SOME lightweight processing is possible with UDFs / UDAs: http://www.planetcassandra.org/blog/user-defined-functions-in-cassandra-3-0 /
They're not directly comparable to Hbase coprocessors, but they allow some computation on the server. On 12/10/15, 11:02 PM, "hongbin ma" <mahong...@apache.org> wrote: >hi community > >I'm new to Cassandra and i'm wondering if there is a counterpart to >HBase's >coprocessors in Cassandra. (basically i want to move some of the >computation to the server where data resides) > >I did a little googling and found >https://issues.apache.org/jira/browse/CASSANDRA-1311 similar to what I'm >looking for. >However it seems not exactly the same thing. Then I found the article >http://www.javaworld.com/article/2140805/big-data/big-data-showdown-cassan >dra-vs-hbase.html >clearly claims that "Cassandra currently has no counterpart to HBase's >coprocessors." > >Can I get some clear answer here? If it Cassandra currently has no >counterpart to HBase's coprocessors, is there any plan to implement a >framework that supports "move-computation-to-data"? I believe HBase was >not >born with coprocessors:) > >thanks ahead! > >-- >Regards, > >*Bin Mahone | 马洪宾* >Apache Kylin: http://kylin.io >Github: https://github.com/binmahone
