… case. First, some facts about the system and how data was lost: MySQL had a dedicated partition on XFS file system Server… correct PK id for specific tables by just mapping data dictionary table records to index records. Instead I had to grep for specific character sequences against…
Post: To UUID or not to UUID ?
March 13, 2007 By 28 Comments
…sequences, for example you can have 256 growing sequences (with high byte used for sequence number) which will have 256 “hotspots” – good enough to… in MySQL 5.1 Data Clustering This again applies to… may be (user_id,msg_id) in some cases but… in optimized sort order to minimize how random they are -…
Post: Can Innodb Read-Ahead reduce read performance ?
June 26, 2007 By 2 Comments
…LOG — Log sequence number 586 10447960 Log flushed up to … process no. 3956, id 1157658976, state: sleeping Number… it has to wait for it to complete. It …MySQL AB side) – to improve how Innodb read-ahead works by having more overlap between requests so thread would rarely need to stall unable to…
