BewareMyPower commented on issue #9796:
URL: https://github.com/apache/pulsar/issues/9796#issuecomment-791121843
You can modify the callback and retry to check if the issue is caused by
`LOG_INFO`. Here're some callbacks that you can try.
For example,
```c++
// An empty callback
void callback(Result code, const MessageId& msgId) {
}
```
```c++
// Access fields of `msgId` instead the `msgId` itself
void callback(Result code, const MessageId& msgId) {
LOG_INFO("Received code: " << code << " -- MsgID: " << msgId.ledgerId()
<< ", " << msgId.entryId() << ", "
<< msgId.partition() << ", " <<
msgId.batchIndex());
}
```
```c++
// Use `std::cout` instead of `LOG_INFO`
void callback(Result code, const MessageId& msgId) {
std::cout << "Result: " << code << ", msgId: " << msgId << std::endl;
}
```
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