Hi All, We have table with 99 Million records, with fulltext index. But when there is not load the sql's performance in just 6 sec, but when anyother jobs like Index creation or data load is happening its take close to 3 min for the same query to execute, any ways to improve the performance of this query.
I have set innodb_buffer=11GB, key_buffer=3GB, 8 CPU, total 16 GB RAM mysql> explain select -> -> ITEM_ID,LEAF_CATEG_ID,SLR_ID,ITEM_TITL,CURNT_PRICE_USD,START_PRICE_USD,RSRV_PRICE_USD,BIN_PRICE_USD,QTY_AVAIL,QTY_SOLD, -> BIDCOUNT,AUCT_DURTN_DAYS,AUCT_TYPE_CODE,SUCCESS_YN,BIN_SOLD_FLAG,BOLD_FEE_FLAG,HIGHLIGHT_FEE_FLAG,GALLERY_FEE_FLAG, -> GALLERY_FEATURED_FEE_FLAG,FEATURED_FEE_FLAG,GIFT_FEE_FLAG,DATE_FORMAT(AUCT_START_DATE,'%Y-%m-%d '> %H:%i:%s'),DATE_FORMAT(AUCT_END_DATE,'%Y-%m-%d %H:%i:%s'),GMS_USD,RSRV_FLAG from amc_rch where match(ITEM_TITL) -> AGAINST('BOOKS') > 0 and CURNT_PRICE_USD between ifnull(null,0) and ifnull(null,999999999999) limit 1000; +----+-------------+---------------+----------+--------------------------+--------------------------+---------+------+------+-------------+ | id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra | +----+-------------+---------------+----------+--------------------------+--------------------------+---------+------+------+-------------+ | 1 | SIMPLE | amc_rch | fulltext | ER_IT_CTX_IDX_0805201045 | ER_IT_CTX_IDX_0805201045 | 0 | | 1 | Using where | +----+-------------+---------------+----------+--------------------------+--------------------------+---------+------+------+-------------+ 1 row in set (0.05 sec)