Hi David, Thanks for the suggestions. 1. Memory lock cannot support multiple drivers. Documentation will be updated with this limitation. 2. I agree that in case of failure reverting the changes is necessary. Will take care of this point. 3. You are right refresh using table name would not work. I think we can introduce refresh using path for this scenario.
Thanks Kunal Kapoor On Fri, Jun 22, 2018 at 12:08 PM David CaiQiang <[email protected]> wrote: > Hi Kunal, > I have some questions. > > *Problem(Locking):* > Does the memory lock support that the multiple drivers concurrently load > data to the same table? maybe it should note this limitation. > > *Problem(Write with append mode):* > 1. atomicity > After the overwrite operation failed, maybe the old file is destroyed. It > should be able to recover the old file. > > *Problem(Alter rename):* > If the table folder is different with the table name, maybe "refresh > table" command should be enhanced. > > > > ----- > Best Regards > David Cai > -- > Sent from: > http://apache-carbondata-dev-mailing-list-archive.1130556.n5.nabble.com/ >
