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Storm Multilang support with PHP [INACTIVE]

PHP 100.00%

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Could you consider adding a license to this project?

problem while testing examples

how we can run WordCountTopology with php ? can you explain more ?

Problem with __acking

Hi,
I'm running into an issue with my PHP bolts. I can successfully process an incoming stream, but the bolts usually fail because of a lack of acking.

I'm linking two php bolts sequentially, and they both look like the following:

values[0]; $this->emit(array($values*5)); $this->ack($tuple); } } $splitsentence = new ActivateGiftCardBolt(); $splitsentence->run(); ?>

and the Java code for the Bolts:

   public class PhpActivateGiftCardBolt extends ShellBolt implements IRichBolt {

public PhpActivateGiftCardBolt() {
    super("php", "order_processing/activate_giftcard.php");
}

@Override
public void declareOutputFields(OutputFieldsDeclarer declarer) {
    declarer.declare(new Fields("order_id"));
}

@Override
public Map<String, Object> getComponentConfiguration() {
    return null;
}
    }

and how I;'m connecting them

    builder.setBolt("activate_gc", new ActivateGiftCardBolt(), 4)
            .shuffleGrouping("order_id");
    builder.setBolt("send_gc_email", new SendGiftCardEmailBolt(), 4)
            .shuffleGrouping("activate_gc");

When I remove the ack, the topology fails because of the lack of acked tuples, but when I call the ack method, the topology fails because it is failing acked/non-existant tuples.

Any idea why this happens?

Spouts acting like line queues

While running a Topology, it seems as if php bolts are not propagating the message to the next bolt until they receive something from the previous bolt (or spout). As opposed to sending emitting/receiving a tuple once the previous bolt emits.

Any ideas?

dose it work with Storm 0.10.* or later？

PHP process die

I would to test your great Storm addon.

I used storm-starter with somme modification to use the following PHP file for replacement of splitsentence.py.

require_once 'storm-php/lib/storm.php';

class SplitSentenceBolt extends BasicBolt {
    public function process(Tuple $tuple)  {
        $words = explode(' ', $tuple->values[0]);

        foreach($words as $word)
            $this->emit(array($word));
    }
}

$splitsentence = new SplitSentenceBolt();
$splitsentence->run();

I run the WordCountTopology example. It seems to be ok ...

2914 [Thread-22] INFO  backtype.storm.daemon.executor  - Processing received message source: spout:8, stream: default, id: {}, [four score and seven years ago]
2923 [Thread-25] INFO  backtype.storm.daemon.task  - Emitting: split default ["four"]
2924 [Thread-25] INFO  backtype.storm.daemon.task  - Emitting: split default ["score"]
2929 [Thread-18] INFO  backtype.storm.daemon.executor  - Processing received message source: split:5, stream: default, id: {}, ["four"]
2929 [Thread-25] INFO  backtype.storm.daemon.task  - Emitting: split default ["and"]
2930 [Thread-18] INFO  backtype.storm.daemon.task  - Emitting: count default [four, 1]

but very few seconds after, i think the PHP process died :

3091 [Thread-22] ERROR backtype.storm.util  - Async loop died!
java.lang.RuntimeException: java.lang.RuntimeException: java.lang.RuntimeException: Pipe to subprocess seems to be broken! No output read.
Shell Process Exception:


    at backtype.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:87)
    at backtype.storm.utils.DisruptorQueue.consumeBatchWhenAvailable(DisruptorQueue.java:58)
    at backtype.storm.disruptor$consume_batch_when_available.invoke(disruptor.clj:62)
    at backtype.storm.daemon.executor$fn__4043$fn__4052$fn__4099.invoke(executor.clj:658)
    at backtype.storm.util$async_loop$fn__465.invoke(util.clj:377)
    at clojure.lang.AFn.run(AFn.java:24)
    at java.lang.Thread.run(Thread.java:679)
Caused by: java.lang.RuntimeException: java.lang.RuntimeException: Pipe to subprocess seems to be broken! No output read.
Shell Process Exception:


    at backtype.storm.task.ShellBolt.execute(ShellBolt.java:139)
    at backtype.storm.daemon.executor$fn__4043$tuple_action_fn__4045.invoke(executor.clj:566)
    at backtype.storm.daemon.executor$mk_task_receiver$fn__3969.invoke(executor.clj:345)
    at backtype.storm.disruptor$clojure_handler$reify__1599.onEvent(disruptor.clj:43)
    at backtype.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:84)
    ... 6 more
Caused by: java.lang.RuntimeException: Pipe to subprocess seems to be broken! No output read.
Shell Process Exception:


    at backtype.storm.utils.ShellProcess.readString(ShellProcess.java:100)
    at backtype.storm.utils.ShellProcess.readMessage(ShellProcess.java:62)
    at backtype.storm.task.ShellBolt$1.run(ShellBolt.java:90)
    ... 1 more
3103 [Thread-22] ERROR backtype.storm.daemon.executor  -

Did you already encounter this problem ?

Thanks

Bolts passively receiving tuples

Php Bolts seem to passively accept tuples. The previous worker can emit a tuple, but a bolt will not process the first tuple until the worker emits a second tuple. (Hence the last tuple never gets processed)

High CPU load

While I can use storm-php for my bolts I have very high CPU load.
This is probably because of while(true) $line = trim($this->readLine()); ?

If this is the case should we implement usleep or something to ease off when no data is coming ?

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