Zookeeper Analog Monitoring Service node downtime

Source: Internet
Author: User

Zookeeper Analog Monitoring Service node downtime

/**  *  Analog Monitoring Service node outage   *  thought:  *   node is on line, create a node under/watch, and then monitor the node Log event types to determine if nodes are down   *  @throws  Exception  */ public static void  Watch ()  throws exception {  while (true)  {   final zookeeper  zkclient = new zookeeper ("192.168.1.231,192.168.1.232,192.168.1.233", 50000,  NULL);    string path = zkclient.create ("/watch/",  "". GetBytes (),  zoodefs.ids.open_acl_unsafe, createmode.ephemeral_sequential);       Zkclient.exists (Path, new watcher ()  {    public void process ( watchedevent event)  {     if (Event.gettype (). GetIntValue ()  ==  EventType.NodeDeleted.getIntValue ())  {      system.err.println ("Node destruction  = =====================  "  + event);     } else {       System.err.println ("================  "  + event);     }      try {      zkclient.getchildren (Event.getPath (),  this);     } catch  (keeperexception e)  {       e.printstacktrace ();     } catch  (InterruptedException  e)  {      e.printstacktrace ();     }     }   });       zkclient.close ();   }  }

Zookeeper Analog Monitoring Service node downtime

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