1--let $KEYRING_PARAMS=--early-plugin-load="keyring_file=$KEYRING_PLUGIN" --loose-keyring_file_data=$MYSQL_TMP_DIR/mysecret_keyring1 $KEYRING_PLUGIN_OPT
2--let $redo_log_mode=KEYRING_KEY
3--source include/log_encrypt_4.inc
4