Hello,

I have some questions regarding Exponential Backoff as a
means to adjust the retransmission interval, and since I
did not find anything related on the web, I thought it
might be a good idea to ask some developers:

(1) Exponential backoff as such only means lengthening of
the interval, however, common applications (e.g. TCP) em-
ploy methods of shortening it, too. How do you interpret
exponential backoff as given in the WSRM specification --
in the strict sense or in a way that allows for a shrin-
king interval, too?

(2) What is this adjustment meant to relate to? Should it
happen to individual messages or should it affect all mes-
sages in the same way?

(3) This arose from my looking at the code: Sandesha has
some support for the exponential backoff strategy, but
there seems to be no actual adjustment of the interval.
Is this right?


As a follow-up to the old thread about the message number
problem in Sandesha: I did change my copy of the code to
use BigInteger instead of long, however, I then got dis-
tracted and Sandesha's development seems to have progres-
sed in the meantime. Would it be of use if I re-applied
the modifications to a more current version and sent a
patch, or has the problem been dealt with already?

Regards,

Philipp Reinecke

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