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https://issues.apache.org/jira/browse/DRILL-7578?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17044539#comment-17044539
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ASF GitHub Bot commented on DRILL-7578:
---------------------------------------
cgivre commented on pull request #1978: DRILL-7578: HDF5 Metadata Queries Fail
with Large Files
URL: https://github.com/apache/drill/pull/1978#discussion_r383929781
##########
File path:
contrib/format-hdf5/src/main/java/org/apache/drill/exec/store/hdf5/HDF5BatchReader.java
##########
@@ -458,7 +494,7 @@ private void projectMetadataRow(RowSetLoader rowWriter) {
/**
* This function writes one row of data in a metadata query. The number of
dimensions here is n+1. So if the actual dataset is a 1D column, it will be
written as a list.
- * This is function is only called in metadata queries as the schema is not
known in advance.
+ * This is function is only called in metadata queries as the schema is not
known in advance. If the datasize is greater than 16MB, the function does not
project the dataset
Review comment:
Fixed
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> HDF5 Metadata Queries Fail with Large Files
> -------------------------------------------
>
> Key: DRILL-7578
> URL: https://issues.apache.org/jira/browse/DRILL-7578
> Project: Apache Drill
> Issue Type: Bug
> Affects Versions: 1.18.0
> Reporter: Charles Givre
> Assignee: Charles Givre
> Priority: Major
> Fix For: 1.18.0
>
>
> With large files, Drill runs out of memory when attempting to project large
> datasets in the metadata.
> This PR adds a configuration option which removes the dataset projection from
> metadata queries and fixes this issue.
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