It should be possible to do this without storing the information in the DB.
Again using s...@h main, just keep track of the "trustedness" of the hosts and
see what the failure rate is on these hosts some time in the future.
jm7
Raistmer
<raist...@mail.ru
> To
Sent by: <boinc_dev@ssl.berkeley.edu>
<boinc_dev-bounce cc
s...@ssl.berkeley.ed
u> Subject
[boinc_dev] Adaptive replication
(dis)proving experiment
11/10/2009 11:19
PM
To estimate confidence level for result returned under adaptive replication
and vitality of this approach I propose such experiment:
Run on SETI main (cause we talk about statistical approach small user/host
base and much lower device diversity of SETI beta will not fit) under
adaptive replication for some time, enough to determine "trusted" hosts and
go to replication of 1 for them.
But keep track of all single replicated tasks.
Then reissue all single replicated tasks again (and keep in mind, that all
their results alrady in science databese) and do standart validation
between
previously returned (and still keeped - it's required for this experiment)
result and newly returned one. % of failed initially returned results will
show experimentally if adaptive replication is viable idea or ... not :)
Such experiment also (if we will keep results we eventually can avoid
master
database damage so it can be done) will show how much performance benefit
we
really can get (what will be % of "trusted" hosts and so on).
One real complication - it requires to store recived results for pretty
long
time - big load on current SETI infrastructure possible.
wbr
Raistmer
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