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 87

Metadata Statistics Broadcasting Optimization 87

Ontotext

APRIL 27, 2023

The seminar was organized by the European Broadcasting Union (EBU) and the respective community that is dedicated to foster knowledge sharing and learning on data-related projects, such as metadata and AI. To address this issue, Ontotext, an AI company and a member of the vera.ai

Technology 52

Technology Metadata Broadcasting Visualization 52

Rocket-Powered Data Science

JULY 19, 2023

In some cases, the precursor can occur sufficiently in advance of the tidal wave’s predicted arrival at inhabited shores, thereby enabling early warnings to be broadcasted. A cognitive person is curious about odd things that they see and hear—things or circumstances or behaviors that seem out of context, unusual, and surprising.

Data-driven 186

Data-driven Enterprise Analytics Machine Learning 186

AWS Big Data

SEPTEMBER 27, 2023

The leader node is the authority on the metadata in the cluster, which is called cluster state. Any changes to the cluster state are processed by the leader node and broadcasted to all of the nodes in the cluster. Amazon OpenSearch clusters are comprised of data nodes and cluster manager nodes.

Management 87

Management Broadcasting Metadata Software 87

Smart Data Collective

AUGUST 5, 2021

Along with the ability to implement ACID transactions and scalable metadata handling, Delta Lakes can also unify the streaming and batch data processing”. . The schema of the metadata is as follows: Column Type Description format string Format of the table, that is, “delta”. Advantages of using Delta Lakes.

Data Processing 143

Data Processing Metadata Broadcasting Statistics 143

AWS Big Data

JANUARY 10, 2024

These systems rely on an active leader node to identify failures or delays and then broadcast this information to all nodes. OpenSearch Service utilizes an internal node-to-node communication protocol for replicating write traffic and coordinating metadata updates through an elected leader.

Metadata 93

Metadata Broadcasting Data Processing Modeling 93

Cloudera

JANUARY 15, 2021

Consider the case of a broadcast hash join between a small table and a big table where predicate pushdown is not available. Broadcast the generated hash table to all worker nodes. COMPUTE STATS were run on all tables to help gather information about the table metadata and help Impala optimize the query plan. Join Queries.

Optimization 70

Optimization Broadcasting Testing Metadata 70