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mysql_history_monitor

时间:2021-07-01 10:21:17 帮助过:55人阅读

上篇加了bash_history的监控,这篇说mysql_history的监控。不像bash4,mysql自始至终没有提供过syslog的代码,只能自己通过守护进程去实时获取~/.mysql_history的记录了。一个小脚本如下: #!/usr/bin/perl -wuse POE qw(Wheel::FollowTail);use Log::Syslog

上篇加了bash_history的监控,这篇说mysql_history的监控。不像bash4,mysql自始至终没有提供过syslog的代码,只能自己通过守护进程去实时获取~/.mysql_history的记录了。一个小脚本如下:

#!/usr/bin/perl -w
use POE qw(Wheel::FollowTail);
use Log::Syslog::Fast qw(:all);
defined(my $pid = fork) or die "Cant fork:$!";
unless($pid){  
}else{
         exit 0;
}
POE::Session->create(
    inline_states => {
      _start => sub {
        $_[HEAP]{tailor} = POE::Wheel::FollowTail->new(
          Filename => "/root/.mysql_history",
          InputEvent => "got_log_line",
          ResetEvent => "got_log_rollover",
        );
      },
      got_log_line => sub {
#通过Data::Dumper看到实际是$_[10],不过在POE::Session里定义了sub ARG0 () { 10 };这样写起来简单了
        to_rsyslog($_[ARG0]);
      },
      got_log_rollover => sub {
        to_rsyslog('roll');
      },
    }
);
POE::Kernel->run();
exit;
sub to_rsyslog {
  $message = join' ',@_;
#rsyslog开的是UDP的514端口;而LOG_LOCAL0和LOG_INFO都是syslog定义的,乱写的话会自动归入kernel | alert
  my $logger = Log::Syslog::Fast->new(LOG_UDP, "10.0.0.123", 514, LOG_LOCAL0, LOG_INFO, "mysql_231", "mysql_monitor");
  $logger->send($message ,time);
};

当然,mysql的history其实不止一个位置,需要判断~

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