[jira] Commented: (CASSANDRA-671) Config defaults behavior is inconsistent

["Jonathan Ellis (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-671?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12796877#action_12796877 ] 

Jonathan Ellis commented on CASSANDRA-671:
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As a Python guy at heart, I am attracted to the "explicit is better than implicit" approach and requiring all options to be present in the config file.  Is there any downside to this?

> Config defaults behavior is inconsistent
> ----------------------------------------
>
>                 Key: CASSANDRA-671
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-671
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>         Environment: debian lenny amd64 OpenJDK 64-Bit Server VM (build 1.6.0_0-b11, mixed mode)
>            Reporter: Brandon Williams
>            Priority: Minor
>             Fix For: 0.9
>
>
> Some configuration options when not present in the config file, such as MemtableObjectCountInMillions, will provide a default.  Others, such as DiskAccessMode will bail with a cryptic error.  Behavior amongst all the options should be consistent, and warnings should be emitted if defaults are being used.

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