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Textalk / websocket-php

WebSocket client and server in PHP
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fwrite error on version 1.2.0 #54

Closed nussbaumer-dominik closed 6 years ago

nussbaumer-dominik commented 6 years ago

getting this error message when continually sending one command every 2 seconds: fwrite(): send of 15 bytes failed with errno=32 Broken pipe in /var/www/html/Mediatrix/php/vendor/textalk/websocket/lib/Base.php on line 179 PHP Fatal error: Uncaught WebSocket\ConnectionException: Could only write 0 out of 15 bytes. in /var/www/html/Mediatrix/php/vendor/textalk/websocket/lib/Base.php:182

sod commented 6 years ago

Could you fix it?

nussbaumer-dominik commented 6 years ago

yes the error was caused by another issue unrelated to this library...

Am Fr., 27. Apr. 2018 um 14:15 Uhr schrieb Alexander von Weiss < notifications@github.com>:

Could you fix it?

— You are receiving this because you modified the open/close state. Reply to this email directly, view it on GitHub https://github.com/Textalk/websocket-php/issues/54#issuecomment-384952734, or mute the thread https://github.com/notifications/unsubscribe-auth/AVAKEzAglqTU1s1FzJbOGo7THcG1EPT5ks5tswvmgaJpZM4TLc5Q .

-- Dominik Nußbaumer

sod commented 6 years ago

Are you able to share more information? I'd appreciate it.

We hit this issue on CI, but it's not reproducable locally. So I guess something on the server is interrupting the socket.

nussbaumer-dominik commented 6 years ago

Ok. In our diploma thesis we created a unified interface to control the different devices for presentations. These devices include a projector, an AV-Receiver, a mixer and DMX Lighting. We communicate via three technologies: Infrared, DMX and WebSockets. Since the volume on the AV-Receiver can only be increased or decreased - we start by sending commands until it has reached 0. Meanwhile the connection with the mixer has to be kept alive by sending a specific command every second over your WebSocket client library. When the infrared diode is finished the websocket library isn't able to send for a couple of seconds and when it starts sending again the connection has already been terminated by the mixer and the fwrite error gets thrown because nothing was transmitted.

I hope this helps you.

Am Fr., 27. Apr. 2018 um 14:28 Uhr schrieb Alexander von Weiss < notifications@github.com>:

Are you able to share more information? I'd appreciate it.

We hit this issue on CI, but it's not reproducable locally. So I guess something on the server is interrupting the socket.

— You are receiving this because you modified the open/close state. Reply to this email directly, view it on GitHub https://github.com/Textalk/websocket-php/issues/54#issuecomment-384955453, or mute the thread https://github.com/notifications/unsubscribe-auth/AVAKE8cu82E7b5GW5R6-8RdkBl5EEMgGks5tsw7ugaJpZM4TLc5Q .

-- Dominik Nußbaumer

Berdir commented 6 years ago

We also saw this, used through https://gitlab.com/DMore/chrome-mink-driver.

In our case, the problem was simply that the chrome process had been terminated.