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https://issues.apache.org/jira/browse/ARROW-4213?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated ARROW-4213:
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Labels: flight pull-request-available (was: flight)
> [Flight] C++ and Java implementations are incompatible
> ------------------------------------------------------
>
> Key: ARROW-4213
> URL: https://issues.apache.org/jira/browse/ARROW-4213
> Project: Apache Arrow
> Issue Type: Bug
> Components: FlightRPC
> Reporter: David Li
> Priority: Major
> Labels: flight, pull-request-available
> Fix For: 0.13.0
>
>
> A C++ client cannot request streams from a Java service, nor can it decode
> the schema from GetFlightInfo.
> Schema: in Java, GetFlightInfo encodes the schema directly via flatbuffers.
> C++ expects it to be encoded as an IPC message. This isn't a problem in Java
> as a method exists to decode such schemas, but in C++ the API for reading
> such a schema isn't really exposed. I'm willing to submit a patch for this,
> but it's not clear to me which scheme is preferred.
> Streams: in Java, DoGet starts with an ArrowMessage containing a schema. C++
> does not expect this and segfaults when it tries to decode the message as a
> record batch. Based on the presentations I've seen, I think C++ is in the
> wrong here; I have a patch to fix this that I could clean up and submit.
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