Here’s a previous question and answers: Do you continue to use your end-of-life server/network equipment? And another one: How often does your company replace all its servers? At 5 years, for what sounds like mission-critical functions, I’d start looking at replacement even if they’re working fine. But since they are working fine, I’d plan out … Read more
Check out the following two projects: batsd batsd-dash batsd is a daemon for aggregating and storing statistics, while batsd-dash is a configurable dashboard the present the data you have stored in batsd. About batsd Batsd is a ruby-based daemon for aggregating and storing statistics. It targets “wireline” compatibility with Etsy’s StatsD implementation, which they described … Read more
This has been a request to the GlusterFS developers for a while now and there is nothing out-of-the-box solution you can use. However, with a few scripts it’s not impossible. Pretty much entire Gluster system is managed by a single gluster command and with a few options, you can write yourself health monitoring scripts. See … Read more
WatchDISK does exactly that — shows directory sizes over time. WatchDISK’s big brother, PA Storage Monitor does that plus more (besides tracking just directory sizes, it can tell you who the largest storage users are, where the MP3s are, etc).
Try the watch command: watch -n 10 ls -l /proc/$$/fd Watch is nice. You could use an old school while loop: while : do ls -l /proc/$$/fd sleep 10 done watch is in the procps package on debian based systems and the procps rpm on RedHat derived systems.
Linux load is actually simple. Each of the load avg numbers are the summation of all the core’s avg load. Ie. 1 min load avg = load_core_1 + load_core_2 + … + load_core_n 5 min load avg = load_core_1 + load_core_2 + … + load_core_n 15 min load avg = load_core_1 + load_core_2 + … … Read more
whisper-info.py gives you a lot of insight into what and how each file is aggregated, including the file’s size. However it’s only useful for existing whisper files. When you want to see predictive sizing of a schema before putting it in place, try a Whisper Calculator, such as the one available at https://gist.github.com/jjmaestro/5774063 EDIT: When … Read more
You can disable this alert by setting up a local alert statement. This is thoroughly documented here: http://mmonit.com/monit/documentation/monit.html#setting_a_local_alert_statement This should do it: check process blop with pidfile /…/blop.pid alert recipient@address.com but not on { pid } start program = “…” stop program = “…”
You can use the auditd framework for these kind of things. They’re not very “user friendly” or intuitive, so requires a little bit of digging around on your part. First make sure you have auditd installed, running and that your kernel supports it. For Ubuntu you can install it with apt-get install auditd for example. … Read more
This is the way I use these words. Others may have additional or different usages. Depending on the job at hand, I will use the terms differently. Development teams and operations teams have different needs an usage. Monitoring is monitoring. Usually it is ongoing, and preferably automated. Open source tools like Munin, Nagios, and MRTG … Read more