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set gc_grace_seconds to the compaction_window_size #700
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The default gc_grace_seconds is 10days. If the default ttl is only 1day old sstables wont be purged from cassandra until they are 11days old. Setting the gc_grace_seconds to the compaction window size ensures that the data that is no longer being queried gets cleaned up.
woodsaj
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Dieterbe and
replay
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Dieterbe
Dieterbe
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Jul 25, 2017
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LGTM. http://docs.datastax.com/en/cql/3.3/cql/cql_reference/cqlCreateTable.html#tabProp mentions a few caveats but they don't seem to be a problem to us.
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The default gc_grace_seconds is 10days. If the default ttl is only 1day
old sstables wont be purged from cassandra until they are 11days old.
Setting the gc_grace_seconds to the compaction window size ensures that
the data that is no longer being queried gets cleaned up.