Data In Motion: cli

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IoT Series: MiNiFi Agent on Raspberry Pi 4 with Enviro+ Hat For Environmental Monitoring and Analytics

Summary: Our powerful edge device streams sensor readings for environmental readings while also performing edge analytics with deep learning libraries and enhanced edge VPU. We can perform complex running calculations on sensor data locally on the box before making potentially expense network calls. We can also decide when to send out data based on heuristics, machine learning or simple if-then logic.

Use Case: Monitor Environment. Act Local, Report Global.

Stack: FLANK

Category: AI, IoT, Edge2AI, Real-Time Streaming, Sensors, Cameras, Telemetry.

Hardware: Intel Movidius NCC 2 VPU (Neural Computing), Pimoroni Enviro Plus pHAT, Raspberry Pi 4 (4GB Edition).

Software: Python 3 + Java + MiNiFi Agents + Cloudera Edge Flow Manager (EFM/CEM) + Apache NiFi. Using Mm... FLaNK Stack.

Keywords: Edge2AI, CV, AI, Deep Learning, Cloudera, NiFi, Raspberry Pi, Deep Learning, Sensors, IoT, IIoT, Devices, Java, Agents, FLaNK Stack, VPU, Movidius.

Open Source Assets: https://github.com/tspannhw/minifi-enviroplus

I am running a Python script that streams sensor data continuously to MQTT to be picked up by MiNiFi agents or NiFi. For development I am just running my Python script with a shell script and nohup.

enviro.sh
python3 /opt/demo/enviro.py

nohup ./enviro.sh &

Example Enviro Plus pHAT Sensor Data

{
"uuid" : "rpi4_uuid_xki_20191220215721",
"ipaddress" : "192.168.1.243",
"host" : "rp4",
"host_name" : "rp4",
"macaddress" : "dc:a6:32:03:a6:e9",
"systemtime" : "12/20/2019 16:57:21",
"cpu" : 0.0,
"diskusage" : "46958.1 MB",
"memory" : 6.3,
"id" : "20191220215721_938f2137-5adb-4c22-867d-cdfbce6431a8",
"temperature" : "33.590520852237226",
"pressure" : "1032.0433707836428",
"humidity" : "7.793797584651376",
"lux" : "0.0",
"proximity" : "0",
"gas" : "Oxidising: 3747.82 Ohms\nReducing: 479652.17 Ohms\nNH3: 60888.05 Ohms"

}

We are also running a standard MiNiFi Java Agent 0.6 that is running a Python application to do sensors, edge AI with Intel's OpenVino and some other analytics.

test.sh

#!/bin/bash

DATE=$(date +"%Y-%m-%d_%H%M")
source /opt/intel/openvino/bin/setupvars.sh
fswebcam -q -r 1280x720 --no-banner /opt/demo/images/$DATE.jpg
python3 -W ignore /opt/intel/openvino/build/test.py /opt/demo/images/$DATE.jpg 2>/dev/null

test.py

https://github.com/tspannhw/minifi-enviroplus/blob/master/test.py

Example OpenVino Data

{"host": "rp4", "cputemp": "67", "ipaddress": "192.168.1.243", "endtime": "1577194586.66", "runtime": "0.00", "systemtime": "12/24/2019 08:36:26", "starttime": "12/24/2019 08:36:26", "diskfree": "46889.0", "memory": "15.1", "uuid": "20191224133626_55157415-1354-4137-8472-424779645fbe", "image_filename": "20191224133626_9317880e-ee87-485a-8627-c7088df734fc.jpg"}

In our flow I convert to Apache Avro, as you can see Avro schema is embedded.

The flow is very simple, consume MQTT messages from our broker on the topic we are pushing messages to from our field sensors. We also ingest MiNiFi events through standard Apache NiFi HTTP(s) Site-to-Site (S2S). We route images to our image processor and sensor data right to Kudu tables.

Now that the data is stored to Apache Kudu we can do our analytics.

Easy to Run an MQTT Broker

References:

Demo Info:

https://subscription.packtpub.com/book/application_development/9781787287815/1/ch01lvl1sec12/installing-a-mosquitto-broker-on-macos

Run Mosquitto MQTT on Local Machine (RPI, Mac, Win10, ...)

On OSX, brew install mosquitto

/usr/local/etc/mosquitto/mosquitto.conf

To have launchd start mosquitto now and restart at login:
brew services start mosquitto

Or, if you don't want/need a background service you can just run:
mosquitto -c /usr/local/etc/mosquitto/mosquitto.conf

For Python, we need pip3 install paho-mqtt.

Run Sensors on Device that pushes to MQTT

Python pushes continuous stream of sensor data to MQTT

MiNiFi Agent Reads Broker

Send to Kafka and/or NiFi

Example Image Grabbed From Webcam in Dark Office (It's Christmas Eve!)

When ready we can push to a CDP Data Warehouse in AWS.

With CDP, it's very easy to have a data environment in many clouds to store my live sensor data.

I can now use this data in Kudu tables from Cloudera Data Science Workbench for real Data Science, machine learning and insights.

What do we do with all of this data? Check in soon for real-time analytics and dash boarding.

NiFi Toolkit - CLI - For NiFi 1.10

Along with the updated Apache NiFi server, the NiFi 1.10 release also updated the Command Line Interface with some updated and new features. Let's check them out.

Cool Tools

S2S.sh - send data to Apache NiFi via the CLI.

Formatted as such:
[{"attributes":{"key":"value"},"data":"stuff"}]

Examples

registry import-flow-version

Get Into Interactive Mode

./cli.sh

Get Parameter Contexts (simple or json format)

nifi list-param-contexts -u http://localhost:8080 -ot simple

Export Parameter Context

nifi export-param-context -u http://localhost:8080 -verbose --paramContextId 8067d863-016e-1000-f0f7-265210d3e7dc

Get Services

nifi get-services -u http://localhost:8080

NiFi Dump

../bin/nifi.sh dump filedump.txt

NiFi home: /Users/tspann/Documents/nifi-1.10.0

Bootstrap Config File: /Users/tspann/Documents/nifi-1.10.0/conf/bootstrap.conf

2019-11-18 17:08:04,921 INFO [main] org.apache.nifi.bootstrap.Command Successfully wrote thread dump to /Users/tspann/Documents/nifi-1.10.0/filedump.txt

NiFi Diagnostics

../bin/nifi.sh diagnostics diag.txt

Java home:
NiFi home: /Users/tspann/Documents/nifi-1.10.0

Bootstrap Config File: /Users/tspann/Documents/nifi-1.10.0/conf/bootstrap.conf

2019-11-18 17:11:09,844 INFO [main] org.apache.nifi.bootstrap.Command Successfully wrote diagnostics information to /Users/tspann/Documents/nifi-1.10.0/diag.txt

2019-11-18 17:11:10,041 INFO [main] org.apache.nifi.bootstrap.Command gopherProxySet = false
2019-11-18 17:11:10,042 INFO [main] org.apache.nifi.bootstrap.Command awt.toolkit = sun.lwawt.macosx.LWCToolkit
2019-11-18 17:11:10,042 INFO [main] org.apache.nifi.bootstrap.Command java.specification.version = 11
2019-11-18 17:11:10,042 INFO [main] org.apache.nifi.bootstrap.Command sun.cpu.isalist =
2019-11-18 17:11:10,042 INFO [main] org.apache.nifi.bootstrap.Command sun.jnu.encoding = UTF-8
2019-11-18 17:11:10,042 INFO [main] org.apache.nifi.bootstrap.Command java.class.path = /Users/tspann/Documents/nifi-1.10.0/./conf:/Users/tspann/Documents/nifi-1.10.0/./lib/jetty-schemas-3.1.jar:/Users/tspann/Documents/nifi-1.10.0/./lib/slf4j-api-1.7.26.jar:/Users/tspann/Documents/nifi-1.10.0/./lib/stanford-english-corenlp-2018-02-27-models.jar:/Users/tspann/Documents/nifi-1.10.0/./lib/jcl-over-slf4j-1.7.26.jar:/Users/tspann/Documents/nifi-1.10.0/./lib/javax.servlet-api-3.1.0.jar:/Users/tspann/Documents/nifi-1.10.0/./lib/logback-classic-1.2.3.jar:/Users/tspann/Documents/nifi-1.10.0/./lib/nifi-properties-1.10.0.jar:/Users/tspann/Documents/nifi-1.10.0/./lib/nifi-nar-utils-1.10.0.jar:/Users/tspann/Documents/nifi-1.10.0/./lib/nifi-api-1.10.0.jar:/Users/tspann/Documents/nifi-1.10.0/./lib/nifi-framework-api-1.10.0.jar:/Users/tspann/Documents/nifi-1.10.0/./lib/jul-to-slf4j-1.7.26.jar:/Users/tspann/Documents/nifi-1.10.0/./lib/logback-core-1.2.3.jar:/Users/tspann/Documents/nifi-1.10.0/./lib/log4j-over-slf4j-1.7.26.jar:/Users/tspann/Documents/nifi-1.10.0/./lib/nifi-runtime-1.10.0.jar:/Users/tspann/Documents/nifi-1.10.0/./lib/java11/javax.annotation-api-1.3.2.jar:/Users/tspann/Documents/nifi-1.10.0/./lib/java11/jaxb-core-2.3.0.jar:/Users/tspann/Documents/nifi-1.10.0/./lib/java11/javax.activation-api-1.2.0.jar:/Users/tspann/Documents/nifi-1.10.0/./lib/java11/jaxb-impl-2.3.0.jar:/Users/tspann/Documents/nifi-1.10.0/./lib/java11/jaxb-api-2.3.0.jar
2019-11-18 17:11:10,042 INFO [main] org.apache.nifi.bootstrap.Command java.vm.vendor = Amazon.com Inc.
2019-11-18 17:11:10,042 INFO [main] org.apache.nifi.bootstrap.Command javax.security.auth.useSubjectCredsOnly = true
2019-11-18 17:11:10,043 INFO [main] org.apache.nifi.bootstrap.Command sun.arch.data.model = 64
2019-11-18 17:11:10,043 INFO [main] org.apache.nifi.bootstrap.Command sun.font.fontmanager = sun.font.CFontManager
2019-11-18 17:11:10,043 INFO [main] org.apache.nifi.bootstrap.Command java.vendor.url = https://aws.amazon.com/corretto/
2019-11-18 17:11:10,043 INFO [main] org.apache.nifi.bootstrap.Command user.timezone = America/New_York
2019-11-18 17:11:10,043 INFO [main] org.apache.nifi.bootstrap.Command org.apache.nifi.bootstrap.config.log.dir = /Users/tspann/Documents/nifi-1.10.0/logs
2019-11-18 17:11:10,043 INFO [main] org.apache.nifi.bootstrap.Command os.name = Mac OS X
2019-11-18 17:11:10,043 INFO [main] org.apache.nifi.bootstrap.Command java.vm.specification.version = 11
2019-11-18 17:11:10,043 INFO [main] org.apache.nifi.bootstrap.Command nifi.properties.file.path = /Users/tspann/Documents/nifi-1.10.0/./conf/nifi.properties
2019-11-18 17:11:10,043 INFO [main] org.apache.nifi.bootstrap.Command sun.java.launcher = SUN_STANDARD
2019-11-18 17:11:10,043 INFO [main] org.apache.nifi.bootstrap.Command user.country = US
2019-11-18 17:11:10,043 INFO [main] org.apache.nifi.bootstrap.Command sun.boot.library.path = /Library/Java/JavaVirtualMachines/amazon-corretto-11.jdk/Contents/Home/lib
2019-11-18 17:11:10,043 INFO [main] org.apache.nifi.bootstrap.Command app = NiFi
2019-11-18 17:11:10,043 INFO [main] org.apache.nifi.bootstrap.Command sun.java.command = org.apache.nifi.NiFi
2019-11-18 17:11:10,043 INFO [main] org.apache.nifi.bootstrap.Command jdk.debug = release
2019-11-18 17:11:10,043 INFO [main] org.apache.nifi.bootstrap.Command org.apache.jasper.compiler.disablejsr199 = true
2019-11-18 17:11:10,043 INFO [main] org.apache.nifi.bootstrap.Command sun.cpu.endian = little
2019-11-18 17:11:10,043 INFO [main] org.apache.nifi.bootstrap.Command user.home = /Users/tspann
2019-11-18 17:11:10,044 INFO [main] org.apache.nifi.bootstrap.Command user.language = en
2019-11-18 17:11:10,044 INFO [main] org.apache.nifi.bootstrap.Command java.specification.vendor = Oracle Corporation
2019-11-18 17:11:10,044 INFO [main] org.apache.nifi.bootstrap.Command java.version.date = 2019-07-16
2019-11-18 17:11:10,044 INFO [main] org.apache.nifi.bootstrap.Command java.home = /Library/Java/JavaVirtualMachines/amazon-corretto-11.jdk/Contents/Home
2019-11-18 17:11:10,044 INFO [main] org.apache.nifi.bootstrap.Command file.separator = /
2019-11-18 17:11:10,044 INFO [main] org.apache.nifi.bootstrap.Command java.vm.compressedOopsMode = Zero based
2019-11-18 17:11:10,044 INFO [main] org.apache.nifi.bootstrap.Command line.separator =

2019-11-18 17:11:10,044 INFO [main] org.apache.nifi.bootstrap.Command java.specification.name = Java Platform API Specification
2019-11-18 17:11:10,044 INFO [main] org.apache.nifi.bootstrap.Command java.vm.specification.vendor = Oracle Corporation
2019-11-18 17:11:10,050 INFO [main] org.apache.nifi.bootstrap.Command javax.xml.xpath.XPathFactory:http://saxon.sf.net/jaxp/xpath/om = net.sf.saxon.xpath.XPathFactoryImpl
2019-11-18 17:11:10,050 INFO [main] org.apache.nifi.bootstrap.Command java.awt.graphicsenv = sun.awt.CGraphicsEnvironment
2019-11-18 17:11:10,051 INFO [main] org.apache.nifi.bootstrap.Command java.awt.headless = true
2019-11-18 17:11:10,051 INFO [main] org.apache.nifi.bootstrap.Command java.protocol.handler.pkgs = sun.net.www.protocol
2019-11-18 17:11:10,051 INFO [main] org.apache.nifi.bootstrap.Command sun.management.compiler = HotSpot 64-Bit Tiered Compilers
2019-11-18 17:11:10,051 INFO [main] org.apache.nifi.bootstrap.Command java.runtime.version = 11.0.4+11-LTS
2019-11-18 17:11:10,051 INFO [main] org.apache.nifi.bootstrap.Command user.name = tspann
2019-11-18 17:11:10,051 INFO [main] org.apache.nifi.bootstrap.Command java.net.preferIPv4Stack = true
2019-11-18 17:11:10,051 INFO [main] org.apache.nifi.bootstrap.Command path.separator = :
2019-11-18 17:11:10,051 INFO [main] org.apache.nifi.bootstrap.Command java.security.egd = file:/dev/urandom
2019-11-18 17:11:10,051 INFO [main] org.apache.nifi.bootstrap.Command org.jruby.embed.localvariable.behavior = persistent
2019-11-18 17:11:10,051 INFO [main] org.apache.nifi.bootstrap.Command os.version = 10.14.6
2019-11-18 17:11:10,051 INFO [main] org.apache.nifi.bootstrap.Command java.runtime.name = OpenJDK Runtime Environment
2019-11-18 17:11:10,051 INFO [main] org.apache.nifi.bootstrap.Command file.encoding = UTF-8
2019-11-18 17:11:10,052 INFO [main] org.apache.nifi.bootstrap.Command sun.net.http.allowRestrictedHeaders = true
2019-11-18 17:11:10,052 INFO [main] org.apache.nifi.bootstrap.Command jnidispatch.path = /var/folders/t5/xz5j50wx2rl8kd3021lkbn800000gn/T/jna--864347536/jna3349001211756681540.tmp
2019-11-18 17:11:10,052 INFO [main] org.apache.nifi.bootstrap.Command java.vm.name = OpenJDK 64-Bit Server VM
2019-11-18 17:11:10,052 INFO [main] org.apache.nifi.bootstrap.Command jna.platform.library.path = /usr/lib:/usr/lib
2019-11-18 17:11:10,052 INFO [main] org.apache.nifi.bootstrap.Command java.vendor.version = Corretto-11.0.4.11.1
2019-11-18 17:11:10,052 INFO [main] org.apache.nifi.bootstrap.Command jna.loaded = true
2019-11-18 17:11:10,052 INFO [main] org.apache.nifi.bootstrap.Command java.vendor.url.bug = https://github.com/corretto/corretto-11/issues/
2019-11-18 17:11:10,052 INFO [main] org.apache.nifi.bootstrap.Command jetty.git.hash = afcf563148970e98786327af5e07c261fda175d3
2019-11-18 17:11:10,052 INFO [main] org.apache.nifi.bootstrap.Command java.io.tmpdir = /var/folders/t5/xz5j50wx2rl8kd3021lkbn800000gn/T/
2019-11-18 17:11:10,052 INFO [main] org.apache.nifi.bootstrap.Command java.version = 11.0.4
2019-11-18 17:11:10,052 INFO [main] org.apache.nifi.bootstrap.Command user.dir = /Users/tspann/Documents/nifi-1.10.0
2019-11-18 17:11:10,052 INFO [main] org.apache.nifi.bootstrap.Command os.arch = x86_64
2019-11-18 17:11:10,052 INFO [main] org.apache.nifi.bootstrap.Command nifi.bootstrap.listen.port = 55105
2019-11-18 17:11:10,052 INFO [main] org.apache.nifi.bootstrap.Command java.vm.specification.name = Java Virtual Machine Specification
2019-11-18 17:11:10,052 INFO [main] org.apache.nifi.bootstrap.Command java.awt.printerjob = sun.lwawt.macosx.CPrinterJob
2019-11-18 17:11:10,053 INFO [main] org.apache.nifi.bootstrap.Command sun.os.patch.level = unknown
2019-11-18 17:11:10,053 INFO [main] org.apache.nifi.bootstrap.Command bridj.quiet = true
2019-11-18 17:11:10,053 INFO [main] org.apache.nifi.bootstrap.Command java.library.path = /Users/tspann/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.
2019-11-18 17:11:10,053 INFO [main] org.apache.nifi.bootstrap.Command java.vendor = Amazon.com Inc.
2019-11-18 17:11:10,053 INFO [main] org.apache.nifi.bootstrap.Command java.vm.info = mixed mode
2019-11-18 17:11:10,053 INFO [main] org.apache.nifi.bootstrap.Command java.vm.version = 11.0.4+11-LTS
2019-11-18 17:11:10,053 INFO [main] org.apache.nifi.bootstrap.Command sun.io.unicode.encoding = UnicodeBig
2019-11-18 17:11:10,053 INFO [main] org.apache.nifi.bootstrap.Command java.class.version = 55.0

Resources

https://nifi.apache.org/docs/nifi-docs/html/toolkit-guide.html#nifi_CLI
https://github.com/aperepel/nifi-workshop-2019
https://nifi.apache.org/docs/nifi-docs/html/toolkit-guide.html#file-manager