[jira] [Commented] (CASSANDRA-15234) Standardise config and JVM parameters

["Caleb Rackliffe (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-15234?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17209288#comment-17209288 ] 

Caleb Rackliffe commented on CASSANDRA-15234:
---------------------------------------------

bq. In the spirit of expediting 4.0RC release I propose we postpone this to 4.X, and resume this with high priority earlier in the next release cycle.

I'm more or less in agreement that we push this to 4.x along with CASSANDRA-16038, unless some unrelated need for the latter arises.

> Standardise config and JVM parameters
> -------------------------------------
>
>                 Key: CASSANDRA-15234
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-15234
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Local/Config
>            Reporter: Benedict Elliott Smith
>            Assignee: Ekaterina Dimitrova
>            Priority: Normal
>             Fix For: 4.0-alpha, 4.0-triage
>
>         Attachments: CASSANDRA-15234-3-DTests-JAVA8.txt
>
>
> We have a bunch of inconsistent names and config patterns in the codebase, both from the yams and JVM properties.  It would be nice to standardise the naming (such as otc_ vs internode_) as well as the provision of values with units - while maintaining perpetual backwards compatibility with the old parameter names, of course.
> For temporal units, I would propose parsing strings with suffixes of:
> {{code}}
> u|micros(econds?)?
> ms|millis(econds?)?
> s(econds?)?
> m(inutes?)?
> h(ours?)?
> d(ays?)?
> mo(nths?)?
> {{code}}
> For rate units, I would propose parsing any of the standard {{B/s, KiB/s, MiB/s, GiB/s, TiB/s}}.
> Perhaps for avoiding ambiguity we could not accept bauds {{bs, Mbps}} or powers of 1000 such as {{KB/s}}, given these are regularly used for either their old or new definition e.g. {{KiB/s}}, or we could support them and simply log the value in bytes/s.



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