AWS Big Data

AUGUST 23, 2023

Since its release in January 2021, the OpenSearch project has released 14 versions through June 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 96

Snapshot Dashboards Visualization Metrics 96

AWS Big Data

JANUARY 24, 2024

These formats enable ACID (atomicity, consistency, isolation, durability) transactions, upserts, and deletes, and advanced features such as time travel and snapshots that were previously only available in data warehouses. For more information, refer to Amazon S3: Allows read and write access to objects in an S3 Bucket.

Snapshot 103

Snapshot Data Lake Metadata Optimization 103

AWS Big Data

OCTOBER 3, 2023

Apache Iceberg enables transactions on data lakes and can simplify data storage, management, ingestion, and processing. This means the data files in the data lake aren’t modified during the migration and all Apache Iceberg metadata files (manifests, manifest files, and table metadata files) are generated outside the purview of the data.

Data Lake 104

Data Lake Metadata Snapshot Recreation/Entertainment 104

AWS Big Data

MAY 24, 2023

To learn more about how to create an EMR cluster with Iceberg and use Amazon EMR Studio, refer to Use an Iceberg cluster with Spark and the Amazon EMR Studio Management Guide , respectively. In that case, we have to query the table with the snapshot-id corresponding to the deleted row. parquet") df.sortWithinPartitions("review_date").writeTo("dev.db.amazon_reviews_iceberg").append()

Data Lake 87

Data Lake Snapshot Metadata Optimization 87

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 112

Optimization Snapshot Data Lake Metadata 112

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 120

Data Lake Data Processing Metadata Snapshot 120

DataKitchen

AUGUST 8, 2023

On 20 July 2023, Gartner released the article “ Innovation Insight: Data Observability Enables Proactive Data Quality ” by Melody Chien. She sees Data Observability as an emerging technology in data engineering and management. It alerts data and analytics leaders to issues with their data before they multiply.

Data Quality 130

Data Quality Testing Snapshot Reporting 130