Hi, Searching for Cassandra with MapReduce, I am finding that the search results are really dated -- from version 0.7 & 2010/2011.
Is there a good blog/article that describes how using MapReduce on Cassandra table ? >From my naive understanding, Cassandra is all about partitioning. Querying is based on partitionkey + clustered column(s). Inputs to MapReduce is a sequence of Key,values. For Storm it is a stream of tuples. If a database table is input source for MapReduce or Storm, for me , this is in the simple case, is translating to a full table scan of the input table, which can timeout and is generally not a recommended access pattern in Cassandra. My initial reaction is that if I need to process data with MapReduce or Storm, reading it from Cassandra might not be the optimal way. Storing the output to Cassandra however does make sense. If anyone had links to blogs or personal experience in this area, I would appreciate if you can share it. regards
