Last Updated：2022/12/24
The idea of having a time lag is to allow for situations when a corruption of some type affects the source server. If a corruption occurs, you do not want it to replicate to the copy of the database, so the time lag gives administrators the opportunity to recognize that a problem exists and then to have the ability to switch from the database copy if the corruption is so bad that it renders the original database unusable.
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The
idea
of
having
a
time
lag
is
to
allow
for
situations
when
a
corruption
of
some
type
affects
the
source
server.
If
a
corruption
occurs,
you
do
not
want
it
to
replicate
to
the
copy
of
the
database,
so
the
time
lag
gives
administrators
the
opportunity
to
recognize
that
a
problem
exists
and
then
to
have
the
ability
to
switch
from
the
database
copy
if
the
corruption
is
so
bad
that
it
renders
the
original
database
unusable.
