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Here is a collection of articles and news on scalable systems. The links are updated via RSS sources. You can subscribe to this page via RSS feed or by email.

  • Posted on Wednesday September 19, 2018
    With the enormous attack surface of cloud providers like AWS, Azure, and GCP, why aren't there more security problems? Data breaches and cyber attacks occur daily. How do you explain the unreasonable effectiveness of cloud security? Google has an ebook on their security approach; Microsoft has some web pages. Both are the equivalent of that person ... Continue Reading »
  • Posted on Friday September 14, 2018
    Hey, it's HighScalability time:   The Cloud Native Interactive Landscape is fecund. You are viewing 581 cards with a total of 1,237,157 stars, market cap of $6.86T and funding of $20.1B. (changelog)   Do you like this sort of Stuff? Please lend me your support on Patreon. It would mean a great deal to me. And if ... Continue Reading »
  • Posted on Monday September 10, 2018
      Like an amoeba the public cloud is extending fingerlike projections to the edge in a new kind of architecture that creates a world spanning distributed infrastructure under one centralized management, billing, and security domain. This issue—the deep nature of centralization—came up as a comment on my article What Do You Believe Now That ... Continue Reading »
  • Posted on Saturday September 08, 2018
      New databases used to be announced seemingly every week. While database neogenesis has slowed down considerably, it has not gone necrotic. RISELabs, those wonderfully innovative folks over at Berkeley, have uplifted their Anna datatabase—a shared-nothing, thread-per-core architecture to achieve lightning-fast speeds by avoiding all coordination mechanisms—to become cloud-aware. What's changed? Anna is not ... Continue Reading »
  • Posted on Friday September 07, 2018
    Hey, it's HighScalability time:   Get antsy waiting 60 seconds for a shot? Imagine taking over 300,000 photos over 14 years, waiting for Mount Colima to erupt. Sergio Tapiro studied, waited, and snapped.   Do you like this sort of Stuff? Please lend me your support on Patreon. It would mean a great deal to me. And if ... Continue Reading »
  • Posted on Friday August 31, 2018
    Hey, it's HighScalability time: This mind blowing creation is from John Williamson. It's the first million integers, represented as binary vectors indicating their prime factors, laid out with UMAP. No, I really have no idea what that means either, but it did make me consider that our universe could be created ... Continue Reading »
  • Posted on Monday August 27, 2018
      This is article was written by Dirceu Pereira Tiegs, Site Reliability Engineer at Auth0, and originally was originally published in Auth0. Auth0 provides authentication, authorization, and single sign-on services for apps of any type (mobile, web, native) on any stack. Authentication is critical for the vast majority of apps. We designed ... Continue Reading »
  • Posted on Friday August 24, 2018
    Hey, it's HighScalability time:   Images from a far flung galaxy? Nope. It's the mind blowing swirling beauty of ink in motion.    Do you like this sort of Stuff? Please lend me your support on Patreon. It would mean a great deal to me. And if you know anyone looking for a simple book that uses ... Continue Reading »
  • Posted on Saturday November 25, 2017
    Introduction Load balance is used to rebalance the whole system resources (eg, CPU, memory, etc) so that system performance, scalability (in terms of no matter how many processes contend) and usability (in terms of idle resources can be used up immediately) will be improved. In this article, I mainly present ... Continue Reading »
  • Posted on Saturday September 09, 2017
    The encoding of x86 and x86-64 instructions is well documented in Intel or AMD’s manuals. However, they are not quite easy for beginners to start with to learn encoding of the x86-64 instructions. In this post, I will give a list of useful manuals for understanding and studying the x86-64 ... Continue Reading »
  • Posted on Saturday September 09, 2017
    The metadata checkpointing in HDFS is done by the Secondary NameNode to merge the fsimage and the edits log files periodically and keep edits log size within a limit. For various reasons, the checkpointing by the Secondary NameNode may fail. For one example, HDFS SecondaraNameNode log shows errors in its ... Continue Reading »
  • Posted on Sunday August 27, 2017
    Introduction In general, if we want to debug Linux Kernel, there are lots of tools such as Linux Perf, Kprobe, BCC, Ktap, etc, and we can also write kernel modules, proc subsystems or system calls for some specific debugging aims. However, if we have to instrument kernel to achieve our ... Continue Reading »
  • Posted on Saturday August 26, 2017
    Introduction As we know, network subsystems are important in computer systems since they are I/O systems and need to be optimized with many algorithms and skills. This article will introduce how QEMU/KVM [2] network part works. In order to put everything simple and easy to understand, we will begin with ... Continue Reading »
  • Posted on Sunday August 20, 2017
    Abstract Most popular task monitor systems (such as top, iotop, proc, etc) can only get tasks’ disk I/O information like tasks’ I/O utilization percentage every seconds due to kernel timer/tick frequency and high time cost of system interfaces. This article presents I/O Microscopy, a new way to get tasks’ disk ... Continue Reading »
  • Posted on Tuesday February 14, 2017
    Motivation Recently, I find it is hard to know the percentage of time that one process uses to wait for synchronous I/O (eg, read, etc). One way is to use the taskstats API provided by Linux Kernel [1]. However, for this way, the precision may be one problem. With this ... Continue Reading »
  • Posted on Sunday November 29, 2015
    Amazon S3 is a widely used public cloud storage system. S3 allows an object/file to be up to 5TB which is enough for most applications. The AWS Management Console provides a Web-based interface for users to upload and manage files in S3 buckets. However, uploading a large files that is ... Continue Reading »
  • Posted on Tuesday March 10, 2015
    Retail is one of the most important business domains for data science and data mining applications because of its prolific data and numerous optimization problems such as optimal prices, discounts, recommendations, and stock levels that can be solved using data analysis methods. The rise of omni-channel retail that integrates marketing, ... Continue Reading »
  • Posted on Sunday September 14, 2014
    Hadoop 2 or YARN is the new version of Hadoop. It adds the yarn resource manager in addition to the HDFS and MapReduce components. Hadoop MapReduce is a programming model and software framework for writing applications, which is an open-source variant of MapReduce designed and implemented by Google initially for ... Continue Reading »
  • Posted on Tuesday March 18, 2014
    Benchmarks are important to understand the performance and quantitative and qualitative comparison of different systems. Many analytic frameworks, such as Hive, Impala and Shark, are designed and implemented these years and become fundamental software for processing big data. How to benchmark these big data analytic systems is an interesting problem. ... Continue Reading »
  • Posted on Tuesday February 04, 2014
    The public cloud storage services like Amazon S3, Google Cloud Storage and Windows Azure Storage replicate the data to ensure high availability. On the other hand, with data being replicated, the storage services exhibits certain data consistency models. Different cloud service providers employ different data consistency models nowadays. In this ... Continue Reading »
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2 comments:

  1. Note for blog authors: if you do not want your articles appear here (we just post a excerpt, not the full content), please drop me a message and I will delete them. If you have good suggestions on blogs/sites (with a RSS feed) to add to this list, please also let me know.

  2. Yeah, the poll() function is broken on MacOS and therefore is not supported in Python for the Mac.The select library supports other polling mechanisms; it essentially exposes whatever the OS supports. Let me look into an update to the code that will use kevent on Macs.

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