question Re: Apache NiFi: Processor configuration url issue in Support Questions

Apache NiFi: Processor configuration url issue

ClouderaUser777 — Fri, 20 Dec 2019 20:54:50 GMT

I've installed Apache NiFi through Apache Ambari on my HDP: Stack and Versions->Stack->Install... All configuration while installation I left to defaults. Installation was successful, however I was not able to access "http://sandbox-hdp.hortonworks.com:9090/nifi" out of box. So I added:

server {
listen 9090;
server_name sandbox-hdp.hortonworks.com;
location / {
proxy_pass http://sandbox-hdp:9090;
}
}

to my "HDP_3.0.1_docker-deploy-scripts_18120587fc7fb\sandbox\proxy\conf.d\http-hdp.conf" file and it started working properly. However now I have a problem when trying to change process configuration: when I click on Configure in process drop-down, I'm redirected to page with text "Please ensure the application is running and check the logs for any errors." In network I can see failed request to "http://sandbox-hdp:9090/nifi-api/processors/23ae900c-016f-1000-ffff-ffff8d289282". Any ideas how it can be fixed?

Thanks

Re: Apache NiFi: Processor configuration url issue

DennisJaheruddi — Tue, 24 Dec 2019 11:15:08 GMT

Please check carefully the documentation you are following. I don't think you are expected to change the deployment configuration, perhaps you need to add something on your local machine. (e.g. in /etc/hosts)

Re: Apache NiFi: Processor configuration url issue

ClouderaUser777 — Thu, 26 Dec 2019 15:03:51 GMT

It's part of my "c:\Windows\System32\drivers\etc\hosts" file. I followed "https://www.cloudera.com/tutorials/learning-the-ropes-of-the-hdp-sandbox.html#admin-password-reset" documentation:

127.0.0.1 localhost sandbox-hdp.hortonworks.com sandbox-hdf.hortonworks.com
# Added by Docker Desktop
10.224.206.135 host.docker.internal
10.224.206.135 gateway.docker.internal
# To allow the same kube context to work on the host and the container:
127.0.0.1 kubernetes.docker.internal
# End of section

Re: Apache NiFi: Processor configuration url issue

ClouderaUser777 — Mon, 30 Dec 2019 15:30:28 GMT

I found solution to my problem:

Change is required to "HDP_3.0.1_docker-deploy-scripts_18120587fc7fb\assets\generate-proxy-deploy-script.sh" file. I moved:

[9090]=9090
[9091]=9091

from section:

tcpPortsHDF=(
[2202]=22
[2182]=2181
[4557]=4557
....
)

to section:

tcpPortsHDP=(
[12049]=2049
[2201]=22
[2222]=22
[1100]=1100

....

[9090]=9090
[9091]=9091

...

)

Then I ran again "HDP_3.0.1_docker-deploy-scripts_18120587fc7fb\docker-deploy-hdp30.sh". Now it works.