Displaying #cassandra-dev/2016-09-29.log:

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Thu Sep 29 13:24:41 2016  cassci:Project cassandra-3.X build #1: FAILURE in 21 sec: http://cassci.datastax.com/job/cassandra-3.X/1/
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Thu Sep 29 15:26:38 2016  cassci:Yippee, build fixed!
Thu Sep 29 15:26:39 2016  cassci:Project cassandra-3.X build #2: FIXED in 2 min 23 sec: http://cassci.datastax.com/job/cassandra-3.X/2/
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Thu Sep 29 16:06:32 2016  jeffj:new merge order is 2.2 -> 3.0 -> 3.x -> trunk ?
Thu Sep 29 16:10:48 2016  iamaleksey:yes
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Thu Sep 29 21:48:59 2016  zanson:jeffj: CASSANDRA-12681 really really should not have gone into 3.0, and really should not have gone into 3.x. its a breaking API change at a USER level, not even a code level.
Thu Sep 29 21:49:00 2016  CassBotJr:https://issues.apache.org/jira/browse/CASSANDRA-12681 (Resolved; Fixed; 3.0.10, 3.10): "Reject empty options and invalid DC names in replication configuration while creating or altering a keyspace."
Thu Sep 29 21:49:17 2016  adamholmberg:Joined the channel
Thu Sep 29 21:49:29 2016  jeffj:zanson: revert it, but we've been warning about it since 1.2
Thu Sep 29 21:50:02 2016  zanson:yes, but we shouldn't change it in a patch release.
Thu Sep 29 21:50:06 2016  kohlisankalp:What API does it break
Thu Sep 29 21:50:28 2016  zanson:anyone creating or replaying schema creations that have extra stuff in them
Thu Sep 29 21:50:43 2016  kohlisankalp:Are thery not already screwed
Thu Sep 29 21:51:01 2016  kohlisankalp:This will tell them that
Thu Sep 29 21:51:01 2016  zanson:why?
Thu Sep 29 21:51:10 2016  zanson:they aren't screwed if they did it on purpose
Thu Sep 29 21:51:19 2016  zanson:it also means you can't alter your schema before adding new nodes
Thu Sep 29 21:51:21 2016  zanson:for new DC's
Thu Sep 29 21:51:38 2016  kohlisankalp:that is not a good idea to do anyway
Thu Sep 29 21:51:50 2016  zanson:yes, but its something people do, and we shouldn't break it in a PATCH release
Thu Sep 29 21:52:02 2016  kohlisankalp:ok
Thu Sep 29 21:52:04 2016  jeffj:revert it and push it into 4.0.
Thu Sep 29 21:52:09 2016  zanson:I'm fine with the chANGE
Thu Sep 29 21:52:11 2016  zanson:BAH
Thu Sep 29 21:52:16 2016  zanson:bah
Thu Sep 29 21:52:17 2016  kohlisankalp::)
Thu Sep 29 21:52:20 2016  driftx:eh, 3.10 is ok
Thu Sep 29 21:52:23 2016  zanson:just not in a patch release
Thu Sep 29 21:53:12 2016  jeffj:zanson: if you have time to revert, go for it. otherwise i'll do it this evening
Thu Sep 29 21:53:30 2016  zanson:I'm not a committer :) so someone else will need to do it
Thu Sep 29 21:53:31 2016  driftx:he can't
Thu Sep 29 21:54:06 2016  jeffj:so i dont have to do it twice - are we ok with it in 3.10, just not 3.0.01?
Thu Sep 29 21:54:10 2016  jeffj:s/01/10/ ?
Thu Sep 29 21:54:19 2016  driftx:I'm ok with 3.10
Thu Sep 29 21:54:20 2016  zanson:I prefer 4.0, but I won't fight against 3.10
Thu Sep 29 21:54:31 2016  zanson:I still think this is a user level breaking API change
Thu Sep 29 21:54:46 2016  driftx:eh, let's go 4.0, then
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Thu Sep 29 21:56:30 2016  zanson:and I would add a note to NEWS.txt about the fact that you can't ALTER your schema for a new DC until there are nodes in it
Thu Sep 29 21:56:53 2016  zanson:because I have seen plenty of people do it that way, and done it that way myself before
Thu Sep 29 21:57:00 2016  jeffj:https://github.com/apache/cassandra/blob/trunk/NEWS.txt#L111-L113
Thu Sep 29 21:57:15 2016  driftx:I've told people to do that many times, actually
Thu Sep 29 21:57:22 2016  zanson:right, but I think you should explicitly call out the "not before youa dd nodes"
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Thu Sep 29 21:57:43 2016  zanson:because I don't think you really get that from the note that is there right now
Thu Sep 29 21:57:49 2016  jeffj:real world nobody should do that anyway, otherwise first node you add to that dc gets full load
Thu Sep 29 21:57:55 2016  zanson:no it doesn't
Thu Sep 29 21:58:00 2016  zanson:auto bootstrap should be false
Thu Sep 29 21:58:30 2016  jeffj:i'll revert it shortly
Thu Sep 29 21:58:36 2016  zanson:well, it starts getting all writes, but it won't get a full data load
Thu Sep 29 21:58:53 2016  zanson:and I've seen it in the wild, and done it myself before
Thu Sep 29 21:59:07 2016  zanson:so I think we should call it out explicitly
Thu Sep 29 21:59:11 2016  driftx:create, autobootstrap false, rebuild is fairly common
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Thu Sep 29 21:59:46 2016  driftx:actually, I don't think you can just add nodes first, at least some snitches are going to freak out, no?
Thu Sep 29 22:00:05 2016  zanson:shouldn't
Thu Sep 29 22:00:16 2016  driftx:on an unknown dc?
Thu Sep 29 22:00:25 2016  zanson:it just gets ignored
Thu Sep 29 22:00:42 2016  zanson:snitches don't care about replication strategies
Thu Sep 29 22:01:11 2016  driftx:hmm, yeah, gpfs doesn't care and gives you a default unknown dc
Thu Sep 29 22:04:23 2016  zanson:jeffj: also FYI you forgot the "patch by XXX; reviewed by XXX for CASSANDRA-XXX" for that commit
Thu Sep 29 22:04:33 2016  zanson:message
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Thu Sep 29 22:55:04 2016  ptnapoleon:Hey, probably someone needs to bundle a new python driver on trunk
Thu Sep 29 22:55:05 2016  ptnapoleon:for cqlsh
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