Search Results

Search found 22352 results on 895 pages for 'oracle projects'.

Page 204/895 | < Previous Page | 200 201 202 203 204 205 206 207 208 209 210 211  | Next Page >

• Ein starker Partner: IGEPA IT-SERVICE GmbH

  - by Alliances & Channels Redaktion

  Unsere Oracle Partner in Deutschland sind national und international erfolgreich im Geschäft und punkten bei ihren Kunden mit maßgeschneiderten Lösungen. Sie stehen für durchdachte, stimmige IT-Konzepte, hohe Service-Kompetenz und vor allem für konsequente Qualität. Dabei ist jeder Partner einzigartig: jeder hat sein eigenes Erfolgsrezept mit Oracle entwickelt, jeder verfügt über besondere Experten und eigene Business Values. Daher ist auch jeder Oracle Partner auf seine Weise spezialisiert. Hier wollen wir Ihnen in einer neuen Serie einige ausgewählte Partner vorstellen, die uns Einblicke in ihre Arbeit, ihre Strategie und in spezielle Kompetenzen sowie Referenzen im Oracle Umfeld geben. Heute spricht unser A&C Kollege Stephan Weber mit Herrn Peter Mischok vom Partner IGEPA IT-SERVICE GmbH über dessen Erfolgsmodell. Film ab!

  Read the article

• can you have too many dto/bo - mapping method

  - by Fredou

  I have a windows service, 2 web services and a web interface that need to follow the same path (data wise). So I came up with two ways of creating my solution. My concern is the fact that the UI/WS/etc will have their own kind of DTO (let's say the model in ASP.Net MVC) that should be mapped to a DTO so the SL can then map it to a BO then mapping it to the proper EF6 DTO so that I can save it in a database. So I'm thinking of doing it this way to remove one level of mapping. Which one should I take? Or is there a 3rd solution?

  Read the article

• An invitation to join a JDeveloper and ADF productivity clinic (and more!) at KScope

  - by Chris Muir

  Would you like a chance to influence Oracle's decisions on tool usability and productivity? If you're attending ODTUG's Kaleidoscope conference this year in San Antonio, Oracle would like to invite you to participate in our Usability Activity Research and separately our JDeveloper and ADF Productivity Clinics with our experienced user experience teams.  The teams are keen to hear what you have to say about your experiences with our tools in general and specifically JDeveloper and ADF.  The details of each event are described below. Invitation to Usability Activity - Sunday June 24th to Wednesday June 27th Oracle is constantly working on new tools and new features for developers, and invites YOU to become a key part of the process!  As a special addition to Kscope 12, Oracle will be conducting onsite usability research in the Alyssum room, from Sunday June 24 to Wednesday June 27. Usability activities are scheduled ahead of time for participants' convenience.  If you would like to take part, please fill out this form to let us know of the session(s) that you would like to attend and your development experience. You will be emailed with your scheduled session before the start of the conference. JDeveloper and ADF Productivity Clinic - Thursday June 28th Are you concerned that Java, Oracle ADF or JDeveloper is difficult? Is JDeveloper making you jump through hoops?  Do you hate a particular dialog or feature of JDeveloper? Well, come and get things off your chest! Oracle is hosting a product management and user experience clinic where we want to hear about your issues and concerns. What's difficult to use?  What doesn't work the way you want, and how would you want it to work?  What isn't behaving like your current favorite tool?  If we can't help on you the spot, we'll take your feedback and use it to improve the product experience.  A great opportunity to get answers, or get improvements. Drop by the Alyssum room, anytime from 8:30 to 10:30 on Thursday, June 28. We look forward to seeing you at KScope soon! 

  Read the article

• Public Sector FMW Customer Tech Day in Reston, Tuesday Oct 7th

  - by BPMWarrior

  Have your heard? There is another PS FMW Customer Tech Day scheduled in the Oracle Reston office!                                                                                          Fusion Middleware Customer Tech Day                                                          October 7, 2014                                   Please join Oracle & Sofbang on Tuesday October 7th for our second Public Sector Oracle Fusion Middleware (OFMW) Customer Tech Day in Reston.   This Tech Day is designed with you the customer in mind. Come learn and share with other customers. This event will be centered on Mobility, App Advantage, WebCenter, SOA, BPM, Security and FMWaaS.   Sofbang enables customers to create, integrate and run agile intelligent business applications leveraging Oracle Fusion Middleware. Based out of Chicago, IL, Sofbang is recognized as an Oracle Platinum level Partner in the Oracle Partner Network. For more information on Sofbang, please visit www.sofbang.com   To confirm your attendance at this Event or for more information, please email [email protected]                                              

  Read the article

• Terminator Skull Crafted from Dollar Store Parts [Video]

  - by Jason Fitzpatrick

  Earlier this year we shared an Iron Man prop build made from Dollar Store parts. The same Dollar Store tinker is at it again, this time building a Terminator endoskull. James Bruton has a sort of mad tinker knack for finding odds and ends at the Dollar Store and mashing them together into novel creations. In the video below, he shows how he took a pile of random junk from the store (plastic bowls, cheap computer speakers, even the packaging the junk came in) and turned it into a surprisingly polished Terminator skull. Hit up the link below for the build in photo-tutorial format. Dollar Store Terminator Endoskull Build [via Make] How to Banish Duplicate Photos with VisiPic How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It?

  Read the article

• How can I discourage the use of Access?

  - by Greg Buehler

  Lets pretend that a very large company (revenue numbers with more than 8 figures) is looking to do a refresh on a software system, particularly the dashboard used by employees. This system was originally put together in the early 1990's to handle inventory tracking and storage across a variety of facilities (10+). Since this large company is now in the process of implementing some of these inventory processes with SAP they are in need of a major refresh. The existing system: Microsoft Access project performs dashboard duties Unique shipping/receiving configurations at different facilities require unique forms and queries within the Access project Uses 3rd party libraries referenced by Access to directly interface with at control system (read: motors, conveyors, and counters) Individual SQL Server 2000 instances (some traces of pre-update SQL Server 6.0 documents) at each facility The Issue: This system started as a home brewed inventory tracking scheme with a single internal sponsor who is still in charge of the technical direction. The original sponsor prescribing the desired deliverables that are being called for in the current RFP. The RFP describes a system based around a single Access project. Any suggestion that Access is ill suited for a project of this scope are shot down under the reasoning that "it works for the scope now". Are there any case studies, notices, or statements that can be used to disuade this potential customer from repeating their mistake? Does Microsoft make any statements directly about when it is highly recommended to ditch Access?

  Read the article

• Too many heap subpools might break the upgrade

  - by Mike Dietrich

  Recently one of our new upcoming Oracle Database 11.2 reference customers did upgrade their production database - a huge EBS system - from Oracle 9.2.0.8 to Oracle Database 11.2.0.2. They've tested very well, we've optimized the upgrade process, the recompilation timings etc.  But once the live upgrade was done it did fail in the JAVA component piece with this error: begin if initjvmaux.startstep('CREATE_JAVA_SYSTEM') then * ORA-29553: classw in use: SYS.javax/mail/folder ORA-06512: at "SYS.INITJVMAUX", line 23 ORA-06512: at line 5 Support diagnosis was pretty quick - and refered to:Bug 10165223 - ORA-29553: class in use: sys.javax/mail/folder during database upgrade But how could this happen? Actually I don't know as we have used the same init.ora setup on test and production. The only difference: the prod system has more CPUs and RAM. Anyway, the bug names as workarounds to either decrease the SGA to less than 1GB or decrease the number of heap subpools to 1. Finally this query did help to diagnose the number of heap subpools: select count(distinct kghluidx) num_subpools from x$kghlu where kghlushrpool = 1; The result was 2 - so we did run the upgrade now with this parameter set: _kghdsidx_count=1 And finally it did work well. One sad thing:After the upgrade did fail Support did recommend to restore the whole database - which took an additional 3-4 hours. As the ORACLE SERVER component has been already upgraded successfully at the stage where the error did happen it would have been fine to go on with the manual upgrade and start catupgrd.sql script. It would have been detected that the ORACLE SERVER is upgraded already and just picked up the non-upgraded components. The good news:Finally I had one extra slide to add to our workshop presentation

  Read the article

• Elofordult már, hogy nehezen tudta értelmezni milyen patch-et is javasolt a támogató mérnök?

  - by user552636

  Bevallom, Ügyfeleink bejelentéseinek monitorozása közben nem egyszer gondolkodóba estem, mit is jelentenek a PSE, MLR, One-off, és további gyönyöruséges kifejezések, melyeket a támogató mérnökök használnak. Nemrégiben bukkantam rá a My Oracle Suport-on a  Document ID 1430923.1 cikkre, melyben ezen kifejezések magyarázatát át tudjuk tekinteni. Szerencsére a leírásban szerepelnek a korábbi kifejezések is, mert én úgy látom vannak támogató mérnökök akik egyelore még a régi elnevezéseket használják. Ha már a javításokról esik szó, szeretném felhívni a figyelmet az Oracle Tech Error Correction Policy document-re is, mely nagyszeru áttekintést ad az Oracle bug javítási irányelveirol. Ebben a dokumentumban megtalálhatjuk a Release Schedule of Current Database Releases (Doc ID 742060.1)  és  Error Correction Support Timelines for Oracle Application Server (Fusion Middleware) (Doc ID 944866.1) cikkek hivatkozásait is melyeken belül akár az Adatbázis és Fusion Middleware termékek roadmap-jéig is eljuthatunk. Érdemes ezeket a cikkeket a My Oracle Support felületen kedvencnek megjelölni, hogy bármikor könnyedén elérhetok legyenek. A számunkra hasznos cikket a kedvencek közé a cikk címe melletti csillagra kattintva tehetjük kedvenceink közé és következo alkalommal a menüsorban talál csillagra kattintva varázsolhatjuk elo az alábbi képernyo részletek szerint. 

  Read the article

• AllSparkCube Packs 4,096 LEDs into a Giant Computer Controlled Display

  - by Jason Fitzpatrick

  LED matrix cubes are nothing new, but this 16x16x16 monster towers over the tiny 4x4x4 desktop variety. Check out the video to see it in action. Sound warning: the music starts off very loud and bass-filled; we’d recommend turning down the speakers if you’re watching from your cube. So what compels someone to build a giant LED cube driven by over a dozen Arduino shields? If you’re the employees at Adaptive Computing, you do it to dazzles crowds and show off your organizational skills: Every time I talk about the All Spark Cube people ask “so what does it do?” The features of the All Spark are the reason it was built and sponsored by Adaptive Computing. The Cube was built to catch peoples’ attention and to demonstrate how Adaptive can take a chaotic mess and inject order, structure and efficiency. We wrote several examples of how the All Spark Cube can demonstrate the effectiveness of a complex data center. If you’re interested in building a monster of your own, hit up the link below for more information, schematics, and videos. How Hackers Can Disguise Malicious Programs With Fake File Extensions Can Dust Actually Damage My Computer? What To Do If You Get a Virus on Your Computer

  Read the article

• Költözik a blog

  - by lsarecz

  Kedves Olvasó! A közelmúltban elhatároztuk, hogy az Oracle Hungary jelenleg muködo magyar nyelvu blogjait összevonjuk, és egy közös blogba publikál az összes szakérto kolléga. Ezzel remélhetoleg egy gyakran frissülo, hasznos szakmai tartalommal felöltött online napló születik, ami az eddigi egyébként is nagyszeru blogjainkat is felülmúlja. Az új Oracle Hungary Technology Blog itt található: https://blogs.oracle.com/hunoratech/

  Read the article

• Old Lock Retrofitted for Wireless and Key-free Entry

  - by Jason Fitzpatrick

  What do you do if the old key your landlord gave you is poor fit for your apartment’s lock? If you’re the geeky sort, you build a wireless unlocking module to do the work for you. Instructables user Rybitski writes: The key to my apartment never worked quite right because it is a copy of a copy of a copy. I am fairly certain that the dead bolt is original to the building and the property manager seems to have lost the original key years ago. As a result unlocking the door was always a pain. Changing the lock wasn’t an option, but eliminating the need to use a key was. To that end, he built the device seen in the video above. An Arduino Uno drives a servo which in turn opens the deadbolt. The whole thing is controlled by a simple wireless key fob. Hit up the link below for the full build guide including code. Key Fob Deadbolt [via Hack A Day] How To Delete, Move, or Rename Locked Files in Windows HTG Explains: Why Screen Savers Are No Longer Necessary 6 Ways Windows 8 Is More Secure Than Windows 7

  Read the article

• Register Now to the New Oracle Argus Safety 7 Implementation Boot Camp - Tokyo, Japan - Dec 10-13, 2013!

  - by Roxana Babiciu

  Oracle's Argus Safety 7 boot camp is an instructor-led training course which provides a good understanding of how Oracle Argus Safety Standard Edition and Oracle Argus Safety Japan products addresses complex pharmacovigilance requirements and helps ensure global regulatory compliance by enabling sound safety decisions. Oracle Argus Safety's advanced database helps ensure global regulatory compliance thus in turn enabling sound safety decisions. Read more here. 

  Read the article

• Convert Your Workspace to Standing Height for $22

  - by Jason Fitzpatrick

  If you’d love to try out a standing workstation but you don’t want to shell out $$$ to buy or build one, this simple $22 project will raise up your workspace surface on the cheap. All you need is a LACK side table, some shelf brackets, a shelf, and some screws. The side table goes on your desk, the monitors go on the side table, and the keyboard and mouse go on the shelf (mounted to the brackets that have been positioned at the perfect height for your forearms). Hit up the link below for more pictures, tips, and a downloadable build guide. IKEA Standing Desk for $22 [via Unpluggd] How to Banish Duplicate Photos with VisiPic How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It?

  Read the article

• Watch an End to End Value Chain Demo

  - by Pam Petropoulos

  Ever wonder how Oracle’s Value Chain solutions can deliver end to end value? Check out this demo video which outlines how Oracle solutions can improve business processes from product development through planning and across logistics for flawless execution. Click here to watch the video.     Click here to learn more about Oracle Supply Chain Management solutions.  

  Read the article

• Reaching to the Holy Grail of Data Management

  - by Irem Radzik

  Pervasive, continuous access to trusted data. That’s the ultimate goal of data management. It enables to leverage data as an asset to create value for customers and the organization. It creates the strong foundation needed to move the business forward. How you get there is also critical. As with all IT initiatives using high performance solutions with low cost of ownership is another key requirement in today’s IT world. Oracle's  data integration product strategy focuses on helping customers achieve this ultimate goal with high performance and low TCO.  At OpenWorld, we will be showing how Oracle Data Integration products help you reach your data management goals, considering new trends in information management, such as big data and cloud computing. We will also provide an update on the latest product releases, such as Oracle GoldenGate 11gR2. If you will be at OpenWorld, please join us on Monday Oct 1st 10:45am at Moscone West – 3005 to hear our VP of Product Development, Brad Adelberg, present "Future Strategy, Direction, and Roadmap of Oracle’s Data Integration Platform". The Data Integration track at OpenWorld covers variety of topics and speakers. In addition to product management of Oracle GoldenGate, Oracle Data Integrator, and Enteprise Data Quality presenting product updates and roadmap, we have several customer panels and stand-alone sessions featuring select customers such as St. Jude Medical, Raymond James, Aderas, Turkcell, Paychex, Comcast,  Ticketmaster, Bank of America and more. You can see an overview of Data Integration sessions here. If you are not able to attend OpenWorld, please check out our latest resources for Data Integration and Oracle GoldenGate. In the coming weeks you will see more blogs about our products’ new capabilities and what to expect at OpenWorld. I hope to see you at OpenWorld and stay in touch via our future blogs. Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;}

  Read the article

• Get Trained in Sun ZFS Storage 7000 Appliance

  - by mseika

  Oracle University has scheduled the following OPN Only course: Course: Sun ZFS Storage 7000 Appliance Installation, Administration & Hands-On Lab Dates: 23-27 Jun 2014 11-15 Aug 2014 6-10 Oct 2014 Location: Reading You will learn how to successfully describe, install, configure, maintain, administer, troubleshoot and upgrade Sun ZFS Storage 7000 software and hardware. There is a hands-on lab which will take you through a NAS head software restore session, often referred to as a FISHSTICK restore. More details and online registration Remember: your OPN discount will be applied to the standard price shown on Oracle University web pages. For assistance in booking and more information, contact the Oracle University Service Desk: eMail: [email protected] Telephone: 01 189 249 066

  Read the article

• Experience of some php projects.PHP PROJECT FLOW

  - by user106726

  I'm new to the terms PHP, JS, HTML..bt now I'm willing to apply for a php developer position in a company and before I face an interview I just want to make sure that I sound confident enough to take up the job.Could any one please help me with this.What are all the things I've to keep in mind before attending the interview? can anyone just share with me their project experiences so that I can tlk abt that? pls help me people

  Read the article

• DIY HDTV Antenna Sticks To Your Window without Blocking the View

  - by Jason Fitzpatrick

  This DIY fractal-based HDTV antenna is cheap, easy to craft, and can be stuck unobtrusively on your window for better signal gains. Courtesy of HTPC-DIY, this simple build uses aluminum foil, a printed fractal pattern, clear plastic, and some basic hardware to create a lightweight and transparent antenna you can affix to a window without significantly blocking light from entering the window. Hit up the link below for the full build details as well as designs for other DIY antennas. DIY Flexible Fractal Window HDTV Antenna [via Hack A Day] HTG Explains: What Is Windows RT and What Does It Mean To Me? HTG Explains: How Windows 8′s Secure Boot Feature Works & What It Means for Linux Hack Your Kindle for Easy Font Customization

  Read the article

• Why Should You Outsource Your Web Development Projects?

  Almost every online business seeks the help of web services providers to strengthen their web presence using services such as web design and Web development, Internet marketing, hosting, etc. The num... [Author: Smit Mathur - Web Design and Development - June 14, 2010]

  Read the article

• WebCenter Content Technical Resources

  - by John Klinke

  Some useful WebCenter Content technical resources that you might not be aware of: WebCenter Content Support's Twitter Account: Follow Oracle WebCenter Content Support on Twitter @OrcleWCCSupport to keep informed about webcasts, patches, new releases, tips and tricks, and more. Oracle WebCenter & ADF Architecture Team Blog: Frequent posts by the Oracle Fusion Middleware A-Team discussing WebCenter implementation and configuration topics.  

  Read the article

• Open Source Projects for Beginning Coders?

  - by MattDMo

  After working as a molecular biologist at the bench for many years, I lost my job last year and am thinking about a career change. I've been using open-source software and doing Linux system administration since the mid 90s, and have written/improved some small shell/Perl/PHP scripts, and am very comfortable building from source, but never progressed to creating non-trivial programs de novo. I want to move to actually learning real programming skills and contributing back to the community, with the possible eventual goal of getting into bioinformatics as a career in the future. I'm a stay-at-home dad now, so I have some time on my hands. I've done a lot of research on languages, and have settled on Python as my major focus for now. I'm set up on GitHub, but haven't forked anything yet. I've looked around OpenHatch some, but nothing really grabbed me. I've heard the advice to work on what you use/love, but that category is so broad that I'm having trouble finding any one thing to get started on. What are your suggestions for getting started? How do you pick a project that will welcome your (possibly amateurish) help? With a fairly limited skill set, how do you find a request that you can handle? What are common newbie mistakes to avoid? Any other advice?

  Read the article

• Applying to a company while personally working on a comparable project

  - by Developer Art

  That's going to be an unusual question but here it goes. I'm entertaining the thought to send my docs to a place which develops a large web project of a social type. Social meaning people, communities, interaction and all that usual stuff. The issue is that I myself am working on something that falls into the category of social in my private time. Now the question. Is it wise to apply there under these circumstances? I think there may be issues of intellectual ownership if I develop something similar that exists or will exist in that company's work. On the other hand, the web of full of social places (even this site is one of them), many of them utilize the same ideas and move in the same direction and it seems to work for everyone. It's hard to come up with something which hasn't been tried yet by somebody else so it's all basically reuse of the commonly available ideas and experience. What I'm working on is not a functional equivalent, it's rather largely off. There may be some intersections, but on a large scale this is not an equivalent. And whatever features might coincide, they already exist everywhere on the web anyway. Also technology stacks are entirely different so the issue with directly copying out parts of the code is probably not applicable. I plan to say it up front that I'm engaged in a personal project of mine and let them see if it represents a problem for them. What do you think? Am I making things up or is there really an issue?

  Read the article

• Docker vs ESXi for Startup Projects - Deploying Code for Dev Testing

  - by JasonG

  Why hello there little programmer dude! I have a question for you and all of your experience and knowledge. I have an ESXi whitebox that I built which is an 8 dude that sits in the corner. I made a mistake recently and took the key that had ESXi, formatted it and used it for something else. No big deal because the last project I worked on had stalled out. I'm about to pick up another project and now I need to spin up a whole bunch of stuff for CI, qa + db, ticket tracker, wikis etc etc. I've been hearing a lot about Docker recently and as this is just a consumer grade machine, I'm wondering if it may make more sense for me to use Docker on OpenOS and then put everything there - bamboo or hudson, jira, confluence, postgress for the tools to use, then a qa env. I can't really seem to find any documents that directly compare traditional VM infrastructure vs docker solutions and I'm wondering if it is fair to compare. Is there any reason why CoreOS w/ containers would be a strictly worse solution? Or do you have any insight into why I may want to stick with ESXi? I've looked on multiple occasions and can't find a good reason not to. I'm not going to run a production env on the server so I don't need to have HA if updating security or OS for example where esxi would allow me to restart one vm at a time. I can just shut the thing down and bring it back up if I need a reboot no problem. So what's up with this container stuff? Is it a fair replacement for ESXi? I'm guessing the atlassian products would run much better and my ram would go a lot farther using docker. Probably the CPU would run much cooler too and my expensive HDD space would be better utilized.

  Read the article

• Come see me @LISA

  - by mgerdts

  LISA '11 is just around the corner and once again includes an Oracle Solaris Summit the day before the main conference.  Please come to the summit and to as my esteemed colleagues and I introduce many of the great improvements found in Solaris 11. Even with a full day to talk about Solaris 11, we'll certainly be unable to get into the depth in the areas that concern you the most.  To get some face time with Oracle engineers, stop by the Oracle demo booth - I'll be there Wednesday from 2:00 - 4:00.

  Read the article

• Understanding the 'High Performance' meaning in Extreme Transaction Processing

  - by kyap

  Despite my previous blogs entries on SOA/BPM and Identity Management, the domain where I'm the most passionated is definitely the Extreme Transaction Processing, commonly called XTP.I came across XTP back to 2007 while I was still FMW Product Manager in EMEA. At that time Oracle acquired a company called Tangosol, which owned an unique product called Coherence that we renamed to Oracle Coherence. Beside this innovative renaming of the product, to be honest, I didn't know much about it, except being a "distributed in-memory cache for Extreme Transaction Processing"... not very helpful still.In general when people doesn't fully understand a technology or a concept, they tend to find some shortcuts, either correct or not, to justify their lack-of understanding... and of course I was part of this category of individuals. And the shortcut was "Oracle Coherence Cache helps to improve Performance". Excellent marketing slogan... but not very meaningful still. By chance I was able to get away quickly from that group in July 2007* at Thames Valley Park (UK), after I attended one of the most interesting workshops, in my 10 years career in Oracle, delivered by Brian Oliver. The biggest mistake I made was to assume that performance improvement with Coherence was related to the response time. Which can be considered as legitimus at that time, because after-all caches help to reduce latency on cached data access, hence reduce the response-time. But like all caches, you need to define caching and expiration policies, thinking about the cache-missed strategy, and most of the time you have to re-write partially your application in order to work with the cache. At a result, the expected benefit vanishes... so, not very useful then?The key mistake I made was my perception or obsession on how performance improvement should be driven, but I strongly believe this is still a common problem to most of the developers. In fact we all know the that the performance of a system is generally presented by the Capacity (or Throughput), with the 2 important dimensions Speed (response-time) and Volume (load) :Capacity (TPS) = Volume (T) / Speed (S)To increase the Capacity, we can either reduce the Speed(in terms of response-time), or to increase the Volume. However we tend to only focus on reducing the Speed dimension, perhaps it is more concrete and tangible to measure, and nicer to present to our management because there's a direct impact onto the end-users experience. On the other hand, we assume the Volume can be addressed by the underlying hardware or software stack, so if we need more capacity (scale out), we just add more hardware or software. Unfortunately, the reality proves that IT is never as ideal as we assume...The challenge with Speed improvement approach is that it is generally difficult and costly to make things already fast... faster. And by adding Coherence will not necessarily help either. Even though we manage to do so, the Capacity can not increase forever because... the Speed can be influenced by the Volume. For all system, we always have a performance illustration as follow: In all traditional system, the increase of Volume (Transaction) will also increase the Speed (Response-Time) as some point. The reason is simple: most of the time the Application logics were not designed to scale. As an example, if you have a while-loop in your application, it is natural to conceive that parsing 200 entries will require double execution-time compared to 100 entries. If you need to "Speed-up" the execution, you can only upgrade your hardware (scale-up) with faster CPU and/or network to reduce network latency. It is technically limited and economically inefficient. And this is exactly where XTP and Coherence kick in. The primary objective of XTP is about designing applications which can scale-out for increasing the Volume, by applying coding techniques to keep the execution-time as constant as possible, independently of the number of runtime data being manipulated. It is actually not just about having an application running as fast as possible, but about having a much more predictable system, with constant response-time and linearly scale, so we can easily increase throughput by adding more hardwares in parallel. It is in general combined with the Low Latency Programming model, where we tried to optimize the network usage as much as possible, either from the programmatic angle (less network-hoops to complete a task), and/or from a hardware angle (faster network equipments). In this picture, Oracle Coherence can be considered as software-level XTP enabler, via the Distributed-Cache because it can guarantee: - Constant Data Objects access time, independently from the number of Objects and the Coherence Cluster size - Data Objects Distribution by Affinity for in-memory data grouping - In-place Data Processing for parallel executionTo summarize, Oracle Coherence is indeed useful to improve your application performance, just not in the way we commonly think. It's not about the Speed itself, but about the overall Capacity with Extreme Load while keeping consistant Speed. In the future I will keep adding new blog entries around this topic, with some sample codes experiences sharing that I capture in the last few years. In the meanwhile if you want to know more how Oracle Coherence, I strongly suggest you to start with checking how our worldwide customers are using Oracle Coherence first, then you can start playing with the product through our tutorial.Have Fun !

  Read the article

< Previous Page | 200 201 202 203 204 205 206 207 208 209 210 211  | Next Page >