Thanks Ted for your reply. What is the the problem of watches and sequential files? If you can describe in detail, I can better understand the problem.
2012/10/29 Ted Dunning <tdunn...@maprtech.com> > Create cannot be idempotent because of the problem of watches and > sequential files. > > Similarly, mkdirs, rename and delete cannot generally be idempotent. In > particular applications, you might find it is OK to treat them as such, but > there are definitely applications where they are not idempotent. > > > On Sun, Oct 28, 2012 at 2:40 AM, lei liu <liulei...@gmail.com> wrote: > >> I think these methods should are idempotent, these methods should be repeated >> calls to be harmless by same client. >> >> >> Thanks, >> >> LiuLei >> > >