Wes McKinney created ARROW-3212:
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Summary: [C++] Create deterministic IPC metadata
Key: ARROW-3212
URL: https://issues.apache.org/jira/browse/ARROW-3212
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: Wes McKinney
Fix For: 0.11.0
Currently, the amount of padding bytes written after the IPC metadata header
depends on the current position of the {{OutputStream}} passed. So if the
message begins on an unaligned (not multiple of 8) offset, then the content of
the metadata will be different than if it did. This seems like a leaky
abstraction -- aligning the stream should probably be handled separately from
writing the IPC protocol.
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