pitrou commented on code in PR #35679:
URL: https://github.com/apache/arrow/pull/35679#discussion_r1211334600
##########
cpp/src/arrow/flight/transport/grpc/serialization_internal.cc:
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@@ -380,6 +382,14 @@ ::grpc::Status FlightDataDeserialize(ByteBuffer* buffer,
return ::grpc::Status(::grpc::StatusCode::INTERNAL,
"Unable to read FlightData body");
}
+ // XXX: due to where we sit, we can't use a custom allocator
+ // XXX: any error here will likely crash or hang gRPC!
+ auto status =
+ util::EnsureAlignment(std::move(out->body), 64,
default_memory_pool())
Review Comment:
Isn't 64 a bit heavy-handed? Basically, and assuming the distribution of
gRPC slice alignments is uniform, we will reallocate almost all incoming
buffers?
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