Price Comparisons Using Retail REST APIs with Apache NiFi, Kafka and Flink SQL
Part 1: NiFi Rest
Part 2: Kafka - Flink SQL
Part 3: Cloudera Visual Apps
Part 4: Smart Shelf Updates - MiNiFi Agents
MiNiFi Agent Update March 2021
Cloudera Agent Availability
- https://docs.cloudera.com/cem/1.2.2/release-notes/topics/cem-minifi-cpp-agent-updates.html
- https://docs.cloudera.com/cem/1.2.2/release-notes/topics/cem-minifi-cpp-download-locations.html
Getting Started
MiNiFi (C++)
Version cpp-0.9.0
Release Date: 1 March 2021
Highlights of 0.9.0 release include:
- Added support for RocksDB-based content repository for better performance
- Added SQL extension
- Improved task scheduling
- Various C2 improvements
- Bug fixes and improvements to TailFile, ConsumeWindowsEventLog, MergeContent, CompressContent, PublishKafka, InvokeHTTP
- Implemented RetryFlowFile and smart handling of loopback connections
- Added a way to encrypt sensitive config properties and the flow configuration
- Implemented full S3 support
- Reduced memory footprint when working with many flow files
Build Notes:
It is advised that you use the bootstrap.sh when not building on windows.
https://cwiki.apache.org/confluence/display/MINIFI/Release+Notes#ReleaseNotes-Versioncpp-0.9.0
Download Now As Source or Pre-Build for Your Platform
https://nifi.apache.org/minifi/download.html
Kafka Replication with Cloudera Streams Replication Manager
Kafka Replication with Cloudera Streams Replication Manager
Source Event: https://www.cloudera.com/about/events/virtual-events/cloudera-emerging-technology-day.html
Spring Data JPA Against Big Data Sources
Spring Data JPA Against Big Data Sources
Download Hive JDBC Driver
References
New Features of Apache NiFi 1.13.2
New Features of Apache NiFi 1.13.2
Download today: https://nifi.apache.org/download.html
Release Notes: https://cwiki.apache.org/confluence/display/NIFI/Release+Notes#ReleaseNotes-Version1.13.0
New Features
- ListenFTP
- UpdateHiveTable - Hive DDL changes -Hive Update Schema ie Data Drift ie Hive Schema Migration!!!!
- SampleRecord - different sampling approaches to records (Interval Sampling, Probabilistic Sampling, Reservoir Sampling)
- CDC Updates
- Kudu updates
- AMQP and MQTT Integration Upgrades
- ConsumeMQTT - readers and writers added
- HTTP access to NiFi by default is now configured to accept connections to 127.0.0.1/localhost only. If you want to allow broader access for some reason for HTTP and you understand the security implications you can still control that as always by changing the 'nifi.web.http.host' property in nifi.properties as always. That said, please take the time to configure proper HTTPS. We offer detailed instructions and tooling to assist.
- ConsumeMQTT - add record reader/writer
- The ability to run NiFi with no GUI as MiNiFi/NiFi combined code base continues.
- Support for Kudu Dates (https://kudu.apache.org/releases/1.12.0/docs/release_notes.html)
- Updated GRPC versions
- Apache Calcite update
- PutDatabaseRecord update
Here is an example NiFi ETL Flow:
Example NiFi 1.13.2 Flow:
- ConsumeMQTT: now with readers
- UpdateAttribute: set record.sink.name to kafka and recordreader.name to json.
- SampleRecord: sample a few of the records
- PutRecord: Use reader and destination service
- UpdateHiveTable: new sink
Consume from MQTT and read and write to/from records.
Some example attributes from a running flow:
Connection Pools for DatabaseRecordSinks can be JDBC, Hadoop and Hive.
RecordSinkService we will pick Kafka as our destination.
Reader will pick json in our example based on our UpdateAttribute, we can dynamically change this as data streams.
ReaderLookup - lets you pick a reader based on an attribute.
We have defined readers for Parquet, JSON, AVRO, XML and CSV so no matter the type I can automagically read it. Great for reusing code and great for cases like our new ListenFTP where you may get sent tons of different files to process. Use one FLOW!
RecordSinkService can help you make all our flows generic so you can drop in different sinks/destinations for your writers based on what the data coming in is. This is revolutionary for code reuse.
We can write our output in a custom format that could look like a document, HTML, fixed width, a form letter, weird delimiter or whatever you need.
We use the RecordSinkServiceLookup to allow us to change our sink location dynamically, we are passing in an attribute to choose Kafka.
As another output, we can UpdateHiveTable from our data and change the table as needed.
- [NIFI-7386] - AzureStorageCredentialsControllerService should also connect to storage emulator
- [NIFI-7429] - Add Status History capabilities for system level metrics
- [NIFI-7549] - Adding Hazelcast based implementation for DistributedMapCacheClient
- [NIFI-7624] - Build a ListenFTP processor
- [NIFI-7745] - Add a SampleRecord processor
- [NIFI-7796] - Add Prometheus metrics for total bytes received and bytes sent for components
- [NIFI-7801] - Add acknowledgement check to Splunk
- [NIFI-7821] - Create a Cassandra implementation of DistributedMapCacheClient
- [NIFI-7879] - Create record path function for UUID v5
- [NIFI-7906] - Add graph processor with flexibility to query graph database conditioned on flowfile content and attributes
- [NIFI-7989] - Add Hive "data drift" processor
- [NIFI-8136] - Allow State Management to be tied to Process Session
- [NIFI-8142] - Add "on conflict do nothing" feature to PutDatabaseRecord
- [NIFI-8146] - Allow RecordPath to be used for specifying operation type and data fields when using PutDatabaseRecord
- [NIFI-8175] - Add a WindowsEventLogReader
An update Cloudera Flow Management!
Cloudera Flow Management on DataHub Public Cloud
This minor update has some Schema Registry and Atlas integration updates.
If that wasn't enough, new version of MiNiFi C++ Agent!
Cloudera Edge Manager 1.2.2 Release
February 15, 2021
CEM MiNiFi C++ Agent - 1.21.01 release includes:- Support for JSON output in the Consume Windows Even Log processor
- Full Expression Language support on Windows
- Full S3 support (List, Fetch, Get, Put)
Remember when you are done.
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