[jira] [Commented] (JAMES-3224) Make Cassandra Consistency levels configurable

["Matthieu Baechler (Jira)" <se...@james.apache.org>]

    [ https://issues.apache.org/jira/browse/JAMES-3224?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17136785#comment-17136785 ] 

Matthieu Baechler commented on JAMES-3224:
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I feel it's quite dangerous to do that: the application knows better than the user which consistency level to use for things.
What we can do is allow to switch QUORUM-style queries to EACH_QUORUM or LOCAL_QUORUM but it would not make sense to allow for ONE for example
BTW, we also have, in the codebase, some ONE on specific uses: we can't have a single level of configuration as it uses ONE for good reasons.

> Make Cassandra Consistency levels configurable
> ----------------------------------------------
>
>                 Key: JAMES-3224
>                 URL: https://issues.apache.org/jira/browse/JAMES-3224
>             Project: James Server
>          Issue Type: Improvement
>          Components: cassandra
>            Reporter: Gautier DI FOLCO
>            Priority: Minor
>
> Consistency level in Cassandra queries is set explicitly to QUORUM in some cases, and to SERIAL in some other cases (lightweight transactions).
> The goal is to make these queries globally configurable.
> In the {{cassandra.properties}} file, I propose we add two configuration properties:
>  * {{cassandra.consistency_level.regular}} (default to QUORUM to avoid breaking changes)
>  * {{cassandra.consistency_level.lightweight_transaction}} (default to SERIAL)



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