Open Source alternative to kdb+

[acatalano]

Is anyone familiar with an open source alternative to the kdb+ time series database?

[alain]

I played with K once around 2000. At that time, there was no "free-lunch". I remember the company that produced KDB used to offer a limited version for free that you could play with but I haven't seen anything like it in the open source world.

The only thing I remember about K is that it was superfast but cryptic (APL based I think).

[acatalano]

Hi Alain-

Yes I played around with the limited trial version as well. It is very fast but also very expensive.

Thanks for the reply back.

-regards

[Wallstyouth]

Is anyone familiar with an open source alternative to the kdb+ time series database?

Opensource DB on steriods MonetDB - http://monetdb.cwi.nl/ not very good for time series data as k but its much better than most of the opensource stuff available today

Checkout HDF5 its opensource but API only - http://hdf.ncsa.uiuc.edu/whatishdf5.html it works very well with Esper Esper - (http://esper.codehaus.org/)

Cheaper than kdb but comes very close in speed Time Series Database - Xenomorph Database (XDB) (http://www.xenomorph.com/products/systems/xdb/)

[rholowczak]

There seem to be many new entrants into this space.
Vhayu, StreamBase and others. I think StreamBase offers a free demo version.
You might also look at Times Ten (acquired by Oracle - also has a trial version):
http://www.oracle.com/technology/products/timesten/index.html


Cheers,

Prof .H.