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Bulk Exporting from Cassandra - Carlo Cabanilla

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This document discusses various methods for bulk exporting data from Cassandra databases including taking snapshots of sstables and converting them to JSON or CSV formats. It recommends using tools like sstable2json, sstable2csv, and ionice to reduce load on live clusters during export. The document also provides suggestions for storing the exported data such as on EBS volumes or S3 using tools like S3cmd, and methods for deduplicating the data including using Hadoop. File formats and naming conventions are suggested for storage as well.

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Bulk exporting data from Cassandra Carlo Cabanilla @clofresh
Why export?
snapshot
sstable2json
Killing IO on live cluster
sstable2json sstable2csv, with filters
ionice -c 3
Need a place to put it
EBS to the rescue
gzipped
S3cmd
Need to dedupe
Hadoop
numpy pickles
Haderp Mortar Data
numpy pickles msgpack lz4
gzipped lzo'd
Haderp file naming! 2010-07-27~org-1018~m-48778.csv-1,316.gz
S3 copy
Bulk exporting data from Cassandra Carlo Cabanilla @clofresh

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Bulk Exporting from Cassandra - Carlo Cabanilla