Resolution:
Prior to TIBCO Rendezvous 7.2, we did not have "rotating log file" functionality in our product.  However, on UNIX systems you could create a shell/perl script to rotate the log file yourself.

For example, suppose you are using "rvrd.log" as your RVRD log file, and you create an empty file called "rvrd.empty".

In your script, you can check the size of the "rvrd.log"; if its size is greater than a certain level, you could run something like the following, without shutting down your RVRD:

cp rvrd.log rvrd.i.log (here 1 <= i <= n)
cp rvrd.empty rvrd.log

However, with the release of TIBCO Rendezvous 7.2, log rotation is now supported.  For further information, please refer to "Log Rotation" in the section "Log Destination" in "Chapter 4 Rendezvous Daemon (rvd)" of the TIBCO Rendezvous Administration manual.