@brief Returns the current out queue length.
The out queue contains messages waiting to be sent to, or acknowledged by, the broker.
An application should wait for this queue to reach zero before terminating to make sure outstanding requests (such as offset commits) are fully processed.
@returns number of messages in the out queue.
See Implementation
@brief Returns the current out queue length.
The out queue contains messages waiting to be sent to, or acknowledged by, the broker.
An application should wait for this queue to reach zero before terminating to make sure outstanding requests (such as offset commits) are fully processed.
@returns number of messages in the out queue.