I am seeing this lot of errors inside my /var/log/messages. Could someone help me to enlighten and fix this
regular expression has redundant nested repeat operator * /(?:(?:(?:(?<TIMESTAMP_ISO8601:timestamp>(?:(?>\d\d){1,2})-(?:(?:0?[1-9]|1[0-2]))-(?:(?:(?:0[1-9])|(?:[12][0-9])|(?:3[01])|[1-9]))T :?(?:(?:[0-5][0-9]))(?::?(?:(?:(?:[0-5]?[0-9]|60)(?:[:.,][0-9]+)?)))?(?:(?:Z|+-(?::?(?:(?:[0-5][0-9])))))?): (?BASE10NUM:elasticsearch.gc.jvm_runtime_sec(?<![0-9.+-])(?>[+-]?(?:(?:[0-9]+(?:.[0-9]+)?)|(?:.[0-9]+)))):)|(?:[(?<TIMESTAMP_ISO8601:timestamp>(?:(?>\d\d){1,2})-(?:(?:0?[1-9]|1[0-2]))-(?:(?:(?:0[1-9])|(?:[12][0-9])|(?:3[01])|[1-9]))T :?(?:(?:[0-5][0-9]))(?::?(?:(?:(?:[0-5]?[0-9]|60)(?:[:.,][0-9]+)?)))?(?:(?:Z|+-(?::?(?:(?:[0-5][0-9])))))?)][(?POSINT:process.pid\b(?:[1-9][0-9])\b)][(?<DATA:elasticsearch.gc.tags>.?)(?:\s*)*])) Total time for which application threads were stopped: (?BASE10NUM:elasticsearch.gc.threads_total_stop_time_sec(?<![0-9.+-])(?>[+-]?(?:(?:[0-9]+(?:.[0-9]+)?)|(?:.[0-9]+)))) seconds, Stopping threads took: (?<BASE10NUM:e