This site uses cookies to improve your experience. To help us insure we adhere to various privacy regulations, please select your country/region of residence. If you do not select a country, we will assume you are from the United States. Select your Cookie Settings or view our Privacy Policy and Terms of Use.
Cookie Settings
Cookies and similar technologies are used on this website for proper function of the website, for tracking performance analytics and for marketing purposes. We and some of our third-party providers may use cookie data for various purposes. Please review the cookie settings below and choose your preference.
Used for the proper function of the website
Used for monitoring website traffic and interactions
Cookie Settings
Cookies and similar technologies are used on this website for proper function of the website, for tracking performance analytics and for marketing purposes. We and some of our third-party providers may use cookie data for various purposes. Please review the cookie settings below and choose your preference.
Strictly Necessary: Used for the proper function of the website
Performance/Analytics: Used for monitoring website traffic and interactions
The Qualys Threat Research Unit (TRU) has discovered a Remote Unauthenticated Code Execution (RCE) vulnerability in OpenSSH server (sshd) in glibc-based Linux systems. Instead of dst_addr use a src_addr to see the most active sources that have been targeting any of your ssh daemons on all the servers in the respective VPC.
The evolution of DevOps automation Since the concept of DevOps emerged around 2007 and 2008 in response to pain points with Agile development, DevOps automation has been continuously evolving. For example, consider an e-commerce website that automatically sends personalized discount codes to customers who abandon their shopping carts.
Such web resources have two things in common: Their requests never hit your data center, hence any failed requests don’t show up in your web server logs. This approach was already at its limit back in 2008 when an Akamai CDN network had only ~25,000 delivery nodes. Today, Akamai has ~265,000 delivery nodes.
Windows: Windows Server2008. Windows: Windows Server 1809. Improved OneAgent.NET code module handling on read-only file systems. A host group defined manually in the local ruxitagentproc.conf file is merged with the standalone config from the server, thereby ensuring that the host group is never ignored.
A brief history of IPC at Netflix Netflix was early to the cloud, particularly for large-scale companies: we began the migration in 2008, and by 2010, Netflix streaming was fully run on AWS. Today we have a wealth of tools, both OSS and commercial, all designed for cloud-native environments.
Many database administrators find themselves having to support instances of SQL Server Reporting Services (SSRS), or at least the backend databases that are required for SSRS. These topics apply to both SQL Server Reporting Services as well as Power BI Report Server. Installation and support of SSRS can be confusing.
s announcement of Amazon RDS for Microsoft SQL Server and.NET support for AWS Elastic Beanstalk marks another important step in our commitment to increase the flexibility for AWS customers to use the choice of operating system, programming language, development tools and database software that meet their application requirements. Comments ().
Yet, for all these technological developments, it’s interesting that many of us are still serving sites in the same way Tim did with the very first website — a web server serving static website files. However, unlike the early days of the web, static sites are no longer limited to developers working in a code editor. Templates.
During the recession of 2008, they experienced firsthand how fast money and assets can vanish. Here are a few ways you can scale down and save: Audit your systems: Auditing your system for unused servers and eliminating those servers can reduce your cloud spend. If needed, you can spin up a backup.
On August 7, 2019, AMD finally unveiled their new 7nm EPYC 7002 Series of server processors, formerly code-named "Rome" at the AMD EPYC Horizon Event in San Francisco. This is the second generation EPYC server processor that uses the same Zen 2 architecture as the AMD Ryzen 3000 Series desktop processors.
Fujitsu used SPARC for everything from servers to embedded systems like cameras for a long time. There are also enterprise server oriented designs from several vendors including Alibabas XuanTie division, with performance comparable to leading x86 and ARMCPUs.
This follow-up post revisits the question for SQL Server 2019, using a larger number of rows. It has 32GB RAM, with 24GB available to the SQL Server 2019 instance. It would be nice if SQL Server could push the aggregation down into the scan and just return distinct values from the column store directly. Test Environment.
This time around, I want to talk about a feature included with SQL Server client tools that we should not be using these days – not just because it is deprecated but, more importantly, because it has the potential to completely take a server down: SQL Server Profiler. Not too long ago, something like this happened to us.
I happen to be using SQL Server 2019 CU16 but the details I’ll describe haven’t materially changed since partition level lock escalation was added to SQL Server2008. The SQL Server lock manager keeps track of the number of locks held by the current transaction. Testing environment. Well, almost. The sqlmin!lck_lockInternal
If you’re reading this, chances are you’ve played around with using AI tools like ChatGPT or GitHub Copilot to write code for you. So far I’ve read a gazillion blog posts about people’s experiences with these AI coding assistance tools. And if I switch tabs to view a paper from 2008, then a song from 2008 could start up.
My goal is to resolve mysteries about SQL Server I encounter but do this without going straight the source code first. The first case that helped me start this journey was asked by a MVP within the SQL Server community (his first name starts with Joey<g>). The question went something like this….
In a recent tip , I described a scenario where a SQL Server 2016 instance seemed to be struggling with checkpoint times. A SQL Server DBA myth a day: (15/30) checkpoint only writes pages from committed transactions. How It Works: When is the FlushCache message added to SQL Server Error Log? writes/sec average throughput: 46.96
Table-valued parameters have been around since SQL Server2008 and provide a useful mechanism for sending multiple rows of data to SQL Server, brought together as a single parameterized call. } ; We now have correct lengths for the column definitions, and we won't be passing them as LOBs over TDS to SQL Server.
SQL Server 2016 ‘It Just Runs Faster’ A bold statement that any SQL Server professional can stand behind with confidence. Try SQL Server 2016 Today. The SQL Server Development team tasked several individuals with scalability improvements and real world testing patterns. – [link]. Follow-up.
Now we have a problem statement that we can reason about: why are large chunks of our code segment filled with zeroes? This command compares the code bytes in the crash dump (some of them are saved in the crash dump, just in case) against those on disk. In this case it said that 9322 bytes in the code in the crash dump were wrong.
I immediately saw that CcmExec.exe (part of Microsoft’s System Management Server ) had 508,000 handles open, which is both a lot and also amazingly close to my zombie count. In hindsight it’s obvious that these zombies were caused by a trivial user-space coding bug. A Windows kernel file buffer bug from Server2008 R2 to Windows 10.
There are multiple methods to look at poorly performing queries in SQL Server, notably Query Store, Extended Events, and dynamic management views (DMVs). Borrowing and adapting code from a previous post, Examining the Performance Impact of an Adhoc Workload , we will first create two stored procedures. Each option has pros and cons.
In this blog, we’ll provide a comparison between MariaDB vs. MySQL (including Percona Server for MySQL ). Introduction: MariaDB vs. MySQL The goal of this blog post is to evaluate, at a higher level, MariaDB vs. MySQL vs. Percona Server for MySQL side-by-side to better inform the decision making process. What is MariaDB?
It can be activated from SQL Server2008 to 2014 inclusive using documented trace flag 610. From SQL Server 2016 onward, FastLoadContext is enabled by default ; the trace flag is not required. For more background, see the Data Performance Loading Guide and the Tiger Team notes on the behaviour changes for SQL Server 2016.
As data centers and volumes of servers have grown, so has the overall amount of electricity consumed around the world. Electricity used by servers doubled between 2000 and 2005 (and has continued growing ever since) from 12 billion to 23 billion kilowatt hours. CPU Utilization and Power Consumption (Source: Blackburn 2008).
As data centers and volumes of servers have grown, so has the overall amount of electricity consumed around the world. Electricity used by servers doubled between 2000 and 2005 (and has continued growing ever since) from 12 billion to 23 billion kilowatt hours. CPU Utilization and Power Consumption (Source: Blackburn 2008).
As data centers and volumes of servers have grown, so has the overall amount of electricity consumed around the world. Electricity used by servers doubled between 2000 and 2005 (and has continued growing ever since) from 12 billion to 23 billion kilowatt hours. CPU Utilization and Power Consumption (Source: Blackburn 2008).
It uses a Solaris Porting Layer (SPL) to provide a Solaris-kernel interface on Linux, so that unmodified ZFS code can execute. There's also a ZFS send/recv code path that should try to use the TASK_INTERRUPTIBLE flag (as suggested by a coworker), to avoid a kernel hang (can't kill -9 the process). Oracle VM Server is based on Xen.
The simplest of them is that open-source projects are those whose source code is available to read and reuse in other projects. You can just navigate to their repository, open the files, analyze the code, change according to yourself and reuse it as per your requirement. . Contribution to open-source is not equal to coding.
The DTU calculator is a free tool you can use to upload performance metrics from your server, and use the data to determine the appropriate service tier if you were to migrate that server to an Azure SQL Database (or to a SQL Database elastic pool ). The default is -1, which means copy all watched SQL Servers.
Using SQL Server’s SNITrace to Troubleshoot Networking Issues In the process of tracking down a few TCP 10054 issues (highlighted here: [link] ) I also used the SNITrace (SNI Trace) capabilities.
We organize all of the trending information in your field so you don't have to. Join 5,000+ users and stay up to date on the latest articles your peers are reading.
You know about us, now we want to get to know you!
Let's personalize your content
Let's get even more personalized
We recognize your account from another site in our network, please click 'Send Email' below to continue with verifying your account and setting a password.
Let's personalize your content