Blue Pill/Red Pill: The Matrix of Thousands of Data Streams

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Designing a streaming application which has to process data from 1 or 2 streams is easy. Any streaming framework which provides scalability, high-throughput, and fault-tolerance would work. But when the number of streams start growing in order 100s or 1000s, managing them can be daunting. How would you share resources among 1000s of streams with all of them running 24×7? Manage their state, Apply advanced streaming operations, Add/Delete streams without restarting? This talk explains common scenarios & shows techniques that can handle thousands of streams using Spark Structured Streaming.

Dados e análise

WIFI SSID:Spark+AISummit | Password: UnifiedDataAnalytics

Knoldus Inc.
Blue Pill / Red Pill :
The Matrix of thousands
of data streams
#UnifiedDataAnalytics #SparkAISummit

●
My name is Himanshu Gupta
●
Lead Consultant at Knoldus Inc.
●
Twitter: @himanshug735
●
LinkedIn: https://www.linkedin.com/in/himanshu-gupta-25189629/
3#UnifiedDataAnalytics #SparkAISummit
About Me

●
The Need
●
Challenges
●
Our Solution
●
Future Work
4#UnifiedDataAnalytics #SparkAISummit
Agenda

5#UnifiedDataAnalytics #SparkAISummit
The Need: Make Better Use of Real-Time Data

6#UnifiedDataAnalytics #SparkAISummit
The Need: Make Better Use of Real-Time Data

7#UnifiedDataAnalytics #SparkAISummit
Benefits of Real-Time Data
●
In 2014, real-time data analysis reduced crude mortality rate from 7.75% to
6.42% in Queen Alexandra Hospital in Portsmouth and University Hospital
Coventry.
●
World's largest Hedge Fund, Bridgewater, uses Twitter For Real-Time
Economic Modeling.

8#UnifiedDataAnalytics #SparkAISummit
Solution: One Platform
An End-to-end real-time
data platform which can
analyze and prepare data
in a single platform-as-a-
service.

9#UnifiedDataAnalytics #SparkAISummit
Challenge
●
Collecting data from 1000s of
streams is difficult.
●
Using each stream for different
purpose makes processing
harder.
●
Managing data of mission critical
value is a challenge.

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How to overcome the challenges?

11#UnifiedDataAnalytics #SparkAISummit
Stream Data
●
Streaming data into 1000s of streams is a resource intensive process.
●
Since streaming requires dedicated resources, the number of streams
supported by a system gets limited by the resources available.
●
However, if combined, streams can be managed much more efficiently.
●
Also, starting/stopping a stream becomes easy since data is managed by
group.

12#UnifiedDataAnalytics #SparkAISummit
Group Data
For example, consider a Power
plant which has 100s of devices
emitting data in real-time. The data
contains information about different
parameters of device like
temperature, speed, etc. Since the
data is coming from one source
(power plant) it becomes a good
candidate for grouping data into one
stream.

13#UnifiedDataAnalytics #SparkAISummit
Output
As Kafka is being used, the result of combining data from different streams into
one looks like above. Where one key represents one device of the power plant
from previous example.

14#UnifiedDataAnalytics #SparkAISummit
Analyze Data
●
Analyzing combined/grouped data have
many challenges.
●
For example, applying different analytics
on different data source.
●
Or, managing state of each data source.

15#UnifiedDataAnalytics #SparkAISummit
Use Spark
Since the introduction of
Structured Streaming in
Apache Spark 2.0, the way
processing streams has
changed a lot. As it has
brought a lot of features
which were earlier unheard.

16#UnifiedDataAnalytics #SparkAISummit
Why Spark?
●
Provides support for ad-hoc queries, i.e.,
helps in applying different analytics on
different data source.
●
Manages state of each data source
which via Arbitrary Stateful Operations.

17#UnifiedDataAnalytics #SparkAISummit
Store Data
●
Storing data might look an easy task but
it is not.
●
Because after analysis of multiple data
sources is done it is difficult to
materialize it and save it in different
locations.
●
And, also saving in such a way that
retrieving data becomes Easy.

18#UnifiedDataAnalytics #SparkAISummit
Again! Use Spark
Apache Spark comes to
rescue here as well. Spark
Structured Streaming has
support for 6 different types
of output sinks.

19#UnifiedDataAnalytics #SparkAISummit
Result
The data is saved in a hierarchical file system manner in AWS S3. Each sub file
represents a device/data source in the power plant example.

21#UnifiedDataAnalytics #SparkAISummit
Future Work

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AND REVIEW THE SESSIONS
SEARCH SPARK + AI SUMMIT

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Data scientists face numerous challenges throughout the data science workflow that hinder productivity. As organizations continue to become more data-driven, a collaborative environment is more critical than ever — one that provides easier access and visibility into the data, reports and dashboards built against the data, reproducibility, and insights uncovered within the data.. Join us to hear how Databricks’ open and collaborative platform simplifies data science by enabling you to run all types of analytics workloads, from data preparation to exploratory analysis and predictive analytics, at scale — all on one unified platform.

Learn to Use Databricks for Data Science

Databricks

Application performance monitoring (APM) has become the cornerstone of software engineering allowing engineering teams to quickly identify and remedy production issues. However, as the world moves to intelligent software applications that are built using machine learning, traditional APM quickly becomes insufficient to identify and remedy production issues encountered in these modern software applications. As a lead software engineer at NewRelic, my team built high-performance monitoring systems including Insights, Mobile, and SixthSense. As I transitioned to building ML Monitoring software, I found the architectural principles and design choices underlying APM to not be a good fit for this brand new world. In fact, blindly following APM designs led us down paths that would have been better left unexplored. In this talk, I draw upon my (and my team’s) experience building an ML Monitoring system from the ground up and deploying it on customer workloads running large-scale ML training with Spark as well as real-time inference systems. I will highlight how the key principles and architectural choices of APM don’t apply to ML monitoring. You’ll learn why, understand what ML Monitoring can successfully borrow from APM, and hear what is required to build a scalable, robust ML Monitoring architecture.

Why APM Is Not the Same As ML Monitoring

Databricks

Autonomy and ownership are core to working at Stitch Fix, particularly on the Algorithms team. We enable data scientists to deploy and operate their models independently, with minimal need for handoffs or gatekeeping. By writing a simple function and calling out to an intuitive API, data scientists can harness a suite of platform-provided tooling meant to make ML operations easy. In this talk, we will dive into the abstractions the Data Platform team has built to enable this. We will go over the interface data scientists use to specify a model and what that hooks into, including online deployment, batch execution on Spark, and metrics tracking and visualization.

The Function, the Context, and the Data—Enabling ML Ops at Stitch Fix

Databricks

In this talk, I will dive into the stage level scheduling feature added to Apache Spark 3.1. Stage level scheduling extends upon Project Hydrogen by improving big data ETL and AI integration and also enables multiple other use cases. It is beneficial any time the user wants to change container resources between stages in a single Apache Spark application, whether those resources are CPU, Memory or GPUs. One of the most popular use cases is enabling end-to-end scalable Deep Learning and AI to efficiently use GPU resources. In this type of use case, users read from a distributed file system, do data manipulation and filtering to get the data into a format that the Deep Learning algorithm needs for training or inference and then sends the data into a Deep Learning algorithm. Using stage level scheduling combined with accelerator aware scheduling enables users to seamlessly go from ETL to Deep Learning running on the GPU by adjusting the container requirements for different stages in Spark within the same application. This makes writing these applications easier and can help with hardware utilization and costs. There are other ETL use cases where users want to change CPU and memory resources between stages, for instance there is data skew or perhaps the data size is much larger in certain stages of the application. In this talk, I will go over the feature details, cluster requirements, the API and use cases. I will demo how the stage level scheduling API can be used by Horovod to seamlessly go from data preparation to training using the Tensorflow Keras API using GPUs. The talk will also touch on other new Apache Spark 3.1 functionality, such as pluggable caching, which can be used to enable faster dataframe access when operating from GPUs.

Stage Level Scheduling Improving Big Data and AI Integration

Databricks

In this talk, I would like to introduce an open-source tool built by our team that simplifies the data conversion from Apache Spark to deep learning frameworks. Imagine you have a large dataset, say 20 GBs, and you want to use it to train a TensorFlow model. Before feeding the data to the model, you need to clean and preprocess your data using Spark. Now you have your dataset in a Spark DataFrame. When it comes to the training part, you may have the problem: How can I convert my Spark DataFrame to some format recognized by my TensorFlow model? The existing data conversion process can be tedious. For example, to convert an Apache Spark DataFrame to a TensorFlow Dataset file format, you need to either save the Apache Spark DataFrame on a distributed filesystem in parquet format and load the converted data with third-party tools such as Petastorm, or save it directly in TFRecord files with spark-tensorflow-connector and load it back using TFRecordDataset. Both approaches take more than 20 lines of code to manage the intermediate data files, rely on different parsing syntax, and require extra attention for handling vector columns in the Spark DataFrames. In short, all these engineering frictions greatly reduced the data scientists’ productivity. The Databricks Machine Learning team contributed a new Spark Dataset Converter API to Petastorm to simplify these tedious data conversion process steps. With the new API, it takes a few lines of code to convert a Spark DataFrame to a TensorFlow Dataset or a PyTorch DataLoader with default parameters. In the talk, I will use an example to show how to use the Spark Dataset Converter to train a Tensorflow model and how simple it is to go from single-node training to distributed training on Databricks.

Simplify Data Conversion from Spark to TensorFlow and PyTorch

Databricks

There is no doubt Kubernetes has emerged as the next generation of cloud native infrastructure to support a wide variety of distributed workloads. Apache Spark has evolved to run both Machine Learning and large scale analytics workloads. There is growing interest in running Apache Spark natively on Kubernetes. By combining the flexibility of Kubernetes and scalable data processing with Apache Spark, you can run any data and machine pipelines on this infrastructure while effectively utilizing resources at disposal. In this talk, Rajesh Thallam and Sougata Biswas will share how to effectively run your Apache Spark applications on Google Kubernetes Engine (GKE) and Google Cloud Dataproc, orchestrate the data and machine learning pipelines with managed Apache Airflow on GKE (Google Cloud Composer). Following topics will be covered: – Understanding key traits of Apache Spark on Kubernetes- Things to know when running Apache Spark on Kubernetes such as autoscaling- Demonstrate running analytics pipelines on Apache Spark orchestrated with Apache Airflow on Kubernetes cluster.

Scaling your Data Pipelines with Apache Spark on Kubernetes

Databricks

Pipelines have become ubiquitous, as the need for stringing multiple functions to compose applications has gained adoption and popularity. Common pipeline abstractions such as “fit” and “transform” are even shared across divergent platforms such as Python Scikit-Learn and Apache Spark. Scaling pipelines at the level of simple functions is desirable for many AI applications, however is not directly supported by Ray’s parallelism primitives. In this talk, Raghu will describe a pipeline abstraction that takes advantage of Ray’s compute model to efficiently scale arbitrarily complex pipeline workflows. He will demonstrate how this abstraction cleanly unifies pipeline workflows across multiple platforms such as Scikit-Learn and Spark, and achieves nearly optimal scale-out parallelism on pipelined computations. Attendees will learn how pipelined workflows can be mapped to Ray’s compute model and how they can both unify and accelerate their pipelines with Ray.

Scaling and Unifying SciKit Learn and Apache Spark Pipelines

Databricks

In this talk about zipline, we will introduce a new type of windowing construct called a sawtooth window. We will describe various properties about sawtooth windows that we utilize to achieve online-offline consistency, while still maintaining high-throughput, low-read latency and tunable write latency for serving machine learning features.We will also talk about a simple deployment strategy for correcting feature drift – due operations that are not “abelian groups”, that operate over change data.

Sawtooth Windows for Feature Aggregations

Databricks

We want to present multiple anti patterns utilizing Redis in unconventional ways to get the maximum out of Apache Spark.All examples presented are tried and tested in production at Scale at Adobe. The most common integration is spark-redis which interfaces with Redis as a Dataframe backing Store or as an upstream for Structured Streaming. We deviate from the common use cases to explore where Redis can plug gaps while scaling out high throughput applications in Spark. Niche 1 : Long Running Spark Batch Job – Dispatch New Jobs by polling a Redis Queue · Why? o Custom queries on top a table; We load the data once and query N times · Why not Structured Streaming · Working Solution using Redis Niche 2 : Distributed Counters · Problems with Spark Accumulators · Utilize Redis Hashes as distributed counters · Precautions for retries and speculative execution · Pipelining to improve performance

Redis + Apache Spark = Swiss Army Knife Meets Kitchen Sink

Databricks

In the era of microservices, decentralized ML architectures and complex data pipelines, data quality has become a bigger challenge than ever. When data is involved in complex business processes and decisions, bad data can, and will, affect the bottom line. As a result, ensuring data quality across the entire ML pipeline is both costly, and cumbersome while data monitoring is often fragmented and performed ad hoc. To address these challenges, we built whylogs, an open source standard for data logging. It is a lightweight data profiling library that enables end-to-end data profiling across the entire software stack. The library implements a language and platform agnostic approach to data quality and data monitoring. It can work with different modes of data operations, including streaming, batch and IoT data. In this talk, we will provide an overview of the whylogs architecture, including its lightweight statistical data collection approach and various integrations. We will demonstrate how the whylogs integration with Apache Spark achieves large scale data profiling, and we will show how users can apply this integration into existing data and ML pipelines.

Re-imagine Data Monitoring with whylogs and Spark

Databricks

Machine learning (ML) models are typically part of prediction queries that consist of a data processing part (e.g., for joining, filtering, cleaning, featurization) and an ML part invoking one or more trained models. In this presentation, we identify significant and unexplored opportunities for optimization. To the best of our knowledge, this is the first effort to look at prediction queries holistically, optimizing across both the ML and SQL components. We will present Raven, an end-to-end optimizer for prediction queries. Raven relies on a unified intermediate representation that captures both data processing and ML operators in a single graph structure. This allows us to introduce optimization rules that (i) reduce unnecessary computations by passing information between the data processing and ML operators (ii) leverage operator transformations (e.g., turning a decision tree to a SQL expression or an equivalent neural network) to map operators to the right execution engine, and (iii) integrate compiler techniques to take advantage of the most efficient hardware backend (e.g., CPU, GPU) for each operator. We have implemented Raven as an extension to Spark’s Catalyst optimizer to enable the optimization of SparkSQL prediction queries. Our implementation also allows the optimization of prediction queries in SQL Server. As we will show, Raven is capable of improving prediction query performance on Apache Spark and SQL Server by up to 13.1x and 330x, respectively. For complex models, where GPU acceleration is beneficial, Raven provides up to 8x speedup compared to state-of-the-art systems. As part of the presentation, we will also give a demo showcasing Raven in action.

Raven: End-to-end Optimization of ML Prediction Queries

Databricks

Semantic segmentation is the classification of every pixel in an image/video. The segmentation partitions a digital image into multiple objects to simplify/change the representation of the image into something that is more meaningful and easier to analyze [1][2]. The technique has a wide variety of applications ranging from perception in autonomous driving scenarios to cancer cell segmentation for medical diagnosis. Exponential growth in the datasets that require such segmentation is driven by improvements in the accuracy and quality of the sensors generating the data extending to 3D point cloud data. This growth is further compounded by exponential advances in cloud technologies enabling the storage and compute available for such applications. The need for semantically segmented datasets is a key requirement to improve the accuracy of inference engines that are built upon them. Streamlining the accuracy and efficiency of these systems directly affects the value of the business outcome for organizations that are developing such functionalities as a part of their AI strategy. This presentation details workflows for labeling, preprocessing, modeling, and evaluating performance/accuracy. Scientists and engineers leverage domain-specific features/tools that support the entire workflow from labeling the ground truth, handling data from a wide variety of sources/formats, developing models and finally deploying these models. Users can scale their deployments optimally on GPU-based cloud infrastructure to build accelerated training and inference pipelines while working with big datasets. These environments are optimized for engineers to develop such functionality with ease and then scale against large datasets with Spark-based clusters on the cloud.

Processing Large Datasets for ADAS Applications using Apache Spark

Databricks

At Adobe Experience Platform, we ingest TBs of data every day and manage PBs of data for our customers as part of the Unified Profile Offering. At the heart of this is a bunch of complex ingestion of a mix of normalized and denormalized data with various linkage scenarios power by a central Identity Linking Graph. This helps power various marketing scenarios that are activated in multiple platforms and channels like email, advertisements etc. We will go over how we built a cost effective and scalable data pipeline using Apache Spark and Delta Lake and share our experiences. What are we storing? Multi Source – Multi Channel Problem Data Representation and Nested Schema Evolution Performance Trade Offs with Various formats Go over anti-patterns used (String FTW) Data Manipulation using UDFs Writer Worries and How to Wipe them Away Staging Tables FTW Datalake Replication Lag Tracking Performance Time!

Massive Data Processing in Adobe Using Delta Lake

Databricks

Mais de Databricks (20)

DW Migration Webinar-March 2022.pptx

Data Lakehouse Symposium | Day 1 | Part 1

Data Lakehouse Symposium | Day 1 | Part 2

Data Lakehouse Symposium | Day 2

Data Lakehouse Symposium | Day 4

5 Critical Steps to Clean Your Data Swamp When Migrating Off of Hadoop

Democratizing Data Quality Through a Centralized Platform

Learn to Use Databricks for Data Science

Why APM Is Not the Same As ML Monitoring

The Function, the Context, and the Data—Enabling ML Ops at Stitch Fix

Stage Level Scheduling Improving Big Data and AI Integration

Simplify Data Conversion from Spark to TensorFlow and PyTorch

Scaling your Data Pipelines with Apache Spark on Kubernetes

Scaling and Unifying SciKit Learn and Apache Spark Pipelines

Sawtooth Windows for Feature Aggregations

Redis + Apache Spark = Swiss Army Knife Meets Kitchen Sink

Re-imagine Data Monitoring with whylogs and Spark

Raven: End-to-end Optimization of ML Prediction Queries

Processing Large Datasets for ADAS Applications using Apache Spark

Massive Data Processing in Adobe Using Delta Lake

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This project aims to predict whether a loan application will be approved or denied based on various factors such as applicant's income, credit score, loan amount, etc. Using a dataset containing historical loan application data, we employed machine learning algorithms to build a predictive model. The model was trained on features such as applicant's income, credit history, loan amount, loan term, and others. After training the model, we evaluated its performance using metrics like accuracy, precision, recall, and F1 score. The insights from this project can help financial institutions streamline their loan approval process and make informed decisions. Visit for more information: https://bostoninstituteofanalytics.org/data-science-and-artificial-intelligence/

Predicting Loan Approval: A Data Science Project

Boston Institute of Analytics

Digital advertising, or paid media, encompasses the strategic deployment of online advertisements to reach target audiences efficiently and effectively. This includes any digital platform that supports advertising to deliver unique messages for any objective. Understanding the mechanics of digital advertising platforms, along with insights into audience behaviors and preferences, allows marketers to optimize their ad spend and achieve significant engagement and conversion rates. This lecture is for Advanced Digital & Social Media Strategy (MGMTX 466.05) at UCLA Extension.

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Gen AI on Enterprise Cloud Apache NiFi Milvus Apache Kafka Apache Flink Cloudera Machine Learning Cloudera DataFlow https://medium.com/@tspann/building-a-milvus-connector-for-nifi-34372cb3c7fa https://www.meetup.com/futureofdata-princeton/events/300737266/ https://lu.ma/q7pcfyjn?source=post_page-----34372cb3c7fa--------------------------------&tk=TTyakY If you're interested in working with Generative AI on the cloud, this virtual workshop is for you. Tim Spann from Cloudera and Yujian Tang from Zilliz will cover how you can implement your own GenAI workflows on the cloud at enterprise scale. 9:00 - 9:05: Intro 9:05 - 9:15: What is Milvus 9:15 - 9:25: Cloudera Development Platform 9:25 - 10:00: Demo Location https://www.youtube.com/watch?v=IfWIzKsoHnA https://github.com/tspannhw/SpeakerProfile https://www.linkedin.com/in/yujiantang/

Generative AI on Enterprise Cloud with NiFi and Milvus

Timothy Spann

Blue Pill/Red Pill: The Matrix of Thousands of Data Streams

1. WIFI SSID:Spark+AISummit | Password: UnifiedDataAnalytics

2. Knoldus Inc. Blue Pill / Red Pill : The Matrix of thousands of data streams #UnifiedDataAnalytics #SparkAISummit

3. ● My name is Himanshu Gupta ● Lead Consultant at Knoldus Inc. ● Twitter: @himanshug735 ● LinkedIn: https://www.linkedin.com/in/himanshu-gupta-25189629/ 3#UnifiedDataAnalytics #SparkAISummit About Me

4. ● The Need ● Challenges ● Our Solution ● Future Work 4#UnifiedDataAnalytics #SparkAISummit Agenda

5. 5#UnifiedDataAnalytics #SparkAISummit The Need: Make Better Use of Real-Time Data

6. 6#UnifiedDataAnalytics #SparkAISummit The Need: Make Better Use of Real-Time Data

7. 7#UnifiedDataAnalytics #SparkAISummit Benefits of Real-Time Data ● In 2014, real-time data analysis reduced crude mortality rate from 7.75% to 6.42% in Queen Alexandra Hospital in Portsmouth and University Hospital Coventry. ● World's largest Hedge Fund, Bridgewater, uses Twitter For Real-Time Economic Modeling.

8. 8#UnifiedDataAnalytics #SparkAISummit Solution: One Platform An End-to-end real-time data platform which can analyze and prepare data in a single platform-as-a- service.

9. 9#UnifiedDataAnalytics #SparkAISummit Challenge ● Collecting data from 1000s of streams is difficult. ● Using each stream for different purpose makes processing harder. ● Managing data of mission critical value is a challenge.

10. 10#UnifiedDataAnalytics #SparkAISummit How to overcome the challenges?

11. 11#UnifiedDataAnalytics #SparkAISummit Stream Data ● Streaming data into 1000s of streams is a resource intensive process. ● Since streaming requires dedicated resources, the number of streams supported by a system gets limited by the resources available. ● However, if combined, streams can be managed much more efficiently. ● Also, starting/stopping a stream becomes easy since data is managed by group.

12. 12#UnifiedDataAnalytics #SparkAISummit Group Data For example, consider a Power plant which has 100s of devices emitting data in real-time. The data contains information about different parameters of device like temperature, speed, etc. Since the data is coming from one source (power plant) it becomes a good candidate for grouping data into one stream.

13. 13#UnifiedDataAnalytics #SparkAISummit Output As Kafka is being used, the result of combining data from different streams into one looks like above. Where one key represents one device of the power plant from previous example.

14. 14#UnifiedDataAnalytics #SparkAISummit Analyze Data ● Analyzing combined/grouped data have many challenges. ● For example, applying different analytics on different data source. ● Or, managing state of each data source.

15. 15#UnifiedDataAnalytics #SparkAISummit Use Spark Since the introduction of Structured Streaming in Apache Spark 2.0, the way processing streams has changed a lot. As it has brought a lot of features which were earlier unheard.

16. 16#UnifiedDataAnalytics #SparkAISummit Why Spark? ● Provides support for ad-hoc queries, i.e., helps in applying different analytics on different data source. ● Manages state of each data source which via Arbitrary Stateful Operations.

17. 17#UnifiedDataAnalytics #SparkAISummit Store Data ● Storing data might look an easy task but it is not. ● Because after analysis of multiple data sources is done it is difficult to materialize it and save it in different locations. ● And, also saving in such a way that retrieving data becomes Easy.

18. 18#UnifiedDataAnalytics #SparkAISummit Again! Use Spark Apache Spark comes to rescue here as well. Spark Structured Streaming has support for 6 different types of output sinks.

19. 19#UnifiedDataAnalytics #SparkAISummit Result The data is saved in a hierarchical file system manner in AWS S3. Each sub file represents a device/data source in the power plant example.

20. 20#UnifiedDataAnalytics #SparkAISummit

21. 21#UnifiedDataAnalytics #SparkAISummit Future Work

22. DON’T FORGET TO RATE AND REVIEW THE SESSIONS SEARCH SPARK + AI SUMMIT

Blue Pill/Red Pill: The Matrix of Thousands of Data Streams

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