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The Replica Location Service: Design and ANN L. CHERVENAK, ROBERT SCHULER, SHISHIR BHARATHI, NAVEEN
 

Summary: The Replica Location Service: Design and
Experience
ANN L. CHERVENAK, ROBERT SCHULER, SHISHIR BHARATHI, NAVEEN
PALAVALLI, CARL KESSELMAN
University of Southern California Information Sciences Institute
IAN FOSTER, MATEI RIPEANU,
The University of Chicago, and
ADRIANA IAMNITCHI
Duke University1
________________________________________________________________________
We describe the implementation and evaluate the performance of a Replica Location Service that is part of the
Globus Toolkit Versions 3.0 and 4.0. A Replica Location Service (RLS) provides a mechanism for registering
the existence of replicas and discovering them. Features of our implementation include the use of soft state
update protocols to populate a distributed index and optional Bloom filter compression to reduce the size of
these updates. We present the design of the RLS system and different deployment options for the distributed
index. We also present performance measurements that demonstrate that RLS scales well for individual servers
with millions of entries and hundreds of clients. We describe the use of RLS in several production Grid
environments and describe how RLS has been integrated into higher-level data management services.
Categories and Subject Descriptors
General Terms: Replica Location Service, Replica Management, Grids, Data Management

  

Source: Agrawal, Gagan - Department of Computer Science and Engineering, Ohio State University

 

Collections: Computer Technologies and Information Sciences