Favorite Linux tools for HANA

[Former Member]

Interested in your favorite Linux tools on your HANA appliance. Please share! Note that I mean those that are not installed by default and you need to grab from the web.

1) p7zip http://p7zip.sourceforge.net

p7zip allows you to compress files larger than 32GB, which is very handy. Plus, it has some parallel algorithms for compression which can speed things up.

2) pigz http://zlib.net/pigz/

pigz is AWESOME! Thanks to ethan.jewett for introducing me. It requires zlib from http://zlib.net and pthreads and it has a completely parallel algorithm for GNU zip (gz) and it is gzip/gunzip compatible. It can compress files 40x faster on a 40 core machine! Unfortunately it doesn't decompress any faster, though that is quick on most systems.

3) rar http://www.rarlab.com/download.htm

Get the Linux version of RAR for very good compression... but slow speeds.

4) iotop http://guichaz.free.fr/iotop/

iotop allows you to look at I/O processes in a HANA system. Very handy to measure load performance.

5) iftop http://www.ex-parrot.com/pdw/iftop/

iftop is very handy when you need to see intra-node traffic in a HANA scale-out cluster. It shows network traffic.

6) GNU Parallel http://www.gnu.org/software/parallel/

GNU parallel allows you to run N processes in parallel. When you have single-threaded processes on a Linux HANA system you can get massive speed-ups.