AWS Big Data

MARCH 2, 2023

Apache Iceberg is an open table format for very large analytic datasets, which captures metadata information on the state of datasets as they evolve and change over time. Apache Iceberg addresses customer needs by capturing rich metadata information about the dataset at the time the individual data files are created.

Data Lake 133

Data Lake Data Processing Metadata Snapshot 133

Smart Data Collective

AUGUST 25, 2020

Some of the benefits are detailed below: Optimizing metadata for greater reach and branding benefits. One of the most overlooked factors is metadata. Metadata is important for numerous reasons. Search engines crawl metadata of image files, videos and other visual creative when they are indexing websites.

Data mining 137

Data mining Metadata Big Data ROI 137

AWS Big Data

JUNE 10, 2024

When evolving such a partition definition, the data in the table prior to the change is unaffected, as is its metadata. Only data that is written to the table after the evolution is partitioned with the new definition, and the metadata for this new set of data is kept separately. Old metadata files are kept for history by default.

Data Lake 125

Data Lake Metadata Snapshot Analytics 125

AWS Big Data

APRIL 3, 2024

Iceberg tables maintain metadata to abstract large collections of files, providing data management features including time travel, rollback, data compaction, and full schema evolution, reducing management overhead. Snowflake integrates with AWS Glue Data Catalog to retrieve the snapshot location.

Data Lake 113

Data Lake Snapshot Metadata Data Architecture 113

Cloudera

FEBRUARY 22, 2022

Apache Iceberg is open source , and is developed through the Apache Software Foundation. In Iceberg, instead of listing O(n) partitions (directory listing at runtime) in a table for query planning, Iceberg performs an O(1) RPC to read the snapshot. It removes the load from the Metastore and Metastore backend database. .

Snapshot 110

Snapshot Metadata Cost-Benefit Data Architecture 110

AWS Big Data

DECEMBER 9, 2024

For our heater example, Icebergs change log view would allow us to effortlessly retrieve a timeline of all price changes, complete with timestamps and other relevant metadata, as shown in the following table. Anytime when you need SCD Type-2 snapshot of your Iceberg table, you can create the corresponding representation.

Snapshot 64

Snapshot Data Warehouse Data Lake Data Quality 64

AWS Big Data

OCTOBER 3, 2023

Iceberg tables store metadata in manifest files. As the number of data files increase, the amount of metadata stored in these manifest files also increases, leading to longer query planning time. The query runtime also increases because it’s proportional to the number of data or metadata file read operations.

Optimization 125

Optimization Snapshot Data Lake Metadata 125

AWS Big Data

MAY 24, 2023

RIO is really great",date("2023-04-06"),2023)""") You can check the new snapshot is created after this append operation by querying the Iceberg snapshot: spark.sql("""SELECT * FROM dev.db.amazon_reviews_iceberg.snapshots""").show() In that case, we have to query the table with the snapshot-id corresponding to the deleted row.

Data Lake 96

Data Lake Snapshot Metadata Optimization 96

erwin

JULY 2, 2020

His team also is using the software to manage roadmaps in their main transformation programs. They’re static snapshots of a diagram at some point in time. In his experience, applying governance to metadata and creating mappings has helped different stakeholders gain a good understanding of the data they use to do their work.

Enterprise 122

Enterprise Modeling Metadata Data Governance 122

AWS Big Data

NOVEMBER 22, 2023

AWS Glue Crawler is a component of AWS Glue, which allows you to create table metadata from data content automatically without requiring manual definition of the metadata. AWS Glue crawlers updates the latest metadata file location in the AWS Glue Data Catalog that AWS analytical engines can directly use.

Data Lake 112

Data Lake Snapshot Metadata Optimization 112

AWS Big Data

JUNE 5, 2023

If you also needed to preserve the history of DAG runs, you had to take a backup of your metadata database and then restore that backup on the newly created environment. Amazon MWAA manages the entire upgrade process, from provisioning new Apache Airflow versions to upgrading the metadata database.

Snapshot 91

Snapshot Metadata Testing Data-driven 91

O'Reilly on Data

MARCH 20, 2019

Version control: Production model scoring code should be managed and version-controlled—just like any other mission-critical software asset. Machine learning in the research and development environment is highly dependent on a diverse ecosystem of open source software packages. Disparate impact analysis: see section 1.

Modeling 278

Modeling Machine Learning Predictive Modeling Consulting 278

AWS Big Data

JULY 3, 2023

With scalable metadata indexing, Apache Iceberg is able to deliver performant queries to a variety of engines such as Spark and Athena by reducing planning time. To avoid look-ahead bias in backtesting, it’s essential to create snapshots of the data at different points in time. Tag this data to preserve a snapshot of it.

Snapshot 101

Snapshot Data Lake Testing Strategy 101

AWS Big Data

JUNE 9, 2023

When records are updated or deleted, the changed information is stored in new files, and the files for a given record are retrieved during an operation, which is then reconciled by the open table format software. Offers different query types , allowing to prioritize data freshness (Snapshot Query) or read performance (Read Optimized Query).

Data Lake 129

Data Lake Metadata Statistics Optimization 129

AWS Big Data

AUGUST 23, 2023

With OpenSearch Service managed domains, you specify a hardware configuration and OpenSearch Service provisions the required hardware and takes care of software patching, failure recovery, backups, and monitoring. Snapshot management By default, OpenSearch Service takes hourly snapshots of your data with a retention time of 14 days.

Snapshot 98

Snapshot Dashboards Visualization Metrics 98

AWS Big Data

MAY 10, 2023

The cluster manager performs critical coordination tasks like metadata management and cluster formation, and orchestrates a few background operations like snapshot and shard placement. We concluded that allowing writes in this state should still be safe as long as it doesn’t need to update the cluster metadata.

Snapshot 114

Snapshot Testing Metadata Management 114

AWS Big Data

JULY 20, 2023

Expiring old snapshots – This operation provides a way to remove outdated snapshots and their associated data files, enabling Orca to maintain low storage costs. Metadata tables offer insights into the physical data storage layout of the tables and offer the convenience of querying them with Athena version 3.

Data Lake 97

Data Lake Analytics Snapshot Data Quality 97

Cloudera

SEPTEMBER 1, 2020

See the snapshot below. HDFS also provides snapshotting, inter-cluster replication, and disaster recovery. . By encapsulating Kerberos, it eliminates the need for client software or client configuration, simplifying the access model. Coordinates distribution of data and metadata, also known as shards. Restore collection.

Snapshot 71

Snapshot Unstructured Data Dashboards Interactive 71

IBM Big Data Hub

JUNE 7, 2023

With IBM Storage Defender, IBM Storage software capabilities covering inventory, threat detection, data protection, Safeguarded Copy and recovery orchestration are available to clients with simple consumption-based credit licensing.

Snapshot 77

Snapshot Metadata Enterprise Testing 77

AWS Big Data

JANUARY 8, 2024

Stream Processing – An application created with Amazon Managed Service for Apache Flink can read the records from the data stream to detect and clean any errors in the time series data and enrich the data with specific metadata to optimize operational analytics. When building event-driven microservices, customers want to achieve 1.

Analytics 130

Analytics IoT Data-driven Snapshot 130

AWS Big Data

NOVEMBER 6, 2023

You can see the time each task spends idling while waiting for the Redshift cluster to be created, snapshotted, and paused. Airflow will cache variables and connections locally so that they can be accessed faster during DAG parsing, without having to fetch them from the secrets backend, environments variables, or metadata database.

Metrics 121

Metrics Metadata Snapshot Management 121

AWS Big Data

APRIL 3, 2024

By selecting the corresponding asset, you can understand its content through the readme, glossary terms , and technical and business metadata. By analyzing the historical report snapshot, you can identify areas for improvement, implement changes, and measure the effectiveness of those changes. onData(df).useRepository(metricsRepository).addCheck(

Data Quality 111

Data Quality Visualization Metadata Metrics 111

AWS Big Data

JANUARY 17, 2024

The key idea behind incremental queries is to use metadata or change tracking mechanisms to identify the new or modified data since the last query. The following are some highlighted steps: Run a snapshot query. %%sql Aditya Shah is a Software Development Engineer at AWS. You can now follow the steps in the notebook.

Data Lake 113

Data Lake Snapshot Big Data Data-driven 113

Wayne Yaddow

MARCH 14, 2025

With version control integration and automated testing, dbt Core moves pipeline verification closer to a software engineering discipline, incorporating best practices like code reviews, CI/CD, and continuous datatesting. Workaround: Implement custom metadata tracking scripts or use dbt Clouds freshness monitoring.

Data Transformation 52

Data Transformation Testing Unstructured Data Data Quality 52

Alation

JULY 28, 2022

There are tools to replicate and snapshot data, plus tools to scale and improve performance.” Cloud data warehouses offer the potential to solve larger and more complex business data problems that could not be addressed via on-premises software and hardware. Yet the cloud, according to Sacolick, doesn’t come cheap. “A

Data Warehouse 69

Data Warehouse Cost-Benefit Data-driven Data Governance 69

CIO Business Intelligence

MARCH 5, 2025

Decision Audit Trail a comprehensive logging strategy that records key data points (inputs, outputs, model version, explanation metadata, etc.) Model Registry and Versioning centralized repository that tracks all models, including versions, training data snapshots, hyperparameters, performance metrics and deployment status.

Risk 121

Risk Risk Management Measurement Modeling 121

AWS Big Data

JANUARY 27, 2023

The AWS Glue Data Catalog provides a uniform repository where disparate systems can store and find metadata to keep track of data in data silos. With unified metadata, both data processing and data consuming applications can access the tables using the same metadata. For metadata read/write, Flink has the catalog interface.

Data Lake 73

Data Lake Metadata Business Analysis Data-driven 73

AWS Big Data

NOVEMBER 29, 2023

dbt lets data engineers quickly and collaboratively deploy analytics code following software engineering best practices like modularity, portability, continuous integration and continuous delivery (CI/CD), and documentation. He is responsible for building software artifacts to help customers. He works based in Tokyo, Japan.

Data Lake 120

Data Lake Management Metrics Data Warehouse 120

Alation

AUGUST 26, 2021

It includes intelligence about data, or metadata. The earliest DI use cases leveraged metadata — EG, popularity rankings reflecting the most used data — to surface assets most useful to others. Again, metadata is key. Data Intelligence and Metadata. Data intelligence is fueled by metadata.

Metadata 64

Metadata Data Governance Dashboards Software 64

AWS Big Data

NOVEMBER 21, 2024

The AWS Glue Data Catalog supports automatic table optimization of Apache Iceberg tables, including compaction , snapshots, and orphan data management. Similarly, the orphan file deletion process scans the table metadata and the actual data files, identifies the unreferenced files, and deletes them to reclaim storage space.

Optimization 110

Optimization Snapshot Metadata Software 110

AWS Big Data

OCTOBER 23, 2024

Apache HBase is an open source, non-relational distributed database developed as part of the Apache Software Foundation’s Hadoop project. And during HBase migration, you can export the snapshot files to S3 and use them for recovery. HBase provided by other cloud platforms doesn’t support snapshots.

Snapshot 111

Snapshot Recreation/Entertainment Testing Data Processing 111

AWS Big Data

FEBRUARY 18, 2025

When Firehose delivers data to the S3 table, it uses the AWS Glue Data Catalog to store and manage table metadata. This metadata includes schema information, partition details, and file locations, enabling seamless data discovery and querying across AWS analytics services.

Snapshot 77

Snapshot Optimization Data Lake Metadata 77

DataKitchen

JANUARY 23, 2023

Five on DataOps Observability : DataOps Observability is the ability to understand the state and behavior of data and the software and hardware that carries and transforms it as it flows through systems. Data lineage is often considered static because it is typically based on snapshots of data and metadata taken at a specific time.

Testing 130

Testing Data Governance Data Quality Data-driven 130

DataKitchen

AUGUST 8, 2023

Data Observability leverages five critical technologies to create a data awareness AI engine: data profiling, active metadata analysis, machine learning, data monitoring, and data lineage. Data Lineage, a form of static analysis , is like a snapshot or a historical record describing data assets at a specific time.

Data Quality 130

Data Quality Testing Snapshot Reporting 130