BewareMyPower commented on issue #442:
URL:
https://github.com/apache/pulsar-client-cpp/issues/442#issuecomment-2317218119
I just double checked the issue and it looks like a bug with protobuf:
```
#1 0x0000ffffb1a58d2c in
pulsar::proto::KeyValue::_InternalSerialize(unsigned char*,
google::protobuf::io::EpsCopyOutputStream*) const () from
/usr/local/lib/python3.10/dist-packages/pulsar_client.libs/libpulsar-8dc83e12.so
#2 0x0000ffffb1cc50e0 in
google::protobuf::internal::WireFormatLite::InternalWriteMessage(int,
google::protobuf::MessageLite const&, int, unsigned char*,
google::protobuf::io::EpsCopyOutputStream*) ()
from
/usr/local/lib/python3.10/dist-packages/pulsar_client.libs/libpulsar-8dc83e12.so
#3 0x0000ffffb1a5b718 in
pulsar::proto::MessageMetadata::_InternalSerialize(unsigned char*,
google::protobuf::io::EpsCopyOutputStream*) const () from
/usr/local/lib/python3.10/dist-packages/pulsar_client.libs/libpulsar-8dc83e12.so
#4 0x0000ffffb1c96478 in
google::protobuf::SerializeToArrayImpl(google::protobuf::MessageLite const&,
unsigned char*, int) () from
/usr/local/lib/python3.10/dist-packages/pulsar_client.libs/libpulsar-8dc83e12.so
#5 0x0000ffffb1c94e98 in
google::protobuf::MessageLite::SerializePartialToArray(void*, int) const ()
from
/usr/local/lib/python3.10/dist-packages/pulsar_client.libs/libpulsar-8dc83e12.so
#6 0x0000ffffb1c94d50 in
google::protobuf::MessageLite::SerializeToArray(void*, int) const () from
/usr/local/lib/python3.10/dist-packages/pulsar_client.libs/libpulsar-8dc83e12.so
#7 0x0000ffffb1920704 in pulsar::Commands::newSend(pulsar::SharedBuffer&,
pulsar::proto::BaseCommand&, pulsar::Commands::ChecksumType,
pulsar::SendArguments const&) ()
from
/usr/local/lib/python3.10/dist-packages/pulsar_client.libs/libpulsar-8dc83e12.so
```
I tried the python client on macOS and it does not have this error but
encountered the same issue for Ubuntu.
However, I tried the C++ client 3.5.1 on Ubuntu and this error does not
happen:
```c++
#include <pulsar/Client.h>
using namespace pulsar;
int main() {
const std::string topic = "test-topic";
Client client("pulsar://host.docker.internal:6650");
Producer producer;
client.createProducer(topic, producer);
MessageBuilder::StringMap properties;
for (int i = 0; i < 3000; i++) {
properties["key" + std::to_string(i)] = "{\"foo\": \"bar\"}";
}
auto msg =
MessageBuilder().setProperties(properties).setContent("test-message").build();
producer.send(msg);
client.close();
}
```
Increasing the `i` in loop does not fail with segfault as well. (if the
properties are too big, `ResultMessageTooLarge` will be returned)
It might be an issue from the Python client side. So let me move it to
`pulsar-client-python` first.
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