Elasticsearch itself is becoming less and less open. Lots of features in xpack and most recently also not available if you want to offer it as a service. Due to that I would say opensearch is less about embrace etc than actually being open.

and am looking at adding some sensors connected to Raspberry Pi GPIO. However, if you know how to program things, you do _not_ want them talking to mothership, so both my Hue and WeMos are on a separate wlan SSID which has no connectivity outside; instead, my OpenWrt router runs Python-based daemon ( https://github.com/fingon/kodi... ) which essentially implements zero-touch home automation logic with built-in override from Philips' Tap switch. (and it also chats with my desktop/laptop computer to detect e.g. when I am unidle, and to turn on/off monitor, music playing, and so on..)

I do not really believe in using phone or tablets to deal with 'day to day' events in my home, I prefer buttons (either on WeMo switch, or Philips Tap ones), and automation that sometimes triggers things on it's own. I guess it is a matter of preference..

'what distro' -> SLS -> Slackware -> Caldera -> Debian -> XP -> OS X .. in parallel, on XP/OSX Debian/Ubuntu VMs .. and SunOS / Solaris / *BSD on various other boxes since 1992 as well (and had to professionally deal with stuff like HP-UX, Digital UNIX, and other atrocities. *brr*)

I really recommend ZFS for that - RAID5 is inferior to RAIDZ, not to even mention RAIDZ2 (allows for blowing up two disks). Also has built-in scrubbing functionality and metric ton of other nice features.

If I was storing that amount of data, I'd just throw say, ~16 2TB drives at it, make 2 RAIDZ2 pools out of it (thus, 6 out of 8 drives in each actually used for storage, two for parity ), and have 24TB of capacity, out of which 2 drives could blow/get corrupted and still no problems, and in best case it would even survive explosion of 4 drives ;)

Heh, sounds like lot of work. Working as a reasonably well paid consultant, I don't really want to do much hacking on my free time, but I wanted a quiet setup as well.

My approach: Mac Mini + SSD main machine.
Secondary storage: FreeBSD ZFS + RAIDZ2 (SSD cache drive + couple of spinning disks) NAS for video + backups of Mini.

As I don't deal with video much, NAS is mostly turned off, and all I need is one WOL packet to fire it up and mount on the Mini as needed. Win-win.

(Ok, other hardware in the house like gaming PC, laptop, etc also can access NAS as needed ..)

The file contains only unique wifi spots seen over time period, each once. In my case, that is 12k different wifi basestations, but any repeated travel is unlikely to see those points again..

mini ~/temp/x/library/caches/locationd>sqlite3 consolidated.db 'select * from WifiLocation' | wc
      11907 23814 257383
mini ~/temp/x/library/caches/locationd>sqlite3 consolidated.db 'select * from WifiLocation' | cut -d '|' -f 1 | sort | uniq -c | egrep -v ' 1 '
mini ~/temp/x/library/caches/locationd>

Nothing to see here, move on..

Maybe open source mp3 player software crashes; I have used iTunes since 2002 and it hasn't crashed yet..
That reminds me, this much vaunted Songbird thing (admittedly 0.7) AND Amarok have both crashed on me this year.. :-p Maybe this is the open-source 'feature' I'm missing by using iTunes as my main player?

I've also used various Ubuntus on non-Mac PCs as long as there _has_ been Ubuntus, and especially Kubuntu gets the points for most in-the-box application crashes per version..

(Yes, I know they share the packages in general, but default application set of ubuntu/kubuntu/xubuntu doesn't have much in common and I like to do minimal installs that have just the default apps to play with them at times.)