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関数・クラス解説

ZookeeperConfig::remove

version:PECL zookeeper >= 0.6.0, ZooKeep (公式)

Remove servers from the ensemble

公式リファレンス

書式

public ZookeeperConfig::remove ( string $id_list [, int $version = -1 [, array &$stat = NULL ]] ) : void

パラメータ

id_list: Comma separated list of server IDs to be removed from the ensemble. Each has an id of a server to be removed, 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.

エラー

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

サンプル

例1 ZookeeperConfig::remove() example
  Remove members.  

$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,server.2=localhost:2889:3889:participant;0.0.0.0:2182");
$zkConfig->remove("2");
echo $zkConfig->get();
if ($r)
  echo $r;
else
  echo 'ERR';

 上の例の出力は以下となります。 
server.1=localhost:2888:3888:participant;0.0.0.0:2181
version=0xca01e881a2

参考

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::add() - Add servers to the ensemble

ZookeeperConfig::set() - Change ZK cluster ensemble membership and roles of ensemble peers

ZookeeperException