The TSpaces project was officially declared a SUCCESS at the end
of 2001. Although the TSpaces code and project live on, we are
no longer doing research on TSpaces itself. Instead, we are
using TSpaces as we explore
Grid Computing in the
OptimalGrid Project.
After all of the experience we've had with distributed computing
and TSpaces, we can really appreciate all of the great things
TSpaces gives us in Grid Computing. It gives us:
- Excellent inter-agent communication
- Fault-tolerance communication links
- Service Registration
- Service Employment
- Event notification
- Message Content browsing
TSpaces is lighter and more flexible than other heavy-weight message
queuing packages, and it also provides more useful infrastructure
than the peer-to-peer packages.
Our past activities, Enterprise TSpaces and the TSpaces services
suite ended in different ways. The TSpaces services suite
was completed, but stopped short of making into the general
"Services Oriented Architecture" of IBM. As a service mechanism,
it is now out of date. Enterprise TSpaces (ETS) was a very
promising activity involving replicated spaces, fault-tolerance
failover of clients to other supporting servers and distributed
transactions. Though about 3/4 finished, the ETS work stopped
because we didn't see a significant customer base for this large
body of work. Unfortunate, but that's the way some things go.
Version 3, which was originally supposed to contain all of
Enterprise TSpaces, actually contains quite a lot of other
features, fixes and upgrades. Look at
what's new in Version 3.
We are no longer conducting research related to
MoDAL.
Furthermore, was also MoDAL also
retired from alphaworks.
