Re: DTCS SSTable count issue

2016-07-11 Thread Alain RODRIGUEZ
gt; so, don’t try to get clever and set it to something very close to 99%, the > estimated tombstone ratio isn’t that accurate) > > > > - Jeff > > > > > > *From: *Alain RODRIGUEZ <arodr...@gmail.com> > *Reply-To: *"user@cassandra.apache.org" <user@cas

Re: DTCS SSTable count issue

2016-07-11 Thread Jason J. W. Williams
he > estimated tombstone ratio isn’t that accurate) > > > > - Jeff > > > > > > *From: *Alain RODRIGUEZ <arodr...@gmail.com> > *Reply-To: *"user@cassandra.apache.org" <user@cassandra.apache.org> > *Date: *Monday, July 11, 2016 at 1:05 PM > *To:

Re: DTCS SSTable count issue

2016-07-11 Thread Riccardo Ferrari
@Alain, @Jeff Thank you very much for your time. I really appreciate it! Yes I found many posts/hints about TWCS, definitely look very promising. I understand correctly that I can swap compaction strategy without any major concern, right? About the read repair, Am I correct in thinking that the

Re: DTCS SSTable count issue

2016-07-11 Thread Jeff Jirsa
o isn’t that accurate) - Jeff From: Alain RODRIGUEZ <arodr...@gmail.com> Reply-To: "user@cassandra.apache.org" <user@cassandra.apache.org> Date: Monday, July 11, 2016 at 1:05 PM To: "user@cassandra.apache.org" <user@cassandra.apache.org> Subject: Re

Re: DTCS SSTable count issue

2016-07-11 Thread Alain RODRIGUEZ
@Jeff Rather than being an alternative, isn't your compaction strategy going to deprecate (and finally replace) DTCS ? That was my understanding from the ticket CASSANDRA-9666. @Riccardo If you are interested in TWCS from Jeff, I believe it has been introduced in 3.0.8 actually, not 3.0.7

Re: DTCS SSTable count issue

2016-07-07 Thread Jeff Jirsa
48 sstables isn’t unreasonable in a DTCS table. It will continue to grow over time, but ideally data will expire as it nears your 90 day TTL and those tables should start dropping away as they age. 3.0.7 introduces an alternative to DTCS you may find easier to use called TWCS. It will