可以白话解释一下这段文档中的意思吗

WaitForExclusive If there is already a producer connected, the producer creation is pending (rather than timing out) until the producer gets the Exclusive access.

The producer that succeeds in becoming the exclusive one is treated as the leader. Consequently, if you want to implement a leader election scheme for your application, you can use this access mode. Note that the leader pattern scheme mentioned refers to using Pulsar as a Write-Ahead Log (WAL) which means the leader writes its “decisions” to the topic. On error cases, the leader will get notified it is no longer the leader only when it tries to write a message and fails on appropriate error, by the broker.
中的下面这段文字吗?因为不是开发人员不理解内部的意思
Note that the leader pattern scheme mentioned refers to using Pulsar as a Write-Ahead Log (WAL) which means the leader writes its “decisions” to the topic. On error cases, the leader will get notified it is no longer the leader only when it tries to write a message and fails on appropriate error, by the broker.