Explore the role and functionality of the binlog dump thread in MySQL replication, a critical component covered in the Oracle MySQL 8.0 Database Administrator 1z0-908 certification exam.
Table of Contents
Question
What does the binlog dump thread do?
A. It monitors and schedules the rotation/deletion of the binary logs.
B. It reads the relay log and executes the events contained in them.
C. It acquires a lock on the binary log for reading each event to be sent to the slave.
D. It connects to the master and asks it to send updates recorded in its binary logs.
Answer
D. It connects to the master and asks it to send updates recorded in its binary logs.
Explanation
The binlog dump thread connects to the master server and requests updates recorded in its binary logs to be sent to the slave server. When a slave server connects to its master, it creates a binlog dump thread that establishes a connection with the master and continuously requests the master’s binary log events.
The binlog dump thread reads the events from the binary log files on the master server, acquires a lock to ensure a consistent read, and sends the events to the slave server. This process ensures that the slave server receives all the updates executed on the master, enabling the slave to maintain an up-to-date copy of the data.
Oracle MySQL 8.0 Database Administrator 1z0-908 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the Oracle MySQL 8.0 Database Administrator 1z0-908 exam and earn Oracle MySQL 8.0 Database Administrator 1z0-908 certification.