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Messaging systems can significantly improve the reliability, performance, and scalability of the communication processes between applications and services. In serverless and microservices architectures, messaging systems are often used to build asynchronous service-to-service communication. MORE
Benchmarking spreadsheet systems Rahman et al., They often freeze during computation, and are unable to import datasets well below the size limits posed by current spreadsheet systems. The other systems avoid this recomputation, but are slower than Excel for value-only datasets. MORE
Composition-Based Design System In Figma. Composition-Based Design System In Figma. Working as a designer on a design system for a large product has taught me how precious the time you spend on a single task/component is. Now scale this to a whole design system. MORE
We’re continuously working to support the most popular operating systems with high quality OneAgent deployment options. Of course, it’s possible to run a legacy 32-bit application on a 64-bit operating system. Dynatrace news. MORE
Traditionally we use unit tests and integration tests that guarantee a system is production-ready. To better identify system vulnerabilities and improve resilience, Netflix invented Chaos Monkey , which injects various types of faults into the infrastructure and business systems. MORE
Wireless attacks on aircraft instrument landing systems Sathaye et al., Today’s paper is a good reminder of just how important it is becoming to consider cyber threat models in what are primary physical systems, especially if you happen to be flying on an aeroplane – which I am right now as I write this! The first fully operational Instrument Landing System (ILS) for planes was deployed in 1932. USENIX Security Symposium 2019. MORE
Eight years ago I wrote _Systems Performance: Enterprise and the Cloud_ (aka the "sysperf" book) on the performance of computing systems, and this year I'm excited to be releasing the second edition. In a way, Systems Performance is volume 1 and BPF Performance Tools is volume 2. MORE
Design systems have turned out to be a boon for such teams as they lend coherency to user experiences across frontends. In this article, you'll learn about the variations of design systems employed by organizations worldwide and their specific characteristics. MORE
May 2020, Applitools had the pleasure of hosting Tyler Krupicka from Intuit for an hour-long webinar discussing design systems and testability. At Intuit, Tyler works on the "Player/Design Systems" team, where he focuses on design systems. MORE
For small deployments, it isn’t a problem however when scaling up to hundred or even thousands of systems things can become complicated. Even when all the systems are mapped correctly by Dynatrace, identifying these systems is a real challenge. When deploying on multiple machines, the one agent will group all the instances of the same system together. Dynatrace will automatically group both systems. System (Tibco, API-gateway, Weblogic, shared-middleTier). MORE
Let’s assume for a moment that your data survives its many passes through a system’s DRAM and emerges intact. That data must then be safely transported over a network to the storage system where it is written to disk. Random bit flips are far more common than most people, even IT professionals, think. Surprisingly, the problem isn’t widely discussed, even though it is silently causing data corruption that can directly impact our jobs, our businesses, and our security. MORE
iOS app Obfuscation system has become the industry trend for different kinds of application developers and publishers so that data protection will be dealt with very easily and there will be no chance of any kind of problem. MORE
We’re pleased to announce that Dynatrace is among the first set of partners to offer support for AWS Distributor , a capability of AWS Systems Manager, that allows you to select from available popular third party agents to install and manage. What is AWS Systems Manager Distributor? MORE
In this alert, xMatters includes all the important incident information from Dynatrace, so there’s no need for you to visit additional system dashboards. Based on this contextual data, resources are prompted with their pre-configured response options, each of which kicks off a workflow across systems (based on the severity of the issue). Depending on the type of the issue, xMatters launches workflows across your systems to start the automated self-healing process. MORE
Gitlab had a very public outage last month. Most companies provide some kind of explanation when their services are interrupted. Those are usually sanitized (or seem sanitized) to make things seem better than they actually are. Gitlab instead provided an extremely detailed report of the incident as well as all the things they know they could be better at. Some of my friends were extremely troubled by the report. MORE
This week, the developers of Amazon Aurora have won the 2019 Association for Computing Machinery's (ACM) Special Interest Group on Management of Data (SIGMOD) Systems Award. The award recognizes "an individual or set of individuals for the development of a software or hardware system whose technical contributions have had significant impact on the theory or practice of large-scale data management systems MORE
As a PSM system administrator, you’ve relied on AppMon as a preconfigured APM tool for detecting, diagnosing, and repairing problems that impact the operational health of your Windchill application suite. The post It’s time to upgrade the PTC System Monitor (PSM)! MORE
YTSunnys) July 15, 2019 Distributed systems can “get frustrated” too. Failure on repeat Distributed software systems built with NServiceBus are pretty great about dealing with all kinds of failure. lets you do the same thing with your distributed system. MORE
A great example of this approach to innovation and problem solving is the creation of the AWS Nitro System (Nitro System), the underlying platform for our EC2 instances. Running a business at the scale of Amazon, we often have to solve problems that no other company has faced before. MORE
Professionally, I label myself as a developer, although I don’t like labels very much, and I prefer to say that the reason for my work is: to create quality software. But what is quality software ? I like to define it as follows: Quality software is that which meets the user's needs. MORE
Gone are the days when fleet managers had to maintain traditional, bulky logbooks and employee records in a single computer system periodically. Today, fleet management systems have brought more transparency and efficiency for organizations, drivers, fleet managers, and customers. MORE
Teaching rigorous distributed systems with efficient model checking Michael et al., It describes the labs environment, DSLabs , developed at the University of Washington to accompany a course in distributed systems. During the ten week course, students implement four different assignments: an exactly-once RPC protocol; a primary-backup system; Paxos; and a scalable, transactional key-value storage system. A visual debugger/system explorer. MORE
Machine learning systems are stuck in a rut Barham & Isard, HotOS’19. In this paper we argue that systems for numerical computing are stuck in a local basin of performance and programmability. Systems researchers are doing an excellent job improving the performance of 5-year old benchmarks, but gradually making it harder to explore innovative machine learning research ideas. MORE
Orbital edge computing: nanosatellite constellations as a new class of computer system , Denby & Lucia, ASPLOS’20. Only space system architects don’t call it request-response, they call it a ‘ bent-pipe architecture.’. Nanosatellite systems have a GSD of around 3.0m/px. MORE
To this end, we developed a Rapid Event Notification System (RENO) to support use cases that require server initiated communication with devices in a scalable and extensible manner. This messaging system is described in this blog post. MORE
Towards federated learning at scale: system design Bonawitz et al., This is a high level paper describing Google’s production system for federated learning. The FL system contains a number of privacy-enhancing building blocks, but the privacy guarantees of any end-to-end system will always depend on how they are used. At the core of the system is a federated learning approach called Federated Averaging , with an optional extension for Secure Aggregation. MORE
This means a system that is not merely available but is also engineered with extensive redundant measures to continue to work as its users expect. In large-scale systems, the assumption has to be that component failures will happen sooner or later. MORE
Systems performance is an effective discipline for performance analysis and tuning, and can help you find performance wins for your applications and the kernel. I've been working on Systems Performance 2nd Edition, now that the [BPF book] is done. MORE
” Destructive testing is a method that uses the system in a way other than intended to make the software program deliberately fail. How the system responds is then analyzed. Other tools are automated that let the tester fuzz test the system using fault injection techniques. MORE
Understanding, detecting and localizing partial failures in large system software , Lou et al., Partial failures ( gray failures ) occur when some but not all of the functionalities of a system are broken. overhead in terms of system throughput. MORE
When a software program or an application does not work the way it is created or designed to perform, it is called a software bug. In most cases, these errors are caused by developers or designers. MORE
A great example of this approach to innovation and problem solving is the creation of the AWS Nitro System , the underlying platform for our EC2 instances. Running a business at the scale of Amazon, we often have to solve problems that no other company has faced before. MORE
This analysis powers our services and enables the delivery of more seamless and reliable user … The post Scaling Uber’s Apache Hadoop Distributed File System for Growth appeared first on Uber Engineering Blog. Three years ago, Uber Engineering adopted Hadoop as the storage ( HDFS ) and compute ( YARN ) infrastructure for our organization’s big data analysis. MORE
distributed systems software design algorithms and data structure system architecture distributed network serviceScenario. Any service provider tries to reach several metrics in their activity. One group of these metrics is service quality. MORE
Systems performance is an effective discipline for performance analysis and tuning, and can help you find performance wins for your applications and the kernel. I've also been working on Systems Performance 2nd Edition, now that the [BPF book] is done. MORE
Thus, managing system processes and profiling is better off without it. With this in mind, you might need to create a script that goes through the system processes and provides a report when the script runs. python system monitoring plotlyLet’s face it: the mighty Task Manager isn’t a magic wand for all operations. Unless you’re into the dread of manual and repetitive checks. That is why we need an effective alternative to assess the impact of our test. MORE
Google added another book into their excellent SRE series: Building Secure and Reliable Systems. Copy/pasting a few paragraphs: "In this book we talk generally about systems, which is a conceptual way of thinking about the groups of components that cooperate to perform some function. MORE
Hawkins is the namesake that established the basis for a design system used across the Netflix Studio ecosystem. A design system, such as the one we developed for the Netflix Studio, can help alleviate most of these headaches. What is a design system? MORE
Yet, for all the importance that testing has in the SDLC, there is a misconception among many about the difference between a testing tool and a testing system. performance test tools test systemTesting is a mission-critical aspect of the software development lifecycle (SDLC). MORE
The interfaces to our digital system have been dictated by the capabilities of our computer systems—keyboards, mice, graphical interfaces, remotes, and touch screens. As a result, they fail to deliver a truly seamless and customer-centric experience that integrates our digital systems into our analog lives. All of these benefits make voice a game changer for interacting with all kinds of digital systems. MORE
Web developers or administrators did not have to worry or even consider the complexity of distributed systems of today. Great, your system was ready to be deployed. Once the system was deployed, to ensure everything was running smoothly, it only took a couple of simple checks to verify. MORE
How do you test a design system? You got here because you either have a design system or know you need one. Marie Drake , Principal Test Automation Engineer at News UK , presented her webinar, " Roadmap To Testing A Design System ", where she discussed this topic in some detail. MORE
performance mysql memory operating system bug memory management memory allocatorsWhen users experience memory usage issues with any software, including MySQL, their first response is to think that it’s a symptom of a memory leak. As this story will show, this is not always the case. This story is about a bug. MORE
If you need to dynamically trace Linux process system calls, you might first consider strace. So are there any tools that excel at tracing system calls in a production environment? This blog post introduces perf and traceloop, two commonly used command-line tools, to help you trace system calls in a production environment. strace is simple to use and works well for issues such as "Why can't the software run on this machine?" MORE
Systems Related Topics The Netflix TechBlog
FEBRUARY 18, 2022
To this end, we developed a Rapid Event Notification System (RENO) to support use cases that require server initiated communication with devices in a scalable and extensible manner. This messaging system is described in this blog post.
DZone
JANUARY 17, 2022
Thus, managing system processes and profiling is better off without it. With this in mind, you might need to create a script that goes through the system processes and provides a report when the script runs. python system monitoring plotlyLet’s face it: the mighty Task Manager isn’t a magic wand for all operations. Unless you’re into the dread of manual and repetitive checks. That is why we need an effective alternative to assess the impact of our test.
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Dotcom-Montior
NOVEMBER 24, 2021
Web developers or administrators did not have to worry or even consider the complexity of distributed systems of today. Great, your system was ready to be deployed. Once the system was deployed, to ensure everything was running smoothly, it only took a couple of simple checks to verify.
Dynatrace
JANUARY 12, 2022
Messaging systems can significantly improve the reliability, performance, and scalability of the communication processes between applications and services. In serverless and microservices architectures, messaging systems are often used to build asynchronous service-to-service communication.
The Netflix TechBlog
FEBRUARY 10, 2021
Hawkins is the namesake that established the basis for a design system used across the Netflix Studio ecosystem. A design system, such as the one we developed for the Netflix Studio, can help alleviate most of these headaches. What is a design system?
All Things Distributed
SEPTEMBER 14, 2020
A great example of this approach to innovation and problem solving is the creation of the AWS Nitro System , the underlying platform for our EC2 instances. Running a business at the scale of Amazon, we often have to solve problems that no other company has faced before.
DZone
APRIL 22, 2020
Traditionally we use unit tests and integration tests that guarantee a system is production-ready. To better identify system vulnerabilities and improve resilience, Netflix invented Chaos Monkey , which injects various types of faults into the infrastructure and business systems.
DZone
JUNE 15, 2020
Yet, for all the importance that testing has in the SDLC, there is a misconception among many about the difference between a testing tool and a testing system. performance test tools test systemTesting is a mission-critical aspect of the software development lifecycle (SDLC).
DZone
AUGUST 17, 2020
How do you test a design system? You got here because you either have a design system or know you need one. Marie Drake , Principal Test Automation Engineer at News UK , presented her webinar, " Roadmap To Testing A Design System ", where she discussed this topic in some detail.
High Scalability
FEBRUARY 19, 2021
This means a system that is not merely available but is also engineered with extensive redundant measures to continue to work as its users expect. In large-scale systems, the assumption has to be that component failures will happen sooner or later.
Smashing Magazine Graphics
JANUARY 3, 2022
Composition-Based Design System In Figma. Composition-Based Design System In Figma. Working as a designer on a design system for a large product has taught me how precious the time you spend on a single task/component is. Now scale this to a whole design system.
Dynatrace
OCTOBER 28, 2020
As a PSM system administrator, you’ve relied on AppMon as a preconfigured APM tool for detecting, diagnosing, and repairing problems that impact the operational health of your Windchill application suite. The post It’s time to upgrade the PTC System Monitor (PSM)!
Dynatrace
JUNE 12, 2020
We’re continuously working to support the most popular operating systems with high quality OneAgent deployment options. Of course, it’s possible to run a legacy 32-bit application on a 64-bit operating system. Dynatrace news.
Brendan Gregg
MARCH 8, 2020
Systems performance is an effective discipline for performance analysis and tuning, and can help you find performance wins for your applications and the kernel. I've also been working on Systems Performance 2nd Edition, now that the [BPF book] is done.
High Scalability
APRIL 9, 2020
Google added another book into their excellent SRE series: Building Secure and Reliable Systems. Copy/pasting a few paragraphs: "In this book we talk generally about systems, which is a conceptual way of thinking about the groups of components that cooperate to perform some function.
The Morning Paper
MARCH 15, 2020
Understanding, detecting and localizing partial failures in large system software , Lou et al., Partial failures ( gray failures ) occur when some but not all of the functionalities of a system are broken. overhead in terms of system throughput.
DZone
MAY 19, 2020
When a software program or an application does not work the way it is created or designed to perform, it is called a software bug. In most cases, these errors are caused by developers or designers.
Particular Software
JANUARY 18, 2022
YTSunnys) July 15, 2019 Distributed systems can “get frustrated” too. Failure on repeat Distributed software systems built with NServiceBus are pretty great about dealing with all kinds of failure. lets you do the same thing with your distributed system.
The Morning Paper
DECEMBER 5, 2019
Benchmarking spreadsheet systems Rahman et al., They often freeze during computation, and are unable to import datasets well below the size limits posed by current spreadsheet systems. The other systems avoid this recomputation, but are slower than Excel for value-only datasets.
All Things Distributed
SEPTEMBER 14, 2020
A great example of this approach to innovation and problem solving is the creation of the AWS Nitro System (Nitro System), the underlying platform for our EC2 instances. Running a business at the scale of Amazon, we often have to solve problems that no other company has faced before.
DZone
MAY 7, 2019
performance mysql memory operating system bug memory management memory allocatorsWhen users experience memory usage issues with any software, including MySQL, their first response is to think that it’s a symptom of a memory leak. As this story will show, this is not always the case. This story is about a bug.
DZone
JULY 9, 2020
Professionally, I label myself as a developer, although I don’t like labels very much, and I prefer to say that the reason for my work is: to create quality software. But what is quality software ? I like to define it as follows: Quality software is that which meets the user's needs.
All Things Distributed
MARCH 12, 2018
The interfaces to our digital system have been dictated by the capabilities of our computer systems—keyboards, mice, graphical interfaces, remotes, and touch screens. As a result, they fail to deliver a truly seamless and customer-centric experience that integrates our digital systems into our analog lives. All of these benefits make voice a game changer for interacting with all kinds of digital systems.
The Morning Paper
SEPTEMBER 26, 2019
Wireless attacks on aircraft instrument landing systems Sathaye et al., Today’s paper is a good reminder of just how important it is becoming to consider cyber threat models in what are primary physical systems, especially if you happen to be flying on an aeroplane – which I am right now as I write this! The first fully operational Instrument Landing System (ILS) for planes was deployed in 1932. USENIX Security Symposium 2019.
Dynatrace
APRIL 24, 2019
For small deployments, it isn’t a problem however when scaling up to hundred or even thousands of systems things can become complicated. Even when all the systems are mapped correctly by Dynatrace, identifying these systems is a real challenge. When deploying on multiple machines, the one agent will group all the instances of the same system together. Dynatrace will automatically group both systems. System (Tibco, API-gateway, Weblogic, shared-middleTier).
Brendan Gregg
MARCH 7, 2020
Systems performance is an effective discipline for performance analysis and tuning, and can help you find performance wins for your applications and the kernel. I've been working on Systems Performance 2nd Edition, now that the [BPF book] is done.
Testlodge
NOVEMBER 1, 2021
” Destructive testing is a method that uses the system in a way other than intended to make the software program deliberately fail. How the system responds is then analyzed. Other tools are automated that let the tester fuzz test the system using fault injection techniques.
DZone
JANUARY 23, 2021
If you need to dynamically trace Linux process system calls, you might first consider strace. So are there any tools that excel at tracing system calls in a production environment? This blog post introduces perf and traceloop, two commonly used command-line tools, to help you trace system calls in a production environment. strace is simple to use and works well for issues such as "Why can't the software run on this machine?"
Uber Engineering
APRIL 5, 2018
This analysis powers our services and enables the delivery of more seamless and reliable user … The post Scaling Uber’s Apache Hadoop Distributed File System for Growth appeared first on Uber Engineering Blog. Three years ago, Uber Engineering adopted Hadoop as the storage ( HDFS ) and compute ( YARN ) infrastructure for our organization’s big data analysis.
Simform
JULY 23, 2021
Design systems have turned out to be a boon for such teams as they lend coherency to user experiences across frontends. In this article, you'll learn about the variations of design systems employed by organizations worldwide and their specific characteristics.
Brendan Gregg
JULY 15, 2020
Eight years ago I wrote _Systems Performance: Enterprise and the Cloud_ (aka the "sysperf" book) on the performance of computing systems, and this year I'm excited to be releasing the second edition. In a way, Systems Performance is volume 1 and BPF Performance Tools is volume 2.
Tech News Gather
MAY 1, 2022
iOS app Obfuscation system has become the industry trend for different kinds of application developers and publishers so that data protection will be dealt with very easily and there will be no chance of any kind of problem.
Dynatrace
AUGUST 24, 2020
We’re pleased to announce that Dynatrace is among the first set of partners to offer support for AWS Distributor , a capability of AWS Systems Manager, that allows you to select from available popular third party agents to install and manage. What is AWS Systems Manager Distributor?
DZone
JUNE 25, 2019
Let’s assume for a moment that your data survives its many passes through a system’s DRAM and emerges intact. That data must then be safely transported over a network to the storage system where it is written to disk. Random bit flips are far more common than most people, even IT professionals, think. Surprisingly, the problem isn’t widely discussed, even though it is silently causing data corruption that can directly impact our jobs, our businesses, and our security.
The Morning Paper
OCTOBER 11, 2020
Orbital edge computing: nanosatellite constellations as a new class of computer system , Denby & Lucia, ASPLOS’20. Only space system architects don’t call it request-response, they call it a ‘ bent-pipe architecture.’. Nanosatellite systems have a GSD of around 3.0m/px.
The Morning Paper
JUNE 6, 2019
Towards federated learning at scale: system design Bonawitz et al., This is a high level paper describing Google’s production system for federated learning. The FL system contains a number of privacy-enhancing building blocks, but the privacy guarantees of any end-to-end system will always depend on how they are used. At the core of the system is a federated learning approach called Federated Averaging , with an optional extension for Secure Aggregation.
Professor Beekums
MARCH 5, 2017
Gitlab had a very public outage last month. Most companies provide some kind of explanation when their services are interrupted. Those are usually sanitized (or seem sanitized) to make things seem better than they actually are. Gitlab instead provided an extremely detailed report of the incident as well as all the things they know they could be better at. Some of my friends were extremely troubled by the report.
Simform
JANUARY 31, 2021
Gone are the days when fleet managers had to maintain traditional, bulky logbooks and employee records in a single computer system periodically. Today, fleet management systems have brought more transparency and efficiency for organizations, drivers, fleet managers, and customers.
DZone
FEBRUARY 8, 2022
distributed systems software design algorithms and data structure system architecture distributed network serviceScenario. Any service provider tries to reach several metrics in their activity. One group of these metrics is service quality.
All Things Distributed
JULY 4, 2019
This week, the developers of Amazon Aurora have won the 2019 Association for Computing Machinery's (ACM) Special Interest Group on Management of Data (SIGMOD) Systems Award. The award recognizes "an individual or set of individuals for the development of a software or hardware system whose technical contributions have had significant impact on the theory or practice of large-scale data management systems
The Morning Paper
JUNE 27, 2019
Machine learning systems are stuck in a rut Barham & Isard, HotOS’19. In this paper we argue that systems for numerical computing are stuck in a local basin of performance and programmability. Systems researchers are doing an excellent job improving the performance of 5-year old benchmarks, but gradually making it harder to explore innovative machine learning research ideas.
The Morning Paper
APRIL 16, 2019
Teaching rigorous distributed systems with efficient model checking Michael et al., It describes the labs environment, DSLabs , developed at the University of Washington to accompany a course in distributed systems. During the ten week course, students implement four different assignments: an exactly-once RPC protocol; a primary-backup system; Paxos; and a scalable, transactional key-value storage system. A visual debugger/system explorer.
Dynatrace
AUGUST 27, 2019
In this alert, xMatters includes all the important incident information from Dynatrace, so there’s no need for you to visit additional system dashboards. Based on this contextual data, resources are prompted with their pre-configured response options, each of which kicks off a workflow across systems (based on the severity of the issue). Depending on the type of the issue, xMatters launches workflows across your systems to start the automated self-healing process.
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