From: Eric LIn <ericlin852@...>
Date: 2008-05-31T08:03:56+09:00
Subject: Unbuffered output with Logger (newbie question)

I'm trying to use Ruby's built-in Logger facility, and I'm not able to
make it output log messages in real-time.  Instead, log messages are
only outputted when I call Logger#close.

The Logger is created with a line like this:

   log = Logger.new(File.open('test.log', File::WRONLY | File::APPEND
| File::CREAT))

Then I log things using lines like:

   log.info('hello')

tail -f test.log shows nothing.

It's only when I call "l.close" that all the log messages get written
out.

My suspicion is I'm not instantiating File correctly.  Perhaps there
is an option for unbuffered output?

Any help appreciated.

Eric