beam
Apache Hive
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beam | Apache Hive | |
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30 | 14 | |
7,445 | 5,296 | |
1.1% | 1.2% | |
10.0 | 9.7 | |
5 days ago | about 18 hours ago | |
Java | Java | |
Apache License 2.0 | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
beam
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Ask HN: Does (or why does) anyone use MapReduce anymore?
The "streaming systems" book answers your question and more: https://www.oreilly.com/library/view/streaming-systems/97814.... It gives you a history of how batch processing started with MapReduce, and how attempts at scaling by moving towards streaming systems gave us all the subsequent frameworks (Spark, Beam, etc.).
As for the framework called MapReduce, it isn't used much, but its descendant https://beam.apache.org very much is. Nowadays people often use "map reduce" as a shorthand for whatever batch processing system they're building on top of.
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beam VS quix-streams - a user suggested alternative
2 projects | 7 Dec 2023
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Releasing Temporian, a Python library for processing temporal data, built together with Google
Flexible runtime ☁️: Temporian programs can run seamlessly in-process in Python, on large datasets using Apache Beam.
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Real Time Data Infra Stack
Apache Beam: Streaming framework which can be run on several runner such as Apache Flink and GCP Dataflow
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Google Cloud Reference
Apache Beam: Batch/streaming data processing 🔗Link
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Apache Beam Moved From Jira to GitHub Issues - You Can Too!
The Apache Beam community recently migrated to GitHub Issues after years of using Jira as our issue tracker. This post details why we made the move, how we did it, and how to decide if migrating is appropriate for your project.
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A trick to have arbitrary infix operators in Python
Apache Beam works this way. Code sample: https://github.com/apache/beam/blob/master/examples/multi-la...
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Jinja2 not formatting my text correctly. Any advice?
ListItem(name='Apache Beam', website='https://beam.apache.org/', category='Batch Processing', short_description='Apache Beam is an open source unified programming model to define and execute data processing pipelines, including ETL, batch and stream processing'),
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The Data Engineer Roadmap 🗺
Apache Beam
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Frameworks of the Future?
I asked a similar question in a different community, and the closest they came up with was the niche Apache Beam and the obligatory vague hand-waving about no-code systems. So, maybe DEV seeming to skew younger and more deliberately technical might get a better view of things? Is anybody using a "Framework of the Future" that we should know about?
Apache Hive
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Apache Iceberg as storage for on-premise data store (cluster)
Trino or Hive for SQL querying. Get Trino/Hive to talk to Nessie.
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In One Minute : Hadoop
Hive, A data warehouse infrastructure that provides data summarization and ad hoc querying.
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DeWitt Clause, or Can You Benchmark %DATABASE% and Get Away With It
Apache Drill, Druid, Flink, Hive, Kafka, Spark
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Apache Spark, Hive, and Spring Boot — Testing Guide
In this article, I'm showing you how to create a Spring Boot app that loads data from Apache Hive via Apache Spark to the Aerospike Database. More than that, I'm giving you a recipe for writing integration tests for such scenarios that can be run either locally or during the CI pipeline execution. The code examples are taken from this repository.
- Apache Hive in the vein!
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Jinja2 not formatting my text correctly. Any advice?
ListItem(name='Apache Hive', website='https://hive.apache.org/', category='Interactive Query', short_description='Apache Hive is a data warehouse software project built on top of Apache Hadoop for providing data query and analysis. Hive gives an SQL-like interface to query data stored in various databases and file systems that integrate with Hadoop.'),
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Understanding SQL Dialects
Apache Hive takes in a specific SQL dialect and converts it to map-reduce.
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The Data Engineer Roadmap 🗺
Apache Hive
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Open Source SQL Parsers
Apache Calcite is a popular parser/optimizer that is used in popular databases and query engines like Apache Hive, BlazingSQL and many others.
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Word-Aligned Bloom Filters
> whether this would really work out in most workloads
> just because it keeps the cache-lines hotter and less likely to be evicted.
Okay, so keeping cache for a bloom filter problem is real - but the real force evicting memory out of the cache line is the next row-group you read + all the other stuff you have to do when you implement this in a database product.
So the two things I work with, Apache Hive and Apache Impala switched to a blocked bloom filter at different points in time.
Hive BloomKFilter - https://github.com/apache/hive/blob/master/storage-api/src/j...
Impala/Kudu one - https://github.com/apache/impala/blob/master/be/src/kudu/uti...
The C++ one also has an AVX specialization, while the Java one relies on the JVM to do it (not always) - https://github.com/apache/impala/blob/master/be/src/kudu/uti...
We ran a lot of trivial benchmarks and several benchmarks where the shuffle-join (not sort-merge, this is just a partitioned hash join) generates a bloom filter (a semijoin) before sending rows out and the 1-cache line version won out when the bloom filter went slightly over the 1 Million + 5% rate [1].
The regular bloom filter went from (38ns -> 108ns for 1k -> 1m items), while the BloomK stuck at (27ns) despite making room for a million times more items in the bloom. The bloom-1 (which is the 64bit version) underperformed on accuracy (was ~2x faster at 16ns per op, but worse at filtering out items).
[1] - https://github.com/prasanthj/bloomfilter/tree/master/benchma...
What are some alternatives?
superset - Apache Superset is a Data Visualization and Data Exploration Platform
ObjectBox Java (Kotlin, Android) - Java and Android Database - fast and lightweight without any ORM
HikariCP - 光 HikariCP・A solid, high-performance, JDBC connection pool at last.
Apache Phoenix - Apache Phoenix
Flyway - Flyway by Redgate • Database Migrations Made Easy.
Presto - The official home of the Presto distributed SQL query engine for big data
Apache Arrow - Apache Arrow is a multi-language toolbox for accelerated data interchange and in-memory processing
Spring Data JPA - Simplifies the development of creating a JPA-based data access layer.
Querydsl - Unified Queries for Java
Realm - Realm is a mobile database: a replacement for SQLite & ORMs
jOOQ - jOOQ is the best way to write SQL in Java