Wes McKinney created ARROW-3256:
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Summary: [JS] File footer and message metadata is inconsistent
Key: ARROW-3256
URL: https://issues.apache.org/jira/browse/ARROW-3256
Project: Apache Arrow
Issue Type: Bug
Components: JavaScript
Reporter: Wes McKinney
Fix For: JS-0.4.0
I added some assertions to the C++ library and found that the body length in
the file footer and the IPC message were different
{code}
##########################################################
JS producing, C++ consuming
##########################################################
==========================================================
Testing file
/home/travis/build/apache/arrow/integration/data/struct_example.json
==========================================================
-- Creating binary inputs
node --no-warnings /home/travis/build/apache/arrow/js/bin/json-to-arrow.js -a
/tmp/tmplbm3vbwz/3d2269c960f148b6b94e5f881c0bf9ca_struct_example.json_to_arrow
-j /home/travis/build/apache/arrow/integration/data/struct_example.json
-- Validating file
/home/travis/build/apache/arrow/cpp-build/debug/json-integration-test
--integration
--arrow=/tmp/tmplbm3vbwz/3d2269c960f148b6b94e5f881c0bf9ca_struct_example.json_to_arrow
--json=/home/travis/build/apache/arrow/integration/data/struct_example.json
--mode=VALIDATE
Command failed:
/home/travis/build/apache/arrow/cpp-build/debug/json-integration-test
--integration
--arrow=/tmp/tmplbm3vbwz/3d2269c960f148b6b94e5f881c0bf9ca_struct_example.json_to_arrow
--json=/home/travis/build/apache/arrow/integration/data/struct_example.json
--mode=VALIDATE
With output:
--------------
/home/travis/build/apache/arrow/cpp/src/arrow/ipc/reader.cc:581 Check failed:
(message->body_length()) == (block.body_length)
{code}
It appears that the order of the lengths is flipped in
https://github.com/apache/arrow/blob/master/js/src/ipc/writer/binary.ts#L77
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