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From Joe Witt <>
Subject Re: NiFi cluster with DistributedMapCacheServer/Client
Date Fri, 13 Apr 2018 19:24:51 GMT

You have it right about the proper solution path..  I think we have a
Redis one in there now too that might be interesting (not in 1.3.0
perhaps but..).

We offered a simple out of the box one early and to ensure the
interfaces are right.  Since then the community has popped up some
real/stronger implementations like you're mentioning.


On Fri, Apr 13, 2018 at 7:14 PM, James Srinivasan
<> wrote:
> Hi all,
> Is there a recommended way to set up a
> DistributedMapCacheServer/Client on a cluster, ideally with some
> amount of HA (NiFi 1.3.0)? I'm using a shared persistence directory,
> and when adding and enabling the controller it seems to start on my
> primary node (but not the other two - status keeps saying "enabling"
> rather than "enabled"). Adding the DistributedMapCacheClientService is
> harder, because I have to specify the host it runs on. Setting it to
> the current primary node works, but presumably won't fail over?
> I guess the proper solution is to use the HBase versions (or even
> implement my own Accumulo one for our cluster)
> Thanks very much,
> James

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