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Enable the NiFi API Summary Dashboard

This page describes how to enable the NiFi API Summary Dashboard.

Steps:

  1. Open the nifi.propertiesfile and make the following changes. Take a backup of the existing file if needed.

Bash

nifi.web.request.log.format="%{client}a - %u %t "%r" %s %O "%{Referer}i" "%{User-Agent}i" %{ms}T"

  1. Restart NiFi by running the following command (it might be some UI, if you’re using CDP or HDP).

Bash

nifi.sh restart

  1. Perform the following changes on a SA NiFi cluster.

Bash

bash-4.4# pwd

/opt/nifi-1.23.2/conf

bash-4.4# ../bin/nifi.sh restart

nifi.sh: JAVA_HOME not set; results may vary

Java home:

NiFi home: /opt/nifi-1.23.2

Bootstrap Config File: /opt/nifi-1.23.2/conf/bootstrap.conf

2024-12-15 22:26:08,703 INFO [main] org.apache.nifi.bootstrap.Command Apache NiFi has accepted the Shutdown Command and is shutting down now

2024-12-15 22:26:08,718 INFO [main] org.apache.nifi.bootstrap.Command NiFi PID [1984851] shutdown in progress...

2024-12-15 22:26:10,726 INFO [main] org.apache.nifi.bootstrap.Command NiFi PID [1984851] shutdown in progress...

2024-12-15 22:26:12,736 INFO [main] org.apache.nifi.bootstrap.Command NiFi PID [1984851] shutdown completed

Java home:

NiFi home: /opt/nifi-1.23.2

Bootstrap Config File: /opt/nifi-1.23.2/conf/bootstrap.conf

bash-4.4# ../bin/nifi.sh status

nifi.sh: JAVA_HOME not set; results may vary

Java home:

NiFi home: /opt/nifi-1.23.2

Bootstrap Config File: /opt/nifi-1.23.2/conf/bootstrap.conf

2024-12-15 22:26:27,878 INFO [main] org.apache.nifi.bootstrap.Command Apache NiFi is currently running, listening to Bootstrap on port 44497, PID=3647031

  1. Check nifi-request.log, it must print the time taken to process requests. The following changes need to be made on all nodes of the NiFi cluster.

Bash

"10.100.4.80 - admin [15/Dec/2024:18:12:17 +0000] "GET /nifi-api/flow/cluster/summary HTTP/1.1" 200 105 "-" "curl/7.29.0" 220"

"10.100.4.80 - admin [15/Dec/2024:18:12:47 +0000] "GET /nifi-api/flow/cluster/summary HTTP/1.1" 200 105 "-" "curl/7.29.0" 10"

"10.100.4.81 - - [15/Dec/2024:18:13:10 +0000] "GET / HTTP/1.1" 200 410 "-" "okhttp/4.10.0" 1"

"10.100.4.80 - admin [15/Dec/2024:18:13:17 +0000] "GET /nifi-api/flow/cluster/summary HTTP/1.1" 200 105 "-" "curl/7.29.0" 5"

"10.100.4.80 - admin [15/Dec/2024:18:13:47 +0000] "GET /nifi-api/flow/cluster/summary HTTP/1.1" 200 105 "-" "curl/7.29.0" 6"

  1. Create a file called override.yml in this location: $AcceloHome/work/<cluster_name>.
  2. Add the following section to the file.

Bash

log_locations:

nifi_request:

- path: /var/log/nifi/nifi-request.log

type: DEFAULT

extra_plugins:

eventtail:

- yarn_resourcemanager

- nifi_request

  1. Save your changes and run the following command.

Bash

accelo reconfig cluster

After performing the steps, you can see the following metrics in Pulse.