The easiest way to eliminate nginx’s buffering is by emitting a header: header(‘X-Accel-Buffering: no’); This eliminates both proxy_buffering and (if you have nginx >= 1.5.6), fastcgi_buffering. The fastcgi bit is crucial if you’re using php-fpm. The header is also far more convenient to do on an as-needed basis. Docs on X-Accel-Buffering Docs on fastcgi_buffering
No, it does not.
The BrokenPipeError is normal as said phantom because the reading process (head) terminates and closes its end of the pipe while the writing process (python) still tries to write. Is is an abnormal condition, and the python scripts receives a BrokenPipeError – more exactly, the Python interpreter receives a system SIGPIPE signal that it catches … Read more
Stefan S. said: I understand that .NET FileStream’s Flush method only writes the current buffer to disk No, .NET FileStream’s Flush only writes the .NET buffers to the OS cache, it does not flush the OS cache to disk. Sadly the MSDN doc on this class doesn’t say that. For .NET < 4.0, you’ll have … Read more
So that’s what I found out: Flush would not work under Apache’s mod_gzip or Nginx’s gzip because, logically, it is gzipping the content, and to do that it must buffer content to gzip it. Any sort of web server gzipping would affect this. In short, at the server side, we need to disable gzip and … Read more
Output is generally buffered before it’s written to the intended device. That way, when writing to slow to access devices(like files), it doesn’t have to access the device after every single character. Flushing means emptying the buffer and actually writing it to the device.
I found a solution to this here. Using the OP’s example you basically run stdbuf -oL /homedir/MyScript &> some_log.log and then the buffer gets flushed after each line of output. I often combine this with nohup to run long jobs on a remote machine. stdbuf -oL nohup /homedir/MyScript &> some_log.log This way your process doesn’t … Read more
In Python 3, print can take an optional flush argument: print(“Hello, World!”, flush=True) In Python 2, after calling print, do: import sys sys.stdout.flush() By default, print prints to sys.stdout (see the documentation for more about file objects).
Just insert std::flush: std::cout << “Beginning computations…” << std::flush; Also note that inserting std::endl will also flush after writing a newline.
ob_flush sends an application-initiated buffer. There may be multiple nested ob_start()‘s in any PHP script. ob_flush passes the current content to the upper layer. PHP itself might (at its own discretion) buffer output. This depends on the back-end. But usually FastCGI has a socket buffer on its own. Therefore flush() needs to be invoked as … Read more