Eu perdi "@" na minha consulta. :-) Trabalhando agora.
LOAD DATA LOCAL INFILE '/home/xxxx/cloud_20181003.txt' INTO TABLE cloud_log_test FIELDS TERMINATED BY ',' LINES TERMINATED BY '\n' (@CACHECACHESTATUS,CACHERESPONSEBYTES) SET CacheCacheStatus = REPLACE(@CacheCacheStatus,'"CacheCacheStatus":"','');