Predis 给出“从服务器读取行时出错" [英] Predis is giving 'Error while reading line from server'

问题描述

我正在使用 predis 并且它订阅了一个频道并在听，它抛出错误并死了，如下所示，大约 60 秒后，它肯定不是我的 Web 服务器错误或其超时.

I am using predis and its subscribed to a channel and listening, it throws the error and die , shown below, after 60 secs exaxtly, its surely not my web server error or its timeout.

此处正在讨论类似的问题.不能得到太多.

There is a similar issue being discussed here. Could not get much of it.

我尝试将 predis conf 文件中的 connection_timeout 设置为 0，但没有太大帮助.

I tried setting connection_timeout in predis conf file to 0, but doesn't helps much.

此外，如果我继续使用(向其发送数据并处理)工作人员，它也不会出现任何错误.所以它可能是某个地方的超时，这也与连接有关.

Also if i keep using (send data to it and it processes) the worker it doesn't give any error. So its likely a timeout somewhere, and that too in connection.

这是我的代码片段，它可能会产生错误，因为如果将数据提供给工作人员，它会运行此代码并继续前进，之后不会产生任何错误.

Here is my code snippet, which is likely producing error, because if data is given to worker it runs this code and go forward, which produces no error after that.

$pubsub = $redis->pubSub();
$pubsub->subscribe($channel1);

foreach ($pubsub as $message) { //doing stuff here and unsubscribing from channel
}

跟踪

PHP Fatal error:  Uncaught exception 'Predis\Network\ConnectionException' with message 'Error while reading line from the server' in Predis/Network/ConnectionBase.php:159 Stack trace:
#0 library/vendor/predis/lib/Predis/Network/StreamConnection.php(195): Predis\Network\ConnectionBase->onConnectionError('Error while rea...')
#1 library/vendor/predis/lib/Predis/PubSub/PubSubContext.php(259): Predis\Network\StreamConnection->read()
#2 library/vendor/predis/lib/Predis/PubSub/PubSubContext.php(206): Predis\PubSub\PubSubContext->getValue()
#3 pdf/file.php(16): Predis\PubSub\PubSubContext->current()
#4 {main}   thrown in Predis/Network/ConnectionBase.php on line 159

也检查了 redis.conf 超时，它也被禁用了.

Checked the redis.conf timeout too, its also disabled.

推荐答案

只需将 read_write_timeout 连接参数设置为 0 或 -1 即可解决此问题.例如

Just set the read_write_timeout connection parameter to 0 or -1 to fix this. e.g.

$redis = new Predis\Client('tcp://10.0.0.1:6379'."?read_write_timeout=0");

设置连接参数在自述文件中记录.Redis 的作者在 an issue 中指出了 read_write_timeout 参数与此错误的相关性在 GitHub 上，他指出:

Setting connection parameters is documented in the README. The author of Redis noted the relevance of the read_write_timeout parameter to this error in an issue on GitHub, in which he notes that:

如果您在类似守护进程的脚本中使用 Predis，如果您想完全禁用超时，您应该将 read_write_timeout 设置为 -1(此值适用于较旧的和较新版本的 Predis).另外，请记住，您必须通过在 redis.conf 或 Redis 将在 300 秒不活动后断开空闲客户端的连接.

If you are using Predis in a daemon-like script you should set read_write_timeout to -1 if you want to completely disable the timeout (this value works with older and newer versions of Predis). Also, remember that you must disable the default timeout of Redis by setting timeout = 0 in redis.conf or Redis will drop the connection of idle clients after 300 seconds of inactivity.

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