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ZookeeperConfig::add

PHP function Edit on GitHub ✎

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

Add servers to the ensemble

Description

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

Parameters

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.

Return Values

Void

Errors/Exceptions

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

Examples

ZookeeperConfig::add example

Add members.

php

<?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';
?>

The above example will output:

output

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