[ARROW-13529] Too many releases in IPC writer when writing slices

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 5.0.0
• Fix Version/s: 6.0.0
• Component/s: Go
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/29182
• Assignee: Matthew Topol
• Reporter: Curt Hash
• Created: 02/Aug/21 15:15
• Updated: 11/Jan/23 08:33
• Resolved: 29/Sep/21 20:40

Description

https://github.com/apache/arrow/blob/master/go/arrow/ipc/writer.go#L441

In the *arrow.StringType case, in the needTruncate code path (happens when writing a record.NewSlice), a reference to data.buffers[2] is appended to the payload body. It gets Release'd here without any Retain.

The code for the FixedWidthType and BinaryType cases is similar.

The attached code reproduces the issue.

Issue Links

• links to: GitHub Pull Request #11270