the state becomes Waiting for master to send event. Waiting for the slave SQL thread to free enough relay log space You are using a nonzero relay_log_space_limit value

Waiting for master update The initial state before Connecting to master. Connecting to master The thread is attempting to connect to the master. Checking master version A state that occurs very briefly, after the connection to the master is established. Registering slave on master A state that occurs very briefly after the connection to the … Read more