GearmanWorker::addServer

(PECL gearman >= 0.5.0)

GearmanWorker::addServer — Add a job server

Descrizione

public GearmanWorker::addServer(string $host = null, int $port = 0, bool $setupExceptionHandler = true): bool

Adds a job server to this worker. This goes into a list of servers than can be used to run jobs. No socket I/O happens here.

Elenco dei parametri

host: L'hostname del job server.
port: La porta del job server.

Valori restituiti

Restituisce true in caso di successo, false in caso di fallimento.

Esempi

Example #1 Add alternate Gearman servers

<?php
$worker= new GearmanWorker(); 
$worker->addServer("10.0.0.1"); 
$worker->addServer("10.0.0.2", 7003);
?>

Vedere anche:

GearmanWorker::addServers() - Add job servers

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User Contributed Notes 7 notes

down

magge ¶

12 years ago

If you suddenly start getting a:



PHP Fatal error:  Uncaught exception 'GearmanException' with message 'Failed to set exception option' in



...on your GearmanWorker::work() calls, I was able to fix this by specifying values to GearmanWorker::addServer(), even if they are the same as the documented default values.



Crashes:



<?php

$gmw = new GearmanWorker();

$gmw->addServer();

$gmw->work();

?>



Works:



<?php

$gmw = new GearmanWorker();

$gmw->addServer("127.0.0.1", 4730);

$gmw->work();

?>



Go figure. :)

down

liv_romania at yahoo dot com ¶

9 years ago

To properly test the server added you could use the following code:

<?php
// create the worker
$worker= new GearmanWorker();

// add the  job server (bad host/port)
$worker->addServer('127.0.0.2', 4731);

// define a variable to hold application data
$count = 0;

// add the reverse function
$worker->addFunction('reverse', 'my_reverse_function', $count);

// test job server response
if (!@$worker->echo('test data')) {
    die($worker->error());
}

// start the worker listening for job submissions
while ($worker->work());

function my_reverse_function($job, &$count)
{
    $count++;

    return $count . ': ' . strrev($job->workload()) . "\n";
}
?>

down

anubhav dot jha at gmail dot com ¶

7 years ago

I was receving following message on add server Uncaught exception 'GearmanException' with message 'Failed to set exception option' in <<filename>>:<<linenumber >>
 was on centos 6.5

fixed by following steps:
yum install gearmand
/etc/init.d/gearmand start

down

mike at eastghost dot com ¶

7 years ago

PHP Fatal error:  Uncaught exception 'GearmanException' with message 'Failed to set exception option'

also indicates the gearmand daemon is not running.

down

gabe dot spradlin at gmail dot com ¶

11 years ago

The manual states that you get a TRUE on success and FALSE on failure. When I have attempted to connect to a server that is powered off I still get TRUE. The return from returnCode() is 0 which is the same as the returnCode() from a successful connection.

I have not yet found a way around this.

down

allevo ¶

7 years ago

On Ubuntu (php7 php-gearman/xenial,now 2.0.2+1.1.2-1+deb.sury.org~xenial+1 amd64) this function throws a GearmanException. 
Please use in try catch

down

-3

617137379 at qq dot com ¶

11 years ago

No socket I/O happens in addserver.

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