当使用左进程进行调用$worker->send($messages);出现错误 about mix

[onanying]

这个 swoole 扩展抛出的错误，源码 https://learnku.com/articles/16908/analysis-of-swoole-source-code-queue-queue-of-basic-module ，我这里重现不出来，你使用的 swoole 是什么版本。

[Shandawei]

swoole版本信息:

swoole

Swoole => enabled
Author => Swoole Team <[email protected]>
Version => 4.2.13
Built => Feb  3 2019 23:16:24
coroutine => enabled
kqueue => enabled
rwlock => enabled
pcre => enabled
zlib => enabled
brotli => enabled
async_redis => enabled

Directive => Local Value => Master Value
swoole.display_errors => On => On
swoole.enable_coroutine => On => On
swoole.fast_serialize => Off => Off
swoole.unixsock_buffer_size => 262144 => 262144
swoole.use_shortname => On => On

php 版本

PHP 7.3.1 (cli) (built: Jan 10 2019 13:15:37) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.3.1, Copyright (c) 1998-2018 Zend Technologies
    with Zend OPcache v7.3.1, Copyright (c) 1999-2018, by Zend Technologies

mix版本

const VERSION = '1.1.1';

*问题出现的时机为:*左进程向中进程发送信息$worker->send($data)时出现该问题

复现方式:

1.在task/InputQueue的push方法下方添加如下内容,当字符串为数组长度为1的序列化时,没问题

 public function push($data)
    {
        // 重启信号处理
        if ($this->isLeftWorker() && ($this->isRestart() || $this->isStopLeft())) {
            if (parent::push($data)) {
                $this->worker->exit();
            }
        }
        // 投递数据
        // $data = "";
        print('data');
        $data = <<<data
a:1:{i:0;O:16:"MQ\Model\Message":9:{s:16:"*receiptHandle";s:93:"2F630CC85E5C3D4EAC69389B9775013B-OSAxNTQ5OTAwMTIwOTU5IDMwMDAwMCA3IDAgaHotc2hhcmUyLTAzIDEgOQ==";s:14:"*publishTime";s:13:"1549900120949";s:18:"*nextConsumeTime";s:13
:"1549900420959";s:19:"*firstConsumeTime";s:13:"1549900120959";s:16:"*consumedTimes";s:1:"1";s:9:"messageId";s:32:"2F630CC85E5C3D4EAC69389B9775013B";s:14:"messageBodyMD5";s:32:"8D7B3DF974943E802F6C4D70D2293D3B";s:11:"messageBody";s:738:"{"db"
:{"uid":"100033","app_id":"100270","url":"http:\/\/www.kancloud.cn\/manual\/thinkphp5_1\/354102","title":"\u4eca\u5929\u8fd8\u6ca1\u6709\u7b7e\u5230\u54e6\uff0c\u4e0d\u8981\u5fd8\u8bb0\u4e86\u554a","description":"\u6cd5\u5e08\u6253\u53d1\u65a
f\u8482\u82ac","tid":"100028","push_description":"\u8fd9\u91cc\u63a8\u9001\u63cf\u8ff0"},"push":{"uid":"100033","app_id":"100270","url":"http:\/\/www.kancloud.cn\/manual\/thinkphp5_1\/354102","title":"\u5de5\u4f5c\u901a\u77e5:\u6cb3\u5357\u77
01\u7b2c\u4e00\u4eba\u6c11\u533b\u9662","description":"[\u7b7e\u5230]\u4eca\u5929\u8fd8\u6ca1\u6709\u7b7e\u5230\u54e6\uff0c\u4e0d\u8981\u5fd8\u8bb0\u4e86\u554a","tid":"100028","push_description":"\u8fd9\u91cc\u63a8\u9001\u63cf\u8ff0"},"versio
n":"1"}";s:10:"messageTag";N;}}
data;
        return parent::push($data);
    }

2.当字符串为数组长度为2的序列化时,出现上方描述的错误

   // 投递数据
    public function push($data)
    {
        // 重启信号处理
        if ($this->isLeftWorker() && ($this->isRestart() || $this->isStopLeft())) {
            if (parent::push($data)) {
                $this->worker->exit();
            }
        }
        // 投递数据
        // $data = "";
        print('data');
        $data = <<<data
a:2:{i:0;O:16:"MQ\Model\Message":9:{s:16:"*receiptHandle";s:93:"2F630B0D5D5C3D4EAC69389B8EFC009F-MTAgMTU0OTkwMDEyMDA4NyAzMDAwMDAgMyAwIGh6LXNoYXJlMi0wNCAzIDEw";s:14:"*publishTime";s:13:"1549900118780";s:18:"*nextConsumeTime";s:13
:"1549900420087";s:19:"*firstConsumeTime";s:13:"1549900120087";s:16:"*consumedTimes";s:1:"1";s:9:"messageId";s:32:"2F630B0D5D5C3D4EAC69389B8EFC009F";s:14:"messageBodyMD5";s:32:"8D7B3DF974943E802F6C4D70D2293D3B";s:11:"messageBody";s:738:"{"db"
:{"uid":"100033","app_id":"100270","url":"http:\/\/www.kancloud.cn\/manual\/thinkphp5_1\/354102","title":"\u4eca\u5929\u8fd8\u6ca1\u6709\u7b7e\u5230\u54e6\uff0c\u4e0d\u8981\u5fd8\u8bb0\u4e86\u554a","description":"\u6cd5\u5e08\u6253\u53d1\u65a
f\u8482\u82ac","tid":"100028","push_description":"\u8fd9\u91cc\u63a8\u9001\u63cf\u8ff0"},"push":{"uid":"100033","app_id":"100270","url":"http:\/\/www.kancloud.cn\/manual\/thinkphp5_1\/354102","title":"\u5de5\u4f5c\u901a\u77e5:\u6cb3\u5357\u77
01\u7b2c\u4e00\u4eba\u6c11\u533b\u9662","description":"[\u7b7e\u5230]\u4eca\u5929\u8fd8\u6ca1\u6709\u7b7e\u5230\u54e6\uff0c\u4e0d\u8981\u5fd8\u8bb0\u4e86\u554a","tid":"100028","push_description":"\u8fd9\u91cc\u63a8\u9001\u63cf\u8ff0"},"versio
n":"1"}";s:10:"messageTag";N;}i:1;O:16:"MQ\Model\Message":9:{s:16:"*receiptHandle";s:93:"792BCECC6D5A3D4EAC69389B92570138-MTAgMTU0OTkwMDEyMDA4NyAzMDAwMDAgMyAwIGh6LXNoYXJlMi0wNCAwIDEw";s:14:"*publishTime";s:13:"1549900119639";s:18:"*nextConsum
eTime";s:13:"1549900420087";s:19:"*firstConsumeTime";s:13:"1549900120087";s:16:"*consumedTimes";s:1:"1";s:9:"messageId";s:32:"792BCECC6D5A3D4EAC69389B92570138";s:14:"messageBodyMD5";s:32:"8D7B3DF974943E802F6C4D70D2293D3B";s:11:"messageBody";s
:738:"{"db":{"uid":"100033","app_id":"100270","url":"http:\/\/www.kancloud.cn\/manual\/thinkphp5_1\/354102","title":"\u4eca\u5929\u8fd8\u6ca1\u6709\u7b7e\u5230\u54e6\uff0c\u4e0d\u8981\u5fd8\u8bb0\u4e86\u554a","description":"\u6cd5\u5e08\u6253
\u53d1\u65af\u8482\u82ac","tid":"100028","push_description":"\u8fd9\u91cc\u63a8\u9001\u63cf\u8ff0"},"push":{"uid":"100033","app_id":"100270","url":"http:\/\/www.kancloud.cn\/manual\/thinkphp5_1\/354102","title":"\u5de5\u4f5c\u901a\u77e5:\u6cb
3\u5357\u7701\u7b2c\u4e00\u4eba\u6c11\u533b\u9662","description":"[\u7b7e\u5230]\u4eca\u5929\u8fd8\u6ca1\u6709\u7b7e\u5230\u54e6\uff0c\u4e0d\u8981\u5fd8\u8bb0\u4e86\u554a","tid":"100028","push_description":"\u8fd9\u91cc\u63a8\u9001\u63cf\u8ff
0"},"version":"1"}";s:10:"messageTag";N;}}
data;
        return parent::push($data);
    }

[onanying]

使用以下命令：

ipcs -l

查看你的 linux 的 ipc 的限制信息，由于系统默认消息限制为 8192:

------ Messages Limits --------
max queues system wide = 651
max size of message (bytes) = 8192
default max size of queue (bytes) = 16384

------ Shared Memory Limits --------
max number of segments = 4096
max seg size (kbytes) = 18014398509465599
max total shared memory (kbytes) = 18014398442373116
min seg size (bytes) = 1

------ Semaphore Limits --------
max number of arrays = 128
max semaphores per array = 250
max semaphores system wide = 32000
max ops per semop call = 32
semaphore max value = 32767

所以框架对大于 8000 的消息就做了本地文件缓存，你的系统可能限制是小于 2468，因此导致消息 push 失败。

[Shandawei]

@onanying 谢谢了,可以工作了,mac好像改不了,我把框架长度修改到了2048,不会报错了,谢谢