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POGearman return value not working
 

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    <p>I am trying to get gearman to return a value to php from a function after php makes a request to it using $gmclient->do("somefunction", "somedata"). However, the php client simply times out. The exact code I am using is straight from the php manual. I am using example #1 from <a href="http://docs.php.net/manual/en/gearmanclient.do.php" rel="nofollow">http://docs.php.net/manual/en/gearmanclient.do.php</a></p> <p>The browser gives me this message:</p> <blockquote> <p>This webpage is not available.</p> <p>The webpage at <a href="http://yoursite.com/client.php" rel="nofollow">http://yoursite.com/client.php</a> might be temporarily down or it may have moved permanently to a new web address.</p> <p>More information on this error. Below is the original error message</p> <p>Error 324 (net::ERR_EMPTY_RESPONSE): Unknown error.</p> </blockquote> <p>The browser is Chrome if that helps to elaborate the error message.</p> <p>In case it makes a difference, the worker.php file is being executed in a terminal window using the command "php worker.php". I am running on Ubuntu 9.10 Karmic Koala. I installed gearman using the directions found at <a href="http://blog.stuartherbert.com/php/2010/02/26/getting-gearman-up-and-running-on-ubuntu-karmic/" rel="nofollow">http://blog.stuartherbert.com/php/2010/02/26/getting-gearman-up-and-running-on-ubuntu-karmic/</a></p> <p>I checked the terminal window and gearman is getting the request and echos the results into the terminal - it just not sent back to the client.</p> <p>The end goal is to get gearman to return to the client the return value from the function that was executed and display that value to the user.</p> <p>UPDATE:</p> <p>As requested, the code is below:</p> <p>worker.php (the worker)</p> <pre><code>&lt;?php echo "Starting\n"; # Create our worker object. $gmworker= new GearmanWorker(); # Add default server (localhost). $gmworker-&gt;addServer(); # Register function "reverse" with the server. Change the worker function to # "reverse_fn_fast" for a faster worker with no output. $gmworker-&gt;addFunction("reverse", "reverse_fn"); print "Waiting for job...\n"; while($gmworker-&gt;work()) { if ($gmworker-&gt;returnCode() != GEARMAN_SUCCESS) { echo "return_code: " . $gmworker-&gt;returnCode() . "\n"; break; } } function reverse_fn($job) { return strrev($job-&gt;workload()); } ?&gt; </code></pre> <p>client.php (client code - this is the page I am loading the browser)</p> <pre><code>&lt;?php # Client code echo "Starting\n"; # Create our client object. $gmclient= new GearmanClient(); # Add default server (localhost). $gmclient-&gt;addServer(); echo "Sending job\n"; $result = $gmclient-&gt;do("reverse", "Hello!"); echo "Success: $result\n"; ?&gt; </code></pre> <p>The comments below where it said it was working.. I repeat, it was NOT working. It only appeared to work because I changed $gmclient->do to $gmclient->doBackground which output the job ID, not the actual result from the function.</p> <p><strong>FINAL UPDATE (WITH SOLUTION)</strong></p> <p>After some work, I've figured out that it was not a coding error. Gearman was improperly installed. Instead of using apt-get install, I decided to do things manually. I downloaded the gearmand (c) from the gearman site (http://gearman.org/index.php?id=download). I then used the tutorials on the gearman site as well starting with <a href="http://gearman.org/index.php?id=getting_started" rel="nofollow">http://gearman.org/index.php?id=getting_started</a> and then <a href="http://gearman.org/index.php?id=gearman_php_extension" rel="nofollow">http://gearman.org/index.php?id=gearman_php_extension</a></p>
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    1. COumm if the webpage is not found you're not going to get a return. Strange I just hit the link again and got a return. "Starting Sending job Success: H:svmain-desktop:57" I would check that server and make sure it's running properly
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    2. COI was fiddling around with it by changing do() to doBackground(). That's still not the actual result from the function. The server is running properly.
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    3. COsomething is wrong with the gmtest.php file as the host is fine. I see that you modified the file and it worked and then you modified the file again and now it doesn't work. Maybe posting the code would help in debugging your problem
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