'Hierarchical locking' presentation slideshows

IBM DB2 10.5 BLU Acceleration

1.42k views • 53 slides

Distributed Object Transactions

Distributed Object Transactions. Transaction principles Concurrency control The two-phase commit protocol Services for distributed object transactions. Transaction Principles. Transaction cluster several object requests into a coarse-grained unit

303 views • 13 slides

Transactions

Transactions . Concurrency Control. Improved lock-based concurrency with multiple writes. Update Locks. Shared & Exclusive Locks. An Example. 11 steps. Upgrading Locks. Use Shared Locks when reading Upgrade (if possible) to Exclusive Lock when just before writing

239 views • 12 slides