I keep reading that Hadoop/Brisk is not suitable for online querying, only for offline/batch processing. What exactly are the reasons it is unsuitable? My use case is a fairly high query load, and each query ideally would return within about 20 seconds. The queries will use indexes to narrow down the result set first, but they also need to support text search on one of the fields. I was thinking of simulating the SQL LIKE statement, by running each query as a MapReduce job so that the text search gets distributed between nodes.
I know the recommended approach is to keep a seperate full-text index, but that could be quite space-intensive, and also means you can only search on complete words. Any thoughts on this approach? Thanks, Ben
