zookeeper watch 节点

最新推荐文章于 2024-08-23 17:53:14 发布

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最新推荐文章于 2024-08-23 17:53:14 发布

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CC 4.0 BY-SA版权

文章标签：大数据数据库

原文链接：http://www.cnblogs.com/zhaoyangjian724/p/6199364.html

本文通过Perl脚本示例展示了如何使用ZooKeeper客户端库与ZooKeeper服务器进行交互，包括获取节点数据及设置监听器等功能。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

zjtest7-redis:/root/zk# cat a1.pl 
use ZooKeeper;
use AnyEvent;
use AE;
use Data::Dumper;
use IO::Socket;
     sub check_port {
                        ( $server, $port ) = ('127.0.0.1','3306');
                              $sock = IO::Socket::INET->new(PeerAddr => $server,
                              PeerPort => $port,
                              Proto => 'tcp');
                             if ($sock)
                                {return 1}
                             else
                                {return 0 };
                   }; 


    my @ip_list=();
   my $zk = ZooKeeper->new(hosts => '120.55.118.6:2181,120.55.118.6:2182,120.55.118.6:2183') ;
   #my $zk = ZooKeeper->new(hosts => '120.55.118.6:2182,120.55.118.6:2183') ;
      print "zk status\n";
         print Dumper($zk->get('/mysql/0001'));
            print "zk status\n";
zjtest7-redis:/root/zk# perl a1.pl 
zk status
$VAR1 = '192.168.32.6';
$VAR2 = {
          'dataLength' => 12,
          'cversion' => 0,
          'mtime' => '1471311976986',
          'czxid' => '21474837517',
          'ephemeralOwner' => '240533560774754452',
          'pzxid' => '21474837517',
          'version' => 1,
          'mzxid' => '21474837518',
          'ctime' => '1471311976969',
          'aversion' => 0,
          'numChildren' => 0
        };
zk status


/***************************************

  my $zk_value = $zk->get('/mysql/0001', watcher => sub {
        ###事件状态
        my $event = shift;
        print "触发了事件.";
        print $event->{'type'}."\n";
        print "事件状态.";
        print $event->{'state'}."\n";
        $cv->send($event) }


zookeeper watch 节点

转载于:https://www.cnblogs.com/zhaoyangjian724/p/6199364.html