[p2p-hackers] FreePastry 1.4.1 released

[Jeff Hoye]

We'd like to announce the availability of FreePastry 1.4.1.  The 
biggest changes since 1.4 are improvements to provide stronger 
guarantees regarding routing consistency and faster detection of faulty 
nodes.  Other features include Java 1.5 compatibility and many bug fixes.

The new release is available from:
http://freepastry.rice.edu/FreePastry/download.html

You can read the release notes at:
http://freepastry.rice.edu/FreePastry/README-1.4.1.html

Routing Consistency:
The new Consistent Join Protocol requires all members of a node's leaf 
set (neighbors) to either respond to a query message or be declared dead 
before a node may join the ring. This ensures that no two nodes claim an 
overlapping range in the ID space.

Fault Detection:
The Periodic LeafSet Protocol has been modified to exchange messages 
which each node's left and right direct neighbors in the ID space every 
20 seconds. If this ping fails then a checkLiveness is initiated, which 
will either reestablish connectivity or declare the neighbor dead within 
30 seconds. This ensures that no ID space remains unclaimed for more 
than 50 seconds.

Happy hacking,
The FreePastry team