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https://issues.apache.org/jira/browse/ARROW-2199?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16377359#comment-16377359
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ASF GitHub Bot commented on ARROW-2199:
---------------------------------------
BryanCutler commented on a change in pull request #1646: ARROW-2199: [JAVA]
Control the memory allocated for inner vectors in containers.
URL: https://github.com/apache/arrow/pull/1646#discussion_r170688920
##########
File path:
java/vector/src/main/java/org/apache/arrow/vector/BaseVariableWidthVector.java
##########
@@ -174,14 +174,16 @@ public void setInitialCapacity(int valueCount) {
* @param valueCount desired number of elements in the vector
* @param density average number of bytes per variable width element
*/
+ @Override
public void setInitialCapacity(int valueCount, double density) {
- final long size = (long) (valueCount * density);
- if (size < 1) {
- throw new IllegalArgumentException("With the provided density and value
count, potential capacity of the data buffer is 0");
- }
+ long size = (long) (valueCount * density);
if (size > MAX_ALLOCATION_SIZE) {
throw new OversizedAllocationException("Requested amount of memory is
more than max allowed");
}
+
+ if(size == 0) {
Review comment:
I'm not sure if this is all that useful, but this means we can't have an
initial capacity of 0? Is that something that we should still consider?
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> [JAVA] Follow up fixes for ARROW-2019. Ensure density driven capacity is
> never less than 1 and propagate density throughout the vector tree
> -------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: ARROW-2199
> URL: https://issues.apache.org/jira/browse/ARROW-2199
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Java - Vectors
> Reporter: Siddharth Teotia
> Assignee: Siddharth Teotia
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.9.0
>
>
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