spark-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Wenchen Fan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-20782) Dataset's isCached operator
Date Thu, 18 May 2017 14:52:04 GMT

    [ https://issues.apache.org/jira/browse/SPARK-20782?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16015872#comment-16015872
] 

Wenchen Fan commented on SPARK-20782:
-------------------------------------

one alternative is to create a temp view and cache the view, then we can use `spark.catalog.isCache(viewName)`

> Dataset's isCached operator
> ---------------------------
>
>                 Key: SPARK-20782
>                 URL: https://issues.apache.org/jira/browse/SPARK-20782
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.3.0
>            Reporter: Jacek Laskowski
>            Priority: Trivial
>
> It'd be very convenient to have {{isCached}} operator that would say whether a query
is cached in-memory or not.
> It'd be as simple as the following snippet:
> {code}
> // val q2: DataFrame
> spark.sharedState.cacheManager.lookupCachedData(q2.queryExecution.logical).isDefined
> {code}



--
This message was sent by Atlassian JIRA
(v6.3.15#6346)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org


Mime
View raw message