Just got this running on my box pointing at all our servers, so far it's looking good! The only hiccup for me was that it expected the yaml file to be in /etc and I was just editing it in place. Paying attention to the error message made it pretty obvious what I did wrong though.
Jay dormando wrote: > Yo, > > I couldn't sleep, so: > http://github.com/dormando/damemtop > (or: http://consoleninja.net/code/memcached/damemtop-0.1.tar.gz) > > Early release of a utility I've been working on in the last few days. Yes, > sorry, I'm aware this makes /four/ memcached top programs. So, I had to > make mine awesome. > > In order to be truly awesome, I need to spend another day working on it to > add a few things, but it's in a state now where it can be useful to > people. So, up it goes, and I'll take feedback/ideas/patches. > > In short, it's a top utility which lets you take any stat memcached spits > out from 'stats', 'stats items', or 'stats slabs', and display it in a > 'top' like interface. With totals, averages, etc. It also supports > "computed" columns, hit_rate, fill_rate, soon to be many more. Finally, > you can choose an arbitrary column to sort the output. I have more > memcached's than will fit on a stretched out terminal, so it's nice to be > able to sort :) > > In order to change the display around you'll need to edit the > damemtop.yaml file (example included). Also in order to run it at all > you'll need to install AnyEvent and YAML CPAN modules. I'm brutally aware > of adversity for installing simple modules, but these are in very common > use, and AnyEvent allows the utility to scale to hundreds of instances. It > takes 0.2 seconds to poll every single stat and display against TypePad's > entire cluster. > > Upcoming ideas/features: > - a '--helpme' mode that makes a big YAML dump folks can share with the > mailing list to expediate assistance. > - many more computed columns. > - a "drill down" mode for exploring a single or custom set of instances. > - a "slabs" mode for easy analysis and aggregation of the individual slab > stats. > - online config editing. > - more formatting. "shorteners" for large numbers. bytes -> K -> M -> > G/etc. > - better docs, more fleshed out config loader. > - scrolling output modes. > - multi-cluster support (switch views between groups of servers) > - rolling averages for some views. > - latency monitor (testing a bunch of commands) > - YAML output/input modes for logging, output into monitoring/graphing > systems, input into multiple 'damemtop' listeners. > - pretty colors. > - reorganize code a little. It got messier than I like :/ > > Dunno... stuff? Maybe a quickie mode that can give you warnings or notes > about your configuration based on current stats? I'll work on this for a > few hours each week and kick out a new version for a month or so. I don't > expect (nor want) it to reach the complexity of something like innotop. > > The intent for this module to replace the 'scripts/memcached-tool' > program, and be distributed with memcached itself. > > have fun, > -Dormando
