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From Curt Allred <>
Subject RE: will compaction delete empty rows after all columns expired?
Date Thu, 31 May 2012 01:31:48 GMT
No, these were not wide rows.  They are rows that formerly had one or 2 columns. The columns
are deleted but the empty rows dont go away, even after gc_grace_secs.

So if I understand... the empty row will only be removed after gc_grace if enough compactions
have occurred so that all the column tombstones for the empty row are in a single SSTable
From: aaron morton []

Minor compaction will remove the tombstones if the row only exists in the sstable being compaction.

Are these very wide rows that are constantly written to ?

 p.s. cassandra 1.0 really does rock.

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