mysql-mha搭建问题

a65751844

各位大神帮忙看下：
我测试**安装的mysql-mha
os：Red Hat Enterprise Linux Server release 5.5   
mysql version: 5.5.21
3台机器
m1 主
slave  （从）
salve2 （从）
3台机器的主从已经搭建完成，已经在3台机器上安装完 mha-node ，并在m1机器上安装了mha-manage

[root@m1 mha4mysql-manager-0.55]# cat /etc/app1.cnf
[server default]
manager_workdir=/masterha/app1  
manager_log=/masterha/app1/manager.log  
user=root
password=123
ssh_user=root
repl_user=rep
repl_password=rep
ping_interval=1
shutdown_script=""
report_script=""
master_ip_failover_script=/usr/local/bin/master_ip_failover
master_ip_online_change_script=/usr/local/bin/master_ip_online_change_script
[server1]
hostname=192.168.92.100
candidate_master=1

[server2]
hostname=192.168.92.102
candidate_master=1

[server3]
hostname=192.168.92.103
candidate_master=1

在m1上 （已经做了mysql上面root授权和系统ssh互信任并且手动测试没问题）出现如下错误
masterha_check_ssh --conf=/etc/app1.cnf
Wed Mar  5 20:16:26 2014 - [warning] Global configuration file /etc/masterha_default.cnf not found. Skipping.
Wed Mar  5 20:16:26 2014 - [info] Reading application default configurations from /etc/app1.cnf..
Undefined subroutine &MHA::NodeUtil::escape_for_shell called at /usr/lib/perl5/site_perl/5.8.8/MHA/Config.pm line 291.

补充下：/usr/lib/perl5/site_perl/5.8.8/MHA/Config.pm line 291附近的内容为：
287   # set escaped_user and escaped_password
    288   foreach my $key ( 'user', 'password' ) {
    289     my $new_key = "escaped_" . $key;
    290     if ( $server->{$key} ) {
    291       $server->{$new_key} = MHA::NodeUtil::escape_for_shell( $server->{$        key} );
    292     }
    293     else {
    294       $server->{$new_key} = "";
    295     }
    296   }
    297   return $server;
    298 }
请各位大神给分析下那里有问题？跪谢

meridian-line

注释server3 的candidate_master试试

天下第一菜

看/masterha/app1/manager.log 报错

pxf520

mha magager最好不要装在mysql节点上，要独立出来。

Ze7czm

楼主，你好。我也遇到类似的问题。
[error][/usr/lib/perl5/vendor_perl/MHA/MasterMonitor.pm, ln315] Error happend on checking configurations. Can't exec "/usr/local/bin/master_ip_failover": Permission denied at /usr/lib/perl5/vendor_perl/MHA/ManagerUtil.pm line 68.
提示的68行内容： return MHA::NodeUtil::system_rc( system($cmd) );
这个是加了脚本master_ip_failover导致的，不用这个脚本就没有错误。请问你解决了吗？

Ze7czm

为什么在managerUtil.pm中执行return MHA::NodeUtil::system_rc( system($cmd) );没有权限呢？？？是脚本的问题还是其他原因呢
我的master_ip_failover脚本代码如下，是从网上找的，只改了vip

1. #!/usr/bin/env perl
   
2. use strict;
   
3. use warnings FATAL => 'all';
   
4. 
   
5. use Getopt::Long;
   
6. 
   
7. my (
   
8.     $command,          $ssh_user,        $orig_master_host, $orig_master_ip,
   
9.     $orig_master_port, $new_master_host, $new_master_ip,    $new_master_port
   
10. );
    
11. 
    
12. # my $vip = '172.16.21.119/24';  # Virtual IP
    
13. my $vip = '192.168.1.250/24';  # Virtual IP
    
14. my $key = "1";
    
15. my $ssh_start_vip = "/sbin/ifconfig eth0:$key $vip";
    
16. my $ssh_stop_vip = "/sbin/ifconfig eth0:$key down";
    
17. 
    
18. GetOptions(
    
19.     'command=s'          => \$command,
    
20.     'ssh_user=s'         => \$ssh_user,
    
21.     'orig_master_host=s' => \$orig_master_host,
    
22.     'orig_master_ip=s'   => \$orig_master_ip,
    
23.     'orig_master_port=i' => \$orig_master_port,
    
24.     'new_master_host=s'  => \$new_master_host,
    
25.     'new_master_ip=s'    => \$new_master_ip,
    
26.     'new_master_port=i'  => \$new_master_port,
    
27. );
    
28. 
    
29. exit &main();
    
30. 
    
31. sub main {
    
32. 
    
33.     print "\n\nIN SCRIPT TEST====$ssh_stop_vip==$ssh_start_vip===\n\n";
    
34. 
    
35.     if ( $command eq "stop" || $command eq "stopssh" ) {
    
36. 
    
37.         # $orig_master_host, $orig_master_ip, $orig_master_port are passed.
    
38.         # If you manage master ip address at global catalog database,
    
39.         # invalidate orig_master_ip here.
    
40.         my $exit_code = 1;
    
41.         eval {
    
42.             print "Disabling the VIP on old master: $orig_master_host \n";
    
43.             &stop_vip();
    
44.             $exit_code = 0;
    
45.         };
    
46.         if ($@) {
    
47.             warn "Got Error: $@\n";
    
48.             exit $exit_code;
    
49.         }
    
50.         exit $exit_code;
    
51.     }
    
52.     elsif ( $command eq "start" ) {
    
53. 
    
54.         # all arguments are passed.
    
55.         # If you manage master ip address at global catalog database,
    
56.         # activate new_master_ip here.
    
57.         # You can also grant write access (create user, set read_only=0, etc) here.
    
58.         my $exit_code = 10;
    
59.         eval {
    
60.             print "Enabling the VIP - $vip on the new master - $new_master_host \n";
    
61.             &start_vip();
    
62.             $exit_code = 0;
    
63.         };
    
64.         if ($@) {
    
65.             warn $@;
    
66.             exit $exit_code;
    
67.         }
    
68.         exit $exit_code;
    
69.     }
    
70.     elsif ( $command eq "status" ) {
    
71.         print "Checking the Status of the script.. OK \n";
    
72.         `ssh $ssh_user\@cluster1 \" $ssh_start_vip \"`;
    
73.         exit 0;
    
74.     }
    
75.     else {
    
76.         &usage();
    
77.         exit 1;
    
78.     }
    
79. }
    
80. 
    
81. # A simple system call that enable the VIP on the new master
    
82. sub start_vip() {
    
83.     `ssh $ssh_user\@$new_master_host \" $ssh_start_vip \"`;
    
84. }
    
85. # A simple system call that disable the VIP on the old_master
    
86. sub stop_vip() {
    
87.     `ssh $ssh_user\@$orig_master_host \" $ssh_stop_vip \"`;
    
88. }
    
89. 
    
90. sub usage {
    
91.     print
    
92.     "Usage: master_ip_failover --command=start|stop|stopssh|status --orig_master_host=host --orig_master_ip=ip --orig_master_port=port --new_master_host=host --new_master_ip=ip --new_master_port=port\n";
    
93. }

复制代码

jzz000114

mark一下，有同样的问题。