Details
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Improvement
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Status: Resolved
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Major
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Resolution: Fixed
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0.14.0
Description
cmake_modules/DefineOptions.cmake
define_option(ARROW_CUDA "Build the Arrow CUDA extensions (requires CUDA toolkit)" ON)
define_option(ARROW_PLASMA "Build the plasma object store along with Arrow" ON)
The corrent sequence is as follow:
(1) plasma_client.Create(object_id, size, nullptr, 0, &buff, 1); // where device_num > 0
(2) plasma_client.Seal(object_id);
(3) buff = nullptr;
(4) plasma_client.Release(object_id);
(5) plasma_client.Delete(object_id);
To set buff nullptr (step 3) just before release the object (step 4) because CloseIpcBuffer is in its destructor (class CudaBuffer).
If a user does not do that promptly, CloseIpcBuffer will be blocked.
Then, the following error may occure when another object created.
IOError: Cuda Driver API call in /home/zilliz/arrow/cpp/src/arrow/gpu/cuda_context.cc at line 156 failed with code 208: cuIpcOpenMemHandle(&data, *handle, CU_IPC_MEM_LAZY_ENABLE_PEER_ACCESS) (nil)
