Displaying #cassandra-dev/2017-09-01.log:

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Fri Sep 1 07:11:51 2017  krut:those jenkins nodes should all be working again with bigger disks. complain here if you see any more issues
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Fri Sep 1 12:03:38 2017  jasobrown:krut: woo-hoo! thanks
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Fri Sep 1 12:42:00 2017  iksaif: about https://github.com/apache/cassandra/pull/147/files#diff-be1bfb81c770dcfb7042335b699c4cc3R89 (CASSANDRA-10496). To me it looks like it would makes more sense to
Fri Sep 1 12:42:01 2017  CassBotJr:https://issues.apache.org/jira/browse/CASSANDRA-10496 (Open; Unresolved; 4.x): "Make DTCS/TWCS split partitions based on time during compaction"
Fri Sep 1 12:42:04 2017  iksaif: take into account the deletion time instead of the timestamp.
Fri Sep 1 12:42:26 2017  iksaif:mck_sw said "the value i see in the ticket is a table with a mixed TTL and TWCS is going to drop expired sstables sooner if time windows are split."
Fri Sep 1 12:42:33 2017  iksaif:and exactly, that was the idea
Fri Sep 1 12:42:57 2017  iksaif:it's fundamental change of behavior though, that would even trigger a recompaction on existing installs :/
Fri Sep 1 12:43:25 2017  iksaif:if we feel that it's a good idea, I wonder if the choice of timestamp vs. ttl needs to be an option ..
Fri Sep 1 12:49:33 2017  mck_sw:i was thinking that the TWCS windows would still be timestamp based, but the splits within would be deletion time based. maybe i mis read/understood?
Fri Sep 1 12:55:23 2017  mck_sw:iksaif: it's late here for me. i'm keen to take a proper look over the weekend! but for now i must fade… :-(
Fri Sep 1 13:00:58 2017  iksaif:ok !
Fri Sep 1 13:01:34 2017  iksaif:as far as I know, the splits/buckets are based on the maximum timestamp of the partition (which is also problematic, because not always available, while the minimum timestamp is)
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