I've used nipyapi package on Windows 10 (64-bit) without any issues. It's a great package for working with Apache NiFi. However, the installation process can be tricky sometimes. Did you try installing the package using Conda? That's usually the easiest way to install packages with dependencies on Windows. If you're still having trouble with the installation, you could try looking for alternative packages. PyNiFi and NiPyApi are similar packages that you could check out. They might work better for your needs. Also, check out reddit windows keys for some more cool options and tips. ... View more

@toninghaywi    The exception is implying that your NiFi is trying to connect to Zookeeper server for state management and your zookeeper is using TLS; however, your NiFi has not been configured to be able to establish that secure connection needed to your zookeeper. Apache NiFi support for TLS enabled zookeeper server was added in Apache NiFi version 1.13. https://nifi.apache.org/docs/nifi-docs/html/administration-guide.html#zk_tls_client https://nifi.apache.org/docs/nifi-docs/html/administration-guide.html#embedded-zookeeper-with-tls   The Apache NiFi jira related to this feature improvement are below: https://issues.apache.org/jira/browse/NIFI-7203 https://issues.apache.org/jira/browse/NIFI-7115 https://issues.apache.org/jira/browse/NIFI-7819  <-- This one is specific to state management If you found this response assisted with your query, please take a moment to login and click on "Accept as Solution" below this post. Thank you, Matt     ... View more

@ashinde, thank you very much for the response. Makes sense why that setting is not working for us on 1.11.4. I will have to check when we can be on 1.12 version to use some of the additional features that'd help us with the troubleshooting.   Point taken about finding the actual RC for the heartbeat delay. CPU, and Memory (GC, heap usage) have not been an issue so far during our investigations. We are not really running any high volume processing here, and we are on a cluster with 3 nodes each with 24 cores, and 22 GB heap allocation. Network is one thing we need to check further, but so far basic analysis does not show any delay b/w the nodes or any packet loss.   For now we have stopped the frequent node disconnections due to missing heartbeats by increasing nifi.cluster.protocol.heartbeat.interval=30 sec, while we investigate the issue further.   Best, MT13 ... View more

@Chakkara, if the solution provided by @ashinde resolved your issue, can you please mark it as the solution?  It will make it easier for others to find the answer in the future.   ... View more

@Law  serveraddress is hostname of host where nifi service is installed. E.g you have installed it on samplehost.com then it would be "http://samplehost.com:8080/nifi" .If you enable SSL for nifi later then the URL will change to "https://samplehost.com:<secure_port>/nifi". Also you should check that host and port are reachable from your browser to access NiFi UI.       If this answer resolves your issue or allows you to move forward, please choose to ACCEPT this solution and close this topic. If you have further dialogue on this topic please comment here.   -Akash ... View more

Thanks for your help @ashinde ! I see I was looking at the wrong section of rest-api. OK I have to go on nifi rest-api section flow/history. I will have a look on the nifi.properties but because my report is running every night I suppose the purging doesn't matter.   Second option you mentioned concerning when a flow was brought to registry doesn't interest... at the moment. ... View more

Hello, @Bender  Yes, I have got the link [2] from your reply Thank you very much! Paul ... View more