drill-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Chris Westin (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-3874) flattening large JSON objects consumes too much direct memory
Date Wed, 30 Sep 2015 22:37:04 GMT
Chris Westin created DRILL-3874:
-----------------------------------

             Summary: flattening large JSON objects consumes too much direct memory
                 Key: DRILL-3874
                 URL: https://issues.apache.org/jira/browse/DRILL-3874
             Project: Apache Drill
          Issue Type: Bug
          Components: Execution - Data Types
    Affects Versions: 1.1.0
            Reporter: Chris Westin
            Assignee: Chris Westin


A JSON record has a field whose value is an array with 20,000 elements; the record's size
is 4MB. A select is used to flatten this. The query profile reports that the peak memory utilization
was 8GB, most of it used by the flatten. 



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message