| 摘要 |
Electronic mail message processing includes: obtaining a set of keywords associated with an electronic mail message; updating, based at least in part on the set of keywords, a set of inverted index records stored in a level 1 cache; determining whether size of the set of inverted index records stored in the level 1 cache exceeds a first preset threshold value; in the event that the first preset threshold value is exceeded, transferring the set of inverted index records in the level 1 cache to a level 2 cache; determining whether size of a level 2 cache file exceeds a second preset threshold value; in the event that the second preset threshold value is exceeded, transferring, according to a path file, inverted index records in the level 2 cache file to a level 3 cache storing a set of inverted index files. |
