[jira] [Updated] (IMPALA-7053) Reorganise query options into groups

["Tim Armstrong (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-7053?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tim Armstrong updated IMPALA-7053:
----------------------------------
    Target Version: Product Backlog  (was: Impala 3.1.0)

> Reorganise query options into groups
> ------------------------------------
>
>                 Key: IMPALA-7053
>                 URL: https://issues.apache.org/jira/browse/IMPALA-7053
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Backend
>            Reporter: Tim Armstrong
>            Assignee: Bikramjeet Vig
>            Priority: Major
>
> We have quite a lot of query options now and we're adding more for things like resource limits (e.g. IMPALA-6035). It's getting harder for users to understand the organisation and find relevant query options. We should consider grouping similar query options.
> E.g. for this set of resource limits, we could reorganise in various ways:
> * mem_limit -> resources.memory.per_node_limit
> * buffer_pool_limit -> resources.memory.buffer_pool.per_node_limit
> * thread_reservation_limit  -> resources.threads.per_node_limit
> * thread_reservation_aggregate_limit -> resources.threads.aggregate_limit
> * exec_time_limit_s -> resources.wallclock.limit_s
> We could do the conversion incrementally. It would probably make sense to agree on a top-level organisation up-front.
> * planner - anything that controls planner decisions like join ordering, etc
> * scheduler - anything that controls scheduler decisions (admission control could maybe be included here too)
> * resources - resource management functionality (limits, etc)
> * session - anything related to session management like timeouts
> * exec - anything that changes query execution behaviour (e.g. codegen, batch sizes, runtime filters, etc)
> * Probably a group for anything that changes the semantic behaviour of a query (e.g. decimal_v2, appx_count_distinct, strict_mode, abort_on_error).
> * A group that controls read and write behaviour of file formats like compression, etc



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