Methods and apparatus, including computer program products, implementing and using techniques for performing a transaction across one or more resources. A connection is established to one or more resources that are required by a transaction. Each connected resource is registered with a transaction manager. One of the resources is designated as an anchor resource. The one or more resources are updated in accordance with the transaction; and a two-phase commit with each resource involved in the transaction is performed, wherein the anchor resource is committed to after every other resource has been committed to. Methods and apparatus, including computer program products, implementing and using techniques for recovering one or more interrupted transactions across one or more resources are also described.