AWS Big Data

NOVEMBER 22, 2024

In this post, we will introduce a new mechanism called Reindexing-from-Snapshot (RFS), and explain how it can address your concerns and simplify migrating to OpenSearch. Documents are parsed from the snapshot and then reindexed to the target cluster, so that performance impact to the source clusters is minimized during migration.

Snapshot 98

Snapshot Metadata Recreation/Entertainment Data Processing 98

AWS Big Data

MARCH 4, 2024

However, altering schema and table partitions in traditional data lakes can be a disruptive and time-consuming task, requiring renaming or recreating entire tables and reprocessing large datasets. Apache Iceberg manages these schema changes in a backward-compatible way through its innovative metadata table evolution architecture.

Snapshot 132

Snapshot Data Lake Metadata Recreation/Entertainment 132

AWS Big Data

OCTOBER 3, 2023

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. In this method, the metadata are recreated in an isolated environment and colocated with the existing data files.

Data Lake 122

Data Lake Metadata Snapshot Recreation/Entertainment 122

AWS Big Data

JUNE 27, 2024

With built-in features such as automated snapshots and cross-Region replication, you can enhance your disaster resilience with Amazon Redshift. To develop your disaster recovery plan, you should complete the following tasks: Define your recovery objectives for downtime and data loss (RTO and RPO) for data and metadata.

Snapshot 93

Snapshot Data Warehouse Data Processing Strategy 93

AWS Big Data

JUNE 9, 2023

Iceberg doesn’t optimize file sizes or run automatic table services (for example, compaction or clustering) when writing, so streaming ingestion will create many small data and metadata files. Offers different query types , allowing to prioritize data freshness (Snapshot Query) or read performance (Read Optimized Query).

Data Lake 130

Data Lake Metadata Statistics Optimization 130

Cloudera

MARCH 23, 2022

The table information (such as schema, partition) is stored as part of the metadata (manifest) file separately, making it easier for applications to quickly integrate with the tables and the storage formats of their choice. Iceberg, on the other hand, is an open table format that works with open file formats to avoid this coupling.

Metadata 92

Metadata Data Architecture Machine Learning Cost-Benefit 92

AWS Big Data

OCTOBER 23, 2024

And during HBase migration, you can export the snapshot files to S3 and use them for recovery. Additionally, we deep dive into some key challenges faced during migrations, such as: Using HBase snapshots to implement initial migration and HBase replication for real-time data migration.

Snapshot 119

Snapshot Recreation/Entertainment Testing Data Processing 119