1024 Words: SEND Buffers and Concurrent Connections
#devops #webperf #ado The relationship between SEND buffers and concurrent connections The send buffer setting is the maximum amount of data a system will send before receiving an acknowledgement, and the receive window setting is the maximum size window the system will advertise. Many folks tweak the send buffer settings on web and application servers as well as intermediate devices (proxies, load balancers, etc...) to optimize for high-speed, high-latency pipes. However, as this is often a system-wide configuration change, mucking with the SEND buffer sizes can directly impact the connection capacity of the system. Remember, "buffering" takes up memory, and so do connections (session and state table storage),1024 Words: Application Health Monitoring at a Glance
It's not enough to measure connectivity or even status codes… See also Axiom #1 of the Three Axioms of Application Delivery 1024 Words: Why Devops is Hard 1024 Words: The Theory of (Performance) Relativity Filling the SLA Gap in the Cloud Visibility: Keystone to Rapid Recovery Everywhere All Your Packets Are Belong to … You? The Three Axioms of Application Delivery1024 Words: Why Devops is Hard
#devops #cloud #virtualization Just because you don't detail the complexity doesn't mean it isn't there It should be noted that this is one – just one – Java EE application and even it is greatly simplified (architectural flowcharts coming from the dev side of the house are extraordinarily complicated, owing to the number of interconnects and integrations required). Most enterprises have multiple applications that require just as many interconnects, with large enterprises numbering their applications in the hundreds. Related blogs & articles: Devops Proverb: Process Practice Makes Perfect Devops is a Verb 1024 Words: The Devops Butterfly Effect Devops is Not All About Automation Application Security is a Stack Capacity in the Cloud: Concurrency versus Connections Ecosystems are Always in Flux The Pythagorean Theorem of Operational Risk1024 Words: The Devops Butterfly Effect
#devops A single configuration error can have far flung impact across IT and the business Chaos theory claims a butterfly flapping its wings in one area of the world can result in a hurricane elsewhere. The impact of devops – or the lack thereof – may not be as devastating, but it does have an impact in terms of time, money and risk. IT Chaos Theory: The PeopleSoft Effect Cloud Delivery Model is about Ops, not Apps 1024 Words: Building Secure Web Applications F5 Security: The Changing Threat Landscape The Changing Security Threat Landscape Infographic All 1024 Words Posts on DevCentral1024 Words: Scale Fail
If you’re scaling applications and not architectures, you’re doing it wrong. Intercloud: Are You Moving Applications or Architectures? The Secret to Doing Cloud Scalability Right At the Intersection of Cloud and Control… 1024 Words: Only Skin Deep 1024 Words: Ch-ch-chain of Fools
