[jira] [Commented] (LENS-404) Optimize getAll lookups and JoinChain lookups in CubeMetastoreClient

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

    [ https://issues.apache.org/jira/browse/LENS-404?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14371229#comment-14371229 ] 

Hudson commented on LENS-404:
-----------------------------

SUCCESS: Integrated in Lens-Commit #653 (See [https://builds.apache.org/job/Lens-Commit/653/])
LENS-404 : Optimize getAll lookups and JoinChain lookups in CubeMetastoreClient (Amareshwari via jdhok) (jaideep.dhok: rev 954ee08c765e4648d3d81604bf307bb3117e8756)
* lens-cli/src/main/java/org/apache/lens/cli/commands/LensDimensionTableCommands.java
* lens-cube/src/main/java/org/apache/lens/cube/metadata/CubeFactTable.java
* lens-cube/src/main/java/org/apache/lens/cube/metadata/CubeDimensionTable.java
* lens-cube/src/main/java/org/apache/lens/cube/metadata/CubeMetastoreClient.java
* lens-server/src/main/java/org/apache/lens/server/metastore/CubeMetastoreServiceImpl.java


> Optimize getAll lookups and JoinChain lookups in CubeMetastoreClient
> --------------------------------------------------------------------
>
>                 Key: LENS-404
>                 URL: https://issues.apache.org/jira/browse/LENS-404
>             Project: Apache Lens
>          Issue Type: Improvement
>          Components: cube
>            Reporter: Amareshwari Sriramadasu
>            Assignee: Amareshwari Sriramadasu
>             Fix For: 2.1
>
>         Attachments: LENS-404.3.patch
>
>
> JoinChains are not tables. 
> CubeQueryContext.extractMetaTables queries metastore for all table aliases accessed in the query. For actual tables, the tables will be cached in cube metastore client. For tables that are not there, it will still do a getTable call.
> We should optimize joinchain lookup on the client, not to lookup metastore



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