7/29/2023 0 Comments Monit github![]() It already manages the majority of core services on Ubuntu machines, so chances are, you're already relying on 100% uptime from Upstart.īefore we dive into the actual Upstart config file, do note that this is for Ubuntu 10.04 LTS and thus an old version of Upstart itself. Try getting SysV to do that! On top of this, Upstart is completely reliable. Not only is the Upstart script vastly simpler, but Upstart will also make sure the process stays running! If ssh dies for whatever reason, Upstart will know and will restart the service almost immediately. If you're curious just how much easier it is compared to SysV, check out the difference between Upstart's SSH and the SysV SSH script (from Ubuntu 10.04). It knows what you need to do, lets you do it very simply, and it doesn't get in your way. This service is the culmination of decades of system administration experience. If you've ever dreaded writing yet another SysV init script and making sure your service handles it's own daemonizing, Upstart is the answer to all of your prayers. In short, Upstart manages your system, mainly through keeping services running but also through managing important system configurations. If you're running any recent Ubuntu build even as early as 10.04 LTS, you are already running Upstart. ![]() Upstart has actually been around for a number of years. From the reports I've heard so far (via Issue #81) REE 2012.02 doesn't fix the segfault problem, so it's time to move away from Ruby-based solutions entirely. Most of the time this crash would leave the Resque workers running and god.rb would pick up where it left off, but sometimes it took everything down in the crash. With that upgrade, god.rb started very randomly segfaulting somewhere deep inside of Thread. This worked well enough until we had to upgrade our REE install to 2011.12 to close the String#hash security hole. We quickly realized that we couldn't expect the god process itself to always stay alive, so we hooked up Monit to monitor god (you can imagine how many jokes this spawned.). ![]() I've come to believe that any tool that tries to handle both process management and monitoring and alerting is trying to do too much and can't satisfactorily do either.Īt Bloomfire we've been using god.rb to manage and monitor our Resque workers for a while now, but it's never been great. There have been numerous attempts to solve this problem, including god.rb, Monit, bluepill, resque-pool and foreman, but from my experience all of these solve only 90% of the problem, and that last 10% is guaranteed to cause you pain either through fragility, complicated configuration, or not alerting properly when your workers disappear. What isn't easy, though, is managing and monitoring your Resque workers in production. It really couldn't be easier for how scalable and robust the library is. It's simple to set up and to integrate into your code, only requiring Redis for the queue, and runs through a single rake task from the command line. Resque, the unix-y process and child based background worker library from Github, is a joy to use. See my latest: Managing Resque with Upstart. « Home Manage and Monitor Reque with Upstart an Monit ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |