AWS Big Data

JANUARY 9, 2025

Iceberg offers distinct advantages through its metadata layer over Parquet, such as improved data management, performance optimization, and integration with various query engines. Icebergs table format separates data files from metadata files, enabling efficient data modifications without full dataset rewrites.

Metadata 111

Metadata Snapshot Cost-Benefit Optimization 111

Alation

JULY 19, 2021

What Is Metadata? Metadata is information about data. A clothing catalog or dictionary are both examples of metadata repositories. Indeed, a popular online catalog, like Amazon, offers rich metadata around products to guide shoppers: ratings, reviews, and product details are all examples of metadata.

Metadata 105

Metadata Management Data Governance Machine Learning 105

AWS Big Data

DECEMBER 4, 2024

For more details, refer to Iceberg Release 1.6.1. An Iceberg table’s metadata stores a history of snapshots, which are updated with each transaction. Over time, this creates multiple data files and metadata files as changes accumulate. You can set a time limit for how long to keep a reference when you create it.

Snapshot 84

Snapshot Metadata Data Lake Optimization 84

Cloudera

JUNE 2, 2021

As an important part of achieving better scalability, Ozone separates the metadata management among different services: . Ozone Manager (OM) service manages the metadata of the namespace such as volume, bucket and keys. Datanode service manages the metadata of blocks, containers and pipelines running on the datanode. .

Metadata 95

Metadata Snapshot Testing Management 95

Smart Data Collective

AUGUST 11, 2023

One of the issues that we need to be aware of is the role of phone metadata. Our Phone Metadata Can Be a Threat to Our Data Privacy Data privacy protections against government surveillance often focus on communications content and exclude communications metadata. This can lead to some serious data privacy concerns.

Metadata 96

Metadata IT Management 96

AWS Big Data

NOVEMBER 20, 2024

We’re excited to announce a new feature in Amazon DataZone that offers enhanced metadata governance for your subscription approval process. With this update, domain owners can define and enforce metadata requirements for data consumers when they request access to data assets. Key benefits The feature benefits multiple stakeholders.

Metadata 96

Metadata Data Governance Metrics Marketing 96

AWS Big Data

NOVEMBER 19, 2024

Solution overview By combining the powerful vector search capabilities of OpenSearch Service with the access control features provided by Amazon Cognito , this solution enables organizations to manage access controls based on custom user attributes and document metadata. Refer to Service Quotas for more details.

Management 98

Management Metadata Manufacturing Testing 98

AWS Big Data

DECEMBER 17, 2024

We have enhanced data sharing performance with improved metadata handling, resulting in data sharing first query execution that is up to four times faster when the data sharing producers data is being updated. Launch summary Following is the launch summary which provides the announcement links and reference blogs for the key announcements.

Data Lake 98

Data Lake Data Warehouse Data-driven Optimization 98

Cloudera

JANUARY 21, 2022

System metadata is reviewed and updated regularly. We’ve summarized the key security features of a CDP Private Cloud Base cluster and subsequent posts will go into more detail with reference implementation examples of all of the key features. . Auditing procedures keep track of who accesses the cluster (and how).

Data Processing 112

Data Processing Management Cost-Benefit Finance 112

O'Reilly on Data

JUNE 14, 2024

At the same time, Miso went about an in-depth chunking and metadata-mapping of every book in the O’Reilly catalog to generate enriched vector snippet embeddings of each work. If the original Answers release was a LLM-driven retrieval engine, today’s new version of Answers is an LLM-driven research engine (in the truest sense).

Metadata 287

Metadata Publishing Data-driven Modeling 287

Cloudera

JULY 15, 2021

All three will be quorums of Zookeepers and HDFS Journal nodes to track changes to HDFS Metadata stored on the Namenodes. In summary we have provided a reference for the tuning and configuration of the host resources in order to maximise the performance and security of your cluster. Networking .

Data Processing 102

Data Processing Metadata Testing Management 102

AWS Big Data

NOVEMBER 29, 2023

The Eightfold Talent Intelligence Platform integrates with Amazon Redshift metadata security to implement visibility of data catalog listing of names of databases, schemas, tables, views, stored procedures, and functions in Amazon Redshift. This post discusses restricting listing of data catalog metadata as per the granted permissions.

Metadata 111

Metadata Data Warehouse Analytics Data Analytics 111

Octopai

JANUARY 31, 2022

If you’re a mystery lover, I’m sure you’ve read that classic tale: Sherlock Holmes and the Case of the Deceptive Data, and you know how a metadata catalog was a key plot element. Let me tell you about metadata and cataloging.”. A metadata catalog, Holmes informed Guy, addresses all the benign reasons for inaccurate data.

Metadata 97

Metadata IT Unstructured Data IoT 97

AWS Big Data

NOVEMBER 19, 2024

Pricing and availability Amazon MWAA pricing dimensions remains unchanged, and you only pay for what you use: The environment class Metadata database storage consumed Metadata database storage pricing remains the same. Refer to Amazon Managed Workflows for Apache Airflow Pricing for rates and more details.

Metadata 111

Metadata Cost-Benefit Metrics Optimization 111

AWS Big Data

NOVEMBER 6, 2024

reduces the Amazon DynamoDB cost associated with KCL by optimizing read operations on the DynamoDB table storing metadata. KCL uses DynamoDB to store metadata such as shard-worker mapping and checkpoints. x benefits, refer to Use features of the AWS SDK for Java 2.x. Refer to Step 4 of Migrating from KCL 2.x x to KCL 3.x

Cost-Benefit 116

Cost-Benefit Metadata Optimization Publishing 116

AWS Big Data

DECEMBER 9, 2024

Heres how it works: As data streams in, it passes through a validation process Valid data is written directly to the table referred by downstream users Invalid or problematic data is redirected to a separate DLQ for later analysis and potential recovery The following screenshot shows this flow.

Data Quality 126

Data Quality Publishing Snapshot Data Lake 126

AWS Big Data

FEBRUARY 6, 2023

For instructions, refer to How to Set Up a MongoDB Cluster. Choose the table to view the schema and other metadata. Conclusion In this post, we showed how to set up an AWS Glue crawler to crawl over a MongoDB Atlas collection, gathering metadata and creating table records in the AWS Glue Data Catalog.

Metadata 98

Metadata Data Lake Machine Learning Big Data 98

AWS Big Data

DECEMBER 19, 2024

To learn more about working with events using EventBridge, refer to Events via Amazon EventBridge default bus. After you create the asset, you can add glossaries or metadata forms, but its not necessary for this post. We refer to this role as the instance-role throughout the post. Enter a name for the asset.

Publishing 97

Publishing Unstructured Data Metadata Data-driven 97

AWS Big Data

NOVEMBER 7, 2024

BladeBridge provides a configurable framework to seamlessly convert legacy metadata and code into more modern services such as Amazon Redshift. For more details, refer to the BladeBridge Analyzer Demo. Refer to this BladeBridge documentation to get more details on SQL and expression conversion.

Data Warehouse 105

Data Warehouse Reporting Big Data Data Lake 105

Rocket-Powered Data Science

MARCH 10, 2020

The book is awesome, an absolute must-have reference volume, and it is free (for now, downloadable from Neo4j ). Any node and its relationship to a particular node becomes a type of contextual metadata for that particular note. Graph Algorithms book. Context may include time, location, related events, nearby entities, and more.

Metadata 250

Metadata Machine Learning Prescriptive Analytics ROI 250

Cloudera

JANUARY 26, 2024

This will allow a data office to implement access policies over metadata management assets like tags or classifications, business glossaries, and data catalog entities, laying the foundation for comprehensive data access control. First, a set of initial metadata objects are created by the data steward.

Metadata 73

Metadata Data Governance Management Finance 73

erwin

JUNE 26, 2020

Organizations with particularly deep data stores might need a data catalog with advanced capabilities, such as automated metadata harvesting to speed up the data preparation process. Three Types of Metadata in a Data Catalog. The metadata provides information about the asset that makes it easier to locate, understand and evaluate.

Metadata 132

Metadata Cost-Benefit Measurement Data-driven 132

erwin

MARCH 30, 2020

Unraveling Data Complexities with Metadata Management. Metadata management will be critical to the process for cataloging data via automated scans. Essentially, metadata management is the administration of data that describes other data, with an emphasis on associations and lineage. Data lineage to support impact analysis.

Metadata 122

Metadata IT Data Governance Data Quality 122

AWS Big Data

MAY 29, 2024

Since its inception, Apache Kafka has depended on Apache Zookeeper for storing and replicating the metadata of Kafka brokers and topics. the Kafka community has adopted KRaft (Apache Kafka on Raft), a consensus protocol, to replace Kafka’s dependency on ZooKeeper for metadata management. For Metadata mode , select KRaft.

Metadata 114

Metadata Cost-Benefit Management Big Data 114

AWS Big Data

OCTOBER 11, 2023

The second streaming data source constitutes metadata information about the call center organization and agents that gets refreshed throughout the day. For the template and setup information, refer to Test Your Streaming Data Solution with the New Amazon Kinesis Data Generator. We use two datasets in this post.

Management 131

Management Metadata Analytics Dashboards 131

CIO Business Intelligence

SEPTEMBER 19, 2024

This enables companies to directly access key metadata (tags, governance policies, and data quality indicators) from over 100 data sources in Data Cloud, it said. Additional to that, we are also allowing the metadata inside of Alation to be read into these agents.”

Data Governance 123

Data Governance Metadata Unstructured Data Structured Data 123

AWS Big Data

SEPTEMBER 12, 2024

Along with the Glue Data Catalog’s automated compaction feature, these storage optimizations can help you reduce metadata overhead, control storage costs, and improve query performance. The Glue Data Catalog monitors tables daily, removes snapshots from table metadata, and removes the data files and orphan files that are no longer needed.

Optimization 129

Optimization Snapshot Metadata Metrics 129

AWS Big Data

NOVEMBER 17, 2023

These include internet-scale web and mobile applications, low-latency metadata stores, high-traffic retail websites, Internet of Things (IoT) and time series data, online gaming, and more. Table metadata, such as column names and data types, is stored using the AWS Glue Data Catalog. To create an S3 bucket, refer to Creating a bucket.

Visualization 115

Visualization Metadata Testing Internet of Things 115

O'Reilly on Data

MARCH 20, 2019

Data poisoning refers to someone systematically changing your training data to manipulate your model’s predictions. Watermarking is a term borrowed from the deep learning security literature that often refers to putting special pixels into an image to trigger a desired outcome from your model. Data poisoning attacks. Watermark attacks.

Modeling 272

Modeling Machine Learning Predictive Modeling Consulting 272

AWS Big Data

JUNE 17, 2024

Backup and restore architecture The backup and restore strategy involves periodically backing up Amazon MWAA metadata to Amazon Simple Storage Service (Amazon S3) buckets in the primary Region. Refer to the detailed deployment steps in the README file to deploy it in your own accounts. The steps are as follows: [1.a]

Strategy 111

Strategy Metadata Recreation/Entertainment Metrics 111

AWS Big Data

JULY 24, 2024

aoss:UpdateSecurityConfig – Modify a given SAML provider configuration, including the XML metadata. For more details, refer to Considerations. IdP Metadata by choosing the link on the Realm settings page. You need this metadata, when you create the SAML provider in OpenSearch Serverless. Choose Create SAML provider.

Dashboards 116

Dashboards Metadata Visualization Consulting 116

datapine

SEPTEMBER 29, 2022

Data quality refers to the assessment of the information you have, relative to its purpose and its ability to serve that purpose. While the digital age has been successful in prompting innovation far and wide, it has also facilitated what is referred to as the “data crisis” – low-quality data. 2 – Data profiling.

Data Quality 241

Data Quality Metrics Data-driven Management 241

AWS Big Data

NOVEMBER 3, 2023

Although we don’t cover optimizing your jobs for costs in this post, you can refer to Monitor and optimize cost on AWS Glue for Apache Spark to learn how to fine-tune your AWS Glue jobs for performance, efficiency ,and cost-optimization. Refer to Managing user access inside Amazon QuickSight to find your existing QuickSight users.

Metrics 115

Metrics Dashboards Metadata Visualization 115

AWS Big Data

OCTOBER 25, 2023

Solution overview Data and metadata discovery is one of the primary requirements in data analytics, where data consumers explore what data is available and in what format, and then consume or query it for analysis. But in the case of unstructured data, metadata discovery is challenging because the raw data isn’t easily readable.

Unstructured Data 133

Unstructured Data Metadata Management Analytics 133

AWS Big Data

DECEMBER 10, 2024

To learn more about this process, refer to Enabling SAML 2.0 Save the federation metadata XML file You use the federation metadata file to configure the IAM IdP in a later step. In the Single sign-on section , under SAML Certificates , choose Download for Federation Metadata XML. Save this file locally.

Sales 105

Sales Metadata Enterprise Testing 105

AWS Big Data

MARCH 22, 2024

Benchmark setup In our testing, we used the 3 TB dataset stored in Amazon S3 in compressed Parquet format and metadata for databases and tables is stored in the AWS Glue Data Catalog. When statistics aren’t available, Amazon EMR and Athena use S3 file metadata to optimize query plans. With Amazon EMR 6.10.0

Metadata 119

Metadata Statistics Broadcasting Optimization 119

AWS Big Data

JANUARY 24, 2024

Each storage format implements this functionality in slightly different ways; for a comparison, refer to Choosing an open table format for your transactional data lake on AWS. For more information, refer to Amazon S3: Allows read and write access to objects in an S3 Bucket.

Snapshot 126

Snapshot Data Lake Metadata Optimization 126