Hi Aljoscha, Thanks, that makes sense. I will start using RocksDB right away then.
Josh On Wed, Jun 15, 2016 at 1:01 PM, Aljoscha Krettek <aljos...@apache.org> wrote: > Hi, > right now migrating from one state backend to another is not possible. I > have it in the back of my head, however, that we should introduce a common > serialized representation of state to make this possible in the future. > (Both for checkpoints and savepoints, which use the same mechanism > underneath.) > > Cheers, > Aljoscha > > On Wed, 15 Jun 2016 at 00:04 Josh <jof...@gmail.com> wrote: > >> I'm trying to decide whether to set-up RocksDB now or later. >> >> The state for my Flink jobs right now will be able to fit into memory, so >> I can use the filesystem state backend. In a few months time it is likely >> the state will no longer fit into memory, so I will want to use the RocksDB >> backend. >> >> I was just wondering if it's possible/easy to use savepoints to migrate >> existing state from the filesystem backend to the RocksDB backend? As I >> would not want to lose any job state when switching to RocksDB. If there's >> a way to do it then I can worry about RocksDB later. >> >> Thanks! >> Josh >> >
