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From "Daniel Barclay (Drill) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-1816) Scan Error with JSON on large no of records with Complex Types
Date Thu, 30 Apr 2015 18:57:07 GMT

    [ https://issues.apache.org/jira/browse/DRILL-1816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14522053#comment-14522053
] 

Daniel Barclay (Drill) commented on DRILL-1816:
-----------------------------------------------

Investigation note:

Hmm.  Something about this is intermittent or state-dependent:

A first try at reproducing this consistently returned wrong numbers of rows (around 15,000
rather than 100,000).

However, subsequent tries returned the correct number of rows.

> Scan Error with JSON on large no of records with Complex Types
> --------------------------------------------------------------
>
>                 Key: DRILL-1816
>                 URL: https://issues.apache.org/jira/browse/DRILL-1816
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Execution - Data Types, Storage - JSON
>            Reporter: Rahul Challapalli
>            Assignee: Daniel Barclay (Drill)
>             Fix For: 1.0.0
>
>         Attachments: complex.log
>
>
> git.commit.id.abbrev=4a4f54a
> Memory Settings
> {code}
> DRILL_MAX_DIRECT_MEMORY="32G"
> DRILL_MAX_HEAP="4G"
> {code}
> Dataset :
> {code}
> {
>   "data" : {
>     "col1" : {
>       "one" : [1,2,3,4],
>       "two" : [{"a":"b"},{"c":"d"}]
>     }
>   }
> }
> {code}
> The below query works fine for the above record. However if we copy the same record 100,000
times, it fails with IOOB exception
> {code}
> select data from `json_kvgenflatten/kvgen-complex-large.json`;
> {code}
> Attached the logs. Let me know if you need anything more.



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