Displaying #cassandra-dev/2017-02-03.log:

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Fri Feb 3 18:57:02 2017  aertoria:Hey folks, a question here. In C* I just learn that it also supports column family. Does one SSTable only stores one Column family, like Hbase did?
Fri Feb 3 18:59:03 2017  driftx:no, multiple sstables comprise a CF
Fri Feb 3 18:59:22 2017  driftx:but each sstable is part of only one CF, as well
Fri Feb 3 19:01:25 2017  aertoria:true. since SSTable is immutable, over time a CF will have lots fragments that's certainly understandable. My concern is actually the other way around: it's not possible for one SSTable contains more than one CF, correct?
Fri Feb 3 19:03:44 2017  driftx:correct
Fri Feb 3 19:03:56 2017  aertoria:Awesome Thank you drftx!
Fri Feb 3 19:04:01 2017  driftx:couldn't tell which way you were asking that the first time, so I answered both ways, heh
Fri Feb 3 19:04:25 2017  aertoria:yeah....I just saw you actually did answered. Thanks!
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Fri Feb 3 19:06:08 2017  aertoria:Another question. Besides bloom filter, does each SSTable also stores a low watermark and a high watermark of partition key to help eliminate the reading traffic hit?
Fri Feb 3 19:06:20 2017  aweisberg:aertoria: They do
Fri Feb 3 19:06:48 2017  aertoria:they use those water mark to filter before or after Bloom filters?
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Fri Feb 3 19:09:58 2017  thobbs:before
Fri Feb 3 19:11:18 2017  aertoria:Thanks /thobbs !
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Fri Feb 3 20:15:06 2017  tjake:So do/don't merge to 3.11 branch?
Fri Feb 3 20:15:12 2017  tjake:exlt: ^
Fri Feb 3 20:16:50 2017  exlt:the cassandra-3.11 branch will be the release branch for 3.11.X versions, post-tick-tock, so yes :)
Fri Feb 3 20:17:00 2017  tjake:so merge to all usual suspects
Fri Feb 3 20:17:03 2017  tjake:k thx
Fri Feb 3 20:17:30 2017  exlt:the cassandra-3.X branch can be ignored - that's the one that is no longer going to be used
Fri Feb 3 20:17:48 2017  tjake:oh ok
Fri Feb 3 20:18:39 2017  exlt: /topic has: Current merge order: 2.1 -> 2.2 -> 3.0 -> 3.11 -> trunk
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Fri Feb 3 20:23:06 2017  exlt:guess I hadn't really thought about the next version number out of that branch - seems like we might just make it 3.11.0 and go back to the regularly scheduled program
Fri Feb 3 20:24:18 2017  exlt:3.10 is going to go out this afternoon, so I'll need to bump it to something
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Fri Feb 3 21:02:11 2017  iamaleksey:bump to 3.11.0 indeed
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