS VIP：192.168.8.10
apache服务器：192.168.8.20 192.168.8.21
MySQL主服务器：192.168.8.31
MySQL从服务器：192.168.8.32
MySQL VIP：192.168.8.30
GFS：
由于工作时间比较紧，同时还要培训，架构图后期补上!!
用到软件准备：
所有服务器软件包都放在/opt 目录下，下面是下载地址：
[*]wget http://www.keepalived.org/software/keepalived-1.1.20.tar.gz
[*]wget http://downloads.mysql.com/archives/mysql-5.5/mysql-5.5.24-linux2.6-x86_64.tar.gz#64位
[*]wget http://downloads.mysql.com/archives/mysql-5.5/mysql-5.5.24-linux2.6-i686.tar.gz #32位
一、LVS+Keepalived
1.安装ipvsadm
yum -y install ipvsadm kernel-devel
ln -sv /usr/src/kernels/2.6.18-308.8.2.el5-x86_64/ /usr/src/linux
2.安装keepalived
[*]cd /opt/
[*]tar zxf keepalived-1.1.20.tar.gz
[*]cd keepalived-1.1.20
[*]./configure --prefix=/usr/local/keepalived --with-kernel-dir=/usr/src/kernels/2.6.18-308.11.1.el5-x86_64/
[*]
[*]出现如下信息内核加载成功：
[*]Keepalived configuration
[*]------------------------
[*]Keepalived version : 1.2.0
[*]Compiler : gcc
[*]Compiler flags : -g -O2
[*]Extra Lib : -lpopt -lssl -lcrypto
[*]Use IPVS Framework : Yes
[*]IPVS sync daemon support : Yes
[*]Use VRRP Framework : Yes
[*]Use Debug flags : No
[*]make;make install
[*]cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/rc.d/init.d
[*]cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
[*]mkdir /etc/keepalived
[*]chkconfig keepalived on
3.创建配置文件
[*]cat /etc/keepalived/keepalived.conf
[*]
[*]! Configuration File for keepalived
[*]
[*]global_defs {
[*] notification_email {
[*] 250621008@qq.com
[*] }
[*] notification_email_from 250621008@qq.com
[*] smtp_server smtp.163.com
[*]#smtp_connect_timeout 30
[*] router_id LVS_DEVEL
[*]}
[*]
[*]vrrp_instance VI_1 {
[*] state MASTER #备份服务器上将MASTER改为BACKUP
[*] interface eth0
[*] lvs_sync_daemon_inteface eth0
[*] virtual_router_id 51
[*] priority 100 #备份服务上将100改为低于100的数值
[*] advert_int 5
[*] authentication {
[*] auth_type PASS
[*] auth_pass 1111
[*] }
[*] virtual_ipaddress {
[*] 192.168.8.10
[*] }
[*]}
[*]
[*]virtual_server 192.168.8.10 80 {
[*] delay_loop 6 #(每隔10秒查询realserver状态)
[*] lb_algo wlc #(lvs 算法)
[*] lb_kind DR #(Direct Route)
[*] persistence_timeout 60 #(同一IP的连接60秒内被分配到同一台realserver)
[*] protocol TCP #(用TCP协议检查realserver状态)
[*]
[*] real_server 192.168.8.10 80 {
[*] weight 100 #(权重)
[*] TCP_CHECK {
[*] connect_timeout 10 #(10秒无响应超时)
[*] nb_get_retry 3
[*] delay_before_retry 3
[*] connect_port 80
[*] }
[*] }
[*] real_server 192.168.8.12 80 {
[*] weight 100
[*] TCP_CHECK {
[*] connect_timeout 10
[*] nb_get_retry 3
[*] delay_before_retry 3
[*] connect_port 80
[*] }
[*] }
[*]}
PS :从配置文件参考以上主的配置文件，不同的地方是红色标注两处！
二、WEB集群
1、这里可以选择lamp、lnmp、lanmp等web架构，至于搭建略！
2、在各web节点上创建realserver脚本
[*]cat /root/sh/lvs_real.sh
[*]#!/bin/bash
[*]#Description: Config realserver script
[*]#Written by : opsren----http://linuxops.blog.运维网.com
[*]SNS_VIP=192.168.8.10
[*]/etc/rc.d/init.d/functions
[*]
[*]case "$1" in
[*]start)
[*] /sbin/ifconfig lo:0 $SNS_VIP netmask 255.255.255.255 broadcast $SNS_VIP
[*] /sbin/route add -host $SNS_VIP dev lo:0
[*] echo "1" >/proc/sys/net/ipv4/conf/lo/arp_ignore
[*] echo "2" >/proc/sys/net/ipv4/conf/lo/arp_announce
[*] echo "1" >/proc/sys/net/ipv4/conf/all/arp_ignore
[*] echo "2" >/proc/sys/net/ipv4/conf/all/arp_announce
[*] sysctl -p >/dev/null 2>&1
[*] echo "RealServer Start OK"
[*]
[*] ;;
[*]stop)
[*] /sbin/ifconfig lo:0 down
[*] /sbin/route del $SNS_VIP >/dev/null 2>&1
[*] echo "0" >/proc/sys/net/ipv4/conf/lo/arp_ignore
[*] echo "0" >/proc/sys/net/ipv4/conf/lo/arp_announce
[*] echo "0" >/proc/sys/net/ipv4/conf/all/arp_ignore
[*] echo "0" >/proc/sys/net/ipv4/conf/all/arp_announce
[*] echo "RealServer Stoped"
[*] ;;
[*]*)
[*] echo "Usage: $0 {start|stop}"
[*] exit 1
[*]esac
[*]
[*]exit 0
[*]
[*]给予可执行权限：
[*]chmod +755 /roo/sh/lvs_real.sh
[*]
[*]启动脚本：
[*]/root/sh/lvs_real.sh start
三、MySQL高可用（双主）部署
1.MySQL安装与配置
这里采用mysql5.5.24二进制tar包
tar zxf mysql-5.5.24-linux2.6-x86_64.tar.gz -C /usr/local/mysql5.5
设置配置文件：
[*]cat >> /etc/my.cnf
[*]#max-relay-log-size = 128M
[*]#skip-slave-start
[*]#replicate-same-server-id=0
[*]#log_slave_update
[*]#replicate-do-db=WATCDB01
[*]#replicate-do-db=WATCDB02
[*]#replicate-do-db=WATCDB03
[*]#replicate-do-db=WATCDB04
[*]
[*]
[*]wait_timeout=100
[*]interactive_timeout = 100
[*]##Add for debug,record all the sql
[*]##log = /usr/local/mysql/fetiondata/data/g_log.log
[*]##innodb_status_file = 1
[*]#
[*]#tmpdir = /tmp
[*]tmpdir = /data/mysql-5.5/tmp
[*]
[*]
[*]tmp_table_size = 32M
[*]max_heap_table_size = 64M
[*]
[*]thread_cache_size = 64
[*]thread_concurrency = 32
[*]thread_stack = 192K
[*]
[*]max_allowed_packet = 16M
[*]
[*]sort_buffer_size = 512k
[*]join_buffer_size = 512k
[*]query_cache_size = 0
[*]query_cache_limit = 2M
[*]key_buffer_size = 64M
[*]read_buffer_size = 512k
[*]read_rnd_buffer_size = 512k
[*]bulk_insert_buffer_size = 32M
[*]
[*]binlog_format = mixed
[*]#binlog_cache_size = 1M
[*]#log-bin = /data/mysql-5.5/logs/mysql-bin
[*]max_binlog_size = 128M
[*]
[*]#log_long_format
[*]slow-query-log
[*]slow-query-log-file = mysql.slow
[*]
[*]#log_queries_not_using_indexes = 0
[*]long_query_time = 1
[*]
[*]myisam_sort_buffer_size = 32M
[*]myisam_max_sort_file_size = 10G
[*]#myisam_max_extra_sort_file_size = 10G
[*]myisam_repair_threads = 1
[*]myisam_recover
[*]
[*]log_error = /data/mysql-5.5/logs/error.log
[*]
[*]
[*]# READ-UNCOMMITTED, READ-COMMITTED, REPEATABLE-READ, SERIALIZABLE
[*]#default#transaction_isolation = REPEATABLE-READ
[*]transaction_isolation = READ-COMMITTED
[*]
[*]#innodb_checksums = 0
[*]#innodb_doublewrite = 0
[*]innodb_flush_method = O_DIRECT
[*]
[*]#96G
[*]innodb_buffer_pool_size = 48G
[*]#innodb_buffer_pool_size = 60G
[*]#innodb_buffer_pool_instances = 10
[*]innodb_buffer_pool_instances = 4
[*]
[*]#innodb_buffer_pool_size = 33G
[*]innodb_additional_mem_pool_size = 16M
[*]
[*]innodb_data_home_dir =
[*]#innodb_data_file_path = ibdata1:20G;ibdata2:20G;ibdata3:20G;ibdata4:20G;ibdata5:20G;ibdata6:20G;ibdata7:20G;ibdata8:100M:autoextend
[*]innodb_data_file_path= ibdata1:2048M:autoextend
[*]
[*]innodb_log_group_home_dir= /data/mysql-5.5/logs
[*]innodb_log_buffer_size = 16M
[*]innodb_log_file_size = 1024M
[*]innodb_log_files_in_group = 3
[*]
[*]innodb_thread_concurrency = 288
[*]innodb_thread_sleep_delay = 500
[*]#innodb_file_io_threads = 8
[*]innodb_concurrency_tickets = 1000
[*]
[*]innodb_sync_spin_loops=40
[*]
[*]##innodb_force_recovery is only used for recovery mode;
[*]##innodb_force_recovery = 3
[*]
[*]
[*]innodb_flush_log_at_trx_commit= 0
[*]innodb_max_dirty_pages_pct = 90
[*]#innodb_lock_wait_timeout = 120
[*]innodb_lock_wait_timeout = 10
[*]innodb_support_xa = 0
[*]
[*]#Added to allow create function
[*]log_bin_trust_function_creators = 1
[*]
[*]
[*]innodb_file_per_table = 1
[*]
[*]#turn
[*]innodb_stats_on_metadata=0
[*]innodb_old_blocks_pct=20
[*]innodb_change_buffering=all
[*]#innodb_max_purge_lag
[*]innodb_purge_threads=1
[*]innodb_purge_batch_size = 32
[*]
[*]
[*]
[*]innodb_read_io_threads = 8
[*]innodb_write_io_threads = 8
[*]innodb_io_capacity = 2000
[*]
[*]innodb_file_format = Barracuda
[*]
[*]#manage
[*]performance_schema
[*]performance_schema_events_waits_history_size=100
[*]performance_schema_events_waits_history_long_size=30000
[*]
[*]#innodb_strict_mode=1
[*]
[*]
[*]quick
[*]max_allowed_packet = 128M
[*]
[*]
[*]no-auto-rehash
[*]
[*]
[*]interactive-timeout
[*]
[*]
[*]open-files-limit = 28192
[*]EOF
注意两点：
1).在两台MySQL服务器上开启bin-log日志，默认是开启的！
2).另外一台服务器节点的server-id设置为20，本来设置为10
2.将31服务器设置32的主服务器
在31服务器上建立授权用户！
[*]mysql> grant replication slave on *.* to 'rep'@'%'>
[*]Query OK, 0 rows affected (0.09 sec)
[*]
[*]mysql> flush privileges;
[*]Query OK, 0 rows affected (0.09 sec)
[*]
[*]mysql> show master status;
[*]+---------------+----------+--------------+------------------+
[*]| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
[*]+---------------+----------+--------------+------------------+
[*]| binlog.000004 | 138637 | | |
[*]+---------------+----------+--------------+------------------+
[*]1 row in set (0.03 sec)
[*]
[*]在32服务器上把31服务器设为自己的主服务器，mysql客户端连接到32服务器：
[*]mysql> change master tomaster_host='192.168.8.31',master_user='rep',master_password='rep',master_log_file='binlog.000004',master_log_pos=138637;
[*]Query OK, 0 rows affected (0.01 sec)
[*]
[*]mysql> start slave;
[*]Query OK, 0 rows affected (0.00 sec)
[*]
[*]mysql> show slave status\G
[*]*************************** 1. row ***************************
[*] Slave_IO_State: Waiting for master to send event
[*] Master_Host: 192.168.8.31
[*] Master_User: rep
[*] Master_Port: 3306
[*] Connect_Retry: 60
[*] Master_Log_File: binlog.000004
[*] Read_Master_Log_Pos: 138637
[*] >
[*] >
[*] >
[*] Slave_IO_Running: Yes
[*] Slave_SQL_Running: Yes
[*] Replicate_Do_DB:
[*] Replicate_Ignore_DB: mysql,test,information_schema
[*] Replicate_Do_Table:
[*] Replicate_Ignore_Table:
[*] Replicate_Wild_Do_Table:
[*]Replicate_Wild_Ignore_Table:
[*] Last_Errno: 0
[*] Last_Error:
[*] Skip_Counter: 0
[*] Exec_Master_Log_Pos: 138637
[*] >
[*] Until_Condition: None
[*] Until_Log_File:
[*] Until_Log_Pos: 0
[*] Master_SSL_Allowed: No
[*] Master_SSL_CA_File:
[*] Master_SSL_CA_Path:
[*] Master_SSL_Cert:
[*] Master_SSL_Cipher:
[*] Master_SSL_Key:
[*] Seconds_Behind_Master: 0
[*]Master_SSL_Verify_Server_Cert: No
[*] Last_IO_Errno: 0
[*] Last_IO_Error:
[*] Last_SQL_Errno: 0
[*] Last_SQL_Error:
[*]Replicate_Ignore_Server_Ids:
[*] Master_Server_Id: 1
[*]1 row in set (0.00 sec)
PS:
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
两处都为YES，表示OK！
3.将32服务器设置31的主服务器
在32服务器上建立授权用户：
[*]mysql> grant replication slave on *.* to 'rep'@'%'>
[*]Query OK, 0 rows affected (0.03 sec)
[*]
[*]mysql> flush privileges;
[*]Query OK, 0 rows affected (0.00 sec)
[*]
[*]mysql> show master status;
[*]+---------------+----------+--------------+------------------+
[*]| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
[*]+---------------+----------+--------------+------------------+
[*]| binlog.000004 | 320 | | |
[*]+---------------+----------+--------------+------------------+
[*]1 row in set (0.00 sec)
[*]
[*]在31服务器上把32服务器设为自己的主服务器，mysql客户端连接到31服务器：
[*]mysql> change master tomaster_host='192.168.8.32',master_user='rep',master_password='rep',master_log_file='binlog.000004',master_log_pos=320;
[*]ERROR 2006 (HY000): MySQL server has gone away
[*]No connection. Trying to reconnect...
[*]Connection>
[*]Current database: *** NONE ***
[*]
[*]Query OK, 0 rows affected (0.07 sec)
[*]
[*]mysql> start slave;
[*]Query OK, 0 rows affected (0.03 sec)
[*]
[*]mysql> show slave status\G
[*]*************************** 1. row ***************************
[*] Slave_IO_State: Waiting for master to send event
[*] Master_Host: 192.168.8.32
[*] Master_User: rep
[*] Master_Port: 3306
[*] Connect_Retry: 60
[*] Master_Log_File: binlog.000004
[*] Read_Master_Log_Pos: 320
[*] >
[*] >
[*] >
[*] Slave_IO_Running: Yes
[*] Slave_SQL_Running: Yes
[*] Replicate_Do_DB:
[*] Replicate_Ignore_DB: mysql,test,information_schema
[*] Replicate_Do_Table:
[*] Replicate_Ignore_Table:
[*] Replicate_Wild_Do_Table:
[*]Replicate_Wild_Ignore_Table:
[*] Last_Errno: 0
[*] Last_Error:
[*] Skip_Counter: 0
[*] Exec_Master_Log_Pos: 320
[*] >
[*] Until_Condition: None
[*] Until_Log_File:
[*] Until_Log_Pos: 0
[*] Master_SSL_Allowed: No
[*] Master_SSL_CA_File:
[*] Master_SSL_CA_Path:
[*] Master_SSL_Cert:
[*] Master_SSL_Cipher:
[*] Master_SSL_Key:
[*] Seconds_Behind_Master: 0
[*]Master_SSL_Verify_Server_Cert: No
[*] Last_IO_Errno: 0
[*] Last_IO_Error:
[*] Last_SQL_Errno: 0
[*] Last_SQL_Error:
[*]Replicate_Ignore_Server_Ids:
[*] Master_Server_Id: 2
[*]1 row in set (0.00 sec)
4.主主同步测试
先在31服务器上建个库：
[*]mysql> create database t_test;
[*]Query OK, 1 row affected (0.03 sec)
[*]
[*]mysql> show databases;
[*]+--------------------+
[*]| Database |
[*]+--------------------+
[*]| information_schema |
[*]| mysql |
[*]| performance_schema |
[*]| t_test |
[*]| test |
[*]+--------------------+
[*]5 rows in set (0.00 sec)
[*]
[*]再到32服务器查询是否同步过来这个库：
[*]mysql> show databases;
[*]+--------------------+
[*]| Database |
[*]+--------------------+
[*]| information_schema |
[*]| bbs |
[*]| mysql |
[*]| performance_schema |
[*]| t_test |
[*]| test |
[*]+--------------------+
[*]6 rows in set (0.00 sec)
[*]
[*]可以看到同步过来了！
[*]反过来一样！这步略！
[*]
[*]5.keepalived安装配置
[*]yum -y install kernel-devel ipvsadm
[*]ln -sv /usr/src/kernels/2.6.18-308.8.2.el5-x86_64/ /usr/src/linux
[*]cd /opt
[*]tar zxf keepalived-1.1.20.tar.gz
[*]cd keepalived-1.1.20
[*]./configure --prefix=/usr/local/keepalived --with-kernel-dir=/usr/src/kernels/2.6.18-308.11.1.el5-x86_64/
[*]make;make install
[*]cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/rc.d/init.d
[*]cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
[*]mkdir /etc/keepalived
[*]chkconfig keepalived on
[*]
[*]创建配置文件：
[*]主服务器：
[*]cat /etc/keepalived/keepalived.conf
[*]
[*]! Configuration File for keepalived
[*]
[*]global_defs {
[*] notification_email {
[*] 250621008@qq.com
[*] }
[*] notification_email_from 250621008@qq.com
[*] smtp_server 127.0.0.1
[*] smtp_connect_timeout 30
[*] router_id mysql-ha
[*]}
[*]
[*]vrrp_instance VI_1 {
[*] state BACKUP
[*] interface eth0
[*] virtual_router_id 51
[*] priority 100
[*] advert_int 1
[*] nopreempt #不抢占,只在priority高的节点上设置
[*] authentication {
[*] auth_type PASS
[*] auth_pass 1111
[*] }
[*] virtual_ipaddress {
[*] 192.168.8.30
[*] }
[*]}
[*]
[*]virtual_server 192.168.8.30 3306 {
[*] delay_loop 2
[*] lb_algo wrr
[*] lb_kind DR
[*] persistence_timeout 60
[*] protocol TCP
[*]
[*] real_server 192.168.8.31 3306
[*] weight 3
[*] notify_down /root/sh/mysql.sh
[*] TCP_CHECK {
[*] connect_timeout 10
[*] nb_get_retry 3
[*] delay_before_retry 3
[*] connect_port 3306
[*] }
[*] }
[*]}
[*]
[*]++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
[*]
[*]从服务器：
[*]cat /etc/keepalived/keepalived.conf
[*]
[*]! Configuration File for keepalived
[*]
[*]global_defs {
[*] notification_email {
[*] 250621008@qq.com
[*] }
[*] notification_email_from 250621008@qq.com
[*] smtp_server 127.0.0.1
[*] smtp_connect_timeout 30
[*] router_id mysql-ha
[*]}
[*]
[*]vrrp_instance VI_1 {
[*] state BACKUP
[*] interface eth0
[*] virtual_router_id 51
[*] priority 90
[*] advert_int 1
[*] authentication {
[*] auth_type PASS
[*] auth_pass 1111
[*] }
[*] virtual_ipaddress {
[*] 192.168.8.30
[*] }
[*]}
[*]
[*]virtual_server 192.168.8.30 3306 {
[*] delay_loop 2
[*] lb_algo wrr
[*] lb_kind DR
[*] persistence_timeout 60
[*] protocol TCP
[*]
[*] real_server 192.168.8.32 3306
[*] weight 3
[*] notify_down /root/sh/mysql.sh
[*] TCP_CHECK {
[*] connect_timeout 10
[*] nb_get_retry 3
[*] delay_before_retry 3
[*] connect_port 3306
[*] }
[*] }
[*]}
主备配置文件注意几点：
1).router_id 两边必须相同
2).state 两边都为BACKUP
3).virtual_router_id 两边必须相同
4).priority 主节点的值必须大于从节点的值
5).nopreempt 不抢占，只在priority高的节点（即主节点）上设置
6).real_server 只需要本机的IP，不需要其它节点的！
7).notify_down 作用是监测到当mysql停止工作时自动关闭本机的keepalived的脚本，实现故障转移！
在主从上都创建当mysql停止工作时自动关闭本机的keepalived的脚本：
[*]cat /root/sh/mysql.sh
[*]#!/bin/bash
[*]
[*]MYSQL=/usr/local/mysql/bin/mysql
[*]MYSQL_HOST=localhost
[*]MYSQL_USER=root
[*]MYSQL_PASSWORD="admin"
[*]
[*]CHECK_TIME=3
[*]
[*]#mysql is working MYSQL_OK is 0 , mysql down MYSQL_OK is 1
[*]MYSQL_OK=1
[*]
[*]function check_mysql_helth (){
[*]$MYSQL -h $MYSQL_HOST -u $MYSQL_USER -p $MYSQL_PASSWORD -e "show status;" > /dev/null 2>&1
[*]if [ $? = 0 ] ;then
[*]MYSQL_OK=0
[*]else
[*]MYSQL_OK=1
[*]fi
[*]return $MYSQL_OK
[*]}
[*]
[*]while [ $CHECK_TIME -ne 0 ]
[*]do
[*]let "CHECK_TIME -= 1"
[*]
[*]check_mysql_helth
[*]
[*]if [ $MYSQL_OK = 0 ] ; then
[*]CHECK_TIME=0
[*]exit 0
[*]fi
[*]
[*]if [ $MYSQL_OK -eq 1 ] && [ $CHECK_TIME -eq 1 ]
[*]then
[*] /etc/init.d/keepalived stop
[*]exit 1
[*]fi
[*]
[*]sleep 1
[*]
[*]done
6.故障转移测试
分别启动主备节点的keepalived服务，然后在主节点查看VIP有没有启动：
[*]31服务器：
[*]# ip a |grep eth0
[*]2: eth0:mtu 1500 qdisc pfifo_fast qlen 1000
[*] inet 192.168.8.31/24 brd 192.168.8.255 scope global eth0
[*] inet 192.168.8.30/32 scope global eth0
[*]
[*]32服务器：
[*]# ip a |grep eth0
[*]2: eth0:mtu 1500 qdisc pfifo_fast qlen 1000
[*] inet 192.168.8.32/24 brd 192.168.8.255 scope global eth0
[*]
[*]现在把31服务器的mysql服务停掉：
[*]# ip a
[*]1: lo:mtu 16436 qdisc noqueue
[*] link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
[*] inet 127.0.0.1/8 scope host lo
[*]2: eth0:mtu 1500 qdisc pfifo_fast qlen 1000
[*] link/ether 00:0c:29:d4:fd:b3 brd ff:ff:ff:ff:ff:ff
[*] inet 192.168.8.31/24 brd 192.168.8.255 scope global eth0
[*] inet 192.168.8.30/32 scope global eth0
[*]# service mysqld stop
[*]Shutting down MySQL.
[*]# service keepalived status
[*]keepalived is stopped
[*]#
可以看到mysql服务停掉后，keepalived服务也马上停掉了!
再到32节点上查看下VIP有没有接管：
# ip a
1: lo:mtu 16436 qdisc noqueue
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
2: eth0:mtu 1500 qdisc pfifo_fast qlen 1000
link/ether 00:0c:29:e3:dd:5a brd ff:ff:ff:ff:ff:ff
inet 192.168.8.32/24 brd 192.168.8.255 scope global eth0
inet 192.168.8.30/32 scope global eth0
可以看到接管过来了！
四、存储部分
请参考笔者的相关文章：
http://linuxops.blog.运维网.com/2238445/895945 --mfs分布式存储
http://linuxops.blog.运维网.com/2238445/899652 --第五部分：NFS高可用web存储部署
页:
[1]