Thanks to all ! I was thinking about hazelcast hashmap
> On 12. Feb 2021, at 16:08, Chris Sampson <chris.samp...@naimuri.com> wrote: > > I'm pretty sure they don't, you need to use an external implementation, such > as Redis. > > The DistributedMapCacheServer is a reference implementation but there are > alternatives - see the list of available implementations in the "Distributed > Cache Service" property of the PutDistributedMapCache processor docs [1]. > > You can also implement your own by extending the DistributedCacheServer class. > > > [1]: > https://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi/nifi-standard-nar/1.12.1/org.apache.nifi.processors.standard.PutDistributedMapCache/index.html > > <https://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi/nifi-standard-nar/1.12.1/org.apache.nifi.processors.standard.PutDistributedMapCache/index.html> > > --- > Chris Sampson > IT Consultant > chris.samp...@naimuri.com <mailto:chris.samp...@naimuri.com> > <https://www.naimuri.com/> > > > On Fri, 12 Feb 2021 at 14:48, Jorge Machado <jom...@me.com > <mailto:jom...@me.com>> wrote: > Hey everyone, > > Is there any documentation on how to use DistributedCacheServer ? Currently > from what I see this is single point of failure or does it really sync the > data between nodes ? > > I want to have something similar to zookeeper state but not in zookeeper > because it needs to be available between processors. My rough problem: > > > Flow : > > * Start the flow and store a state (Similar to the QueryTable, which uses > zookeeper to store the max row) > * do some processing > * update the state > > > This needs to be reachable between servers of course. What I tested the > DistributedMapCacheClientService needs a server to connect which I point to > localhost. But if the entry that I need is on another server how do they sync > the data ? > > Thx
