cool - can you point me to some docs about how to configure Rocks DB? I searched the online docs and found nothing substantial. Also - If I'm using HDFS (S3backed ) cluster, how would that effect RocksDB? can I configure it to run on optimized SSD etc?
any help is appreciated. On Sun, Apr 24, 2016 at 7:57 AM, John Sherwood <j...@vt.edu> wrote: > This sounds like you have some per-key state to keep track of, so the > 'correct' way to do it would be to keyBy the guid. I believe that if you > run your environment using the Rocks DB state backend you will not OOM > regardless of the number of GUIDs that are eventually tracked. Whether > flink/stream processing is the most effective way to achieve your goal, I > can't say, but I am fairly confident that this particular aspect is not a > problem. > > On Sat, Apr 23, 2016 at 1:13 AM, Chen Bekor <chen.be...@gmail.com> wrote: > >> hi all, >> >> I have a stream of incoming object versions (objects change over time) >> and a requirement to fetch from a datastore the last known object version >> in order to link it with the id of the new version, so that I end up with >> a linked list of object versions. >> >> all object versions contain the same guid, so I was thinking about using >> flink streaming in order to assure ordering and avoid concurrency / race >> conditions in the linkage process (object version might arrive unordered or >> may arrive at spikes) >> >> if I use the object guid as a key for a keyed stream I am concerned I >> will end up with millions of windowed streams hence causing OOM. >> >> what do you think should be the right approach? do you think flink is the >> right technology for this task? >> > >
