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
Assuming you’re using log4net out of the box, you can dig your way down & flush the appender like this: public void FlushBuffers() { ILog log = LogManager.GetLogger(“whatever”); var logger = log.Logger as Logger; if (logger != null) { foreach (IAppender appender in logger.Appenders) { var buffered = appender as BufferingAppenderSkeleton; if (buffered != null) … Read more
I’ve gotten the same issue and one of the posted example in the manual worked. A character set must be specified as one of the posters here already mentioned. http://www.php.net/manual/en/function.ob-flush.php#109314 header( ‘Content-type: text/html; charset=utf-8’ ); echo ‘Begin …<br />’; for( $i = 0 ; $i < 10 ; $i++ ) { echo $i . ‘<br … Read more
Yes, it does flush the output at every call. You can see this in the source code for the StreamHandler: def flush(self): “”” Flushes the stream. “”” self.acquire() try: if self.stream and hasattr(self.stream, “flush”): self.stream.flush() finally: self.release() def emit(self, record): “”” Emit a record. If a formatter is specified, it is used to format the … Read more
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
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
Consider writing to a file. This is an expensive operation. If in your code you write one byte at a time, then each write of a byte is going to be very costly. So a common way to improve performance is to store the data that you are writing in a temporary buffer. Only when … Read more
From the docs of the flush method: Flushes the output stream and forces any buffered output bytes to be written out. The general contract of flush is that calling it is an indication that, if any bytes previously written have been buffered by the implementation of the output stream, such bytes should immediately be written … Read more
Briefly: Always use transactions Don’t use Close(), instead wrap your calls on an ISession inside a using statement or manage the lifecycle of your ISession somewhere else. From the documentation: From time to time the ISession will execute the SQL statements needed to synchronize the ADO.NET connection’s state with the state of objects held in … Read more
For file operations, Python uses the operating system’s default buffering unless you configure it do otherwise. You can specify a buffer size, unbuffered, or line buffered. For example, the open function takes a buffer size argument. http://docs.python.org/library/functions.html#open “The optional buffering argument specifies the file’s desired buffer size:” 0 means unbuffered, 1 means line buffered, any … Read more