I guess I did it wrong … See here

… appears to be normal working hours from a location that is not your office, home … I am supposed to be on vacation. A short one, as there are simply far too many things on my plate (notice my recent posting frequency?). Instead, I am trying to solve problems for customers, sign NDAs, handle support calls. What was the purpose of vacation or holiday again? I keep forgetting.

I tried the nodejs version and … well … it was horrible. Basic things didn’t work. Made life very annoying. So, being a good engineering type, I wrote my own. It will be up on our site soon. Here’s an example ./influxdb-cli.pl --host 192.168.5.117 --user test --pass test --db metrics metrics> \list series .----------------------------------. | series name | +----------------------------------+ | lightning.cpuload.avg1 | | lightning.cputotals.idle | | lightning.cputotals.irq | | lightning.

I had forgotten to mention, but we hit our 12 year mark on the 1st of August. We’ve grown from a small “garage” based company (really “basement-based” in Michigan, as garages aren’t heated in winter, nor cooled in summer here), with one guy doing consulting, cluster system builds, tuning, benchmarking, white paper writing … to a 10 person outfit building the worlds fastest and densest tightly coupled storage and computing systems.

I am working on updating our FastPath appliance web management/monitoring gui for the day job. Trying to push data into databases for later analysis. Many tools have been written on the collection side, statsd, fluentd, … and some are actually pretty cool. The concern for me is the way these tools express their analytical and storage opinions, which is done on the storage side. The data collection side isn’t an issue, if anything, its a breath of fresh air relative to what else I’ve seen.

This has been a point of contention for us for years. Our office has multiple network attachments, using Comcast is part of it. This is the main office, not the home office. Latency on the link, as measured by DNS pings, have always been fairly high, in the multiple 2-3ms region, as compared to our other connection (using a different provider and a different technology) which has been consistently, 0.5ms for the last 2 years.

From kernel.org

Probably on Ivy Bridge as well. Short version. The pauses that plagued Nehalem and Westmere are baaaack. In RHEL/CentOS 6.5 anyway. A customer just ran into one. We helped diagnose/work around this a few years ago when a hedge fund customer ran into this … then a post-production shop … then … Basically the problem came in from the C-states. The deeper the sleep state, in some instances, the processor would not come out of it, or get stuck in the lower levels.

yum remove tuned tuned-utils This isn’t quite as bad as THP, but its close.

This is one of our engineering prototypes that we had to clear space for. A couple of new features I’ll talk about soon, but you should know that these are 12g SAS machines (will do 6g SATA of course as well). Front of unit: [ ](/images/IMG_2330.JPG) Note the new logo/hand bar. The rails are also brand new, and are set to enable easy slide in/out even with 100+ lbs of disk in them.