Hi, Does anyone have any experience with running a MapReduce directly against a CF's SSTable files?
I have a use case where this seems to be an option. I want to export all data from a CF to a flat file format for statistical analysis. Some factors that make it (more) doable in my case: -The Cassandra instance is not 'on-line' (no writes- no reads) -The .db files were exported from another instance. I got them all in one place now The SSTable files are in the -f- format from 0.8.10. Looking at this : http://wiki.apache.org/cassandra/ArchitectureSSTable it should be possible to write a Hadoop RecordReader for Cassandra rowkeys. But maybe I am not fully aware of what I am up to. -- *Jasper** *
