I followed this tutorial: Getting started with MiNiFi
Therefore, there is a input port in my root process group and a process group for MiNiFi. The MiNiFi Process Group, contains a Tail File Processor, a Remote Process Groupand a Connection between them.
Inside the MiNiFi Process Group I'm saving the Template, after this I download it from the Templates List and run the command:
minifi-toolkit-0.5.0\bin\config.bat transform minifi\MiNiFi2.xml minifi\minifi_config\config.yml
But it fails and says:
The JAVA_HOME environment variable is not defined correctly.
Instead the PATH will be used to find the java executable.
There are validation errors with the template, still outputting YAML but it will need to be edited.
Connection with id 10de7342-41ef-37a5-0000-000000000000 has invalid destination id 9b02eb45-3c2d-3fb4-91cf-880d5038c0cd
I re-created everything and the issue still exists.
This is my Template:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<template encoding-version="1.3">
<description></description>
<groupId>db4ce9c5-016e-1000-bce2-b531930a6edd</groupId>
<name>MiNiFi</name>
<snippet>
<connections>
<id>10de7342-41ef-37a5-0000-000000000000</id>
<parentGroupId>e544a343-e2f0-3112-0000-000000000000</parentGroupId>
<backPressureDataSizeThreshold>1 GB</backPressureDataSizeThreshold>
<backPressureObjectThreshold>10000</backPressureObjectThreshold>
<destination>
<groupId>1e18bdb9-7df3-3fba-0000-000000000000</groupId>
<id>9b02eb45-3c2d-3fb4-91cf-880d5038c0cd</id>
<type>REMOTE_INPUT_PORT</type>
</destination>
<flowFileExpiration>0 sec</flowFileExpiration>
<labelIndex>1</labelIndex>
<loadBalanceCompression>DO_NOT_COMPRESS</loadBalanceCompression>
<loadBalancePartitionAttribute></loadBalancePartitionAttribute>
<loadBalanceStatus>LOAD_BALANCE_NOT_CONFIGURED</loadBalanceStatus>
<loadBalanceStrategy>DO_NOT_LOAD_BALANCE</loadBalanceStrategy>
<name></name>
<selectedRelationships>success</selectedRelationships>
<source>
<groupId>e544a343-e2f0-3112-0000-000000000000</groupId>
<id>246f7d78-f8e1-3c88-0000-000000000000</id>
<type>PROCESSOR</type>
</source>
<zIndex>0</zIndex>
</connections>
<processors>
<id>246f7d78-f8e1-3c88-0000-000000000000</id>
<parentGroupId>e544a343-e2f0-3112-0000-000000000000</parentGroupId>
<position>
<x>0.0</x>
<y>16.0</y>
</position>
<bundle>
<artifact>nifi-standard-nar</artifact>
<group>org.apache.nifi</group>
<version>1.10.0</version>
</bundle>
<config>
<bulletinLevel>WARN</bulletinLevel>
<comments></comments>
<concurrentlySchedulableTaskCount>1</concurrentlySchedulableTaskCount>
<descriptors>
<entry>
<key>tail-mode</key>
<value>
<name>tail-mode</name>
</value>
</entry>
<entry>
<key>File to Tail</key>
<value>
<name>File to Tail</name>
</value>
</entry>
<entry>
<key>Rolling Filename Pattern</key>
<value>
<name>Rolling Filename Pattern</name>
</value>
</entry>
<entry>
<key>tail-base-directory</key>
<value>
<name>tail-base-directory</name>
</value>
</entry>
<entry>
<key>Initial Start Position</key>
<value>
<name>Initial Start Position</name>
</value>
</entry>
<entry>
<key>File Location</key>
<value>
<name>File Location</name>
</value>
</entry>
<entry>
<key>tailfile-recursive-lookup</key>
<value>
<name>tailfile-recursive-lookup</name>
</value>
</entry>
<entry>
<key>tailfile-lookup-frequency</key>
<value>
<name>tailfile-lookup-frequency</name>
</value>
</entry>
<entry>
<key>tailfile-maximum-age</key>
<value>
<name>tailfile-maximum-age</name>
</value>
</entry>
</descriptors>
<executionNode>ALL</executionNode>
<lossTolerant>false</lossTolerant>
<penaltyDuration>30 sec</penaltyDuration>
<properties>
<entry>
<key>tail-mode</key>
<value>Single file</value>
</entry>
<entry>
<key>File to Tail</key>
<value>/opt/minifi/minifi_test_dir</value>
</entry>
<entry>
<key>Rolling Filename Pattern</key>
</entry>
<entry>
<key>tail-base-directory</key>
</entry>
<entry>
<key>Initial Start Position</key>
<value>Beginning of File</value>
</entry>
<entry>
<key>File Location</key>
<value>Local</value>
</entry>
<entry>
<key>tailfile-recursive-lookup</key>
<value>false</value>
</entry>
<entry>
<key>tailfile-lookup-frequency</key>
<value>10 minutes</value>
</entry>
<entry>
<key>tailfile-maximum-age</key>
<value>24 hours</value>
</entry>
</properties>
<runDurationMillis>0</runDurationMillis>
<schedulingPeriod>0 sec</schedulingPeriod>
<schedulingStrategy>TIMER_DRIVEN</schedulingStrategy>
<yieldDuration>1 sec</yieldDuration>
</config>
<executionNodeRestricted>false</executionNodeRestricted>
<name>TailFile</name>
<relationships>
<autoTerminate>false</autoTerminate>
<name>success</name>
</relationships>
<state>STOPPED</state>
<style/>
<type>org.apache.nifi.processors.standard.TailFile</type>
</processors>
<remoteProcessGroups>
<id>1e18bdb9-7df3-3fba-0000-000000000000</id>
<parentGroupId>e544a343-e2f0-3112-0000-000000000000</parentGroupId>
<position>
<x>696.0</x>
<y>0.0</y>
</position>
<comments></comments>
<communicationsTimeout>30 sec</communicationsTimeout>
<contents>
<inputPorts>
<batchSettings/>
<comments></comments>
<concurrentlySchedulableTaskCount>1</concurrentlySchedulableTaskCount>
<connected>true</connected>
<exists>true</exists>
<groupId>db4d2e20-016e-1000-d3c7-73a67e2b1d67</groupId>
<id>9b02eb45-3c2d-3fb4-91cf-880d5038c0cd</id>
<name>input_minifi</name>
<targetId>dadd7f29-016e-1000-3c91-89495c813674</targetId>
<targetRunning>false</targetRunning>
<transmitting>false</transmitting>
<useCompression>false</useCompression>
</inputPorts>
</contents>
<proxyHost></proxyHost>
<proxyUser></proxyUser>
<targetUri>http://nifi-server:8080/nifi</targetUri>
<targetUris>http://nifi-server:8080/nifi</targetUris>
<transportProtocol>RAW</transportProtocol>
<yieldDuration>10 sec</yieldDuration>
</remoteProcessGroups>
</snippet>
<timestamp>12/06/2019 13:04:03 UTC</timestamp>
</template>
This is the toolkit result:
MiNiFi Config Version: 3
Flow Controller:
name: MiNiFi
comment: ''
Core Properties:
flow controller graceful shutdown period: 10 sec
flow service write delay interval: 500 ms
administrative yield duration: 30 sec
bored yield duration: 10 millis
max concurrent threads: 1
variable registry properties: ''
FlowFile Repository:
partitions: 256
checkpoint interval: 2 mins
always sync: false
Swap:
threshold: 20000
in period: 5 sec
in threads: 1
out period: 5 sec
out threads: 4
Content Repository:
content claim max appendable size: 10 MB
content claim max flow files: 100
always sync: false
Provenance Repository:
provenance rollover time: 1 min
implementation: org.apache.nifi.provenance.MiNiFiPersistentProvenanceRepository
Component Status Repository:
buffer size: 1440
snapshot frequency: 1 min
Security Properties:
keystore: ''
keystore type: ''
keystore password: ''
key password: ''
truststore: ''
truststore type: ''
truststore password: ''
ssl protocol: ''
Sensitive Props:
key:
algorithm: PBEWITHMD5AND256BITAES-CBC-OPENSSL
provider: BC
Processors:
- id: 246f7d78-f8e1-3c88-0000-000000000000
name: TailFile
class: org.apache.nifi.processors.standard.TailFile
max concurrent tasks: 1
scheduling strategy: TIMER_DRIVEN
scheduling period: 0 sec
penalization period: 30 sec
yield period: 1 sec
run duration nanos: 0
auto-terminated relationships list: []
Properties:
File Location: Local
File to Tail: /opt/minifi/minifi_test_dir
Initial Start Position: Beginning of File
Rolling Filename Pattern:
tail-base-directory:
tail-mode: Single file
tailfile-lookup-frequency: 10 minutes
tailfile-maximum-age: 24 hours
tailfile-recursive-lookup: 'false'
Controller Services: []
Process Groups: []
Input Ports: []
Output Ports: []
Funnels: []
Connections:
- id: 10de7342-41ef-37a5-0000-000000000000
name: TailFile/success/9b02eb45-3c2d-3fb4-91cf-880d5038c0cd
source id: 246f7d78-f8e1-3c88-0000-000000000000
source relationship names:
- success
destination id: 9b02eb45-3c2d-3fb4-91cf-880d5038c0cd
max work queue size: 10000
max work queue data size: 1 GB
flowfile expiration: 0 sec
queue prioritizer class: ''
Remote Process Groups:
- id: 1e18bdb9-7df3-3fba-0000-000000000000
name: ''
url: http://nifi-server:8080/nifi
comment: ''
timeout: 30 sec
yield period: 10 sec
transport protocol: RAW
proxy host: ''
proxy port: ''
proxy user: ''
proxy password: ''
local network interface: ''
Input Ports:
- id: dadd7f29-016e-1000-3c91-89495c813674
name: input_minifi
comment: ''
max concurrent tasks: 1
use compression: false
Output Ports: []
NiFi Properties Overrides: {}
Edit:
It appears there is a bug in the toolkit (MINIFI-521 reported by @seb) where the targetId is used in the template as the input port id but the connection id isn't being mapped appropriately.
Previous:
If I remember correctly, the toolkit expects the template it processes to be entirely self-contained.
The template is referencing the input port from the root process group.
This will cause it to be missing when only the template is exported and converted for use with MiNiFi.
I'd suggest moving your input port down into the process group that you're going to create a template of.