ZookeeperConfig::add

(PECL zookeeper >= 0.6.0, ZooKeeper >= 3.5.0)

ZookeeperConfig::add — Add servers to the ensemble

说明

public ZookeeperConfig::add(string $members, int $version = -1, array &$stat = null): void

参数

members: Comma separated list of servers to be added to the ensemble. Each has a configuration line for a server to be added (as would appear in a configuration file), only for maj. quorums.
version: The expected version of the node. The function will fail if the actual version of the node does not match the expected version. If -1 is used the version check will not take place.
stat: If not NULL, will hold the value of stat for the path on return.

返回值

没有返回值。

错误／异常

This method emits ZookeeperException and it's derivatives when parameters count or types are wrong or fail to save value to node.

范例

示例 #1 ZookeeperConfig::add() example

Add members.


<?php
$client = new Zookeeper();
$client->connect('localhost:2181');
$client->addAuth('digest', 'timandes:timandes');
$zkConfig = $client->getConfig();
$zkConfig->set("server.1=localhost:2888:3888:participant;0.0.0.0:2181");
$zkConfig->add("server.2=localhost:2889:3889:participant;0.0.0.0:2182");
$r = $zkConfig->get();
if ($r)
  echo $r;
else
  echo 'ERR';
?>

以上例程会输出：

server.1=localhost:2888:3888:participant;0.0.0.0:2181
server.2=localhost:2889:3889:participant;0.0.0.0:2182
version=0xca01e881a2

参见

ZookeeperConfig::get() - Gets the last committed configuration of the ZooKeeper cluster as it is known to the server to which the client is connected, synchronously
ZookeeperConfig::set() - Change ZK cluster ensemble membership and roles of ensemble peers
ZookeeperConfig::remove() - Remove servers from the ensemble
ZookeeperException

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官方地址：https://www.php.net/manual/en/zookeeperconfig.add.php

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ZookeeperConfig::add

说明

参数

返回值

错误／异常

范例

参见

User Contributed Notes