This seems like a problem that can be solved any number of ways without a database. Since storm bolts can be written in just about any language, pick your favorite and work it that way.
Your description of your data is a bit confusing though...perhaps if you post a sample of the data, it might make it easier for someone to give you a suggestion. Also, the problem you are trying to solve is not really a storm issue, but a programming logic issue, you might also have better luck asking that part of the question on stack overflow or a similar site...just a thought. -- Aaron > On Mar 9, 2016, at 4:31 PM, Maria Musterfrau <[email protected]> wrote: > > Hello > > I have a question regarding Storm. I would like to predict the next hour in > realtime. But it is not really a prediction as I already know the values. I > receive a message which tells me that a program has been started. Every > program has a list of values (every minute a different value for different > time frames depending on the program), stored in an external database. I > would like to add up all the values of one minute over all started programs > but I do not know how to solve the issue with the timestamp. Because I only > have a timestamp for the start message, but not for the individual values. So > how do I know which values belong to which minute. Here is an example to show > it: > > p1 p2 p3 p4 sum/minute > minute 1 3 7 = 10 > minute 2 4 5 6 = 15 > minute 3 5 7 6 8 = 26 > minute 4 7 8 4 1 = 20 > minute 5 8 5 5 = 18 > ... > > Is this possible within a Storm bolt? Or would it only be possible with a > NoSQL database or any other tools? > Does anyone have any ideas? > > Thank you in advance. > > Regards, > Daniela
