Techniques for DLM optimization with transferring lock...

Details Techniques for DLM optimization with transferring lock... Techniques for DLM optimization with transferring lock...

2005-07-19

2005-07-19

Alam, Shahid (Department: 2172)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000, C707S793000, C707S793000

Reexamination Certificate

active

06920454

ABSTRACT:
Techniques for optimizing a distributed lock manager (DLM) include transferring lock information to a new master without freezing one or more shared resources. A hash value range is associated with the resources by a hash function. A first master node is established as master for the resources in response to a hash value range being mapped to the first master node. Responsibility for mastering the resources is transferred from the first master node to a second master node during a transfer time interval. Lock requests received at a receiving node, either the first master node or the second master node, are processed by the receiving node during the transfer time interval.

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