[
https://issues.apache.org/jira/browse/DRILL-5312?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Paul Rogers resolved DRILL-5312.
--------------------------------
Resolution: Fixed
> "Record batch sizer" does not include overhead for variable-sized vectors
> -------------------------------------------------------------------------
>
> Key: DRILL-5312
> URL: https://issues.apache.org/jira/browse/DRILL-5312
> Project: Apache Drill
> Issue Type: Sub-task
> Affects Versions: 1.10.0
> Reporter: Paul Rogers
> Assignee: Paul Rogers
> Fix For: 1.11.0
>
>
> The new "record batch sizer" computes the actual data size of a record given
> a batch of vectors. For most purposes, the record width must include the
> overhead of the offset vectors for variable-sized vectors. The initial code
> drop included only the character data, but not the offset vector size when
> computing row width.
> Since the "managed" external sort relies on the computed row size to
> determine memory usage, the underestimation of row count width can cause an
> OOM under certain low-memory conditions.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
