Categories
linux sysadmin

adventures with cgroups for resource control

What? Control Groups aka cgroups – see the docs . Resource control and monitoring. Some examples follow for throttling i/o speed(s) for a process control group (cgroup).

Categories
bash sysadmin

Avoiding unnecessary commands in bash….

Some alternative bash things…. ( avoiding unneecessary use of cat / awk / grep …. )

Categories
Twitter

Automated twitter compilation up to 08 November 2015

Arbitrary tweets made by TheGingerDog up to 08 November 2015

Categories
Twitter

Automated twitter compilation up to 25 October 2015

Arbitrary tweets made by TheGingerDog up to 25 October 2015

Categories
Twitter

Automated twitter compilation up to 11 October 2015

Arbitrary tweets made by TheGingerDog up to 11 October 2015

Categories
debian linux mysql performance

MySQL Max_connections stuck on 214 ?

I found MySQL was being annoying earlier and not ‘accepting’ my max_connections = 450 directive on a Debian Wheezy install, and being seemingly stuck on having 214 connections….

Categories
Twitter

Automated twitter compilation up to 01 February 2015

Arbitrary tweets made by TheGingerDog up to 01 February 2015

Categories
debian linux

BTRFS gotchas… (balance / scrub / snapshots / quota)

I’ve been using BTRFS for a few weeks now, and some bits are great (filesystem snapshots, dynamic resizing etc). The “Good” and “Bad” things follow:

Categories
Twitter

Automated twitter compilation up to 30 November 2014

Arbitrary tweets made by TheGingerDog up to 30 November 2014

Categories
Twitter

Automated twitter compilation up to 16 November 2014

Arbitrary tweets made by TheGingerDog up to 16 November 2014