flush

How do I set flush mode to “COMMIT” in my configuration files?

|▌冷眼眸甩不掉的悲伤 提交于 2019-11-29 07:14:16
I'm using Spring 3.1.1.RELEASE, Hibernate 4.1.0.Final, and JPA 2.0. Is there a way I can configure Spring transactions to commit after the transactions are executed without Java code? In other words, I would like to set flush mode to commit in either the application context file, hibernate configuration file, or persistence.xml file. My Spring transaction service class looks like @Transactional(rollbackFor = Exception.class) @Service public class ContractServiceImpl implements ContractService { @Autowired private ContractDAO m_contractDao; public void addContract(Contract contract) { m

std::endl crashes Windows 8, compiled using MinGW

你说的曾经没有我的故事 提交于 2019-11-29 04:01:59
I have 3 computers, two of which use Windows 8. Using the latest version of MinGW's g++ (4.8.1-4) my hello world program freezes whenever I compile and run on the Windows 8 computers but not in Windows 7. #include <iostream> int main() { std::cout << "Hello, World!" <<std::endl; return 0; } This compiles just fine in g++ but running a.exe will display "Hello, World!" then a window will pop up and say "a.exe has stopped working, Windows can check online for a solution to the program...." etc. Has anybody seen this problem. Also, I tried "std::cout << "Hello, World!\n" << std::flush;" and this

How can I flush the output of disp in Matlab or Octave?

送分小仙女□ 提交于 2019-11-29 02:08:34
问题 I have a program in Octave that has a loop - running a function with various parameters, not something that I can turn into matrices. At the beginning of each iteration I print the current parameters using disp . The first times I ran it I had a brazillion warnings, and then I also got these prints. Now that I cleaned them up, I no longer see them. My guess is that they're stuck in a buffer, and I'll see them when the program ends or the buffer fills. Is there any way to force a flush of the

How to prevent BrokenPipeError when doing a flush in Python?

落爺英雄遲暮 提交于 2019-11-29 01:50:15
问题 Question: Is there a way to use flush=True for the print() function without getting the BrokenPipeError? I have a script pipe.py : for i in range(4000): print(i) I call it like this from a Unix command line: python3 pipe.py | head -n3000 And it returns: 0 1 2 So does this script: import sys for i in range(4000): print(i) sys.stdout.flush() However, when I run this script and pipe it to head -n3000 : for i in range(4000): print(i, flush=True) Then I get this error: print(i, flush=True)

Do you need to call Flush() on a stream or writer if you are using the “using” statement?

喜你入骨 提交于 2019-11-28 21:03:40
I am not sure whether I need to call Flush() on the used objects if I write something like this: using (FileStream...) using (CryptoStream...) using (BinaryWriter...) { // do something } Are they always automatically flushed? When does the using statement flush them and when it doesn’t (if that can happen)? Davide Piras As soon as you leave the using block’s scope, the stream is closed and disposed. The Close() calls the Flush(), so you should not need to call it manually. It varies, Stream by default does not call Flush() in the Dispose method with a few exceptions such as FileStream . The

Does python logging flush every log?

谁说我不能喝 提交于 2019-11-28 17:24:05
When I write a log to file using the standard module logging , will each log be flushed to disk separately? For example, will the following code flush log by 10 times? logging.basicConfig(level=logging.DEBUG, filename='debug.log') for i in xrange(10): logging.debug("test") if so, will it slow down ? Bakuriu 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): """

Is there a way to programmably flush the buffer in log4net

你。 提交于 2019-11-28 17:23:31
I'm using log4net with AdoNetAppender. It's seems that the AdoNetAppender has a Flush method . Is there anyway I can call that from my code? I'm trying to create an admin page to view all the entries in the database log, and I will like to setup log4net with bufferSize=100 (or more), then I want the administrator to be able to click an button on the admin page to force log4net to write the buffered log entries to the database (without shutting down log4net). Is that possible? Assuming you're using log4net out of the box, you can dig your way down & flush the appender like this: public void

Netty5_内存管理_源码讲解

佐手、 提交于 2019-11-28 15:55:14
欢迎大家关注我的微博 http://weibo.com/hotbain 会将发布的开源项目技术贴通过微博通知大家,希望大家能够互勉共进!谢谢!也很希望能够得到大家对我博文的反馈,写出更高质量的文章!! read事件发生,Netty需要从内核中读取数据到自己内部可以管辖的缓冲区,怎么进行分配?使用完毕后,怎么释放?已经write方法调用,怎样将相应数据进行缓冲区分配,以及write事件发生,flush完成后,怎样将缓冲区释放? read内存分配 要知道read是怎样进行进行内存分配的首先要知道是什么进行分配的,分配完之后,怎么进行内存回收?每次分配新的ByteBuf大小是多少? 分配内存:假设是初次进行分配(同一个socket多次进行分配的情况,后面会讲到.),我们看一下是什么时候进行分配的.上代码: int byteBufCapacity = allocHandle.guess(); int totalReadAmount = 0; do { //可能是 direct或者 heap 从与当前socket相关的allocator得到byteBuf数组 // byteBuf =allocHandle.allocate(allocator); byteBuf = allocator.ioBuffer(byteBufCapacity); int writable = byteBuf

PHP flushing output as soon as you call echo

▼魔方 西西 提交于 2019-11-28 11:48:25
问题 I thought flush(); would work, at least from what Google/Stackoverflow tell me, but on my Windows WAMP (Windows, Apache, MySQL, PHP) system it doesn't work. Is there some PHP setting I have to set to make flush() work? Here's my code: <?php echo "Fun"; flush(); sleep(5); echo "<br>Mo"; ?> The code just outputs all together when the script is done executing (after 5 seconds).. I don't want this, I want 'Fun' to show up right away, and then after 5 seconds 'Mo'. I've tried other combinations of

Why fprintf doesn't write directly into the file unless fflush() is used?

半腔热情 提交于 2019-11-28 11:40:32
问题 I have written a daemon that writes a value in a file. What I have observed is that when I keep writing on a file, there is nothing visible in the file. in other hand, If I use fflush() method then the characters are visible in the file. Why fflush() makes a difference? 回答1: Because it's buffered . That means all writes are stored in a buffer in memory until the buffer is flushed. For printf and friends it's when it has either a newline, or you explicitly call fflush , or of course if the