God leaks memory pretty badly so I chose Monit for my VPS. Monit runs at about 2MB of RAM constantly, whereas my god install running on Ruby 1.8.6 leaked out to about 60MB of RAM in about 36 hours. I didn’t want to monitor my system monitoring tool so I scrapped God and went over … Read more
I’m working on an MIT-licensed library that helps Python programs monitor file system events as portably as possible. There are differences that I’m trying to iron out. Highly alpha version at the moment: Check it out here: http://github.com/gorakhargosh/watchdog/ Patches and contributions are welcome.
TCPDUMP is one of my favourite tools for analyzing network, but if you find difficult to cross-compile tcpdump for android, I’d recomend you to use some applications from the market. These are the applications I was talking about: Shark: Is small version of wireshark for Android phones). This program will create a *.pcap and you … Read more
Instead of LoggingEventHandler define your handler: #!/usr/bin/python import time from watchdog.observers import Observer from watchdog.events import FileSystemEventHandler class MyHandler(FileSystemEventHandler): def on_modified(self, event): print(f’event type: {event.event_type} path : {event.src_path}’) if __name__ == “__main__”: event_handler = MyHandler() observer = Observer() observer.schedule(event_handler, path=”/data/”, recursive=False) observer.start() try: while True: time.sleep(1) except KeyboardInterrupt: observer.stop() observer.join() on_modified is called when a … Read more
Take a look at this PDF starting at page 38, ~slide I-77 and you’ll find all the info you need. Of course the rest of the slides are amazing, too, but those specifically deal with your issue: import time def follow(thefile): thefile.seek(0,2) # Go to the end of the file while True: line = thefile.readline() … Read more
I like tools that will perform more than one task, Notepad++ is a great notepad replacement and has a Document Monitor plugin (installs with standard msi) that works great. It also is portable so you can have it on a thumb drive for use anywhere. For a command line option, PowerShell (which is really a … Read more
Nagios is good, it’s good to maybe have system testing (Selenium) running regularily. Edit: Hyperic and Groundwork also look interesting. There is probably a test suite system that can keep pressure testing everything as well for you. I can’t remember the name off the top of my head, maybe someone can mention one below. Other … Read more
If you want to really look at what is going on in the VM memory you should use a good tool like VisualVM. This is Free Software and it’s a great way to see what is going on. Nothing is really “wrong” with explicit gc() calls. However, remember that when you call gc() you are … Read more
There are several ways to do this depending on the platform. I would choose from the following choices: Cross Platform Trolltech’s Qt has an object called QFileSystemWatcher which allows you to monitor files and directories. I’m sure there are other cross platform frameworks that give you this sort of capability too, but this one works … Read more
In the interests of completeness there are a couple of other solutions which (in my opinion) are more orthodox than solutions relying on the SqlDependency (and SqlTableDependency) classes. SqlDependency was originally designed to make refreshing distributed webserver caches easier, and so was built to a different set of requirements than if it were designed as … Read more