Thank you for your response. What subproperties do you mean specifically?
Currently, there are the following settings to ageressive purge. AND COMPACTION = { 'class' : 'TimeWindowCompactionStrategy', 'compaction_window_unit' : 'HOURS', 'compaction_window_size' : 12, 'unchecked_tombstone_compaction': true, 'tombstone_threshold' : 0.05, 'tombstone_compaction_interval' : 21600 } AND gc_grace_seconds = 600 Apache Cassandra Version 3.11.4 > 2020. 10. 29. 12:26, Jeff Jirsa <jji...@gmail.com> 작성: > > Works but requires you to enable tombstone compaction subproperties if you > need to purge the 2w ttl data before the highest ttl time you chose > >> On Oct 28, 2020, at 5:58 PM, Eunsu Kim <eunsu.bil...@gmail.com> wrote: >> >> Hello, >> >> I have a table with a default TTL(2w). I'm using TWCS(window size : 12h) on >> the recommendation of experts. This table is quite big, high WPS. >> >> I would like to insert data different TTL from the default in this table >> according to the type of data. >> About four different TTLs (4w, 6w, 8w, 10w) >> >> ex.) >> INSERT INTO my_table (…..) VALUES (….) USING TTL 4w >> >> >> Could this cause performance problems or unexpected problems in the >> compaction? >> >> Please give me advice, >> >> Thank you. >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org >> For additional commands, e-mail: user-h...@cassandra.apache.org >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org > For additional commands, e-mail: user-h...@cassandra.apache.org >