Hi Todd, Say, for example, I want HBase to be scanned and return all the rows that matches my input value (query) on a particular column. Assume that the column stores "string" and the input query is also a string.
I would want to perform this search in a mapreduce program, where the map functions will parallely query the same hbase table. Thanks, Ilay On Sun, Jul 11, 2010 at 10:20 AM, Todd Lipcon <[email protected]> wrote: > Hi Ilay, > > HBase doesn't have built-in "search " functionality. Could you explain a > little more what you're trying to achieve? It may be that our "Filter" > system can do what you're looking for. Also, what latency do you expect for > these queries? > > Probably the best bet is to change the MapReduce job to also create an > index > table at the same time as it's importing the data. Then a very efficient > get/scan can find the data for you. > > Thanks > -Todd > > P.S. please use the user@ list for this, and don't cross-post to d...@. dev > should be for discussion of HBase development itself, not development on > top > of hbase. > > On Sat, Jul 10, 2010 at 9:32 PM, ilay raja <[email protected]> wrote: > > > HI.. > > > > Am experimenting with HBase for a search application. Have done bulk > import > > of input data into hbase table using mapreduce.. > > > > Input format: <key> <value> > > I used SampleUploader.java for populating the table. (from examples) > > key is stored as row-key and value as column. > > > > Would like to know how to perform search on this table for a specific > > column > > value... > > I do not find any mapreduce examples that does search on the table. > Please > > let me know any pointers or how do we do this?? > > > > Should I use HBase client APIs to perform search on the table... from > > DemoClient.java > > > > Regards, > > IlayaRaja > > > > > > -- > > ----------------------------- > > Product Engineer, > > Rediff, Mumbai. > > > > +91 97691 67921 > > ------------------------------ > > > > > > -- > Todd Lipcon > Software Engineer, Cloudera > -- ----------------------------- Product Engineer, Rediff, Mumbai. +91 97691 67921 ------------------------------
