This document summarizes a Dagster community meeting at Rohde & Schwarz in May 2021. It introduces Simon as the presenter and discusses how Rohde & Schwarz uses Dagster for their SmartAnalytics product. Key points include:
- Rohde & Schwarz uses Dagster to move their ETL pipelines to the cloud for improved scalability.
- Their Dagster implementation includes event-driven pipelines using sensors to monitor file uploads and listen to an S3 folder.
- Advantages of Dagster include replacing their custom ETL engine, improved troubleshooting with its error reporting, and easier code reuse through resources and solids.
- Next steps include adding tests, improving documentation, establishing best practices, and
In this session you will learn how Qlik’s Data Integration platform (formerly Attunity) reduces time to market and time to insights for modern data architectures through real-time automated pipelines for data warehouse and data lake initiatives. Hear how pipeline automation has impacted large financial services organizations ability to rapidly deliver value and see how to build an automated near real-time pipeline to efficiently load and transform data into a Snowflake data warehouse on AWS in under 10 minutes.
Dynamic Partition Pruning in Apache SparkDatabricks
In data analytics frameworks such as Spark it is important to detect and avoid scanning data that is irrelevant to the executed query, an optimization which is known as partition pruning. Dynamic partition pruning occurs when the optimizer is unable to identify at parse time the partitions it has to eliminate. In particular, we consider a star schema which consists of one or multiple fact tables referencing any number of dimension tables. In such join operations, we can prune the partitions the join reads from a fact table by identifying those partitions that result from filtering the dimension tables. In this talk we present a mechanism for performing dynamic partition pruning at runtime by reusing the dimension table broadcast results in hash joins and we show significant improvements for most TPCDS queries.
Modularized ETL Writing with Apache SparkDatabricks
Apache Spark has been an integral part of Stitch Fix’s compute infrastructure. Over the past five years, it has become our de facto standard for most ETL and heavy data processing needs and expanded our capabilities in the Data Warehouse.
Since all our writes to the Data Warehouse are through Apache Spark, we took advantage of that to add more modules that supplement ETL writing. Config driven and purposeful, these modules perform tasks onto a Spark Dataframe meant for a destination Hive table.
These are organized as a sequence of transformations on the Apache Spark dataframe prior to being written to the table.These include a process of journalizing. It is a process which helps maintain a non-duplicated historical record of mutable data associated with different parts of our business.
Data quality, another such module, is enabled on the fly using Apache Spark. Using Apache Spark we calculate metrics and have an adjacent service to help run quality tests for a table on the incoming data.
And finally, we cleanse data based on provided configurations, validate and write data into the warehouse. We have an internal versioning strategy in the Data Warehouse that allows us to know the difference between new and old data for a table.
Having these modules at the time of writing data allows cleaning, validation and testing of data prior to entering the Data Warehouse thus relieving us, programmatically, of most of the data problems. This talk focuses on ETL writing in Stitch Fix and describes these modules that help our Data Scientists on a daily basis.
Airbyte @ Airflow Summit - The new modern data stackMichel Tricot
In this talk, I’ll describe how you can leverage 3 open-source standards - workflow management with Airflow, EL with Airbyte, transformation with dbt - to build your next modern data stack. I’ll explain how to configure your Airflow DAG to trigger Airbyte’s data replication jobs and DBT’s transformation one with a concrete use case.
Apache Cassandra operations have the reputation to be simple on single datacenter deployments and / or low volume clusters but they become way more complex on high latency multi-datacenter clusters with high volume and / or high throughout: basic Apache Cassandra operations such as repairs, compactions or hints delivery can have dramatic consequences even on a healthy high latency multi-datacenter cluster.
In this presentation, Julien will go through Apache Cassandra mutli-datacenter concepts first then show multi-datacenter operations essentials in details: bootstrapping new nodes and / or datacenter, repairs strategy, Java GC tuning, OS tuning, Apache Cassandra configuration and monitoring.
Based on his 3 years experience managing a multi-datacenter cluster against Apache Cassandra 2.0, 2.1, 2.2 and 3.0, Julien will give you tips on how to anticipate and prevent / mitigate issues related to basic Apache Cassandra operations with a multi-datacenter cluster.
About the Speaker
Julien Anguenot VP Software Engineering, iland Internet Solutions, Corp
Julien currently serves as iland's Vice President of Software Engineering. Prior to joining iland, Mr. Anguenot held tech leadership positions at several open source content management vendors and tech startups in Europe and in the U.S. Julien is a long time Open Source software advocate, contributor and speaker: Zope, ZODB, Nuxeo contributor, Zope and OpenStack foundations member, his talks includes Apache Con, Cassandra summit, OpenStack summit, The WWW Conference or still EuroPython.
Using Delta Lake to Transform a Legacy Apache Spark to Support Complex Update...Databricks
The convergence of big data technology towards traditional database domain has became an industry trend. At present, open source big data processing engines, such as Apache Spark, Apache Hadoop, Apache Flink, etc., already support SQL interfaces, and the usage of SQL basically occupies a dominant position. Companies use above open source software to build their own ETL framework and OLAP technology. However, in terms of OLTP technology, it is still a strong point of traditional databases. One of the main reasons is the support of ACID by traditional databases.
In this session you will learn how Qlik’s Data Integration platform (formerly Attunity) reduces time to market and time to insights for modern data architectures through real-time automated pipelines for data warehouse and data lake initiatives. Hear how pipeline automation has impacted large financial services organizations ability to rapidly deliver value and see how to build an automated near real-time pipeline to efficiently load and transform data into a Snowflake data warehouse on AWS in under 10 minutes.
Dynamic Partition Pruning in Apache SparkDatabricks
In data analytics frameworks such as Spark it is important to detect and avoid scanning data that is irrelevant to the executed query, an optimization which is known as partition pruning. Dynamic partition pruning occurs when the optimizer is unable to identify at parse time the partitions it has to eliminate. In particular, we consider a star schema which consists of one or multiple fact tables referencing any number of dimension tables. In such join operations, we can prune the partitions the join reads from a fact table by identifying those partitions that result from filtering the dimension tables. In this talk we present a mechanism for performing dynamic partition pruning at runtime by reusing the dimension table broadcast results in hash joins and we show significant improvements for most TPCDS queries.
Modularized ETL Writing with Apache SparkDatabricks
Apache Spark has been an integral part of Stitch Fix’s compute infrastructure. Over the past five years, it has become our de facto standard for most ETL and heavy data processing needs and expanded our capabilities in the Data Warehouse.
Since all our writes to the Data Warehouse are through Apache Spark, we took advantage of that to add more modules that supplement ETL writing. Config driven and purposeful, these modules perform tasks onto a Spark Dataframe meant for a destination Hive table.
These are organized as a sequence of transformations on the Apache Spark dataframe prior to being written to the table.These include a process of journalizing. It is a process which helps maintain a non-duplicated historical record of mutable data associated with different parts of our business.
Data quality, another such module, is enabled on the fly using Apache Spark. Using Apache Spark we calculate metrics and have an adjacent service to help run quality tests for a table on the incoming data.
And finally, we cleanse data based on provided configurations, validate and write data into the warehouse. We have an internal versioning strategy in the Data Warehouse that allows us to know the difference between new and old data for a table.
Having these modules at the time of writing data allows cleaning, validation and testing of data prior to entering the Data Warehouse thus relieving us, programmatically, of most of the data problems. This talk focuses on ETL writing in Stitch Fix and describes these modules that help our Data Scientists on a daily basis.
Airbyte @ Airflow Summit - The new modern data stackMichel Tricot
In this talk, I’ll describe how you can leverage 3 open-source standards - workflow management with Airflow, EL with Airbyte, transformation with dbt - to build your next modern data stack. I’ll explain how to configure your Airflow DAG to trigger Airbyte’s data replication jobs and DBT’s transformation one with a concrete use case.
Apache Cassandra operations have the reputation to be simple on single datacenter deployments and / or low volume clusters but they become way more complex on high latency multi-datacenter clusters with high volume and / or high throughout: basic Apache Cassandra operations such as repairs, compactions or hints delivery can have dramatic consequences even on a healthy high latency multi-datacenter cluster.
In this presentation, Julien will go through Apache Cassandra mutli-datacenter concepts first then show multi-datacenter operations essentials in details: bootstrapping new nodes and / or datacenter, repairs strategy, Java GC tuning, OS tuning, Apache Cassandra configuration and monitoring.
Based on his 3 years experience managing a multi-datacenter cluster against Apache Cassandra 2.0, 2.1, 2.2 and 3.0, Julien will give you tips on how to anticipate and prevent / mitigate issues related to basic Apache Cassandra operations with a multi-datacenter cluster.
About the Speaker
Julien Anguenot VP Software Engineering, iland Internet Solutions, Corp
Julien currently serves as iland's Vice President of Software Engineering. Prior to joining iland, Mr. Anguenot held tech leadership positions at several open source content management vendors and tech startups in Europe and in the U.S. Julien is a long time Open Source software advocate, contributor and speaker: Zope, ZODB, Nuxeo contributor, Zope and OpenStack foundations member, his talks includes Apache Con, Cassandra summit, OpenStack summit, The WWW Conference or still EuroPython.
Using Delta Lake to Transform a Legacy Apache Spark to Support Complex Update...Databricks
The convergence of big data technology towards traditional database domain has became an industry trend. At present, open source big data processing engines, such as Apache Spark, Apache Hadoop, Apache Flink, etc., already support SQL interfaces, and the usage of SQL basically occupies a dominant position. Companies use above open source software to build their own ETL framework and OLAP technology. However, in terms of OLTP technology, it is still a strong point of traditional databases. One of the main reasons is the support of ACID by traditional databases.
The Missing Manual for Leveled Compaction Strategy (Wei Deng & Ryan Svihla, D...DataStax
In this presentation, we will look into JIRAs, JavaDocs and system log entries to gain a deeper understanding on how LCS works under the hood. We will explain what scenarios don't work well for LCS and (more importantly) why. We will leverage legacy TRACE/DEBUG level log for compaction related objects as well as some newer compaction logging information introduced in C* 3.6 (CASSANDRA-10805) to gain better insights.
About the Speakers
Wei Deng Solutions Architect, DataStax
Solutions Architect for DataStax. I have a strong interest in big data, cloud application and distributed computing practices.
Data Lakehouse, Data Mesh, and Data Fabric (r2)James Serra
So many buzzwords of late: Data Lakehouse, Data Mesh, and Data Fabric. What do all these terms mean and how do they compare to a modern data warehouse? In this session I’ll cover all of them in detail and compare the pros and cons of each. They all may sound great in theory, but I'll dig into the concerns you need to be aware of before taking the plunge. I’ll also include use cases so you can see what approach will work best for your big data needs. And I'll discuss Microsoft version of the data mesh.
A Thorough Comparison of Delta Lake, Iceberg and HudiDatabricks
Recently, a set of modern table formats such as Delta Lake, Hudi, Iceberg spring out. Along with Hive Metastore these table formats are trying to solve problems that stand in traditional data lake for a long time with their declared features like ACID, schema evolution, upsert, time travel, incremental consumption etc.
This is the presentation for the lecture of Dimitar Mitov "Data Analytics with Dremio" (in Bulgarian), part of OpenFest 2022: https://www.openfest.org/2022/bg/full-schedule-bg/
Data Warehouse - Incremental Migration to the CloudMichael Rainey
A data warehouse (DW) migration is no small undertaking, especially when moving from on-premises to the cloud. A typical data warehouse has numerous data sources connecting and loading data into the DW, ETL tools and data integration scripts performing transformations, and reporting, advanced analytics, or ad-hoc query tools accessing the data for insights and analysis. That’s a lot to coordinate and the data warehouse cannot be migrated all at once. Using a data replication technology such as Oracle GoldenGate, the data warehouse migration can be performed incrementally by keeping the data in-sync between the original DW and the new, cloud DW. This session will dive into the steps necessary for this incremental migration approach and walk through a customer use case scenario, leaving attendees with an understanding of how to perform a data warehouse migration to the cloud.
Presented at RMOUG Training Days 2019
Cassandra Data Modeling - Practical Considerations @ Netflixnkorla1share
Cassandra community has consistently requested that we cover C* schema design concepts. This presentation goes in depth on the following topics:
- Schema design
- Best Practices
- Capacity Planning
- Real World Examples
Details:
• DevOps and Business Intelligence?
• CI/CD Pipelines: What are they?
• Database Deployments: State based vs Migration based
• Snowflake features for CI/CD
• Azure DevOps: Build and Release Pipelines
• Putting it all together: End to End solution
• Demo
Build Real-Time Applications with Databricks StreamingDatabricks
In this presentation, we will study a recent use case we implemented recently. In this use case we are working with a large, metropolitan fire department. Our company has already created a complete analytics architecture for the department based upon Azure Data Factory, Databricks, Delta Lake, Azure SQL and Azure SQL Server Analytics Services (SSAS). While this architecture works very well for the department, they would like to add a real-time channel to their reporting infrastructure.
This channel should serve up the following information: •The most up-to-date locations and status of equipment (fire trucks, ambulances, ladders etc.)
• The current locations and status of firefighters, EMT personnel and other relevant fire department employees
• The current list of active incidents within the city The above information should be visualized through an automatically updating dashboard. The central component of the dashboard will be map which automatically updates with the locations and incidents. This view should be as real-time as possible and will be used by the fire chiefs to assist with real-time decision-making on resource and equipment deployments.
In this presentation, we will leverage Databricks, Spark Structured Streaming, Delta Lake and the Azure platform to create this real-time delivery channel.
Building Robust Production Data Pipelines with Databricks DeltaDatabricks
"Most data practitioners grapple with data quality issues and data pipeline complexities—it's the bane of their existence. Data engineers, in particular, strive to design and deploy robust data pipelines that serve reliable data in a performant manner so that their organizations can make the most of their valuable corporate data assets.
Databricks Delta, part of Databricks Runtime, is a next-generation unified analytics engine built on top of Apache Spark. Built on open standards, Delta employs co-designed compute and storage and is compatible with Spark API’s. It powers high data reliability and query performance to support big data use cases, from batch and streaming ingests, fast interactive queries to machine learning. In this tutorial we will discuss the requirements of modern data pipelines, the challenges data engineers face when it comes to data reliability and performance and how Delta can help. Through presentation, code examples and notebooks, we will explain pipeline challenges and the use of Delta to address them. You will walk away with an understanding of how you can apply this innovation to your data architecture and the benefits you can gain.
This tutorial will be both instructor-led and hands-on interactive session. Instructions in how to get tutorial materials will be covered in class. WHAT
YOU’LL LEARN:
– Understand the key data reliability and performance data pipelines challenges
– How Databricks Delta helps build robust pipelines at scale
– Understand how Delta fits within an Apache Spark™ environment – How to use Delta to realize data reliability improvements
– How to deliver performance gains using Delta
PREREQUISITES:
– A fully-charged laptop (8-16GB memory) with Chrome or Firefox
– Pre-register for Databricks Community Edition"
Speakers: Steven Yu, Burak Yavuz
In Data Engineer's Lunch #54, we will discuss the data build tool, a tool for managing data transformations with config files rather than code. We will be connecting it to Apache Spark and using it to perform transformations.
Accompanying YouTube: https://youtu.be/dwZlYG6RCSY
Sign Up For Our Newsletter: http://eepurl.com/grdMkn
Join Data Engineer’s Lunch Weekly at 12 PM EST Every Monday:
https://www.meetup.com/Data-Wranglers-DC/events/
Cassandra.Link:
https://cassandra.link/
Follow Us and Reach Us At:
Anant:
https://www.anant.us/
Awesome Cassandra:
https://github.com/Anant/awesome-cassandra
Email:
solutions@anant.us
LinkedIn:
https://www.linkedin.com/company/anant/
Twitter:
https://twitter.com/anantcorp
Eventbrite:
https://www.eventbrite.com/o/anant-1072927283
Facebook:
https://www.facebook.com/AnantCorp/
Join The Anant Team:
https://www.careers.anant.us
Getting Started with Databricks SQL AnalyticsDatabricks
It has long been said that business intelligence needs a relational warehouse, but that view is changing. With the Lakehouse architecture being shouted from the rooftops, Databricks have released SQL Analytics, an alternative workspace for SQL-savvy users to interact with an analytics-tuned cluster. But how does it work? Where do you start? What does a typical Data Analyst’s user journey look like with the tool?
This session will introduce the new workspace and walk through the various key features – how you set up a SQL Endpoint, the query workspace, creating rich dashboards and connecting up BI tools such as Microsoft Power BI.
If you’re truly trying to create a Lakehouse experience that satisfies your SQL-loving Data Analysts, this is a tool you’ll need to be familiar with and include in your design patterns, and this session will set you on the right path.
by Darin Briskman, Technical Evangelist, AWS
Database Freedom means being able to use the database engine that’s right for you as your needs evolve. Being locked into a specific technology can prevent you from achieving your mission. Fortunately, AWS Database Migration Service makes it easy to switch between different database engines. We’ll look at how to use Schema Migration Tool with DMS to switch from a commercial database to open source. You’ll need a laptop with a Firefox or Chrome browser.
The Modern Data Team for the Modern Data Stack: dbt and the Role of the Analy...Databricks
A traditional data team has roles including data engineer, data scientist, and data analyst. However, many organizations are finding success by integrating a new role – the analytics engineer. The analytics engineer develops a code-based data infrastructure that can serve both analytics and data science teams. He or she develops re-usable data models using the software engineering practices of version control and unit testing, and provides the critical domain expertise that ensures that data products are relevant and insightful. In this talk we’ll talk about the role and skill set of the analytics engineer, and discuss how dbt, an open source programming environment, empowers anyone with a SQL skillset to fulfill this new role on the data team. We’ll demonstrate how to use dbt to build version-controlled data models on top of Delta Lake, test both the code and our assumptions about the underlying data, and orchestrate complete data pipelines on Apache Spark™.
5 Factors When Selecting a High Performance, Low Latency DatabaseScyllaDB
There are hundreds of possible databases you can choose from today. Yet if you draw up a short list of critical criteria related to performance and scalability for your use case, the field of choices narrows and your evaluation decision becomes much easier.
In this session, we’ll explore 5 essential factors to consider when selecting a high performance low latency database, including options, opportunities, and tradeoffs related to software architecture, hardware utilization, interoperability, RASP, and Deployment.
Architect’s Open-Source Guide for a Data Mesh ArchitectureDatabricks
Data Mesh is an innovative concept addressing many data challenges from an architectural, cultural, and organizational perspective. But is the world ready to implement Data Mesh?
In this session, we will review the importance of core Data Mesh principles, what they can offer, and when it is a good idea to try a Data Mesh architecture. We will discuss common challenges with implementation of Data Mesh systems and focus on the role of open-source projects for it. Projects like Apache Spark can play a key part in standardized infrastructure platform implementation of Data Mesh. We will examine the landscape of useful data engineering open-source projects to utilize in several areas of a Data Mesh system in practice, along with an architectural example. We will touch on what work (culture, tools, mindset) needs to be done to ensure Data Mesh is more accessible for engineers in the industry.
The audience will leave with a good understanding of the benefits of Data Mesh architecture, common challenges, and the role of Apache Spark and other open-source projects for its implementation in real systems.
This session is targeted for architects, decision-makers, data-engineers, and system designers.
MLOps implemented - how we combine the cloud & open-source to boost data scie...GetInData
Check out more about this presentation here: https://www.youtube.com/watch?v=nSsssYHiylQ&t=17s
Presentation from the performance given by our team during the NSML Summit.
Authors: Krzysztof Zarzycki, Marek Wiewiórka
Linkedin: https://www.linkedin.com/in/kzarzycki/
https://www.linkedin.com/in/marekwiewiorka/
___
Getindata is a company founded in 2014 by ex-Spotify data engineers. From day one our focus has been on Big Data projects. We bring together a group of best and most experienced experts in Poland, working with cloud and open-source Big Data technologies to help companies build scalable data architectures and implement advanced analytics over large data sets.
Our experts have vast production experience in implementing Big Data projects for Polish as well as foreign companies including i.a. Spotify, Play, Truecaller, Kcell, Acast, Allegro, ING, Agora, Synerise, StepStone, iZettle and many others from the pharmaceutical, media, finance and FMCG industries.
https://getindata.com
The Missing Manual for Leveled Compaction Strategy (Wei Deng & Ryan Svihla, D...DataStax
In this presentation, we will look into JIRAs, JavaDocs and system log entries to gain a deeper understanding on how LCS works under the hood. We will explain what scenarios don't work well for LCS and (more importantly) why. We will leverage legacy TRACE/DEBUG level log for compaction related objects as well as some newer compaction logging information introduced in C* 3.6 (CASSANDRA-10805) to gain better insights.
About the Speakers
Wei Deng Solutions Architect, DataStax
Solutions Architect for DataStax. I have a strong interest in big data, cloud application and distributed computing practices.
Data Lakehouse, Data Mesh, and Data Fabric (r2)James Serra
So many buzzwords of late: Data Lakehouse, Data Mesh, and Data Fabric. What do all these terms mean and how do they compare to a modern data warehouse? In this session I’ll cover all of them in detail and compare the pros and cons of each. They all may sound great in theory, but I'll dig into the concerns you need to be aware of before taking the plunge. I’ll also include use cases so you can see what approach will work best for your big data needs. And I'll discuss Microsoft version of the data mesh.
A Thorough Comparison of Delta Lake, Iceberg and HudiDatabricks
Recently, a set of modern table formats such as Delta Lake, Hudi, Iceberg spring out. Along with Hive Metastore these table formats are trying to solve problems that stand in traditional data lake for a long time with their declared features like ACID, schema evolution, upsert, time travel, incremental consumption etc.
This is the presentation for the lecture of Dimitar Mitov "Data Analytics with Dremio" (in Bulgarian), part of OpenFest 2022: https://www.openfest.org/2022/bg/full-schedule-bg/
Data Warehouse - Incremental Migration to the CloudMichael Rainey
A data warehouse (DW) migration is no small undertaking, especially when moving from on-premises to the cloud. A typical data warehouse has numerous data sources connecting and loading data into the DW, ETL tools and data integration scripts performing transformations, and reporting, advanced analytics, or ad-hoc query tools accessing the data for insights and analysis. That’s a lot to coordinate and the data warehouse cannot be migrated all at once. Using a data replication technology such as Oracle GoldenGate, the data warehouse migration can be performed incrementally by keeping the data in-sync between the original DW and the new, cloud DW. This session will dive into the steps necessary for this incremental migration approach and walk through a customer use case scenario, leaving attendees with an understanding of how to perform a data warehouse migration to the cloud.
Presented at RMOUG Training Days 2019
Cassandra Data Modeling - Practical Considerations @ Netflixnkorla1share
Cassandra community has consistently requested that we cover C* schema design concepts. This presentation goes in depth on the following topics:
- Schema design
- Best Practices
- Capacity Planning
- Real World Examples
Details:
• DevOps and Business Intelligence?
• CI/CD Pipelines: What are they?
• Database Deployments: State based vs Migration based
• Snowflake features for CI/CD
• Azure DevOps: Build and Release Pipelines
• Putting it all together: End to End solution
• Demo
Build Real-Time Applications with Databricks StreamingDatabricks
In this presentation, we will study a recent use case we implemented recently. In this use case we are working with a large, metropolitan fire department. Our company has already created a complete analytics architecture for the department based upon Azure Data Factory, Databricks, Delta Lake, Azure SQL and Azure SQL Server Analytics Services (SSAS). While this architecture works very well for the department, they would like to add a real-time channel to their reporting infrastructure.
This channel should serve up the following information: •The most up-to-date locations and status of equipment (fire trucks, ambulances, ladders etc.)
• The current locations and status of firefighters, EMT personnel and other relevant fire department employees
• The current list of active incidents within the city The above information should be visualized through an automatically updating dashboard. The central component of the dashboard will be map which automatically updates with the locations and incidents. This view should be as real-time as possible and will be used by the fire chiefs to assist with real-time decision-making on resource and equipment deployments.
In this presentation, we will leverage Databricks, Spark Structured Streaming, Delta Lake and the Azure platform to create this real-time delivery channel.
Building Robust Production Data Pipelines with Databricks DeltaDatabricks
"Most data practitioners grapple with data quality issues and data pipeline complexities—it's the bane of their existence. Data engineers, in particular, strive to design and deploy robust data pipelines that serve reliable data in a performant manner so that their organizations can make the most of their valuable corporate data assets.
Databricks Delta, part of Databricks Runtime, is a next-generation unified analytics engine built on top of Apache Spark. Built on open standards, Delta employs co-designed compute and storage and is compatible with Spark API’s. It powers high data reliability and query performance to support big data use cases, from batch and streaming ingests, fast interactive queries to machine learning. In this tutorial we will discuss the requirements of modern data pipelines, the challenges data engineers face when it comes to data reliability and performance and how Delta can help. Through presentation, code examples and notebooks, we will explain pipeline challenges and the use of Delta to address them. You will walk away with an understanding of how you can apply this innovation to your data architecture and the benefits you can gain.
This tutorial will be both instructor-led and hands-on interactive session. Instructions in how to get tutorial materials will be covered in class. WHAT
YOU’LL LEARN:
– Understand the key data reliability and performance data pipelines challenges
– How Databricks Delta helps build robust pipelines at scale
– Understand how Delta fits within an Apache Spark™ environment – How to use Delta to realize data reliability improvements
– How to deliver performance gains using Delta
PREREQUISITES:
– A fully-charged laptop (8-16GB memory) with Chrome or Firefox
– Pre-register for Databricks Community Edition"
Speakers: Steven Yu, Burak Yavuz
In Data Engineer's Lunch #54, we will discuss the data build tool, a tool for managing data transformations with config files rather than code. We will be connecting it to Apache Spark and using it to perform transformations.
Accompanying YouTube: https://youtu.be/dwZlYG6RCSY
Sign Up For Our Newsletter: http://eepurl.com/grdMkn
Join Data Engineer’s Lunch Weekly at 12 PM EST Every Monday:
https://www.meetup.com/Data-Wranglers-DC/events/
Cassandra.Link:
https://cassandra.link/
Follow Us and Reach Us At:
Anant:
https://www.anant.us/
Awesome Cassandra:
https://github.com/Anant/awesome-cassandra
Email:
solutions@anant.us
LinkedIn:
https://www.linkedin.com/company/anant/
Twitter:
https://twitter.com/anantcorp
Eventbrite:
https://www.eventbrite.com/o/anant-1072927283
Facebook:
https://www.facebook.com/AnantCorp/
Join The Anant Team:
https://www.careers.anant.us
Getting Started with Databricks SQL AnalyticsDatabricks
It has long been said that business intelligence needs a relational warehouse, but that view is changing. With the Lakehouse architecture being shouted from the rooftops, Databricks have released SQL Analytics, an alternative workspace for SQL-savvy users to interact with an analytics-tuned cluster. But how does it work? Where do you start? What does a typical Data Analyst’s user journey look like with the tool?
This session will introduce the new workspace and walk through the various key features – how you set up a SQL Endpoint, the query workspace, creating rich dashboards and connecting up BI tools such as Microsoft Power BI.
If you’re truly trying to create a Lakehouse experience that satisfies your SQL-loving Data Analysts, this is a tool you’ll need to be familiar with and include in your design patterns, and this session will set you on the right path.
by Darin Briskman, Technical Evangelist, AWS
Database Freedom means being able to use the database engine that’s right for you as your needs evolve. Being locked into a specific technology can prevent you from achieving your mission. Fortunately, AWS Database Migration Service makes it easy to switch between different database engines. We’ll look at how to use Schema Migration Tool with DMS to switch from a commercial database to open source. You’ll need a laptop with a Firefox or Chrome browser.
The Modern Data Team for the Modern Data Stack: dbt and the Role of the Analy...Databricks
A traditional data team has roles including data engineer, data scientist, and data analyst. However, many organizations are finding success by integrating a new role – the analytics engineer. The analytics engineer develops a code-based data infrastructure that can serve both analytics and data science teams. He or she develops re-usable data models using the software engineering practices of version control and unit testing, and provides the critical domain expertise that ensures that data products are relevant and insightful. In this talk we’ll talk about the role and skill set of the analytics engineer, and discuss how dbt, an open source programming environment, empowers anyone with a SQL skillset to fulfill this new role on the data team. We’ll demonstrate how to use dbt to build version-controlled data models on top of Delta Lake, test both the code and our assumptions about the underlying data, and orchestrate complete data pipelines on Apache Spark™.
5 Factors When Selecting a High Performance, Low Latency DatabaseScyllaDB
There are hundreds of possible databases you can choose from today. Yet if you draw up a short list of critical criteria related to performance and scalability for your use case, the field of choices narrows and your evaluation decision becomes much easier.
In this session, we’ll explore 5 essential factors to consider when selecting a high performance low latency database, including options, opportunities, and tradeoffs related to software architecture, hardware utilization, interoperability, RASP, and Deployment.
Architect’s Open-Source Guide for a Data Mesh ArchitectureDatabricks
Data Mesh is an innovative concept addressing many data challenges from an architectural, cultural, and organizational perspective. But is the world ready to implement Data Mesh?
In this session, we will review the importance of core Data Mesh principles, what they can offer, and when it is a good idea to try a Data Mesh architecture. We will discuss common challenges with implementation of Data Mesh systems and focus on the role of open-source projects for it. Projects like Apache Spark can play a key part in standardized infrastructure platform implementation of Data Mesh. We will examine the landscape of useful data engineering open-source projects to utilize in several areas of a Data Mesh system in practice, along with an architectural example. We will touch on what work (culture, tools, mindset) needs to be done to ensure Data Mesh is more accessible for engineers in the industry.
The audience will leave with a good understanding of the benefits of Data Mesh architecture, common challenges, and the role of Apache Spark and other open-source projects for its implementation in real systems.
This session is targeted for architects, decision-makers, data-engineers, and system designers.
MLOps implemented - how we combine the cloud & open-source to boost data scie...GetInData
Check out more about this presentation here: https://www.youtube.com/watch?v=nSsssYHiylQ&t=17s
Presentation from the performance given by our team during the NSML Summit.
Authors: Krzysztof Zarzycki, Marek Wiewiórka
Linkedin: https://www.linkedin.com/in/kzarzycki/
https://www.linkedin.com/in/marekwiewiorka/
___
Getindata is a company founded in 2014 by ex-Spotify data engineers. From day one our focus has been on Big Data projects. We bring together a group of best and most experienced experts in Poland, working with cloud and open-source Big Data technologies to help companies build scalable data architectures and implement advanced analytics over large data sets.
Our experts have vast production experience in implementing Big Data projects for Polish as well as foreign companies including i.a. Spotify, Play, Truecaller, Kcell, Acast, Allegro, ING, Agora, Synerise, StepStone, iZettle and many others from the pharmaceutical, media, finance and FMCG industries.
https://getindata.com
Microservices as an evolutionary architecture: lessons learnedLuram Archanjo
Over the years the architecture of microservices has been widely adopted, since it provides numerous advantages such as: technological heterogeneity, scalability, decoupling and so on.
In this sense the microservices architecture meets the definitions of an evolutionary architecture, that is, an architecture designed for incremental changes even changes of languages.
In this lecture, we will discuss the decisions to adopt frameworks and techniques such as: Spring, Vert.x, gRPC, Event-driven Architecture in an architecture for a payment medium solution in which throughput and response time is crucial for the survival of the business .
The PPT contains the following content:
1. What is Google Cloud Study Jam
2. What is Cloud Computing
3. Fundamentals of cloud computing
4. what is Generative AI
5. Fundamentals of Generative AI
6. Breif overview on Google Cloud Study Jam.
7. Networking Session.
Docker Bday #5, SF Edition: Introduction to DockerDocker, Inc.
In celebration of Docker's 5th birthday in March, user groups all around the world hosted birthday events with an introduction to Docker presentation and hands-on-labs. We invited Docker users to recognize where they were on their Docker journey and the goal was to help them take the next step of their journey with the help of mentors. This presentation was done at the beginning of the events (this one is from the San Francisco event in HQ) and gives a run down of the birthday event series, Docker's momentum, a basic explanation of containers, the benefits of using the Docker platform, Docker + Kubernetes and more.
apidays LIVE Paris 2021 - Synchronous Communication Patterns by Sébastien Ber...apidays
apidays LIVE Paris 2021 - APIs and the Future of Software
December 7, 8 & 9, 2021
Synchronous Communication Patterns: A journey from ESB to APIs & Service Mesh
Sébastien Bergougnoux, CEO at Devoteam I nexDigital
[Srijan Wednesday Webinar] How to Run Stateless and Stateful Services on K8S ...Srijan Technologies
Speaker: Adheip Singh, Senior DevOps
Kubernetes has taken the tech world by storm. As an orchestration platform, it has eased the deployment & scaling of stateless applications. However, managing complex, in particular stateful applications, is a major pain.
The extensibility of Kubernetes has led to the development of a rapidly evolving ecosystem around K8S. And as an outcome of this extensibility, Kubernetes Operators were designed which eased packaging, deployment as well as management of a Kubernetes application.
In this webinar, we will talk about K8S, with a focus on extensibility and architectural aspects of K8S operators. Additionally, we will perform a live demo of our attempt at writing a Drupal Operator.
Key Takeaways
Understand the extensibility of Kubernetes
- Conceptually understand how to run stateless and stateful services on K8S
- Learn all about K8S operators
- Get a hands-on demo for writing a Drupal Operator
Who is this for
- DevOps
- Technical Architects
- Software Developers
- Anyone interested in learning how to run Drupal workloads on Kubernetes and extensibility of Kubernetes
View all our webinars at: https://www.srijan.net/webinar
I have Over 8+ years of experience as a DevOps Engineer. I came across an interesting position of DevOps Engineering position on your Linked post. Constantly updating my skill set, I am proficient in DevOps Tools like Git, Jenkins Pipeline Automation, AWS, Chef, Ansible, Kubernetes, Terraform, Docker, Shell Scripting,ELK, Jfrog and Prometheus.
Implement a Universal Data Distribution Architecture to Manage All Streaming ...Timothy Spann
Implement a Universal Data Distribution Architecture to Manage All Streaming Data
Cloudera Partner SkillUp
Tim Spann
Principal Developer Advocate in Data In Motion for Cloudera
tspann@cloudera.com
using apache nifi, apache kafka and apache flink in a hybrid environment
cloudera dataflow
cloudera streams messaging manager
cloudera sql streams builder
Ernest Mueller, Karthik Gaekwad, and James Wickett, the Agile Admins (http://theagileadmin.com) delivered this presentation on what's hot in DevOps in 2015 for the BrightTALK Summit. The video is online at https://www.brighttalk.com/webcast/5742/154715
Tampere Docker meetup - Happy 5th Birthday DockerSakari Hoisko
Part of official docker meetup events by Docker Inc.
https://events.docker.com/events/docker-bday-5/
Meetup event:
https://www.meetup.com/Docker-Tampere/events/248566945/
Bahrain ch9 introduction to docker 5th birthday Walid Shaari
A hands-on workshop will go over the foundations of the containers platform, including an overview of the platform system components: images, containers, repositories, clustering, and orchestration. The strategy is to demonstrate through "live demo, and hands-on exercises." The reuse case of containers in building a portable distributed application cluster running a variety of workloads including HPC workload.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
2. Introduction
Simon, Data Engineer
& Author
Working at Rohde &
Schwarz, Writing at
sspaeti.com.
Early user of Dagster
Rohde & Schwarz,
Company
SmartAnalytics,
Product
sspaeti.com,
Blog
Specialized in electronic test
equipment, broadcast & media,
cybersecurity, radio monitoring
and radiolocation, and radio
communication.
Actionable benchmarking,
optimization and monitoring
intelligence from drive test
data in mobile network testing
(MNT)
Genuine news about the
data ecosystem. Topics:
#dataengineering #bigdata
#python #opensource #ETL
3. What Do We Do?
Our tools help to improve the quality and performance of mobile networks
Article Hello Africa! R&S®Freerider 4 Backpack
QualiPoc Android
SmartAnalytics
Source: Iberdrola.com
5. Motivation for using
Dagster
Bringing the ETL into the cloud and
manage at a central place. Being
#bigdata ready.
● on-prem → cloud
● scale-up → scale-out
● and generally overcoming limits
in ETL processing and query
time
10. Assets - Link Data to Computations
● ETL file size,
duration & time
overview
● Assets for
persistent Delta &
Druid tables to see
what pipelines
affected changes
12. Advantages in using Dagster
Replaced Custom Built Engine
We could replace our own created engine.
Implications:
● Stable and tested
● Massive out-of-the-box features
○ Re-start capabilities, backfill,
dependency management,
statemangement of running jobs,
support different modes, easy
testable
Feature rich UI - Dagit
Beautiful UI with supports the user and
engineers to get a fast overview and do
operations.
Implications:
● Everyone can sees what’s going on in
the system:
○ Current jobs
○ State in the past
○ Rich Metadata
13. Advantages in using Dagster
Problem solving
Problems and errors are straightforward to
spot, even given the complex big data
architecture.
Implications:
● Error fixing during development are
fast and easy
● Error reporting are coming with good
amount of context
Easy to learn Dagster
User which haven’t used Dagster, can get
started fast. Concepts behind make sense to
new users.
Implications:
● Developers up to speed fast
● It’s pleasant to write pipelines
14. Advantages in using Dagster
Self-Documented
Pipelines are documented directly within
Dagit. Each step is explained by the solids
and rich metadata e.g. adding SQL-Stmt or
Assets.
Implications:
● Users and customers can easily
understand what’s going on
● Easy to model pipelines
Reusable code
Existing Microservices in Python could be
easily transferred with minimum effort.
With `resources` and `solids` we can re-use
all our code in an easy way.
Implications:
● Easy to consolidate code into Dagster
● No code duplication (DRY-principle)
● Stable and tested functions
● Reduce of boiler-plate compared
implement multiple microservices
● Functional by design
15. Example of Re-usable Code with Resources
Define once
And use everywhere with context
16. Advantages in using Dagster
Kubernetes deployment
Easy way to schedule pods from our
pipelines.
Implications:
● Based on dockerfiles which allows us
to run SQL-Server pods and at the
same time pod with Spark configured
Python based (& SQL supportive)
Python is the language of data and easy to
understand for analysts and engineers. With
prepared easy to inject SQL-statements.
Implications:
● Easier for non Engineers to adapt
● Possible to use wide range of Python
packages, especially for ML
17. Next Steps
Testing
● Add Unit and Smoke Tests to improve
stability
Documentation
● Use Assets more intensively / automated(?)
● Integrate with new data lineage feature
Guidelines
● Extend our Dagster guidelines and best
practices to align on common patterns
Pipelines
● Try dynamic orchestration for overall pipeline
● Add partitions by file_name
18. Questions?
Thanks for listening! Feel free to
reach out to me on Dagster-Slack
or anywhere else.
SmartAnalytics
Mobile Network Testing - MNT
sspaeti.com
Simon Späti
@sspaeti
