Apache NiFi - MiNiFi - C++ Build Status

MiNiFi is a child project effort of Apache NiFi. This repository is for a native implementation in C++.

Table of Contents

Features

Apache NiFi - MiNiFi C++ is a complementary data collection approach that supplements the core tenets of NiFi in dataflow management, focusing on the collection of data at the source of its creation. The C++ implementation is an additional implementation to the one in Java with the aim of an even smaller resource footprint.

Specific goals for MiNiFi are comprised of:

  • small and lightweight footprint
  • central management of agents
  • generation of data provenance
  • integration with NiFi for follow-on dataflow management and full chain of custody of information

Perspectives of the role of MiNiFi should be from the perspective of the agent acting immediately at, or directly adjacent to, source sensors, systems, or servers.

Caveats

  • 0.0.1 represents the first release, APIs and interfaces are subject to change
  • Build and usage currently only supports Linux and OS X environments. Providing the needed tooling to support Windows will be established as part of MINIFI-34.
  • Using Site to Site requires the additional manual step of specifying the remote socket. This being autonegotiated through NiFi's REST API is captured in MINIFI-70.
  • The processors currently implemented include:
    • TailFile
    • GetFile
    • GenerateFlowFile
    • LogAttribute
    • ListenSyslog
    • ExecuteProcess
  • Provenance events generation is supported and are persisted using levelDB.

System Requirements

To build

Utilities

  • CMake
    • 2.8 or greater
  • gcc
    • 4.8.4 or greater
  • g++
    • 4.8.4 or greater

Libraries / Development Headers

  • libboost and boost-devel
    • 1.48.0 or greater
  • libxml2 and libxml2-devel
  • leveldb and leveldb-devel

To run

Libraries

  • libxml2

Getting Started

Building

  • From your source checkout, create a directory to perform the build (e.g. build) and cd into that directory.

    # ~/Development/code/apache/nifi-minifi-cpp on git:master
$ mkdir build
# ~/Development/code/apache/nifi-minifi-cpp on git:master
$ cd build

  • Perform a cmake .. to generate the project files

    # ~/Development/code/apache/nifi-minifi-cpp on git:master
$ cmake ..
...
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/apiri/Development/code/apache/nifi-minifi-cpp/build

  • Perform a build

    # ~/Development/code/apache/nifi-minifi-cpp on git:master
$ make
Scanning dependencies of target gmock_main
Scanning dependencies of target gmock
Scanning dependencies of target minifi
Scanning dependencies of target gtest
Scanning dependencies of target yaml-cpp
[  1%] Building CXX object thirdparty/yaml-cpp-yaml-cpp-0.5.3/test/gmock-1.7.0/gtest/CMakeFiles/gtest.dir/src/gtest-all.cc.o
[  3%] Building CXX object thirdparty/yaml-cpp-yaml-cpp-0.5.3/test/gmock-1.7.0/CMakeFiles/gmock.dir/gtest/src/gtest-all.cc.o
[  3%] Building CXX object thirdparty/yaml-cpp-yaml-cpp-0.5.3/test/gmock-1.7.0/CMakeFiles/gmock.dir/src/gmock-all.cc.o
[  6%] Building CXX object thirdparty/yaml-cpp-yaml-cpp-0.5.3/test/gmock-1.7.0/CMakeFiles/gmock_main.dir/gtest/src/gtest-all.cc.o
[  6%] Building CXX object thirdparty/yaml-cpp-yaml-cpp-0.5.3/test/gmock-1.7.0/CMakeFiles/gmock_main.dir/src/gmock-all.cc.o
[  7%] Building CXX object libminifi/CMakeFiles/minifi.dir/src/Configure.cpp.o

...

[ 97%] Linking CXX executable minifi
[ 97%] Built target minifiexe
[ 98%] Building CXX object thirdparty/yaml-cpp-yaml-cpp-0.5.3/test/CMakeFiles/run-tests.dir/node/node_test.cpp.o
[100%] Linking CXX executable run-tests
[100%] Built target run-tests

  • Create a binary assembly located in your build directory with suffix -bin.tar.gz

    ~/Development/code/apache/nifi-minifi-cpp/build
$ make package
Run CPack packaging tool for source...
CPack: Create package using TGZ
CPack: Install projects
CPack: - Install directory: ~/Development/code/apache/nifi-minifi-cpp
CPack: Create package
CPack: - package: ~/Development/code/apache/nifi-minifi-cpp/build/nifi-minifi-cpp-0.1.0-bin.tar.gz generated.

  • Create a source assembly located in your build directory with suffix -source.tar.gz

    ~/Development/code/apache/nifi-minifi-cpp/build
$ make package_source
Run CPack packaging tool for source...
CPack: Create package using TGZ
CPack: Install projects
CPack: - Install directory: ~/Development/code/apache/nifi-minifi-cpp
CPack: Create package
CPack: - package: ~/Development/code/apache/nifi-minifi-cpp/build/nifi-minifi-cpp-0.1.0-source.tar.gz generated.

Cleaning

Remove the build directory created above.

# ~/Development/code/apache/nifi-minifi-cpp on git:master
$ rm -rf ./build

Configuring

The ‘conf’ directory in the root contains a template config.yml document.

This is compatible with the format used with the Java MiNiFi application. Currently, a subset of the configuration is supported. Additional information on the YAML format for the config.yml can be found in the MiNiFi System Administrator Guide.

Additionally, users can utilize the MiNiFi Toolkit Converter to aid in creating a flow configuration from a generated template exported from a NiFi instance. The MiNiFi Toolkit Converter tool can be downloaded from http://nifi.apache.org/minifi/download.html under the MiNiFi Toolkit Binaries section. Information on its usage is available at https://nifi.apache.org/minifi/minifi-toolkit.html.

Flow Controller:
    name: MiNiFi Flow

Processors:
    - name: GetFile
      class: org.apache.nifi.processors.standard.GetFile
      max concurrent tasks: 1
      scheduling strategy: TIMER_DRIVEN
      scheduling period: 1 sec
      penalization period: 30 sec
      yield period: 1 sec
      run duration nanos: 0
      auto-terminated relationships list:
      Properties:
          Input Directory: /tmp/getfile
          Keep Source File: true

Connections:
    - name: TransferFilesToRPG
      source name: GetFile
      source relationship name: success
      destination name: 471deef6-2a6e-4a7d-912a-81cc17e3a204
      max work queue size: 0
      max work queue data size: 1 MB
      flowfile expiration: 60 sec

Remote Processing Groups:
    - name: NiFi Flow
      url: http://localhost:8080/nifi
      timeout: 30 secs
      yield period: 10 sec
      Input Ports:
          - id: 471deef6-2a6e-4a7d-912a-81cc17e3a204
            name: From Node A
            max concurrent tasks: 1
            Properties:
                Port: 10001
                Host Name: localhost

Running

After completing a build, the application can be run by issuing the following from :

$ ./bin/minifi.sh start

By default, this will make use of a config.yml located in the conf directory. This configuration file location can be altered by adjusting the property nifi.flow.configuration.file in minifi.properties located in the conf directory.

Stopping

MiNiFi can then be stopped by issuing:

$ ./bin/minifi.sh stop

Installing as a service

MiNiFi can also be installed as a system service using minifi.sh with an optional “service name” (default: minifi)

$ ./bin/minifi.sh install [service name]

Documentation

See http://nifi.apache.org/minifi for the latest documentation.

License

Except as otherwise noted this software is licensed under the Apache License, Version 2.0

Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.