The document summarizes the request processing flow for Oracle iPlanet Webserver. It describes the various processing stages including authentication, name translation, path checking, object typing, input/output processing, routing, service execution, error handling, and logging. Key directives are executed at each stage to determine how the request is handled. Requests for files in the document root and for web applications are processed differently, with different directives matched at each stage.
The document describes the request processing stages in Oracle iPlanet Webserver:
1. Request processing involves multiple stages like authorization, name translation, path checking, determining object type, input, output, routing, service, logging and error handling.
2. Directives are used to invoke server functions at different stages and can be grouped in templates to conditionally process requests.
3. Key stages include name translation to map URLs to files/directories, authorization to validate user credentials, determining the server object type to handle the request, routing the request to the appropriate service, and logging processing results.
The document describes the request processing stages in Oracle iPlanet Webserver. There are predefined stages for the entire request handling process, including AuthTrans, NameTrans, PathCheck, ObjectType, Input, Output, Route, Service, AddLog, and Error. Directives are used to define settings within the web server and invoke functions at various request processing stages. Templates can group directives to process them conditionally.
Presentation of Wealthfront's Service Framework and Standardized RPC given at Square in March 2012. The majority of the slides comes from an internal presentation I gave in February 2011.
POGen: A Test Code Generator Based on Template Variable Coverage in Gray-Box ...Kazunori Sakamoto
The document discusses testing web applications that use template engines. It proposes:
1. Defining fragments in templates that should be checked as test oracles.
2. Measuring coverage of variable fragments to indicate oracle quality.
3. A tool called POGen that generates skeleton test code to reduce testing costs.
This document discusses building asynchronous services with Service Component Architecture (SCA). It begins with an overview of SCA and why asynchronous services are important. It then covers facilities that support asynchronous services like concurrency classes, JAX-WS, JMS, and BPEL. The document explains how SCA supports asynchronous service interactions through callbacks and bidirectional interfaces. It provides an example of an asynchronous service, client, and composite. Finally, it compares asynchronous services to using events and provides a demo scenario of an asynchronous travel search application built with SCA.
The document provides an overview of Symfony2 internals. It discusses the main Symfony2 components like HttpFoundation and DependencyInjection. It also covers Composer, autoloading standards like PSR-0, and how the request-response cycle works in Symfony2. The document demonstrates these concepts and also discusses how Symfony2 uses events.
The document describes the request processing stages in Oracle iPlanet Webserver:
1. Request processing involves multiple stages like authorization, name translation, path checking, determining object type, input, output, routing, service, logging and error handling.
2. Directives are used to invoke server functions at different stages and can be grouped in templates to conditionally process requests.
3. Key stages include name translation to map URLs to files/directories, authorization to validate user credentials, determining the server object type to handle the request, routing the request to the appropriate service, and logging processing results.
The document describes the request processing stages in Oracle iPlanet Webserver. There are predefined stages for the entire request handling process, including AuthTrans, NameTrans, PathCheck, ObjectType, Input, Output, Route, Service, AddLog, and Error. Directives are used to define settings within the web server and invoke functions at various request processing stages. Templates can group directives to process them conditionally.
Presentation of Wealthfront's Service Framework and Standardized RPC given at Square in March 2012. The majority of the slides comes from an internal presentation I gave in February 2011.
POGen: A Test Code Generator Based on Template Variable Coverage in Gray-Box ...Kazunori Sakamoto
The document discusses testing web applications that use template engines. It proposes:
1. Defining fragments in templates that should be checked as test oracles.
2. Measuring coverage of variable fragments to indicate oracle quality.
3. A tool called POGen that generates skeleton test code to reduce testing costs.
This document discusses building asynchronous services with Service Component Architecture (SCA). It begins with an overview of SCA and why asynchronous services are important. It then covers facilities that support asynchronous services like concurrency classes, JAX-WS, JMS, and BPEL. The document explains how SCA supports asynchronous service interactions through callbacks and bidirectional interfaces. It provides an example of an asynchronous service, client, and composite. Finally, it compares asynchronous services to using events and provides a demo scenario of an asynchronous travel search application built with SCA.
The document provides an overview of Symfony2 internals. It discusses the main Symfony2 components like HttpFoundation and DependencyInjection. It also covers Composer, autoloading standards like PSR-0, and how the request-response cycle works in Symfony2. The document demonstrates these concepts and also discusses how Symfony2 uses events.
HTTP is an application-level protocol for transmitting hypermedia documents across the internet. It uses a client-server model with requests containing a method, URL, and protocol version, and responses containing a status line and headers along with an optional body. Common methods include GET, POST, and HEAD. HTTP is stateless but can be made stateful through mechanisms like cookies.
The document provides an overview of some key classes and utilities available in the Darwino API framework. The Darwino APIs are designed to be portable across devices and provide lightweight wrappers to similar device APIs. The APIs aim to make common tasks easy while allowing developers to use more advanced features when needed. Some notable utilities covered include the Platform object for accessing services, plugins for extension mechanisms, JSON and XML processing libraries, HTTP client, task scheduling, logging, internationalization support, and application manifests.
The document discusses the Open Data Protocol (OData), which is an open specification that allows the creation of REST-based data services that support built-in operations like CRUD (Create, Read, Update, Delete) and querying capabilities. OData builds on fundamental web standards like HTTP, URI conventions, and XML or JSON for payloads to define a protocol that can be used for exposing and consuming data across systems via REST. The specification also covers addressing schemes, payloads, metadata, batching requests, and how OData can be implemented using technologies like WCF Data Services.
Swift distributed tracing method and tools v2zhang hua
The document proposes a distributed tracing method and tools for Swift object storage. It involves adding middleware to collect trace data with unique IDs as requests pass through Swift components. Trace data including timing would be sent to a repository and correlated to reconstruct processing paths. Analysis tools would allow querying trace data and visualizing span trees to diagnose performance and identify bottlenecks across the distributed Swift infrastructure.
The document discusses HTTP and the client-server model used for web interactions. [1] The HTTP protocol uses a request-response model where a client like a web browser sends an HTTP request to a server, which holds web content and services. [2] The server then sends an HTTP response back to the client. [3] Key aspects covered include the structure of HTTP requests and responses, common request and response headers, status codes, and methods like GET and POST.
This document discusses validating JSON payloads in Mule applications. It explains that JSON is a lightweight data format that is easy for humans to read and write. The document also provides an example of a valid JSON payload structure. It then demonstrates a Mule flow that uses a json:is-json-filter component to validate incoming JSON payloads against a file inbound endpoint. If validation fails, it routes the message to a sub-flow that logs a rejection message. This allows validating JSON payloads and handling invalid ones gracefully.
Infrastructure as Code - Terraform - Devfest 2018Mathieu Herbert
1. Terraform allows users to define infrastructure as code and treat it like versioned code. It uses configuration files that are shared and versioned.
2. Terraform uses providers to manage cloud infrastructure through their APIs. It generates and executes plans to build, change, and destroy infrastructure based on the configuration files.
3. Terraform supports variables, modules, data sources, and workspaces to help manage infrastructure in different environments like dev, staging, and production in an automated and reusable way.
This document discusses how to collect big data into Hadoop using Apache Flume and Fluentd. It describes some problems with a poor man's approach to data collection and discusses the basic theories of divide and conquer and streaming to make data collection more efficient. It then provides an overview of how Apache Flume and Fluentd work, including their network topologies, configurations, and plugin systems. Examples are given of how Fluentd has been used at Treasure Data to collect and analyze REST API logs, backend logs, and Hadoop logs. The document concludes with a discussion of developing plugins for Fluentd.
Fluentd is a log collector that makes log collection easy. It allows users to collect, store, process, and visualize logs in JSON format. Fluentd works by using input plugins to collect logs, output plugins to export logs to different databases and storage systems, and buffer plugins to filter and route logs. Key features include its large number of plugins, support for JSON formatting, and ability to automatically handle failures and retries.
This document summarizes how to use a pre-commit hook with SVN to check code for syntax and coding standards before committing. The hook runs PHPCodeSniffer on files being committed, catching output to parse for errors. It addresses issues like having no local files by using a PHP stream wrapper to access file contents from the SVN repository instead of temporary files.
The document describes the OGCE WorkflowSuite, which provides tools for composing and executing scientific workflows. It includes the Generic Service Toolkit for wrapping applications as web services, the XRegistry for information sharing, and XBaya for graphical workflow composition and monitoring. Workflows can integrate various resources and be made flexible, dynamic, and interoperable. Example applications discussed are weather forecasting, genome analysis, and computational evaluation.
JSOP is a proposed browser-enabled HTTP-based protocol for efficiently exchanging fine-grained information. It involves serializing data to JSON, supports GET, PUT, and PATCH requests, and allows hierarchical resources and binary data. Sample requests and responses are provided to demonstrate retrieving and updating folder structures containing documents. PATCH requests use a JSON diff format to specify changes. Resources can also be manipulated via multipart POST requests wrapping data and diff payloads.
Tracing Micro Services with OpenTracingHemant Kumar
Tracing in the world of micro services has become a standard with people using distributed tracers like Zipkin, Jaeger, Appdash etc. But, with so many different tracers, its confusing to choose one tracer and then painful to replace a tracer. That's where OpenTracing comes in. OT provides a consistent, vendor-neutral API to allow users to choose whatever distributed tracer they need and can change the tracer with just an O(1) operation.
(ATS4-PLAT05) Accelrys Catalog: A Search Index for AEPBIOVIA
Accelrys Catalog is a new technology for searching protocol databases and usage logs. It uses the Apache SOLR search engine to index protocol and usage information. As a pro client developer it lets you quickly find example protocols that use a particular component, as a web port user you can find popular protocols in a particular scientific domain, and as an administrator you can search for user protocols that verify compliance with IT policies or to prepare for server migration or upgrade. In this talk we will discuss how to configure and administer the search index, the algorithms employed in the search, and how the different types of end-users can get the most out of this technology.
End-to-end Data Governance with Apache Avro and AtlasDataWorks Summit
This document discusses end-to-end data governance with Apache Avro and Apache Atlas at Comcast. It outlines how Comcast uses Avro for schema governance and Apache Atlas for data governance, including metadata browsing, schema registry, and tracking data lineage. Comcast has extended Atlas with new types for Avro schemas and customizations to better handle their hybrid environment and integrate platforms for comprehensive data governance.
Fluentd is an open source data collector designed for log aggregation and processing. It has a pluggable architecture that allows for flexible input, filtering, and output of log data. It is useful for log collection, processing, and forwarding to storage or analysis services in real-time.
Northern Engraving | Modern Metal Trim, Nameplates and Appliance PanelsNorthern Engraving
What began over 115 years ago as a supplier of precision gauges to the automotive industry has evolved into being an industry leader in the manufacture of product branding, automotive cockpit trim and decorative appliance trim. Value-added services include in-house Design, Engineering, Program Management, Test Lab and Tool Shops.
HTTP is an application-level protocol for transmitting hypermedia documents across the internet. It uses a client-server model with requests containing a method, URL, and protocol version, and responses containing a status line and headers along with an optional body. Common methods include GET, POST, and HEAD. HTTP is stateless but can be made stateful through mechanisms like cookies.
The document provides an overview of some key classes and utilities available in the Darwino API framework. The Darwino APIs are designed to be portable across devices and provide lightweight wrappers to similar device APIs. The APIs aim to make common tasks easy while allowing developers to use more advanced features when needed. Some notable utilities covered include the Platform object for accessing services, plugins for extension mechanisms, JSON and XML processing libraries, HTTP client, task scheduling, logging, internationalization support, and application manifests.
The document discusses the Open Data Protocol (OData), which is an open specification that allows the creation of REST-based data services that support built-in operations like CRUD (Create, Read, Update, Delete) and querying capabilities. OData builds on fundamental web standards like HTTP, URI conventions, and XML or JSON for payloads to define a protocol that can be used for exposing and consuming data across systems via REST. The specification also covers addressing schemes, payloads, metadata, batching requests, and how OData can be implemented using technologies like WCF Data Services.
Swift distributed tracing method and tools v2zhang hua
The document proposes a distributed tracing method and tools for Swift object storage. It involves adding middleware to collect trace data with unique IDs as requests pass through Swift components. Trace data including timing would be sent to a repository and correlated to reconstruct processing paths. Analysis tools would allow querying trace data and visualizing span trees to diagnose performance and identify bottlenecks across the distributed Swift infrastructure.
The document discusses HTTP and the client-server model used for web interactions. [1] The HTTP protocol uses a request-response model where a client like a web browser sends an HTTP request to a server, which holds web content and services. [2] The server then sends an HTTP response back to the client. [3] Key aspects covered include the structure of HTTP requests and responses, common request and response headers, status codes, and methods like GET and POST.
This document discusses validating JSON payloads in Mule applications. It explains that JSON is a lightweight data format that is easy for humans to read and write. The document also provides an example of a valid JSON payload structure. It then demonstrates a Mule flow that uses a json:is-json-filter component to validate incoming JSON payloads against a file inbound endpoint. If validation fails, it routes the message to a sub-flow that logs a rejection message. This allows validating JSON payloads and handling invalid ones gracefully.
Infrastructure as Code - Terraform - Devfest 2018Mathieu Herbert
1. Terraform allows users to define infrastructure as code and treat it like versioned code. It uses configuration files that are shared and versioned.
2. Terraform uses providers to manage cloud infrastructure through their APIs. It generates and executes plans to build, change, and destroy infrastructure based on the configuration files.
3. Terraform supports variables, modules, data sources, and workspaces to help manage infrastructure in different environments like dev, staging, and production in an automated and reusable way.
This document discusses how to collect big data into Hadoop using Apache Flume and Fluentd. It describes some problems with a poor man's approach to data collection and discusses the basic theories of divide and conquer and streaming to make data collection more efficient. It then provides an overview of how Apache Flume and Fluentd work, including their network topologies, configurations, and plugin systems. Examples are given of how Fluentd has been used at Treasure Data to collect and analyze REST API logs, backend logs, and Hadoop logs. The document concludes with a discussion of developing plugins for Fluentd.
Fluentd is a log collector that makes log collection easy. It allows users to collect, store, process, and visualize logs in JSON format. Fluentd works by using input plugins to collect logs, output plugins to export logs to different databases and storage systems, and buffer plugins to filter and route logs. Key features include its large number of plugins, support for JSON formatting, and ability to automatically handle failures and retries.
This document summarizes how to use a pre-commit hook with SVN to check code for syntax and coding standards before committing. The hook runs PHPCodeSniffer on files being committed, catching output to parse for errors. It addresses issues like having no local files by using a PHP stream wrapper to access file contents from the SVN repository instead of temporary files.
The document describes the OGCE WorkflowSuite, which provides tools for composing and executing scientific workflows. It includes the Generic Service Toolkit for wrapping applications as web services, the XRegistry for information sharing, and XBaya for graphical workflow composition and monitoring. Workflows can integrate various resources and be made flexible, dynamic, and interoperable. Example applications discussed are weather forecasting, genome analysis, and computational evaluation.
JSOP is a proposed browser-enabled HTTP-based protocol for efficiently exchanging fine-grained information. It involves serializing data to JSON, supports GET, PUT, and PATCH requests, and allows hierarchical resources and binary data. Sample requests and responses are provided to demonstrate retrieving and updating folder structures containing documents. PATCH requests use a JSON diff format to specify changes. Resources can also be manipulated via multipart POST requests wrapping data and diff payloads.
Tracing Micro Services with OpenTracingHemant Kumar
Tracing in the world of micro services has become a standard with people using distributed tracers like Zipkin, Jaeger, Appdash etc. But, with so many different tracers, its confusing to choose one tracer and then painful to replace a tracer. That's where OpenTracing comes in. OT provides a consistent, vendor-neutral API to allow users to choose whatever distributed tracer they need and can change the tracer with just an O(1) operation.
(ATS4-PLAT05) Accelrys Catalog: A Search Index for AEPBIOVIA
Accelrys Catalog is a new technology for searching protocol databases and usage logs. It uses the Apache SOLR search engine to index protocol and usage information. As a pro client developer it lets you quickly find example protocols that use a particular component, as a web port user you can find popular protocols in a particular scientific domain, and as an administrator you can search for user protocols that verify compliance with IT policies or to prepare for server migration or upgrade. In this talk we will discuss how to configure and administer the search index, the algorithms employed in the search, and how the different types of end-users can get the most out of this technology.
End-to-end Data Governance with Apache Avro and AtlasDataWorks Summit
This document discusses end-to-end data governance with Apache Avro and Apache Atlas at Comcast. It outlines how Comcast uses Avro for schema governance and Apache Atlas for data governance, including metadata browsing, schema registry, and tracking data lineage. Comcast has extended Atlas with new types for Avro schemas and customizations to better handle their hybrid environment and integrate platforms for comprehensive data governance.
Fluentd is an open source data collector designed for log aggregation and processing. It has a pluggable architecture that allows for flexible input, filtering, and output of log data. It is useful for log collection, processing, and forwarding to storage or analysis services in real-time.
Northern Engraving | Modern Metal Trim, Nameplates and Appliance PanelsNorthern Engraving
What began over 115 years ago as a supplier of precision gauges to the automotive industry has evolved into being an industry leader in the manufacture of product branding, automotive cockpit trim and decorative appliance trim. Value-added services include in-house Design, Engineering, Program Management, Test Lab and Tool Shops.
High performance Serverless Java on AWS- GoTo Amsterdam 2024Vadym Kazulkin
Java is for many years one of the most popular programming languages, but it used to have hard times in the Serverless community. Java is known for its high cold start times and high memory footprint, comparing to other programming languages like Node.js and Python. In this talk I'll look at the general best practices and techniques we can use to decrease memory consumption, cold start times for Java Serverless development on AWS including GraalVM (Native Image) and AWS own offering SnapStart based on Firecracker microVM snapshot and restore and CRaC (Coordinated Restore at Checkpoint) runtime hooks. I'll also provide a lot of benchmarking on Lambda functions trying out various deployment package sizes, Lambda memory settings, Java compilation options and HTTP (a)synchronous clients and measure their impact on cold and warm start times.
Session 1 - Intro to Robotic Process Automation.pdfUiPathCommunity
👉 Check out our full 'Africa Series - Automation Student Developers (EN)' page to register for the full program:
https://bit.ly/Automation_Student_Kickstart
In this session, we shall introduce you to the world of automation, the UiPath Platform, and guide you on how to install and setup UiPath Studio on your Windows PC.
📕 Detailed agenda:
What is RPA? Benefits of RPA?
RPA Applications
The UiPath End-to-End Automation Platform
UiPath Studio CE Installation and Setup
💻 Extra training through UiPath Academy:
Introduction to Automation
UiPath Business Automation Platform
Explore automation development with UiPath Studio
👉 Register here for our upcoming Session 2 on June 20: Introduction to UiPath Studio Fundamentals: https://community.uipath.com/events/details/uipath-lagos-presents-session-2-introduction-to-uipath-studio-fundamentals/
Your One-Stop Shop for Python Success: Top 10 US Python Development Providersakankshawande
Simplify your search for a reliable Python development partner! This list presents the top 10 trusted US providers offering comprehensive Python development services, ensuring your project's success from conception to completion.
5th LF Energy Power Grid Model Meet-up SlidesDanBrown980551
5th Power Grid Model Meet-up
It is with great pleasure that we extend to you an invitation to the 5th Power Grid Model Meet-up, scheduled for 6th June 2024. This event will adopt a hybrid format, allowing participants to join us either through an online Mircosoft Teams session or in person at TU/e located at Den Dolech 2, Eindhoven, Netherlands. The meet-up will be hosted by Eindhoven University of Technology (TU/e), a research university specializing in engineering science & technology.
Power Grid Model
The global energy transition is placing new and unprecedented demands on Distribution System Operators (DSOs). Alongside upgrades to grid capacity, processes such as digitization, capacity optimization, and congestion management are becoming vital for delivering reliable services.
Power Grid Model is an open source project from Linux Foundation Energy and provides a calculation engine that is increasingly essential for DSOs. It offers a standards-based foundation enabling real-time power systems analysis, simulations of electrical power grids, and sophisticated what-if analysis. In addition, it enables in-depth studies and analysis of the electrical power grid’s behavior and performance. This comprehensive model incorporates essential factors such as power generation capacity, electrical losses, voltage levels, power flows, and system stability.
Power Grid Model is currently being applied in a wide variety of use cases, including grid planning, expansion, reliability, and congestion studies. It can also help in analyzing the impact of renewable energy integration, assessing the effects of disturbances or faults, and developing strategies for grid control and optimization.
What to expect
For the upcoming meetup we are organizing, we have an exciting lineup of activities planned:
-Insightful presentations covering two practical applications of the Power Grid Model.
-An update on the latest advancements in Power Grid -Model technology during the first and second quarters of 2024.
-An interactive brainstorming session to discuss and propose new feature requests.
-An opportunity to connect with fellow Power Grid Model enthusiasts and users.
Conversational agents, or chatbots, are increasingly used to access all sorts of services using natural language. While open-domain chatbots - like ChatGPT - can converse on any topic, task-oriented chatbots - the focus of this paper - are designed for specific tasks, like booking a flight, obtaining customer support, or setting an appointment. Like any other software, task-oriented chatbots need to be properly tested, usually by defining and executing test scenarios (i.e., sequences of user-chatbot interactions). However, there is currently a lack of methods to quantify the completeness and strength of such test scenarios, which can lead to low-quality tests, and hence to buggy chatbots.
To fill this gap, we propose adapting mutation testing (MuT) for task-oriented chatbots. To this end, we introduce a set of mutation operators that emulate faults in chatbot designs, an architecture that enables MuT on chatbots built using heterogeneous technologies, and a practical realisation as an Eclipse plugin. Moreover, we evaluate the applicability, effectiveness and efficiency of our approach on open-source chatbots, with promising results.
"Scaling RAG Applications to serve millions of users", Kevin GoedeckeFwdays
How we managed to grow and scale a RAG application from zero to thousands of users in 7 months. Lessons from technical challenges around managing high load for LLMs, RAGs and Vector databases.
LF Energy Webinar: Carbon Data Specifications: Mechanisms to Improve Data Acc...DanBrown980551
This LF Energy webinar took place June 20, 2024. It featured:
-Alex Thornton, LF Energy
-Hallie Cramer, Google
-Daniel Roesler, UtilityAPI
-Henry Richardson, WattTime
In response to the urgency and scale required to effectively address climate change, open source solutions offer significant potential for driving innovation and progress. Currently, there is a growing demand for standardization and interoperability in energy data and modeling. Open source standards and specifications within the energy sector can also alleviate challenges associated with data fragmentation, transparency, and accessibility. At the same time, it is crucial to consider privacy and security concerns throughout the development of open source platforms.
This webinar will delve into the motivations behind establishing LF Energy’s Carbon Data Specification Consortium. It will provide an overview of the draft specifications and the ongoing progress made by the respective working groups.
Three primary specifications will be discussed:
-Discovery and client registration, emphasizing transparent processes and secure and private access
-Customer data, centering around customer tariffs, bills, energy usage, and full consumption disclosure
-Power systems data, focusing on grid data, inclusive of transmission and distribution networks, generation, intergrid power flows, and market settlement data
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-EfficiencyScyllaDB
Freshworks creates AI-boosted business software that helps employees work more efficiently and effectively. Managing data across multiple RDBMS and NoSQL databases was already a challenge at their current scale. To prepare for 10X growth, they knew it was time to rethink their database strategy. Learn how they architected a solution that would simplify scaling while keeping costs under control.
"$10 thousand per minute of downtime: architecture, queues, streaming and fin...Fwdays
Direct losses from downtime in 1 minute = $5-$10 thousand dollars. Reputation is priceless.
As part of the talk, we will consider the architectural strategies necessary for the development of highly loaded fintech solutions. We will focus on using queues and streaming to efficiently work and manage large amounts of data in real-time and to minimize latency.
We will focus special attention on the architectural patterns used in the design of the fintech system, microservices and event-driven architecture, which ensure scalability, fault tolerance, and consistency of the entire system.
In the realm of cybersecurity, offensive security practices act as a critical shield. By simulating real-world attacks in a controlled environment, these techniques expose vulnerabilities before malicious actors can exploit them. This proactive approach allows manufacturers to identify and fix weaknesses, significantly enhancing system security.
This presentation delves into the development of a system designed to mimic Galileo's Open Service signal using software-defined radio (SDR) technology. We'll begin with a foundational overview of both Global Navigation Satellite Systems (GNSS) and the intricacies of digital signal processing.
The presentation culminates in a live demonstration. We'll showcase the manipulation of Galileo's Open Service pilot signal, simulating an attack on various software and hardware systems. This practical demonstration serves to highlight the potential consequences of unaddressed vulnerabilities, emphasizing the importance of offensive security practices in safeguarding critical infrastructure.
Northern Engraving | Nameplate Manufacturing Process - 2024Northern Engraving
Manufacturing custom quality metal nameplates and badges involves several standard operations. Processes include sheet prep, lithography, screening, coating, punch press and inspection. All decoration is completed in the flat sheet with adhesive and tooling operations following. The possibilities for creating unique durable nameplates are endless. How will you create your brand identity? We can help!
"Choosing proper type of scaling", Olena SyrotaFwdays
Imagine an IoT processing system that is already quite mature and production-ready and for which client coverage is growing and scaling and performance aspects are life and death questions. The system has Redis, MongoDB, and stream processing based on ksqldb. In this talk, firstly, we will analyze scaling approaches and then select the proper ones for our system.
How information systems are built or acquired puts information, which is what they should be about, in a secondary place. Our language adapted accordingly, and we no longer talk about information systems but applications. Applications evolved in a way to break data into diverse fragments, tightly coupled with applications and expensive to integrate. The result is technical debt, which is re-paid by taking even bigger "loans", resulting in an ever-increasing technical debt. Software engineering and procurement practices work in sync with market forces to maintain this trend. This talk demonstrates how natural this situation is. The question is: can something be done to reverse the trend?
2. Topics Covered
• Request Processing Stages – Summary
• Processing the Request for the file Present in Document Root
• Processing the Web Application Request
• Processing the Oracle Weblogic server plugin request
• Processing the Reverse Proxy Request
NOTE: I have included the Request Processing and the Execution of Directives to the best of my
Understanding and Knowledge.
If there are any discrepancies, please feel free to share with me.
3. Request Processing Stages - Execution
Phase Default be Directives Comments
forced Executed
AuthTrans N/A All
NameTrans Yes Only One Either the matched directive or default.
PathCheck N/A All All PathCheck directives are processed.
Object Type Yes All After a MIME attribute has been set, it
cannot be changed.
Input N/A All All matched directives are processed.
Output N/A All All matched directives are processed.
Route N/A Only One Matched Directive will be processed.
Service Yes Only One Either the matched directive or default.
Error N/A All
Log N/A All All Directives are processed
6. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
pfx2dir
close the TCP/IP session after SSL Communications
were completed in older versions of IE Browwsers
document-root
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
AddLog
ALT es-internal
ALT cgi
ALT send-
precompressed
ALT compress-on-demand
7. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
pfx2dir Replaces a directory prefix in the requested URL with
a real directory name.
document-root Evaluated, but not true
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
AddLog
ALT es-internal
ALT cgi
ALT send-
precompressed
ALT compress-on-demand
8. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
pfx2dir Processing falls into the default case.
File location path is the Concatenation of Document
document-root root directory and URI from the request.
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
AddLog
ALT es-internal
ALT cgi
ALT send-
precompressed
ALT compress-on-demand
9. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
pfx2dir
Updates the ACL for this instance.
document-root
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
AddLog
ALT es-internal
ALT cgi
ALT send-
precompressed
ALT compress-on-demand
10. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
pfx2dir
URI did not contain any potential security risks so
processing continues.
document-root
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
AddLog
ALT es-internal
ALT cgi
ALT send-
precompressed
ALT compress-on-demand
11. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
pfx2dir
URI did not contain any extra path information, so the
PATH_INFO variable was not populated
document-root
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
AddLog
ALT es-internal
ALT cgi
ALT send-
precompressed
ALT compress-on-demand
12. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
pfx2dir
The requested resource was not a directory so the
resource path information remains unaltered.
document-root
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
AddLog
ALT es-internal
ALT cgi
ALT send-
precompressed
ALT compress-on-demand
13. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
pfx2dir The mime.types file defined in the server.xml is
evaluated. The server locates an extension of
document-root requested file and sets the Content-Type accordingly.
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
AddLog
ALT es-internal
ALT cgi
ALT send-
precompressed
ALT compress-on-demand
14. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
pfx2dir The type has already been defined and force-type
does not set enc or lang attributes. This directive is
document-root processed, but no changes occur.
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
AddLog
ALT es-internal
ALT cgi
ALT send-
precompressed
ALT compress-on-demand
15. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
pfx2dir This Directive matches the ObjectType Directives set
earlier. The send-file SAF is used to process and send
document-root the file to the client.
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
AddLog
ALT es-internal
ALT cgi
ALT send-
precompressed
ALT compress-on-demand
16. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
pfx2dir
The access log is updated to reflect the client request
and subsequent server response.
document-root
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
AddLog
ALT es-internal
ALT cgi
ALT send-
precompressed
ALT compress-on-demand
17. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
pfx2dir
document-root Directives Processed
check-acl
uri-clean
for a file from
find-pathinfo
find-index
Document Root
type-by-
extension
force-type
index-common
send-file
service-trace
AddLog
ALT es-internal
ALT cgi
ALT send-
precompressed Executed Successfully
Evaluated, but not true
ALT compress-on-demand Not Evaluated
19. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
nametrans-j2ee
pfx2dir close the TCP/IP session after SSL Communications
were completed in older versions of IE Browwsers
document-root
check-acl
uri-clean
find-pathinfo
find-index-j2ee
find-index
type-j2ee
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT service-j2ee
ALT es-internal
ALT cgi
ALT send-
precompressed
ALT compress-on-demand
20. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
nametrans-j2ee
pfx2dir
Determines whether the requested resource maps to
content that is hosted in a Java web application. It
document-root turns out to be true.
check-acl
uri-clean
find-pathinfo
find-index-j2ee
find-index
type-j2ee
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT service-j2ee
ALT es-internal
ALT cgi
ALT send-
precompressed
ALT compress-on-demand
21. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
nametrans-j2ee
pfx2dir URI did not contain any potential security risks so
processing continues.
document-root
check-acl
uri-clean
find-pathinfo
find-index-j2ee
find-index
type-j2ee
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT service-j2ee
ALT es-internal
ALT cgi
ALT send-
precompressed
ALT compress-on-demand
22. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
nametrans-j2ee
pfx2dir
URI did not contain any extra path information (found
after the filename) so the PATH_INFO variable was
document-root not populated
check-acl
uri-clean
find-pathinfo
find-index-j2ee
find-index
type-j2ee
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT service-j2ee
ALT es-internal
ALT cgi
ALT send-
precompressed
ALT compress-on-demand
23. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
nametrans-j2ee
pfx2dir
Implements welcome file processing for Java web
applications. It acts on URIs that map to directories
document-root within the Java web application
check-acl
uri-clean
find-pathinfo
find-index-j2ee
find-index
type-j2ee
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT service-j2ee
ALT es-internal
ALT cgi
ALT send-
precompressed
ALT compress-on-demand
24. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
nametrans-j2ee
pfx2dir The requested resource was not a directory so the
resource path information remains unaltered.
document-root
check-acl
uri-clean
find-pathinfo
find-index-j2ee
find-index
type-j2ee
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT service-j2ee
ALT es-internal
ALT cgi
ALT send-
precompressed
ALT compress-on-demand
25. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
nametrans-j2ee
pfx2dir
May set the value of the Content-Type request header
field when the request URI maps to a resource in a
document-root Java web application.
check-acl
uri-clean
find-pathinfo
find-index-j2ee
find-index
type-j2ee
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT service-j2ee
ALT es-internal
ALT cgi
ALT send-
precompressed
ALT compress-on-demand
26. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
nametrans-j2ee
pfx2dir
This directive is processed, but no changes occur.
document-root
check-acl
uri-clean
find-pathinfo
find-index-j2ee
find-index
type-j2ee
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT service-j2ee
ALT es-internal
ALT cgi
ALT send-
precompressed
ALT compress-on-demand
27. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
nametrans-j2ee
pfx2dir
The type has already been defined and force-type
does not set enc or lang attributes. This directive is
document-root processed, but no changes occur.
check-acl
uri-clean
find-pathinfo
find-index-j2ee
find-index
type-j2ee
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT service-j2ee
ALT es-internal
ALT cgi
ALT send-
precompressed
ALT compress-on-demand
28. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
nametrans-j2ee
pfx2dir Processes requests for resources in Java web
applications and returns a response to the client.
document-root
check-acl
uri-clean
find-pathinfo
find-index-j2ee
find-index
type-j2ee
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT service-j2ee
ALT es-internal
ALT cgi
ALT send-
precompressed
ALT compress-on-demand
29. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
nametrans-j2ee
pfx2dir The access log is updated to reflect the client request
and subsequent server response.
document-root
check-acl
uri-clean
find-pathinfo
find-index-j2ee
find-index
type-j2ee
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT service-j2ee
ALT es-internal
ALT cgi
ALT send-
precompressed
ALT compress-on-demand
30. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
nametrans-j2ee
pfx2dir
document-root
check-acl
Directives Processed
uri-clean
find-pathinfo
for a Web Application
find-index-j2ee
find-index
Request
type-j2ee
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT service-j2ee
ALT es-internal
ALT cgi
Executed Successfully
ALT send-
precompressed Evaluated, but not true
Not Evaluated
ALT compress-on-demand
33. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
assign-name
pfx2dir close the TCP/IP session after SSL Communications
were completed in older versions of IE Browwsers
document-root
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT
wl-proxy
MyAppServer
ALT
check-acl
es-internal
34. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
assign-name
pfx2dir
Process the directives in a named object.
document-root
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT
wl-proxy
MyAppServer
ALT
check-acl
es-internal
35. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
assign-name
pfx2dir
Replaces a directory prefix in the requested URL with
a real directory name.
document-root Evaluated, but not true
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT
wl-proxy
MyAppServer
ALT
check-acl
es-internal
36. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
assign-name
pfx2dir
Processing falls into the default case.
File location path is the Concatenation of Document
document-root root directory and URI from the request.
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT
wl-proxy
MyAppServer
ALT
check-acl
es-internal
37. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
assign-name
pfx2dir
Updates the ACL for this instance.
document-root
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT
wl-proxy
MyAppServer
ALT
check-acl
es-internal
38. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
assign-name
pfx2dir URI did not contain any potential security risks so
processing continues.
document-root
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT
wl-proxy
MyAppServer
ALT
check-acl
es-internal
39. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
assign-name
pfx2dir URI did not contain any extra path information, so the
PATH_INFO variable was not populated
document-root
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT
wl-proxy
MyAppServer
ALT
check-acl
es-internal
40. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
assign-name
pfx2dir The requested resource was not a directory so the
resource path information remains unaltered.
document-root
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT
wl-proxy
MyAppServer
ALT
check-acl
es-internal
41. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
assign-name
pfx2dir
The mime.types file defined in the server.xml is
evaluated. The server locates an extension of
document-root requested file and sets the Content-Type accordingly.
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT
wl-proxy
MyAppServer
ALT
check-acl
es-internal
42. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
assign-name
pfx2dir
The type has already been defined and force-type
does not set enc or lang attributes. This directive is
document-root processed, but no changes occur.
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT
wl-proxy
MyAppServer
ALT
check-acl
es-internal
43. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
assign-name
pfx2dir Delegated to serve dynamic pages, such as JSPs or
pages generated by Weblogic server.
document-root
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT
wl-proxy
MyAppServer
ALT
check-acl
es-internal
44. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
assign-name
pfx2dir The access log is updated to reflect the client request
and subsequent server response.
document-root
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT
wl-proxy
MyAppServer
ALT
check-acl
es-internal
45. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
assign-name
pfx2dir
document-root Directives Processed
check-acl
uri-clean for a Oracle Weblogic
find-pathinfo
find-index Server Request
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT
wl-proxy
MyAppServer
ALT
check-acl
es-internal Executed Successfully
Evaluated, but not true
Not Evaluated
48. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
map
pfx2dir close the TCP/IP session after SSL Communications
were completed in older versions of IE Browwsers
document-root
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT
proxy-retrieve
http:*
ALT set-origin-server
MyAppServer
ALT
check-acl
es-internal
49. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
map
pfx2dir
looks for a certain URL prefix in the URL that the
client is requesting. If map finds the prefix, it replaces
document-root the prefix with the mirror site prefix. Evaluated True.
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT
proxy-retrieve
http:*
ALT set-origin-server
MyAppServer
ALT
check-acl
es-internal
50. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
map
pfx2dir
Replaces a directory prefix in the requested URL with
a real directory name.
document-root Evaluated, but not true
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT
proxy-retrieve
http:*
ALT set-origin-server
MyAppServer
ALT
check-acl
es-internal
51. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
map
pfx2dir URI did not contain any potential security risks so
processing continues.
document-root
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT
proxy-retrieve
http:*
ALT set-origin-server
MyAppServer
ALT
check-acl
es-internal
52. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
map
pfx2dir URI did not contain any extra path information, so the
PATH_INFO variable was not populated
document-root
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT
proxy-retrieve
http:*
ALT set-origin-server
MyAppServer
ALT
check-acl
es-internal
53. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
map
pfx2dir The requested resource was not a directory so the
resource path information remains unaltered.
document-root
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT
proxy-retrieve
http:*
ALT set-origin-server
MyAppServer
ALT
check-acl
es-internal
54. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
map
pfx2dir
The mime.types file defined in the server.xml is
evaluated. The server locates an extension of
document-root requested file and sets the Content-Type accordingly.
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT
proxy-retrieve
http:*
ALT set-origin-server
MyAppServer
ALT
check-acl
es-internal
55. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
map
pfx2dir
The type has already been defined and force-type
does not set enc or lang attributes. This directive is
document-root processed, but no changes occur.
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT
proxy-retrieve
http:*
ALT set-origin-server
MyAppServer
ALT
check-acl
es-internal
56. Auth Name Path Object
Input Output Route Service Error Log
Trans Trans Check Type
match-browser
map
pfx2dir distributes the load across a set of homogeneous
HTTP origin servers
document-root
check-acl
uri-clean
find-pathinfo
find-index
type-by-
extension
force-type
index-common
send-file
service-trace
error-j2ee
AddLog
ALT
proxy-retrieve
http:*
ALT set-origin-server
MyAppServer
ALT
check-acl
es-internal