fwrite(): send of 4 bytes failed with errno=32 Broken pipe

[webocoders]

Sometimes I have an error in vendor/react/stream/src/Buffer.php (line:86)
fwrite(): send of 4 bytes failed with errno=32 Broken pipe

in this line:
$sent = fwrite($this->stream, $this->data);

What should I do? Thanks.

Info:

PHP version 5.6.26.

composer show -i:

cboden/ratchet v0.3.5 PHP WebSocket library
evenement/evenement v2.0.0 ├Йv├йnement is a very simple event dispatching library for PHP
guzzle/common v3.9.2 Common libraries used by Guzzle
guzzle/http v3.9.2 HTTP libraries used by Guzzle
guzzle/parser v3.9.2 Interchangeable parsers used by Guzzle
guzzle/stream v3.9.2 Guzzle stream wrapper component
monolog/monolog 1.21.0 Sends your logs to files, sockets, inboxes, databases and various web services
psr/log 1.0.2 Common interface for logging libraries
react/event-loop v0.4.2 Event loop abstraction layer that libraries can use for evented I/O.
react/socket v0.4.3 Library for building an evented socket server.
react/stream v0.4.4 Basic readable and writable stream interfaces that support piping.
react/zmq v0.3.0 ZeroMQ bindings for React.
symfony/event-dispatcher v3.1.6 Symfony EventDispatcher Component
symfony/http-foundation v3.1.6 Symfony HttpFoundation Component
symfony/polyfill-mbstring v1.2.0 Symfony polyfill for the Mbstring extension
symfony/routing v3.1.6 Symfony Routing Component

[cboden]

Can you provide more of the stack trace? The is an error that shows up in your logs but everything continues to work, correct?

The error message is when a peer attempts to send data over a closed connection. Odds are this is just the result of a race condition that can be ignored. (The client closed the connection just as the server was sending it data).

[webocoders]

Stack trace:

#0 [internal function]: React\Stream\Buffer->handleWrite(Resource id #171646, Object(React\EventLoop\StreamSelectLoop))
#1 /var/www/myproject.com/protected/ratchet/vendor/react/event-loop/src/StreamSelectLoop.php(240): call_user_func(Array, Resource id #171646, Object(React\EventLoop\StreamSelectLoop))
#2 /var/www/myproject.com/protected/ratchet/vendor/react/event-loop/src/StreamSelectLoop.php(201): React\EventLoop\StreamSelectLoop->waitForStreamActivity(NULL)
#3 /var/www/myproject.com/protected/ratchet/bin/push-server.php(33): React\EventLoop\StreamSelectLoop->run()
#4 {main}

The is an error that shows up in your logs but everything continues to work, correct?

Yes, if an error occurs, the work does not stop.

[cboden]

Try updating your dependencies. There was some logic change in the last update reactphp/stream with writing to stream buffers. (reactphp/stream@v0.4.4...v0.4.5).

Also take a look at this unit test which is testing the exact error you received. The test is writing to a closed stream and expecting the error you received back. This is what leads me to believe this is an error you can ignore.