what does it mean ?

[rossata]

2009-02-12 12:39:53,547 WARN [org.jgroups.protocols.pbcast.GMS] join(26.2.221.148:32787) sent to 26.2.221.132:34077 timed out, retrying

why my joss wants to ssnt to another jboss on another server machine ?

What does it mean ?