[jira] [Created] (CASSANDRA-15882) sstablemetadata should show tombstone timestamp not just the local drop time

["Thanh (Jira)" <ji...@apache.org>]

Thanh created CASSANDRA-15882:
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             Summary: sstablemetadata should show tombstone timestamp not just the local drop time
                 Key: CASSANDRA-15882
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-15882
             Project: Cassandra
          Issue Type: Improvement
            Reporter: Thanh


issue/request:

sstablemetadata should show tombstone timestamp not just the local drop time

 

I'm  not sure what all versions this exists in but the sstablemetadata tombstone "drop time" only just shows the local delete time of the tombstones.  What's more important (what the tombstone expiration time depends on) is the tombstone writetime (tombstone timestamp).  It's possible to, and a surprising number of users have done this, write a tombstone with a timetamp in the future (by doing "DELETE...USING TIMESTAMP <future_timestamp>").  When this happens, the tombstone hangs around in sstables for a lot longer than users expect because
{code:java}
tombstone_expiration_time = gc_grace_seconds + tombstone_timestamp{code}
NOT
{code:java}
 tombstone_expiration_time = gc_grace_seconds + tombstone_local_delete_time{code}



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