Towards Data Science

MARCH 5, 2024

Like a dragon guarding its treasure, each byte stored and each query executed demands its share of gold coins. Join as we journey through the depths of cost optimization, where every byte is a precious coin. It is also possible to set a maximum for the bytes billed for your query. Photo by Konstantin Evdokimov on Unsplash ?

Bytes 69

Bytes Google Cloud Cloud Storage Utilities 69

Engineering at Meta

MAY 22, 2024

Challenges Large packet size One of the main challenges is the size of the Kyber768 public key share, which is 1184 bytes. This is close to the typical TCP/IPv6 maximum segment size (MSS) of 1440 bytes, but is still fine for a full TLS handshake. However, the key size becomes an issue during TLS resumption.

Bytes 105

Bytes Algorithm Coding Systems 105

Rock the JVM

DECEMBER 17, 2023

The UDP header is fixed at 8 bytes and contains a source port, destination port, the checksum used to verify packet integrity by the receiving device, and the length of the packet which equates to the sum of the payload and header. flip () println ( s "[server] I've received ${content.limit()} bytes " + s "from ${clientAddress.toString()}!

Scala 90

Scala Bytes Java Coding 90

LinkedIn Engineering

JUNE 15, 2023

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

Datasets Bytes Process Data Ingestion 102

Engineering at Meta

FEBRUARY 20, 2024

In the new representation , the first four bytes of the view object always contain the string size. Otherwise, a prefix of the string is stored in the next four bytes, followed by the buffer ID (StringViews can contain multiple data buffers) and the offset in that data buffer. first writing StringView at position 2, then 0 and 1).

Data Management 99

Data Management Bytes Management Datasets 99

U-Next

MARCH 16, 2023

Input and Output Streams: An input stream of bytes is represented by the abstract superclass InputStream of the java.io package’s OutputStream class is the abstract superclass that describes an output bytes stream. The next byte accessible as stream int is returned by this procedure.

Java 98

Java Bytes Programming Language Programming 98

Cloudera

MARCH 2, 2022

For instance, in both the struct s above the largest member is a pointer of size 8 bytes. Total size of the Bucket is 16 bytes. Similarly, the total size of DuplicateNode is 24 bytes. However 12 bytes is not a valid size of Bucket , as it needs to be a multiple of 8 bytes (the size of the largest member of the struct ).

Data Warehouse 89

Data Warehouse Bytes Data Business Intelligence 89

Pinterest Engineering

NOVEMBER 22, 2023

See the graph below, which shows the compaction read and write bytes on a cluster when it is bootstrapping for the first time. Figure 10: compaction read and write bytes showing non zero values as soon as host starts up. However, we observed compaction starting as soon as SSTs were getting ingested.

Database 108

Database Bytes Kafka Architecture 108

Tweag

NOVEMBER 22, 2023

rwxr-xr-x 1 jherland users 31560 Jan 1 00:00 hello.with-g We can see that the debug symbols add an extra (31560 - 8280 =) 23280 bytes (or almost 300%) to the final executable. gnu_debuglink ) has been added, and comparing the file sizes we see that this costs a modest 96 bytes. compared to hello.default ). What is removed?

Bytes 122

Bytes Coding Building Project 122

Confluent

SEPTEMBER 24, 2021

This release includes a major upgrade to ksqlDB’s foreign-key joins, the new data type BYTES, and a new ARRAY_CONCAT function. We’re pleased to announce ksqlDB 0.21.0! All of these features […].

Bytes 140

Bytes Data Process 140

Lyft Engineering

MARCH 11, 2024

The diff_bytes is 0 now! We now need to reset sequences in, which we accomplished with the following script: [link] This ensures that the sequence starts from the last entry of the individual tables.

Bytes 79

Bytes PostgreSQL AWS Database 79

Tweag

JANUARY 18, 2023

reading and writing to a byte stream). Say we have some arbitrary Python class, a first approximation may be to define encode and decode methods: from typing import Self class MyClass : def encode ( self ) - > bytes : # Implementation goes here. classmethod def decode ( cls , data : bytes ) - > Self : # Implementation goes here.

Python 102

Python Bytes Software Engineer Software Engineering 102

Engineering at Meta

APRIL 17, 2023

It computes ingress and egress total bytes and ingress ECN-marked bytes from the lengths and CE bits of the packets. Millisampler collects a variety of metrics. Millisampler also sounds TTLd marked retransmits. Millisampler uses a 128-bit sketch to estimate the number of active (incoming and outgoing) connections.

Bytes 113

Bytes Transportation Data Collection Coding 113

DoorDash Engineering

JANUARY 16, 2024

This led us to use a number of observability tools, including VPC flow logs , ebpf agent metrics , and Envoy networking bytes metrics to rectify the situation. Nonetheless, combining network bytes metrics from different sources can be enough to identify hotspots that, when addressed, can make a material dent in usage and cost.

Bytes 84

Bytes Cloud Management PostgreSQL 84

Cloudyard

FEBRUARY 12, 2024

As per the definition: RETAINED_FOR_CLONE_BYTES: Bytes owned by (and billed to) this table that are retained after deletion because they are referenced by one or more clones of this table. Retained For Cloned Bytes So till the time your CLONE table is available you have to pay the storage cost even the original table is dropped.

Bytes 52

Bytes Utilities Database Systems 52

Netflix Tech

DECEMBER 14, 2020

Figure 2: Visualizing Audio Throughput and Thread Handler Timing The orange line is the rate that data moved from the streaming buffer into the Android audio system, in bytes/millisecond. You can see three distinct behaviors in this chart: The two, tall spiky parts where the data rate reaches 500 bytes/ms.

Bytes 142

Bytes Engineering Coding Manufacturing 142

Engineering at Meta

JANUARY 26, 2023

Chart 2: Bytes logged per second via Legacy versus Tulip. We can see that while the number of logging schemas remained roughly the same (or saw some organic growth), the bytes logged saw a significant decrease due to the change in serialization format. Chart 1: Logging schemas using Legacy versus Tulip.

Bytes 105

Bytes Data Engineering Coding 105

Netflix Tech

NOVEMBER 9, 2022

a contiguous chunk of data (typically 64 bytes on x86 systems) transferred to and from the cache. Note that since the cache line size is 64 bytes and the pointer size is 8 bytes, we have a 1 in 8 chance of these fields falling on separate cache lines, and a 7 in 8 chance of them sharing a cache line.

Bytes 145

Bytes Java Utilities AWS 145

Cloudera

JANUARY 17, 2024

By using component_name and “Hello World Prometheus,” we’re monitoring the bytes received aggregated by the entire process group and therefore the flow. Select the nifi_amount_bytes_received metric. Use the label filters to narrow down the component in the flow.

Bytes 106

Bytes Architecture Building Designing 106

DoorDash Engineering

AUGUST 15, 2023

We also have an unmarshalling function to convert the raw bytes from the kernel into our structure. sk) { return 0; } u64 key = (u64)sk; struct source *src; src = bpf_map_lookup_elem(&socks, &key); When capturing the connection close event, we include how many bytes were sent and received over the connection.

Bytes 84

Bytes PostgreSQL Coding Database 84

Workfall

SEPTEMBER 26, 2023

We’re taking in 16 bytes of data at a time from the stream. This function will provide basic units of data in the form of raw bytes. These bytes can then be converted into a readable JSON format. This will transfer information in one go over an HTTP connection from the server to the client.

Python 85

Python Bytes Coding Project 85

Scott Logic

APRIL 5, 2024

It simply takes a payload in bytes and applies the Sustainable Web Design (SWD) method (by default and the focus of this article) to estimate the energy used to move that data from a data centre to the user’s device. js is a javascript library that returns an estimated CO2e value for a web page. Using the CO2.js

Bytes 52

Bytes Systems Designing Data Storage 52

ProjectPro

JANUARY 24, 2023

Numeric data consists of four sub-types: Integer type (INT64) Numeric type (NUMERIC DECIMAL) Bignumeric type (BIGNUMERIC BIGDECIMAL) Floating point type (FLOAT64) BYTES Although they work with raw bytes rather than Unicode characters, BYTES also represent variable-length data.

Bytes 52

Bytes Google Cloud Data Warehouse Datasets 52

Knowledge Hut

MARCH 7, 2024

quintillion bytes (or 2.5 With the rise in opportunities related to Big Data, challenges are also bound to increase. Below are the 5 major Big Data challenges that enterprises face in 2024: 1. The Need for More Trained Professionals Research shows that since 2018, 2.5 exabytes) of information is being generated every day.

Big Data 98

Big Data Bytes Data Governance Raw Data 98

Netflix Tech

OCTOBER 8, 2024

Cost Efficiency : Reducing the cost per byte and per operation to optimize long-term retention while minimizing infrastructure expenses, which can amount to millions of dollars for Netflix. Handling Bursty Traffic : Managing significant traffic spikes during high-demand events, such as new content launches or regional failovers.

Bytes 94

Bytes Datasets Metadata Data 94

Grouparoo

MAY 13, 2021

However, the the most popular text encoding ( Latin1 or utf8 ) on the most popular MySQL database engine ( innodb ) assumed that 3 bytes was enough to store every character 2 , and once utf8mb4 came along with characters like ? 4 bytes were needed to store each character. Specifically, 767/4 = 191 characters!

Database 52

Database Bytes MySQL Database-centric 52

Ripple Engineering

AUGUST 19, 2021

Each hash is 256 bits—that's 32 bytes—and each shared pointer is 16 bytes. That means that every time the sparse representation doesn't leave empty space for a nonexistent child that the naive, dense implementation would have, you save 48 bytes. This saves 8 bytes for every inner node.

Bytes 52

Bytes Coding Designing Manufacturing 52

Netflix Tech

SEPTEMBER 24, 2021

The index file keeps track of the physical location (URL) of each chunk and also keeps track of the physical location (URL + byte offset + size) of each video frame to facilitate downstream processing. What happens when the packager references bytes that have already been uploaded (e.g. when it updates the ‘mdat’ size)?

Cloud 96

Cloud Bytes Cloud Storage Media 96

Engineering at Meta

SEPTEMBER 12, 2023

We needed to turn this 8-byte write vulnerability into something useful for an attacker. This is important because it means we can use the 8-byte write primitive to corrupt and control its value. Any VR application can trigger this vulnerability by sending a specially crafted SetPerformanceIdealFeatureState Runtime IPC message.

Bytes 132

Bytes Coding Programming Process 132

Snowflake

FEBRUARY 27, 2024

For example, you can specify billing events in your app code and charge consumers based entirely on their usage of your application. This is a flexible, usage-based pricing model to allow providers to price-to-value their applications.

Bytes 101

Bytes Electronics Banking Data 101

InData Labs

SEPTEMBER 23, 2021

quintillion bytes of data that people create every day is predominantly unstructured data. Today, digitization penetrates all spheres of business. Whether it is audio, video or text, big data – if meticulously collected, recognized, and processed – can generate business value through leveraging state-of-the-art technologies.

Bytes 52

Bytes Unstructured Data Big Data Data 52

Snowflake

JUNE 20, 2024

If there is a substantial amount of extra code files or the total size (in byte) of the files being scanned is extremely large, the Snowpark Migration Accelerator could run out of internal resources on the machine processing the code. For conversion, if you’re just getting started, start small.

Data Engineering 92

Data Engineering Data Engineer Scala Engineering 92

Pinterest Engineering

FEBRUARY 23, 2023

How Does HTTP/3 Help HTTP/3 is a modern HTTP protocol that has many advantages compared to HTTP/2, including but not limited to: No TCP head of line blocking problem in comparison to HTTP/2 Connection migration across IP addresses, which is good for mobile use cases Able to change/tune Lost detection and Congestion control Reduced connection time (0-RTT, (..)

Bytes 132

Bytes Media Software Engineer Software Engineering 132

Data Engineering Weekly

DECEMBER 3, 2023

link] byte[array]: Doing range gets on cloud storage for fun and profit Cloud blob storage like S3 has become the standard for storing large volumes of data, yet we have not talked about how optimal its interfaces are. Rebalancing, the awkward middle child.

Data Engineering 70

Data Engineering Data Engineer Engineering Bytes 70

Knowledge Hut

MAY 20, 2024

The morning newspaper, the giant billboard on your drive to work, the elevator warning sound byte and the endless other messages you receive via different mediums, all inherently have the same objective – communicating a message.

Bytes 52

Bytes Media Project Building 52

Netflix Tech

MARCH 5, 2024

We paid particular attention to deallocation of direct byte buffers, but we haven’t seen any impact thus far. Except in a couple of cases, there’s been no need to lower the maximum heap size to allow for more headroom, and those were services with greater than average native memory needs.

Java 93

Java Bytes Utilities Metadata 93

Tweag

APRIL 19, 2023

Whether displaying it on a screen or feeding it to a neural network, it is fundamental to have a tool to turn the stored bytes into a meaningful representation. A solution is to read the bytes that we need when we need them directly from Blob Storage. open ( "container/file.svs" ) as f : # read the first 256 bytes print ( f.

Medical 60

Medical Process Cloud Bytes 60