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https://issues.apache.org/jira/browse/ARROW-2199?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16386499#comment-16386499
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ASF GitHub Bot commented on ARROW-2199:
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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_r172284444
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File path: java/vector/src/main/codegen/templates/UnionVector.java
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@@ -282,6 +282,7 @@ private void reallocTypeBuffer() {
long newAllocationSize = baseSize * 2L;
newAllocationSize = BaseAllocator.nextPowerOfTwo(newAllocationSize);
+ newAllocationSize = Math.max(newAllocationSize, 1);
Review comment:
Well, technically given 0 the next power of 2 should be 1. So I think that
function needs the fix and then the extra check here should be safe to remove.
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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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