Top 10 Examples of "zookeeper in functional component" in JavaScript
Dive into secure and efficient coding practices with our curated list of the top 10 examples showcasing 'zookeeper' in functional components in JavaScript. Our advanced machine learning engine meticulously scans each line of code, cross-referencing millions of open source libraries to ensure your implementation is not just functional, but also robust and secure. Elevate your React applications to new heights by mastering the art of handling side effects, API calls, and asynchronous operations with confidence and precision.
zkc.zookeeper( function(zk) {
console.log("creating temp node");
zk.a_create("/chh/temp/node","stuff", ZooKeeper.ZOO_SEQUENCE + ZooKeeper.ZOO_EPHEMERAL ,function (rc, error, path) {
if (rc != 0) {
console.log ("zk node create result: %d, error: '%s', path=%s", rc, error, path);
} else {
// console.log("================== %s", path );
var me = path.match(/[^\/]+$/)[0];
console.log("My name is: %s", me);
var dir = "/chh/temp";
election(zk,dir,me);
}
});
});var lw = function(type, state, p){
if( type == ZooKeeper.ZOO_CHANGED_EVENT ) {
zk.aw_get( path, lw, function() {} );
} else if( type == ZooKeeper.ZOO_DELETED_EVENT ) {
// Our sentinal disappeared - this could mean that
// we are now the leader, or it could mean that we
// need to watch someone else.
election(zk,dir,me);
} else if( type == ZooKeeper.ZOO_SESSION_EVENT ) {
//console.log("Session problem!");
// zk will keep our callback around - no need to re-establish.
} else {
console.log( "Unkown type: " + type );
//zk.aw_get( path, lw, function() {} );
}
};
zk.aw_get( path, lw, function() {} );var lw = function(type, state, p){
if( type == ZooKeeper.ZOO_CHANGED_EVENT ) {
zk.aw_get( path, lw, function() {} );
} else if( type == ZooKeeper.ZOO_DELETED_EVENT ) {
// Our sentinal disappeared - this could mean that
// we are now the leader, or it could mean that we
// need to watch someone else.
zk_election(zk,dir,me,cb);
} else if( type == ZooKeeper.ZOO_SESSION_EVENT ) {
//console.log("Session problem!");
// zk will keep our callback around - no need to re-establish.
} else {
console.log( "Unkown type: " + type );
throw new Error("Unknown change type");
}
};
zk.aw_get( path, lw, function() {} );var lw = function(type, state, p){
if( type == ZooKeeper.ZOO_CHANGED_EVENT ) {
zk.aw_get( path, lw, function() {} );
} else if( type == ZooKeeper.ZOO_DELETED_EVENT ) {
// Our sentinal disappeared - this could mean that
// we are now the leader, or it could mean that we
// need to watch someone else.
election(zk,dir,me);
} else if( type == ZooKeeper.ZOO_SESSION_EVENT ) {
//console.log("Session problem!");
// zk will keep our callback around - no need to re-establish.
} else {
console.log( "Unkown type: " + type );
//zk.aw_get( path, lw, function() {} );
}
};
zk.aw_get( path, lw, function() {} );var lw = function(type, state, p){
if( type == ZooKeeper.ZOO_CHANGED_EVENT ) {
zk.aw_get( path, lw, function() {} );
} else if( type == ZooKeeper.ZOO_DELETED_EVENT ) {
// Our sentinal disappeared - this could mean that
// we are now the leader, or it could mean that we
// need to watch someone else.
zk_election(zk,dir,me,cb);
} else if( type == ZooKeeper.ZOO_SESSION_EVENT ) {
//console.log("Session problem!");
// zk will keep our callback around - no need to re-establish.
} else {
console.log( "Unkown type: " + type );
throw new Error("Unknown change type");
}
};
zk.aw_get( path, lw, function() {} );var lw = function(type, state, p){
if( type == ZooKeeper.ZOO_CHANGED_EVENT ) {
zk.aw_get( path, lw, function() {} );
} else if( type == ZooKeeper.ZOO_DELETED_EVENT ) {
// Our sentinal disappeared - this could mean that
// we are now the leader, or it could mean that we
// need to watch someone else.
zk_election(zk,dir,me,cb);
} else if( type == ZooKeeper.ZOO_SESSION_EVENT ) {
//console.log("Session problem!");
// zk will keep our callback around - no need to re-establish.
} else {
console.log( "Unkown type: " + type );
throw new Error("Unknown change type");
}
};
zk.aw_get( path, lw, function() {} );var lw = function(type, state, p){
if( type == ZooKeeper.ZOO_CHANGED_EVENT ) {
zk.aw_get( path, lw, function() {} );
} else if( type == ZooKeeper.ZOO_DELETED_EVENT ) {
// Our sentinal disappeared - this could mean that
// we are now the leader, or it could mean that we
// need to watch someone else.
election(zk,dir,me);
} else if( type == ZooKeeper.ZOO_SESSION_EVENT ) {
//console.log("Session problem!");
// zk will keep our callback around - no need to re-establish.
} else {
console.log( "Unkown type: " + type );
//zk.aw_get( path, lw, function() {} );
}
};
zk.aw_get( path, lw, function() {} );process.on('SIGINT',function(){
console.log("Exiting")
if(zk != undefined && zk != null)
zk.close();
zk = new ZooKeeper({
connect: process.argv[2],
timeout: 22000,
debug_level: ZooKeeper.ZOO_LOG_LEVEL_WARN,
host_order_deterministic: false
})
zk.connect(function(err){
zk.a_get(zkPath,false,function(rc,error,stat,data){
zk.a_delete_(zkPath, stat.version,function(rc,error){
zk.close()
})
})
})
setTimeout(function(){
process.exit(0)
},1000)
})
}function become_leader(zk,me) {
console.log(">>>>>>>>>>>>>>>>>>>>> I AM THE LEADER <<<<<<<<<<<<<<<<<<<<<<<<<<<");
zk.a_create("/chh/xxx/leader", me, ZooKeeper.ZOO_EPHEMERAL ,function (rc, error, path) {
});
}function new_zk(hosts,zkclient){
var zk = new ZK();
zk.init ({connect:hosts, timeout:20000, debug_level:ZK.ZOO_LOG_LEVEL_WARNING, host_order_deterministic:false});
zk.on (ZK.on_connected, function (zkk) {
console.log ("zk session established, id=%s", zkk.client_id);
});
zk.on(ZK.on_closed,function(zkk){
//re-initialize
console.log("zk session close,re-init it");
zkclient.zk=new_zk(hosts,zkclient);
});
return zk;
}