It seems the client Create signature changed (see below tutorial error). However, I’ve looked into client_tests and I see it passes ok all 9 tests. So I’m trying to modify the example to create an object. I still have some issues compiling, see below, maybe you can provide some help as I just started looking into apache arrow/plasma.
I’m using create.cc <http://create.cc/>, however trying to compile fails with: g++ create.cc `pkg-config --cflags --libs plasma arrow` --std=c++11 -o create In file included from /usr/local/include/plasma/plasma.h:40:0, from create.cc:15: /usr/local/include/plasma/common_generated.h:7:37: fatal error: flatbuffers/flatbuffers.h: No such file or directory #include "flatbuffers/flatbuffers.h” Before, I managed to make && make install after cmake .. -DCMAKE_BUILD_TYPE=Release -DARROW_PLASMA=on and run /release/plasma_store -m 1000000000 -s /tmp/plasma Allowing the Plasma store to use up to 1GB of memory. Starting object store with directory /dev/shm and huge page support disabled ++++ create object example modified ++++ create.cc #include <assert.h> #include <signal.h> #include <stdlib.h> #include <sys/time.h> #include <sys/types.h> #include <unistd.h> #include <random> #include "plasma/client.h" #include "plasma/common.h" #include "plasma/plasma.h" #include "plasma/protocol.h" using namespace plasma; int main(int argc, char** argv) { // Start up and connect a Plasma client. PlasmaClient client; ARROW_CHECK_OK(client.Connect("/tmp/plasma", "", PLASMA_DEFAULT_RELEASE_DELAY)); ObjectID object_id = ObjectID::from_random(); std::vector<uint8_t> data(100, 0); uint8_t metadata[] = {1}; int64_t metadata_size = sizeof(metadata); std::shared_ptr<Buffer> data_buffer; ARROW_CHECK_OK(client.Create(object_id, data.size(), &metadata[0], metadata_size, &data_buffer)); for (size_t i = 0; i < data.size(); i++) { data_buffer->mutable_data()[i] = data[i]; } // Seal the object. ARROW_CHECK_OK(client.Seal(object_id)); // Disconnect the client. ARROW_CHECK_OK(client.Disconnect()); } +++++++++ tutorial error +++++++ with https://arrow.apache.org/docs/cpp/md_tutorials_plasma.html <https://arrow.apache.org/docs/cpp/md_tutorials_plasma.html> create.cc g++ create2.cc `pkg-config --cflags --libs plasma` --std=c++11 -o create In file included from /usr/local/include/plasma/common.h:32:0, from /usr/local/include/plasma/client.h:30, from create2.cc:1: create2.cc: In function ‘int main(int, char**)’: create2.cc:12:104: error: no matching function for call to ‘plasma::PlasmaClient::Create(plasma::ObjectID&, int64_t&, uint8_t*, std::basic_string<char>::size_type, uint8_t**)’ ARROW_CHECK_OK(client.Create(object_id, data_size, (uint8_t*) metadata.data(), metadata.size(), &data)); ^ create2.cc:12:104: note: candidate is: In file included from create2.cc:1:0: /usr/local/include/plasma/client.h:92:10: note: arrow::Status plasma::PlasmaClient::Create(const ObjectID&, int64_t, const uint8_t*, int64_t, std::shared_ptr<arrow::Buffer>*, int) Status Create(const ObjectID& object_id, int64_t data_size, const uint8_t* metadata, ^ /usr/local/include/plasma/client.h:92:10: note: no known conversion for argument 5 from ‘uint8_t** {aka unsigned char**}’ to ‘std::shared_ptr<arrow::Buffer>*’ Thanks, Ovidiu > On 02 May 2018, at 14:08, Uwe L. Korn <uw...@xhochy.com> wrote: > > Hello Ovidiu, > > we actually would like to keep the tutorial in line with the API we have in > master. Can you post the errors you're getting? > > This would help us in understanding what is outdated in the steps. > > Uwe > > On Wed, May 2, 2018, at 11:53 AM, Ovidiu-Cristian MARCU wrote: >> Hi, >> >> Trying to follow the steps in >> https://arrow.apache.org/docs/cpp/md_tutorials_plasma.html >> <https://arrow.apache.org/docs/cpp/md_tutorials_plasma.html> with master >> branch does not work. >> Could you please provide the arrow version that is compatible with this >> tutorial? >> >> Thanks, >> Ovidiu
