Querying the Internet with PIER: "The database research community prides itself on
scalable technologies. Yet database systems traditionally
do not excel on one important scalability dimension:
the degree of distribution. This limitation
has hampered the impact of database technologies
on massively distributed systems like the Internet.
In this paper, we present the initial design of
PIER, a massively distributed query engine based
on overlay networks, which is intended to bring
database query processing facilities to new, widely
distributed environments. We motivate the need for
massively distributed queries, and argue for a relaxation
of certain traditional database research goals
in the pursuit of scalability and widespread adoption.
We present simulation results showing PIER
gracefully running relational queries across thousands
of machines, and show results from the same
software base in actual deployment on a large experimental