php-nsq

NSQ client for php7 . QQ Group : 616063018

intall :

Dependencies: libevent  (apt-get install libevent-dev ,yum install libevent-devel)

1. sudo phpize
2. ./configure 
3. make  
4. make install  

add in your php.ini:

extension = nsq.so;

Example for pub:

$nsqdAddr = array(
    "127.0.0.1:4150",
    "127.0.0.1:4154"
);

$nsq = new Nsq();
$isTrue = $nsq->connectNsqd($nsqdAddr);

for($i = 0; $i < 10000; $i++){
    $nsq->publish("test", "nihao");
}
$nsq->closeNsqdConnection();

// Deferred publish 
//function : deferredPublish(string topic,string message, int millisecond); 
//millisecond default : [0 < millisecond < 3600000]

$deferred = new Nsq();
$isTrue = $deferred->connectNsqd($nsqdAddr);
for($i = 0; $i < 20; $i++){
    $deferred->deferredPublish("test", "message daly", 3000); 
}
$deferred->closeNsqdConnection();

Example for sub:

<?php 

//sub

$nsq_lookupd = new NsqLookupd("127.0.0.1:4161"); //the nsqlookupd http addr
$nsq = new Nsq();
$config = array(
    "topic" => "test",
    "channel" => "struggle",
    "rdy" => 2,                //optional , default 1
    "connect_num" => 1,        //optional , default 1   
    "retry_delay_time" => 5000,  //optional, default 0 , if run callback failed, after 5000 msec, message will be retried
    "auto_finish" => true, //default true
);

$nsq->subscribe($nsq_lookupd, $config, function($msg,$bev){ 

    echo $msg->payload."\n";
    echo $msg->attempts."\n";
    echo $msg->messageId."\n";
    echo $msg->timestamp."\n";


});

Nsq Object

• connectNsqd($nsqdAddrArr)
  publish use, You can also use it for health check;

• closeNsqdConnection()
  close connecNsqd's socket

• publish($topic,$msg)
  

• deferredPublish($topic,$msg,$msec)
  

• subscribe($nsq_lookupd,$config,$callback)
  

Message Object

The following properties and methods are available on Message objects produced by a Reader instance.

• timestamp
  Numeric timestamp for the Message provided by nsqd.
• attempts
  The number of attempts that have been made to process this message.
• messageId
  The opaque string id for the Message provided by nsqd.
• payload
  The message payload as a Buffer object.
• finish($bev,$msg->messageId)
  Finish the message as successful.
• touch($bev,$msg->messageId)
  Tell nsqd that you want extra time to process the message. It extends the soft timeout by the normal timeout amount.

Tips :

1. If you need some variable in callback ,you should use 'use' :
   

$nsq->subscribe($nsq_lookupd, $config, function($msg,$bev) use ($you_variable){ 

    echo $msg->payload;

});

2. Requeue/Retry -- if you whant to retry your mesage when callback have something wrong, just throw any Exception , example:
   

<?php 

$nsq->subscribe($nsq_lookupd, $config, function($msg){ 
    try{
        echo $msg->payload . " " . "attempts:".$msg->attempts."\n";
        //do something
    }catch(Exception $e){

        if($msg->attempts < 3){
            //the message will be retried after you configure retry_delay_time 
            throw new Exception(""); 
        }else{
            echo $e->getMessage();
            return;
        }
    }

});

3. If you want to increase your message timeout and heartbeats time ,Two steps are needed:
   

    #1 when nsqd startup you should set command line option:

    nsqd --lookupd-tcp-address=127.0.0.1:4160 --max-heartbeat-interval=1m30s --msg-timeout=10m30s


    #2 And , you should use identify config. For details, see the identify example file.
    

4. If your have strong consuming ability ,you can add you rdy num and connect num
   

5. You can use supervisor to supervise process,The following configuration needs to be added to the supervisor configuration file:
   

    stopasgroup=true
    killasgroup=true

6. If your execution time is more than 1 minute, you should use 'touch()' function
   

Changes

• 3.2.0 *Fix The error message was not reported *Fix pub error when ip or url too long
• 3.1.0
  • Fix memmory wrong
  • Fix subscribe wrong
• 3.0
  • Fix libevent more than 4096 bytes are truncated
  • add the identify command,can use be set or increase heartbeats time and msg-timeout
• 2.4.0
  • Fix pub bug
  • Fix sub coredump
  • Fix touch bug
  • Add the waite, when topic has no message
• 2.3.1
  • Support the domain host of pub
  • Fix pub coredump
• 2.3.0
  • Optimized memory usage, Guarantee stability of resident memory
• 2.2.0
  • Fix pub bug zend_mm_heap corrupted
  • Fix pub block bug when received the 'heartbeats'
  • Add the bufferevent resource
  • Add the deferred publish
  • Add the touch function
  • Add the finish function
• 2.1.1
  • Fix core dump
• 2.0
  • retry
  • message object
  • fix c99 install error
  • license