Choose the best answer.Your MySQL environment has asynchronous position based-replication with one master and one slave.The slave instance had a disk I/O problem, so it was stopped.You determined thatA、The slave relay logs should be deleted; then execute START SLAVE;B、The slave needs to be restored from backup.C、The slave relay logs should be deleted; execute CHANGE MASTER to adjust the replication relay log file name, then issue START SLAVE;D、The relay logs from the master should be used to replace the corrupted relay logs.-易过题库-题库最全的搜题网站

Choose the best answer.
Your MySQL environment has asynchronous position based-replication with one master and one slave.
The slave instance had a disk I/O problem, so it was stopped.
You determined that the slave relay log files were corrupted and unusable, but no other files are damaged.
You restart MySQL Server.
How can replication be restored?

AThe slave relay logs should be deleted; then execute START SLAVE;

BThe slave needs to be restored from backup.

CThe slave relay logs should be deleted; execute CHANGE MASTER to adjust the replication relay log file name, then issue START SLAVE;

DThe relay logs from the master should be used to replace the corrupted relay logs.

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