Robert Nishihara created ARROW-1647: ---------------------------------------
Summary: [Plasma] Potential bug when reading/writing messages. Key: ARROW-1647 URL: https://issues.apache.org/jira/browse/ARROW-1647 Project: Apache Arrow Issue Type: Bug Components: Plasma (C++) Reporter: Robert Nishihara When we write the "length" field, it is an {code}int64_t{code}. See https://github.com/apache/arrow/blob/dc129d60fbffbf3a5b71b1f7987f7dab948b3d61/cpp/src/plasma/io.cc#L63. However, when we read the "length" field, it is a {code}size_t{code}. See https://github.com/apache/arrow/blob/dc129d60fbffbf3a5b71b1f7987f7dab948b3d61/cpp/src/plasma/io.cc#L98. I'm not sure if this is a bug, but it looks like it might be. And I suspect there is an issue somewhere in this area because a couple Ray users on non-standard platforms have reported issues with a check failure at https://github.com/apache/arrow/blob/dc129d60fbffbf3a5b71b1f7987f7dab948b3d61/cpp/src/plasma/io.cc#L94. See https://github.com/ray-project/ray/issues/1008. -- This message was sent by Atlassian JIRA (v6.4.14#64029)