这里可能有联系，因为为了成功地执行 Replicator 发出的添加、删除和更新请求，需要持有数据库信号量。

There is a relationship here, as the database semaphore is needed to successfully execute the add, delete, and update requests from the Replicator.

youdao

这个命令将立即删除信号量集及其数据结构，并唤醒所有正在等待的进程(如果发生错误，则返回，并将errno设置为EIDRM)。

This command immediately removes the semaphore set and its data structures, awakening all waiting processes (with an error return and errno set to EIDRM).

youdao