Cassandra_ColumnFamily_Parameters

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Doradus Configuration and Operation : Doradus Configuration Files : Configuration Parameters in doradus.yaml : Cassandra ColumnFamily Parameters

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Cassandra ColumnFamily Parameters

The cf_defaults parameter is used when Doradus creates a new ColumnFamily. All values recognized by Cassandra are allowed and are passed “as is”. Parameters must begin with a dash (-), and sub-parameters should be further indented. Empty values should be specified with a pair of quotes. Example:

cf_defaults:

- compression_options:

- sstable_compression: "" # use empty string for "none"

- gc_grace_seconds: 3600

After a ColumnFamily is created, Doradus does not modify its parameters to match values in doradus.yaml. It is safe to use Cassandra tools such as cassandra-cli to modify ColumnFamily parameters when needed.

See Cassandra documentation for information about ColumnFamily parameters.