Remove Bytes Remove Coding Remove Metadata
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AVIF for Next-Generation Image Coding

Netflix Tech

The goal is to have the compressed image look as close to the original as possible while reducing the number of bytes required. Brief overview of image coding formats The JPEG format was introduced in 1992 and is widely popular. This is followed by quantization and entropy coding. Advanced Video Coding ( AVC ) format.

Coding 89
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Open-Sourcing AvroTensorDataset: A Performant TensorFlow Dataset For Processing Avro Data

LinkedIn Engineering

An Avro file is formatted with the following bytes: Figure 1: Avro file and data block byte layout The Avro file consists of four “magic” bytes, file metadata (including a schema, which all objects in this file must conform to), a 16-byte file-specific sync marker, and a sequence of data blocks separated by the file’s sync marker.

Datasets 102
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Improving Efficiency Of Goku Time Series Database at Pinterest (Part?—?1)

Pinterest Engineering

The bucket in itself is actually nothing but a collection of SST files holding all the time series data and metadata for the corresponding bucket size. See the graph below, which shows the compaction read and write bytes on a cluster when it is bootstrapping for the first time. The bucket id is unix time divided by bucket size.

Database 111
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MezzFS?—?Mounting object storage in Netflix’s media processing platform

Netflix Tech

This file includes: Metadata ?—?This That is, all mounted files that were opened and every single byte range read that MezzFS received. Finally, MezzFS will record various statistics about the mount, including: total bytes downloaded, total bytes read, total time spent reading, etc. File operations ?—?All Actions ?—?MezzFS

Media 88
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Deploying Kafka Streams and KSQL with Gradle – Part 2: Managing KSQL Implementations

Confluent

We’ll demonstrate using Gradle to execute and test our KSQL streaming code, as well as building and deploying our KSQL applications in a continuous fashion. The first requirement to tackle: how to express dependencies between KSQL queries that exist in script files in a source code repository. Managing KSQL dependencies.

Kafka 96
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Apache Ozone Fault Injection Framework

Cloudera

This framework does not require any code changes to the system-under-test that is being validated. One key part of the fault injection service is a very lightweight passthrough fuse file system that is used by Ozone for storing all its persistent data and metadata. No changes to Ozone code required for simulating failures.

Hadoop 96
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How Netflix microservices tackle dataset pub-sub

Netflix Tech

Datasets themselves are of varying size, from a few bytes to multiple gigabytes. Each version contains metadata (keys and values) and a data pointer. You can think of a data pointer as special metadata that points to where the actual data you published is stored. Direct data pointers are automatically replicated globally.