Re: use DistributedMapCacheClientService in NIFI cluster

Thanks Michal, I only need to keep very few config data, so zookeeper should be sufficient for me. 2017-05-26 15:12 GMT+08:00 Michal Klempa : > Hi Ben, > according to my experience, I would recommend not to use > DistributedMapCache at all. > First of all - its not load

Re: use DistributedMapCacheClientService in NIFI cluster

Hi Ben, according to my experience, I would recommend not to use DistributedMapCache at all. First of all - its not load balanced / HA and then, it is just a HashMap implementation in Java, talking to clients using simple TCP (=it consumes RAM from NiFi's Java heap space) I guess its in NiFi as a

Re: use DistributedMapCacheClientService in NIFI cluster

Thanks Joe, actually what I want to achieve is one of my processors need to write some config data to be kept in cluster so that other processors would be able to easily get the config data from the cluster. I've considered using the default NIFI state map to do it, but as I know it could only

Re: use DistributedMapCacheClientService in NIFI cluster

So the client would be on each of nodea, nodeb, and nodec. The server would be on nodea, nodeb, nodec. Each client would be configured to talk to any one of the three servers nodea, nodeb, or nodec. It does not offer HA. For more complete behavior it is a good idea to have a client/service

Re: use DistributedMapCacheClientService in NIFI cluster

Thanks Joe, so I need to setup the DistributedMapCacheServer on all nodes, do you mean all DistributedMapCacheClientService should reference only one of the servers(the same one on the same node)? What if the DistributedMapCacheServer goes down on that node(or the node itself goes down), does it

Re: use DistributedMapCacheClientService in NIFI cluster

Hello You put the DistributedMapCacheServer controller service on as well and then point at it from the client services. So in your three nodes all three will have the server service but on all the clients they'll only point to the server service on one of the nodes. Thanks Joe On Thu, May 25,

use DistributedMapCacheClientService in NIFI cluster

Hi guys, I'm currently using NIFI with 3 nodes as a cluster, when using DistributedMapCacheClientService there's a configuration property called 'Server Hostname'. I've tried with localhost on my local NIFI standlone node and it did work. My question is what should I set inside the NIFI cluster?