1. We have found these flags in CrawlDatum class: public static final byte STATUS_SIGNATURE = 0;
public static final byte STATUS_DB_UNFETCHED = 1; public static final byte STATUS_DB_FETCHED = 2; public static final byte STATUS_DB_GONE = 3; public static final byte STATUS_LINKED = 4; public static final byte STATUS_FETCH_SUCCESS = 5; public static final byte STATUS_FETCH_RETRY = 6; public static final byte STATUS_FETCH_GONE = 7; Though the names of these flags describe their aims, it is not clear completely what they mean and what is the difference between STATUS_DB_FETCHED and STATUS_FETCH_SUCCESS for example. 2. Where new links are being added into CrawlDB?
