Today I configured incremental backups in a test node which already has some data on it, and I found that backups are not created for STTables created by a compact:
mddione@life:~/src/works/orange/Cassandra$ sudo find /var/lib/cassandra/data/one_cf /var/lib/cassandra/data/one_cf /var/lib/cassandra/data/one_cf/cf_1 /var/lib/cassandra/data/one_cf/cf_1/one_cf-cf_1-hd-4-Statistics.db /var/lib/cassandra/data/one_cf/cf_1/one_cf-cf_1-hd-4-Data.db /var/lib/cassandra/data/one_cf/cf_1/one_cf-cf_1-hd-5-Index.db /var/lib/cassandra/data/one_cf/cf_1/one_cf-cf_1-hd-4-Index.db /var/lib/cassandra/data/one_cf/cf_1/one_cf-cf_1-hd-5-Filter.db /var/lib/cassandra/data/one_cf/cf_1/one_cf-cf_1-hd-5-Data.db /var/lib/cassandra/data/one_cf/cf_1/one_cf-cf_1-hd-4-CompressionInfo.db /var/lib/cassandra/data/one_cf/cf_1/one_cf-cf_1-hd-5-CompressionInfo.db /var/lib/cassandra/data/one_cf/cf_1/backups /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-1-Index.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-3-Data.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-2-CompressionInfo.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-3-Filter.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-5-Index.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-1-Data.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-2-Index.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-2-Filter.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-5-Filter.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-1-Statistics.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-2-Data.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-3-Statistics.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-5-Data.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-5-CompressionInfo.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-2-Statistics.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-1-CompressionInfo.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-5-Statistics.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-1-Filter.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-3-CompressionInfo.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-3-Index.db /var/lib/cassandra/data/one_cf/cf_1/one_cf-cf_1-hd-4-Filter.db /var/lib/cassandra/data/one_cf/cf_1/one_cf-cf_1-hd-5-Statistics.db mddione@life:~/src/works/orange/Cassandra$ nodetool compact mddione@life:~/src/works/orange/Cassandra$ sudo find /var/lib/cassandra/data/one_cf /var/lib/cassandra/data/one_cf /var/lib/cassandra/data/one_cf/cf_1 /var/lib/cassandra/data/one_cf/cf_1/one_cf-cf_1-hd-6-Data.db /var/lib/cassandra/data/one_cf/cf_1/one_cf-cf_1-hd-6-Statistics.db /var/lib/cassandra/data/one_cf/cf_1/one_cf-cf_1-hd-6-Index.db /var/lib/cassandra/data/one_cf/cf_1/one_cf-cf_1-hd-6-Filter.db /var/lib/cassandra/data/one_cf/cf_1/one_cf-cf_1-hd-6-CompressionInfo.db /var/lib/cassandra/data/one_cf/cf_1/backups /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-1-Index.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-3-Data.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-2-CompressionInfo.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-3-Filter.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-5-Index.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-1-Data.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-2-Index.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-2-Filter.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-5-Filter.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-1-Statistics.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-2-Data.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-3-Statistics.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-5-Data.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-5-CompressionInfo.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-2-Statistics.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-1-CompressionInfo.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-5-Statistics.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-1-Filter.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-3-CompressionInfo.db /var/lib/cassandra/data/one_cf/cf_1/backups/one_cf-cf_1-hd-3-Index.db as you can see, neither SSTables 4 or 6 have backups; both were created by compactions. -- Marcos Dione SysAdmin Astek Sud-Est pour FT/TGPF/OPF/PORTAIL/DOP/HEBEX @ Marco Polo 04 97 12 62 45 - mdione....@orange.com _________________________________________________________________________________________________________________________ Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc pas etre diffuses, exploites ou copies sans autorisation. 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