[jira] [Created] (CASSANDRA-9810) Lift some counters limitations in C* 3.X

["Aleksey Yeschenko (JIRA)" <ji...@apache.org>]

Aleksey Yeschenko created CASSANDRA-9810:
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             Summary: Lift some counters limitations in C* 3.X
                 Key: CASSANDRA-9810
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9810
             Project: Cassandra
          Issue Type: Improvement
            Reporter: Aleksey Yeschenko
            Assignee: Aleksey Yeschenko
             Fix For: 3.x


A ticket to aggregate issues for removal of some of the counters limitations we currently have:

1. Counters are not reusable after deletion. It's true that deletion doesn't commute, and an increment coming soon after a deletion would lead to undefined behavior, but the current behavior is the result of bug in 1.1. We should revert CASSANDRA-7346

2. Once that is done, we can start allowing to mix counters and non-counters in the same tables. For read requests it means data locality, being able to satisfy more requests with a single query. We would still be forbidding updating counter columns and regular columns in a single {{UPDATE}}, however, and would not allow counter updates in {{INSERT}}

See CASSANDRA-8878 for some discussion of the subject. In particular, [this|https://issues.apache.org/jira/browse/CASSANDRA-8878?focusedCommentId=14346748&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14346748] and [this|https://issues.apache.org/jira/browse/CASSANDRA-8878?focusedCommentId=14351091&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14351091] comments.

This seems to be a pre-requisite for CASSANDRA-9778.



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