Re: [Discussion]support user specified segments in major compation

Posted by Jin Zhou on Oct 30, 2017; 12:17pm
URL: http://apache-carbondata-dev-mailing-list-archive.168.s1.nabble.com/Discussion-support-user-specified-segments-in-major-compation-tp24540p25245.html

@Liang Chen, thank you for your reply.


After seriously thinking about your suggestion, I also think the two
problems should be considered separately.
For problem 2, User specified compaction segments is not a good solution
indeed. I am glad to do some work for this.

For problem 1, I agree with you that segment is not proper to be exposed to
most users in standard APIs because segment is a internal concept to some
extent.
But as we have segment management commands like "show segments for table"
and "alter table compact", it seems that we can not call it a completely
internal concept.
So I think maybe we can support user specified segments only in management
functions like compaction and take it as a hidden advanced usage which is
not recommended in general cases.

Regards
Jin Zhou





--
Sent from: http://apache-carbondata-dev-mailing-list-archive.1130556.n5.nabble.com/