Php/docs/zookeeperconfig.add
ZookeeperConfig::add
(PECL zookeeper >= 0.6.0, ZooKeeper >= 3.5.0)
ZookeeperConfig::add — Add servers to the ensemble
Description
public
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.
Errors/Exceptions
This method emits ZookeeperException and it's derivatives when parameters count or types are wrong or fail to save value to node.
Examples
Example #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';?>
The above example will 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
See Also
- 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
