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  • Oracle Linux Delivers Top CPU Benchmark Results on Sun Blades

    - by sergio.leunissen
    From the Performance and Best Practices blog: Fresh SPEC CPU2006 results for Sun Blade X6275 M2 Server Modules running Oracle Linux 5.5. The highlights: The dual-node Sun Blade X6275 M2 server module, equipped with two Intel Xeon X5670 2.93 GHz processors per node and running the Oracle Enterprise Linux 5.5 operating system delivered the best SPECint_rate2006 and SPECfp_rate2006 benchmark results for all systems with Intel Xeon processor 5000 sequence. With a SPECint_rate2006 benchmark result of 679, the Sun Blade X6275 M2 server module, with two compute nodes per blade, delivers maximum performance for space constrained environments. Comparing Oracle's dual-node blade to HP's dual-node blade server, based on their single node performance, the Sun Blade X6275 M2 server module SPECfp_rate2006 score of 241 outperforms the best published HP ProLiant BL2X220c G5 server score by 3.2x. A single node of a Sun Blade X6275 M2 server module using 2.93 GHz Intel Xeon X5670 processors delivered 37% improvement in SPECint_rate2006 benchmark results and 22% improvement in SPECfp_rate2006 benchmark results compared to the previous generation Sun Blade X6275 server module. Both nodes of a Sun Blade X6275 M2 server module using 2.93 GHz Intel Xeon X5670 processors delivered 59% improvement on the SPECint_rate2006 benchmark and 40% improvement on the SPECfp_rate2006 benchmark compared to the previous generation Sun Blade X6275 server module.

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  • New Hands-On Labs For Oracle VM

    - by rickramsey
    I just spent some time walking through the labs that Christophe Pauliat and Olivier Canonge prepared to help you become familiar with Oracle VM. They are terrific. We will offer them for the first time at Oracle Open World. Because they require some pre-work and 16Gigs of memory, we are supplying the laptops for the participants. Lab 1: Deploying Infrastructure as a Service with Oracle VM Session ID: HOL9558 Tuesday October 2nd, 2012 10:15am – 11:15am Marriott Marquis - Salon 14/15 Planning and deployment of an infrastructure as a service (IaaS) environment with Oracle VM as the foundation. Storage capacity planning, LUN creation, network bandwidth planning, and best practices for designing and streamlining the environment so that it's easy to manage. Lab 2: Virtualize and Deploy Oracle Applications Using Oracle VM Templates Session ID: HOL9559 Tuesday October 2nd, 2012 11:45am – 12:45pm Marriott Marquis - Salon 14/15 How to deploy Oracle applications in minutes with Oracle VM Templates. Step-by-step lab proctored by field-experienced engineers and product experts. Covers: Find out what Oracle VM Templates are and how they work Deploy an actual Oracle VM Template for an Oracle Application Plan your deployment to streamline on going updates and upgrades Lab 3: x86 Enterprise Cloud Infrastructure with Oracle VM 3.x and Sun ZFS Storage Appliance Session ID: HOL 9870 Wednesday, 3 Oct, 2012 5:00 PM - 6:00 PM Marriott Marquis - Salon 14/15 This hands-on lab will demonstrate what Oracle’s enterprise cloud infrastructure for x86 can do, and how it works with Oracle VM 3.x. It covers: How to create VMs How to migrate VMs How to deploy Oracle applications quickly and easily with Oracle VM Templates How to use the Storage Connect plug-in for the Sun ZFS Storage Appliance Additional Virtualization Resources for Sysadmins Technical articles about virtualization Other resources about Oracle virtualization technologies More information about Oracle Open World. - Rick Website Newsletter Facebook Twitter

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  • Implementing SOA & Security with Oracle Fusion Middleware in your solution – partner webcast September 20th 2012

    - by JuergenKress
    Security was always one of the main pain points for the IT industry, and new security challenges has been introduced with the proliferation  of the service-oriented approach to building modern software. Oracle Fusion Middleware provides a wide variety of features that ease the building service-oriented solutions, but how these services can be secured? Should we implement the security features in each and every service or there’s a better way? During the webinar we are going to show how to implement non-intrusive declarative security for your SOA components by introducing the Oracle product portfolio in this area, such as Oracle Web Services Manager and Oracle Enterprise Gateway. Agenda: SOA & Web Services basics: quick refresher Building your SOA with Oracle Fusion Middleware: product review Common security risks in the Web Services world SOA & Web Services security standards Implementing Web Services Security with the Oracle products Web Services Security with Oracle – the big picture Declarative end point security with Oracle Web Services Manager Perimeter Security with Oracle Enterprise Gateway Utilizing the other Oracle IDM products for the advanced scenarios Q&A session Delivery Format This FREE online LIVE eSeminar will be delivered over the Web. Registrations received less than 24hours prior to start time may not receive confirmation to attend. Duration: 1 hour Register Now Send your questions and migration/upgrade requests partner.imc@beehiveonline.oracle.com Visit regularly our ISV Migration Center blog or Follow us @oracleimc to learn more on Oracle Technologies, upcoming partner webcasts and events. All content is made available through our YouTube - SlideShare - Oracle Mix. SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit  www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Mix Forum Technorati Tags: Technorati Tags: ISV migration center,SOA,IDM,SOA Community,Oracle SOA,Oracle BPM,BPM,Community,OPN,Jürgen Kress

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  • Accenture Foundation Platform for Oracle (AFPO) – Your pre-build & tested middleware platform

    - by JuergenKress
    The Accenture Foundation Platform for Oracle (AFPO) is a pre-built, tested reference application, common services framework and development accelerator for Oracle’s Fusion Middleware 11g product suite that can help to reduce development time and cost by up to 30 percent. AFPO is a unique accelerator that includes documentation, day one deliverables and quick start virtual machine images, along with access to a skilled team of resources, to reduce risk and cost while improving project quality. It can be delivered all at once or in stages, on-site, hosted, or as a cloud solution. Accenture recently released AFPO v5 for use with their clients. Accenture added significant updates in v5 including Day 1 images & documentation for Webcenter & ADF Mobile that are integrated with 30 other Oracle Middleware products that signifigantly reduced the services aspect to standing these products up. AFPO v5 also features rapid configuration and implementation capabilities for SOA/BPM integrated with Oracle WebCenter Portal, Oracle WebCenter Content, Oracle Business Intelligence, Oracle Identity Management and Oracle ADF Mobile.  AFPO v5 also delivers a starter kit for Oracle SOA Suite which builds upon the integration methodology, leading practices and extended tooling contained within the Oracle Foundation Pack. The combination of the AFPO starter kit and Foundation Pack jump-start and streamline Oracle SOA Suite implementation initiatives, helping to reduce the risk of deploying new technologies and making architectural decisions, so clients can ultimately reduce cost, risk and the time needed for an implementation.  You'll find more information at: Accenture's website:  www.accenture.com/afpo YouTube AFPO Telestration:  http://www.youtube.com/watch?v=_x429DcHEJs Press Release Brochure Contacts: [email protected] Patrick J Sullivan (Accenture – Global Oracle Technology Lead), [email protected] SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit  www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Mix Forum Technorati Tags: AFPO,Accenture,middleware platform,oracle middleware,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

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  • Descubre en una mañana todo lo que Oracle puede hacer por ti

    - by Noelia Gomez
    v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} En la actualidad, la tecnología está cambiando el mundo de una forma sin precedentes. La convergencia de novedades como la informática en la nube, los dispositivos móviles, las redes sociales, el Big Data y el «Internet de las cosas» está impulsando la innovación y revolucionando los antiguos modelos de negocio. ¿Cómo lograrán las empresas adaptarse a los cambios con rapidez sin poner en peligro el funcionamiento de la actividad comercial? Oracle siempre se ha puesto este reto y por ello queremos presentar en exclusiva para nuestros clientes las mayores novedades de nuestra gama de soluciones, el próximo 5 de Noviembre en el Oracle Day. En la parte de aplicaciones hablaremos de la oportunidad significativa de conseguir una posición de liderazgo en CX, ya que ofrecer una experiencia excelente está directamente vinculado con un aumento de las ventas. Cuanto más relevante y constante sea la experiencia de sus clientes, más probable es que compren. Disfrute de una experiencia única en este evento interactivo, donde podrá participar en debates con directivos de Oracle, ver vídeos y conocer experiencias de clientes, ampliar su red de contactos, asistir a demostraciones prácticas de productos, y un largo etcétera. Para más información acceda aquí. 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:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-family:"Calibri","sans-serif"; mso-ascii- mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi- mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}

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  • Oracle OpenWorld 2012?????WebLogic Server???3??????

    - by ???02
    ???????2012?9?30???10?4?(????)???4???????????????????????????Oracle OpenWorld 2012???????????????????????WebLogic Server????????????????????????????????????(Fusion Middleware?????????????????????????????)?????(???) ??????????????WebLogic Server?????? ??????Fusion Middleware??????????????????????????????????? ???????????OpenWorld??????WebLogic Server????????????????????????????(HTML5)???Oracle Database??????????3???????????????????????????? OpenWorld 2012?????????CEO????·??????????????·?????Oracle Cloud??????????SaaS?PaaS????IaaS???????????????? ??????????????????/?????????????????????????????????WebLogic Server????????????????????????????????????????·??????????????????????????????Oracle Exalogic Elastic Cloud?????????????????????????????????????????·???????????????????????? ???????????????·??????????·???????????????????????????????????????WebLogic Server?Oracle Enterprise Manager??????????????????????? ?????????????????????????????????·???????????????????????????????????????(???)????????????????????·???????????????????????????? ??????????·????????????????????????????????????????????????????????????????????Java EE????????????????????????·???????Oracle E-Business Suite????????????·???????????????????????????????????????????????????????????????????????? ??????????????????????????????????·????????????????????????????????????????????????????????????????????????????????????? ?WebLogic Server?Oracle Enterprise Manager?????????Exalogic?????????????????????????·????????????????????????????????????????????????????????????????????????????????????????????????????????OpenWorld?????????Exalogic???????????????????????/?????????????????????????????WebLogic Server?????????????????????????????????????(???) ?????????????????OpenWorld 2012???Java???????Oracle Developer Cloud Service???????????????·?????????????????????????·???????·??????????????????????????????·????·????????????????????????????Java??????????????????????????????????????????????????????????????????????????WebLogic Server????????????????? WebSockets?SSE???????Java EE???????? ????????Java??????????Java EE??????????????Java EE 7???????????????????????7???Java EE??????????????????·?????????????????????????????????????????????HTML5???????????????????????? ??????????Java EE??????????????WebLogic Server???????????12.1.2?????Java EE 7??????????Web???????????????????WebSockets???HTTP?????????????Server Sent Events(SSE)????????????????????????????OpenWorld 2012?????????WebSockets?SSE???????????????????????????Web???????????????????????????????????????????????????????????????? ???WebLogic Server?????????2013?????????????????Java EE 7??????????????????????Java?????????????????????????????????????WebLogic Server?????????????????????? ???WebLogic Server?????????????????Oracle TopLink DataService?????????????????????????????XML?JSON??????????????????????Java??????????????·????????????????????????????????????????????????????·????????????????????????? Oracle Database??????????? WebLogic Server???????????·??????????????????1???Oracle Database????????????????OpenWorld 2012?????????Oracle Database????????????????????? WebLogic Server????Oracle Real Application Clusters(RAC)?????????????????????????????????????Active GridLink for RAC??????????????????????????????????????????????????????????·?????????????Oracle RAC?????????????????·??????????????????????????????????????Oracle RAC????????????? OpenWorld 2012?????Active GridLink for RAC???????????????????????????????Application Continuity??????????????? ?????????????·???????????????Oracle RAC?????????????????????????????????????????????????????????????????Application Continuity?????JDBC???????????????????????????Oracle RAC??????????????????????????????????????????Oracle Coherence?????????????????????????????????·????????????????(???) ?????????????????·???????????????Java????????????WebLogic Server???????????????? ????????????????????????????????????????????/???????????????????WebLogic Server?????????????????????????? ??????·???????????????·????????????Java EE?????????????OpenWorld 2012????????WebLogic Server?????????????????????????????????????????????????????????????Java EE??????????????????????WebLogic Server????????????????????????????Java EE?????????????Java EE???????????????????????????(???) ????????·????????????????????????????????????Java EE????WebLogic Server?????????????????????????????????

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  • Soluciones Oracle para Servicios Sociales: Demo "El Ciudadano"

    - by alvaro.desantiago(at)oracle.com
    Las Soluciones Oracle mejoran la ejecución de los programas sociales de las Administraciones y el resultado obtenido por los ciudadanos. La Solución Oracle para Servicios Sociales permite a las Administraciones Públicas optimizar los resultados de las políticas sociales y maximizar la tasa de participación, através de la implantación de Siebel Case Management y Oracle Policy Automation.Les facilita, asimismo, compartir una visión única del ciudadano, gestionar los continuos cambios de políticas de mejora de los programas sociales y su prestación directa a los interesados.Oracle proporciona la solución de Servicios Sociales, para una variedad de áreas como son Beneficios Sociales, Empleo, Violencia de Género y Protección al Menor.

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  • Grant Ronald and Frank Nimphius Deliver Free advanced ADF training for partners

    - by Grant Ronald
    Calling all Oracle partners.  If you are looking to get the best out of your Oracle ADF investment then you might want to consider the following free ADF training.  Frank Nimphius and I will be delivering a 5 day advanced ADF course for partners in Portugal.  This will cover topics such as task flows, contextual events, advanced ADF business components, bindings, Groovy, ADF Faces and a whole lot more.  The training is on the 9th to the 13th of July in Portugal.  As you might expect, places are limited, especially since this is a FREE event to Oracle partners.  So get registered NOW!

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  • Oracle Tutor: Create Accessible Content for the Disabled Community

    - by emily.chorba(at)oracle.com
    For many reasons--legal, business, and ethical--Oracle recognizes the need for its applications, and our customers' and partners' products built with our tools, to be usable by the disabled community. The following features of Tutor Author and Publisher software facilitate the creation of accessible HTML content for the disabled community.TablesThe following formatting guidelines will ensure that Tutor documents containing tables will be accessible once they are converted to HTML.• Determine whether a table is a "data table" or whether you are using a table simply for formatting. If it's a data table, you must use a heading for each column, and you should format this heading row as "table heading" style and select Table > Heading Rows Repeat.• For non data tables, it is not necessary to include a heading row.GraphicsTo create accessible graphics, add a caption to the graphic. In Microsoft Office 2000 and greater, right-click on the graphic and select Format Picture > Web (tab) > Alternative Text or select the graphic then Format > Picture > Web (tab) Alternative Text. Enter the appropriate information in the dialog box.When a document containing a graphic with alternative text is converted to HTML by Tutor, the HTML document will contain the appropriate accessibility information.Javascript elementsThe tabbed format and other javascript elements in the HTML version of the Tutor documents may not be accessible to all users. A link to an accessible/printable version of the document is available in the upper right corner of all Tutor documents.Repetitive dataIf repetitive data such as the distribution section and the ownership section are causing accessibility issues with your Tutor documents, you can insert a bookmark in the appropriate location of the document, and, when the document is converted to HTML, the bookmark will be converted to an A NAME reference (also known as an internal link). With this reference, you can create a link in Header.txt that can be prepended to each Tutor document that allows the user to bypass repetitive sections. Tutor and Oracle ApplicationsRegarding accessibility, please check Oracle's website on accessibility http://www.oracle.com/accessibility/ to find out what version of E-Business Suite is certified to work with screen readers. Oracle Tutor 11.5.6A and greater works with screen readers such as JAWS.There is no certification between Oracle Tutor and Oracle Applications because there are no related dependencies. It doesn't matter which version of the Oracle Applications you are running. Therefore, it is possible to use Oracle Tutor with earlier versions of Oracle Applications.Oracle Business Process Converter and Oracle ApplicationsOracle Business Process Converter (OBPC) converts Visio, XPDL, and Tutor models to Oracle Business Process Architect and Oracle Business Process Management. The OBPC is one of a collection of plugins to Oracle JDeveloper. Please see the VPAT as the same considerations apply.Learn MoreFor more information about Tutor, visit Oracle.Com or the Tutor Blog. Post your questions at the Tutor Forum. Emily ChorbaPrinciple Product Manager Oracle Tutor & BPM

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  • Short on Time or Money? You Can Still Attend Oracle OpenWorld!

    - by Oracle OpenWorld Blog Team
    You might think you can only attend Oracle OpenWorld if you have 5 days of time, or have lots of money to spend, but that's definitely not the case. If you only have a day, or can only spend a few hours over a couple of days, Oracle OpenWorld can still be yours, and at a great value. The Discover pass will only cost you US$125, and here's what it will get you: Access to Oracle OpenWorld keynotes, with Oracle CEO Larry Ellison presenting on both Sunday, September 30 and Tuesday, October 2 Executive Solution Sessions Scene and Be Heard presentations Oracle Users Forum (Sunday, September 30) and Oracle User Groups Pavilion Exhibition Halls featuring hundreds of exhibitors and demos at Oracle OpenWorld, JavaOne, and MySQL Connect Oracle Technology Network Lounge Oracle Music Festival and It's A Wrap! Conference shuttles And much more! You really don't want to miss all of these opportunities to learn, network, and be part of the experience that is Oracle OpenWorld. So don't delay. Register online or in person for your Discover pass today. And have a great day or week at the conference!

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  • REGISTER TODAY: Oracle Linux and Oracle VM Virtual SysAdmin Day- July 15

    - by Zeynep Koch
    Are you just starting on Oracle Linux or do you still feel you are missing some knowledge on how to configure, install or patch your Oracle Linux? If you answered yes, this event for you. This is our second virtual sysadmin day for Oracle Linux and it had been hugely popular in the past. This is a hands-on experience for all those Sysadmins that are looking for a great training without leaving their office or home. You will learn to: Install Oracle Linux using RPM and yum repositories; create storage volumes, prepare block devices, work with filesystems Create and mount Btrfs in Oracle Linux, work with block devices and snapshots Come and join us on July 15, 9am-12pm Pacific Time for an informative and interactive session. See more details and register 

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  • Oracle Joins OpenDaylight Project, Plans to Integrate OpenDaylight SDN Capabilities Into Oracle Solaris

    - by CarylTakvorian-Oracle
    Good news for our Telco ISV partners who want to leverage virtualization technologies such as SDN and NFV: We just announced that Solaris 11.2 will integrate OpenDaylight SDN, and that Oracle will join the OpenDaylight project as a Silver member. The integration will allow customers to improve service quality and take advantage of apps-to-disk SLAs through compatibility with a wide range of SDN devices, applications and services. It will also allow them to use a common and open SDN platform with OpenStack to manage Oracle Solaris-based clouds. The OpenDaylight Project is a community-led and industry-supported open source platform to advance SDN and Network Functions Virtualization (NFV).

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  • How to monitor current output/receive queue length in Linux

    - by IZhen
    I want to check the capacity and performance of my network. Besides checking the txkB/s and rxkB/s via Sar, I'd also like to see the average queue length of the network interface(so that the average queueing time in the interface can be calculated). It seems that netstat can give a per socket queue length, is it possible to get a per interface statics(a bit like Network Interface\Output Queue Length in Windows)? A related and kind of reverse questions is How do I view the TCP Send and Receive Queue sizes on Windows? Thanks

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  • SMTP Remote Queue on Exchange 2003

    - by Adam
    We are currently using Windows Server 2003 R2 with Exchange 2003 and SolarWinds Exchange Monitor to monitor. A couple of weeks ago the SMTP remote queue began to build up and it got to about 150 messages in the queue when it began to go down. For the last couple of days the queue has been building up and it has now reached 450 messages. Is there anyway that i can clear this and is it anything that I need to worry about? Thanks guys!

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  • Send documents to printer without waiting for Vista to handle queue

    - by Greenleader
    I got a print server on our old printer. Vista has its own queue which presents a problem. I want to bypass this queue and send everything straight away to the printer so the print server deals with the queue and not Vista. Problem is when a second document is being printed from the same computer after first one. Vista is still waiting for info on finishing the first job even 5 minutes after it was REALLY finished. How do I get it so that I can send straight to the print server and not have Vista slow things down by trying to handle the queue itself?

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  • MOS Community rewards Ram Kasthuri w/ FREE OOW Pass!

    - by cwarticki
    Congratulations Ram Kasthuri on Receiving a Free Full Conference Pass to Oracle OpenWorld!  Thank you for helping other members through your participation in My Oracle Support Community My Oracle Support Community member Ram Kasthuri received a free Oracle OpenWorld Pass from the My Oracle Support Community in appreciation for his work in answering questions posted by other Community members. Ram, an independent consultant, is an Application Solution Architect with Canon. He has been a valued Oracle customer for over 13 years. Ram is an active member in several of the Oracle EBS communities. He has achieved the Expert Level of recognition through his active participation.   Ram described the value he receives from My Oracle Support Community when he said what “I like best about the communities is the vicarious learning from real business scenarios posted by other Community members. The questions are real opportunities to learn all things Oracle, and EBS especially.” Ram is one of those member's who answers more questions than he posts, so he must get a lot of that vicarious learning. Oracle Premier Support customers can get answers and learn from both peers who have faced similar situations and Oracle experts. Join us in My Oracle Support Community. Look for Ram this week at Oracle OpenWorld and join him in My Oracle Support Community when you return to work. And while you’re at Oracle OpenWorld, Oracle Customer Support Services invites you to expand your knowledge by meeting with Oracle Support experts. Learn more about our sessions and network opportunities today!

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  • Club Platinum 2010 ??! ~???:???????~

    - by Urakawa
    ?????Platinum Club??????????Platinum Club???ORACLE MASTER Platinum??????????????????????????????????????Platinum Club?????????????Club Platinum?(????????)????5?19??????????!   ??????Oracle Database?????????????????????????? ?????????? ?????????? ?????? ?? ???????????Platinum????????????????????????? ???????????????????3?????????(?????????? ?? ????? ????? ?????????????!)????Oracle?????! DB????????Oracle Database/Exadata ??7???????????3???????!?????????????????????????????? ???????Oracle Database 11g R2?????????ASM????????????(ACFS)???RAC One Node??????????????????????????USB???????????ACFS???????????!????????!????????!?????????????????????   ???????Oracle Exadata??Exadata Smart Flash Cache???Data Loading?????US?Oracle Corporation???????????????????????Smart Flash Cache??????DB?Flash Cache?????Data Loading????????????????????????????????????!??Tips???!?????????????????????????????????????????????????Oracle??????????????????????????!Oracle?????? Inside the Oracle Optimizer Kevin Closson's Oracle Blog   ???????????Oracle Exadata??Exadata Smart Scan???Exadata Hybrid Columnar Compression?????????????????????????????????????????????????????????????????????·?????????????IT?????????????????????????????????????????????????Oracle Database 11g: Real-Time SQL Monitoring?SQL Monitor active report?????????????!?????????   ????????!???????????????!????????????????????Platinum Club????????????????????????????Oracle Exadata??????????????????????????????????????????????????????m(_ _)m?????? Oracle Database 11g R2 ??????(PDF) (Platinum Club????)   ???????ORACLE MASTER??????????ORACLE MASTER?????????????????? ??????? ?????????????????ORACLE MASTER???update????????????Oracle Exadata?????????????!?Oracle Database 11g???????????????ORACLE MASTER Expert????Oracle E-Business Suite???DBA??????????????????????????????????????????Blog????????????????????????????   ????1????????????????????????????????Platinum of the Year????!~???~

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  • PTLQueue : a scalable bounded-capacity MPMC queue

    - by Dave
    Title: Fast concurrent MPMC queue -- I've used the following concurrent queue algorithm enough that it warrants a blog entry. I'll sketch out the design of a fast and scalable multiple-producer multiple-consumer (MPSC) concurrent queue called PTLQueue. The queue has bounded capacity and is implemented via a circular array. Bounded capacity can be a useful property if there's a mismatch between producer rates and consumer rates where an unbounded queue might otherwise result in excessive memory consumption by virtue of the container nodes that -- in some queue implementations -- are used to hold values. A bounded-capacity queue can provide flow control between components. Beware, however, that bounded collections can also result in resource deadlock if abused. The put() and take() operators are partial and wait for the collection to become non-full or non-empty, respectively. Put() and take() do not allocate memory, and are not vulnerable to the ABA pathologies. The PTLQueue algorithm can be implemented equally well in C/C++ and Java. Partial operators are often more convenient than total methods. In many use cases if the preconditions aren't met, there's nothing else useful the thread can do, so it may as well wait via a partial method. An exception is in the case of work-stealing queues where a thief might scan a set of queues from which it could potentially steal. Total methods return ASAP with a success-failure indication. (It's tempting to describe a queue or API as blocking or non-blocking instead of partial or total, but non-blocking is already an overloaded concurrency term. Perhaps waiting/non-waiting or patient/impatient might be better terms). It's also trivial to construct partial operators by busy-waiting via total operators, but such constructs may be less efficient than an operator explicitly and intentionally designed to wait. A PTLQueue instance contains an array of slots, where each slot has volatile Turn and MailBox fields. The array has power-of-two length allowing mod/div operations to be replaced by masking. We assume sensible padding and alignment to reduce the impact of false sharing. (On x86 I recommend 128-byte alignment and padding because of the adjacent-sector prefetch facility). Each queue also has PutCursor and TakeCursor cursor variables, each of which should be sequestered as the sole occupant of a cache line or sector. You can opt to use 64-bit integers if concerned about wrap-around aliasing in the cursor variables. Put(null) is considered illegal, but the caller or implementation can easily check for and convert null to a distinguished non-null proxy value if null happens to be a value you'd like to pass. Take() will accordingly convert the proxy value back to null. An advantage of PTLQueue is that you can use atomic fetch-and-increment for the partial methods. We initialize each slot at index I with (Turn=I, MailBox=null). Both cursors are initially 0. All shared variables are considered "volatile" and atomics such as CAS and AtomicFetchAndIncrement are presumed to have bidirectional fence semantics. Finally T is the templated type. I've sketched out a total tryTake() method below that allows the caller to poll the queue. tryPut() has an analogous construction. Zebra stripping : alternating row colors for nice-looking code listings. See also google code "prettify" : https://code.google.com/p/google-code-prettify/ Prettify is a javascript module that yields the HTML/CSS/JS equivalent of pretty-print. -- pre:nth-child(odd) { background-color:#ff0000; } pre:nth-child(even) { background-color:#0000ff; } border-left: 11px solid #ccc; margin: 1.7em 0 1.7em 0.3em; background-color:#BFB; font-size:12px; line-height:65%; " // PTLQueue : Put(v) : // producer : partial method - waits as necessary assert v != null assert Mask = 1 && (Mask & (Mask+1)) == 0 // Document invariants // doorway step // Obtain a sequence number -- ticket // As a practical concern the ticket value is temporally unique // The ticket also identifies and selects a slot auto tkt = AtomicFetchIncrement (&PutCursor, 1) slot * s = &Slots[tkt & Mask] // waiting phase : // wait for slot's generation to match the tkt value assigned to this put() invocation. // The "generation" is implicitly encoded as the upper bits in the cursor // above those used to specify the index : tkt div (Mask+1) // The generation serves as an epoch number to identify a cohort of threads // accessing disjoint slots while s-Turn != tkt : Pause assert s-MailBox == null s-MailBox = v // deposit and pass message Take() : // consumer : partial method - waits as necessary auto tkt = AtomicFetchIncrement (&TakeCursor,1) slot * s = &Slots[tkt & Mask] // 2-stage waiting : // First wait for turn for our generation // Acquire exclusive "take" access to slot's MailBox field // Then wait for the slot to become occupied while s-Turn != tkt : Pause // Concurrency in this section of code is now reduced to just 1 producer thread // vs 1 consumer thread. // For a given queue and slot, there will be most one Take() operation running // in this section. // Consumer waits for producer to arrive and make slot non-empty // Extract message; clear mailbox; advance Turn indicator // We have an obvious happens-before relation : // Put(m) happens-before corresponding Take() that returns that same "m" for T v = s-MailBox if v != null : s-MailBox = null ST-ST barrier s-Turn = tkt + Mask + 1 // unlock slot to admit next producer and consumer return v Pause tryTake() : // total method - returns ASAP with failure indication for auto tkt = TakeCursor slot * s = &Slots[tkt & Mask] if s-Turn != tkt : return null T v = s-MailBox // presumptive return value if v == null : return null // ratify tkt and v values and commit by advancing cursor if CAS (&TakeCursor, tkt, tkt+1) != tkt : continue s-MailBox = null ST-ST barrier s-Turn = tkt + Mask + 1 return v The basic idea derives from the Partitioned Ticket Lock "PTL" (US20120240126-A1) and the MultiLane Concurrent Bag (US8689237). The latter is essentially a circular ring-buffer where the elements themselves are queues or concurrent collections. You can think of the PTLQueue as a partitioned ticket lock "PTL" augmented to pass values from lock to unlock via the slots. Alternatively, you could conceptualize of PTLQueue as a degenerate MultiLane bag where each slot or "lane" consists of a simple single-word MailBox instead of a general queue. Each lane in PTLQueue also has a private Turn field which acts like the Turn (Grant) variables found in PTL. Turn enforces strict FIFO ordering and restricts concurrency on the slot mailbox field to at most one simultaneous put() and take() operation. PTL uses a single "ticket" variable and per-slot Turn (grant) fields while MultiLane has distinct PutCursor and TakeCursor cursors and abstract per-slot sub-queues. Both PTL and MultiLane advance their cursor and ticket variables with atomic fetch-and-increment. PTLQueue borrows from both PTL and MultiLane and has distinct put and take cursors and per-slot Turn fields. Instead of a per-slot queues, PTLQueue uses a simple single-word MailBox field. PutCursor and TakeCursor act like a pair of ticket locks, conferring "put" and "take" access to a given slot. PutCursor, for instance, assigns an incoming put() request to a slot and serves as a PTL "Ticket" to acquire "put" permission to that slot's MailBox field. To better explain the operation of PTLQueue we deconstruct the operation of put() and take() as follows. Put() first increments PutCursor obtaining a new unique ticket. That ticket value also identifies a slot. Put() next waits for that slot's Turn field to match that ticket value. This is tantamount to using a PTL to acquire "put" permission on the slot's MailBox field. Finally, having obtained exclusive "put" permission on the slot, put() stores the message value into the slot's MailBox. Take() similarly advances TakeCursor, identifying a slot, and then acquires and secures "take" permission on a slot by waiting for Turn. Take() then waits for the slot's MailBox to become non-empty, extracts the message, and clears MailBox. Finally, take() advances the slot's Turn field, which releases both "put" and "take" access to the slot's MailBox. Note the asymmetry : put() acquires "put" access to the slot, but take() releases that lock. At any given time, for a given slot in a PTLQueue, at most one thread has "put" access and at most one thread has "take" access. This restricts concurrency from general MPMC to 1-vs-1. We have 2 ticket locks -- one for put() and one for take() -- each with its own "ticket" variable in the form of the corresponding cursor, but they share a single "Grant" egress variable in the form of the slot's Turn variable. Advancing the PutCursor, for instance, serves two purposes. First, we obtain a unique ticket which identifies a slot. Second, incrementing the cursor is the doorway protocol step to acquire the per-slot mutual exclusion "put" lock. The cursors and operations to increment those cursors serve double-duty : slot-selection and ticket assignment for locking the slot's MailBox field. At any given time a slot MailBox field can be in one of the following states: empty with no pending operations -- neutral state; empty with one or more waiting take() operations pending -- deficit; occupied with no pending operations; occupied with one or more waiting put() operations -- surplus; empty with a pending put() or pending put() and take() operations -- transitional; or occupied with a pending take() or pending put() and take() operations -- transitional. The partial put() and take() operators can be implemented with an atomic fetch-and-increment operation, which may confer a performance advantage over a CAS-based loop. In addition we have independent PutCursor and TakeCursor cursors. Critically, a put() operation modifies PutCursor but does not access the TakeCursor and a take() operation modifies the TakeCursor cursor but does not access the PutCursor. This acts to reduce coherence traffic relative to some other queue designs. It's worth noting that slow threads or obstruction in one slot (or "lane") does not impede or obstruct operations in other slots -- this gives us some degree of obstruction isolation. PTLQueue is not lock-free, however. The implementation above is expressed with polite busy-waiting (Pause) but it's trivial to implement per-slot parking and unparking to deschedule waiting threads. It's also easy to convert the queue to a more general deque by replacing the PutCursor and TakeCursor cursors with Left/Front and Right/Back cursors that can move either direction. Specifically, to push and pop from the "left" side of the deque we would decrement and increment the Left cursor, respectively, and to push and pop from the "right" side of the deque we would increment and decrement the Right cursor, respectively. We used a variation of PTLQueue for message passing in our recent OPODIS 2013 paper. ul { list-style:none; padding-left:0; padding:0; margin:0; margin-left:0; } ul#myTagID { padding: 0px; margin: 0px; list-style:none; margin-left:0;} -- -- There's quite a bit of related literature in this area. I'll call out a few relevant references: Wilson's NYU Courant Institute UltraComputer dissertation from 1988 is classic and the canonical starting point : Operating System Data Structures for Shared-Memory MIMD Machines with Fetch-and-Add. Regarding provenance and priority, I think PTLQueue or queues effectively equivalent to PTLQueue have been independently rediscovered a number of times. See CB-Queue and BNPBV, below, for instance. But Wilson's dissertation anticipates the basic idea and seems to predate all the others. Gottlieb et al : Basic Techniques for the Efficient Coordination of Very Large Numbers of Cooperating Sequential Processors Orozco et al : CB-Queue in Toward high-throughput algorithms on many-core architectures which appeared in TACO 2012. Meneghin et al : BNPVB family in Performance evaluation of inter-thread communication mechanisms on multicore/multithreaded architecture Dmitry Vyukov : bounded MPMC queue (highly recommended) Alex Otenko : US8607249 (highly related). John Mellor-Crummey : Concurrent queues: Practical fetch-and-phi algorithms. Technical Report 229, Department of Computer Science, University of Rochester Thomasson : FIFO Distributed Bakery Algorithm (very similar to PTLQueue). Scott and Scherer : Dual Data Structures I'll propose an optimization left as an exercise for the reader. Say we wanted to reduce memory usage by eliminating inter-slot padding. Such padding is usually "dark" memory and otherwise unused and wasted. But eliminating the padding leaves us at risk of increased false sharing. Furthermore lets say it was usually the case that the PutCursor and TakeCursor were numerically close to each other. (That's true in some use cases). We might still reduce false sharing by incrementing the cursors by some value other than 1 that is not trivially small and is coprime with the number of slots. Alternatively, we might increment the cursor by one and mask as usual, resulting in a logical index. We then use that logical index value to index into a permutation table, yielding an effective index for use in the slot array. The permutation table would be constructed so that nearby logical indices would map to more distant effective indices. (Open question: what should that permutation look like? Possibly some perversion of a Gray code or De Bruijn sequence might be suitable). As an aside, say we need to busy-wait for some condition as follows : "while C == 0 : Pause". Lets say that C is usually non-zero, so we typically don't wait. But when C happens to be 0 we'll have to spin for some period, possibly brief. We can arrange for the code to be more machine-friendly with respect to the branch predictors by transforming the loop into : "if C == 0 : for { Pause; if C != 0 : break; }". Critically, we want to restructure the loop so there's one branch that controls entry and another that controls loop exit. A concern is that your compiler or JIT might be clever enough to transform this back to "while C == 0 : Pause". You can sometimes avoid this by inserting a call to a some type of very cheap "opaque" method that the compiler can't elide or reorder. On Solaris, for instance, you could use :"if C == 0 : { gethrtime(); for { Pause; if C != 0 : break; }}". It's worth noting the obvious duality between locks and queues. If you have strict FIFO lock implementation with local spinning and succession by direct handoff such as MCS or CLH,then you can usually transform that lock into a queue. Hidden commentary and annotations - invisible : * And of course there's a well-known duality between queues and locks, but I'll leave that topic for another blog post. * Compare and contrast : PTLQ vs PTL and MultiLane * Equivalent : Turn; seq; sequence; pos; position; ticket * Put = Lock; Deposit Take = identify and reserve slot; wait; extract & clear; unlock * conceptualize : Distinct PutLock and TakeLock implemented as ticket lock or PTL Distinct arrival cursors but share per-slot "Turn" variable provides exclusive role-based access to slot's mailbox field put() acquires exclusive access to a slot for purposes of "deposit" assigns slot round-robin and then acquires deposit access rights/perms to that slot take() acquires exclusive access to slot for purposes of "withdrawal" assigns slot round-robin and then acquires withdrawal access rights/perms to that slot At any given time, only one thread can have withdrawal access to a slot at any given time, only one thread can have deposit access to a slot Permissible for T1 to have deposit access and T2 to simultaneously have withdrawal access * round-robin for the purposes of; role-based; access mode; access role mailslot; mailbox; allocate/assign/identify slot rights; permission; license; access permission; * PTL/Ticket hybrid Asymmetric usage ; owner oblivious lock-unlock pairing K-exclusion add Grant cursor pass message m from lock to unlock via Slots[] array Cursor performs 2 functions : + PTL ticket + Assigns request to slot in round-robin fashion Deconstruct protocol : explication put() : allocate slot in round-robin fashion acquire PTL for "put" access store message into slot associated with PTL index take() : Acquire PTL for "take" access // doorway step seq = fetchAdd (&Grant, 1) s = &Slots[seq & Mask] // waiting phase while s-Turn != seq : pause Extract : wait for s-mailbox to be full v = s-mailbox s-mailbox = null Release PTL for both "put" and "take" access s-Turn = seq + Mask + 1 * Slot round-robin assignment and lock "doorway" protocol leverage the same cursor and FetchAdd operation on that cursor FetchAdd (&Cursor,1) + round-robin slot assignment and dispersal + PTL/ticket lock "doorway" step waiting phase is via "Turn" field in slot * PTLQueue uses 2 cursors -- put and take. Acquire "put" access to slot via PTL-like lock Acquire "take" access to slot via PTL-like lock 2 locks : put and take -- at most one thread can access slot's mailbox Both locks use same "turn" field Like multilane : 2 cursors : put and take slot is simple 1-capacity mailbox instead of queue Borrow per-slot turn/grant from PTL Provides strict FIFO Lock slot : put-vs-put take-vs-take at most one put accesses slot at any one time at most one put accesses take at any one time reduction to 1-vs-1 instead of N-vs-M concurrency Per slot locks for put/take Release put/take by advancing turn * is instrumental in ... * P-V Semaphore vs lock vs K-exclusion * See also : FastQueues-excerpt.java dice-etc/queue-mpmc-bounded-blocking-circular-xadd/ * PTLQueue is the same as PTLQB - identical * Expedient return; ASAP; prompt; immediately * Lamport's Bakery algorithm : doorway step then waiting phase Threads arriving at doorway obtain a unique ticket number Threads enter in ticket order * In the terminology of Reed and Kanodia a ticket lock corresponds to the busy-wait implementation of a semaphore using an eventcount and a sequencer It can also be thought of as an optimization of Lamport's bakery lock was designed for fault-tolerance rather than performance Instead of spinning on the release counter, processors using a bakery lock repeatedly examine the tickets of their peers --

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  • Challenges and Opportunities to Drive Change in the Healthcare System Explored at America’s Health Insurance Plans Exchange Conference and Institute 2013

    - by elaine blog
    The program theme at the June America’s Health Insurance Plans (AHIP) Exchange Conference and AHIP’s Institute 2013 was Transforming Our Health Care System: Navigating and Succeeding in the New Marketplace.  Topics included care delivery transformation, innovation for a new healthcare eco system, Health Insurance Exchanges, the nexus of consumerism, retail and healthcare, driving value through improved operations and leveraging technology, data and innovation to transform care. Oracle participated as a sponsor of both conferences, signaling the significant investment and activity Oracle continues to make in helping health plans, providers and government agencies become more efficient and more relevant in the healthcare market place. AHIP is a national trade association representing the health insurance industry. AHIP’s members provide health and supplemental benefits to more than 200 million Americans through employer-sponsored coverage, the individual insurance market and public programs such as Medicare and Medicaid.   AHIP advocates for public policies that expand access to affordable health care. Health plans are focusing on the Health Insurance Exchanges and the opportunities they offer to provide better access and higher quality healthcare.  With the opportunities come operational challenges to implementation and innovative technology solutions to consider.   At the Exchange Conference, Oracle hosted a breakfast symposium on “Strategies for Success:  Driving Business Transformation in the Growing Health Insurance Exchange Market”. With Health Insurance Exchanges as catalysts for change, attendees learned about how to achieve integration within an Exchange and deploy new business strategies to support health reform initiatives. Discussion covered steps and processes to successfully establish and implement enrollment systems, quote to card activities, program pricing, claims billing, automated claims processing and new customer service tools. Piyush Pushkar, COO of Benefitalign, an Oracle partner that provides solutions to adopt innovative business models for retail, HIX, consumer-centric health plan and benefits administration, spoke on the state of the Exchanges in the U.S. and the activities health plans are engaged in to support individuals entering the healthcare system, including sales automation, member enrollment automation/portals and integration strategies with the Exchanges. The Oracle and Benefitalign partnership allows seamless integration between a health plan enrollment solution with the HIX individual market and allows for the health plan to customize and characterize the offerings available to the HIX that may or may not be available through other channels.  This approach can benefit the health plan through separation of interests, but also because some state-run HIXs require such separation. Janice W. Young, Program Director, Payer IT Strategies, IDC Health Insights, reviewed a survey of health plans on their investment priorities for this last year as well as this year.  She also identified the 2013-2015 strategies of go/get to market with front end and compliance investments; leveraging existing business processes and internal technologies; and establishing best practices.  Of key interest to the audience was a reform era payer solutions platform overview mapping technologies to support the business operations. David Bonham of the Oracle Health Insurance organization moderated the panel and spoke on Oracle’s presence in healthcare and products for payers to help them drive efficiencies and gain a competitive advantage in an ever changing market. Oracle serves healthcare stakeholders with applications such as billing, rating and underwriting, analytics, CRM, enrollment, and products for processing of health insurance claims including pricing and benefits administration, as well as payment of providers through alternative, non-fee for service reimbursement methods. Oracle in Healthcare….Did you know? More than 80 healthcare payers run Oracle applications. More than 300 leading healthcare providers run Oracle applications. 10 out of the top 12 fortune Global 500 healthcare organizations run Oracle applications. For more information on Oracle solutions for healthcare payers, please visit oracle.com/insurance or these individual solution pages: Oracle Health Insurance Components Oracle Insurance Insbridge Rating and Underwriting Oracle Insurance Revenue Management and Billing Oracle Documaker Oracle Healthcare Oracle CRM Related Resources Webcast On Demand: Strategies for Success: Driving Business Transformation in the Growing Health Insurance Exchange Market Strategy Brief: Executing on the Individual Mandate: Opportunities and Challenges for Healthcare Payers White Paper: White paper: Navigating Alternative Provider Reimbursement Models of the Future Strategy Brief: Enterprise Rating Agility Improves Payer Response to Healthcare Reform Podcast: Technology Implications of Healthcare Reform Don’t forget to keep up with us year-round: Facebook: www.facebook.com/oracleinsurance Twitter: www.twitter.com/oracleinsurance YouTube: www.youtube.com/oracleinsurance

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  • 11???OTN?????????????&???? (10/24 ??)

    - by OTN-J Master
    ???????????????????????????????????????????????????????????????????????????? ???11????????????????????????????????????????????????????????????????????????????????????????????11?????????????????????????????????????????Oracle DBA & Developer Day??14?????????????????????????????????????????????????????????????????????????????????????????????????????????!10??????????? ?10/24???????? Oracle Database Appliance??? 11?6?(?)15:30 ~ 17:00 @ ??????????(??????)??????????????????????????????????·?????Oracle Database Appliance????????????????????????????????????????????????Oracle Database Appliance?????·???????????????·??????????????????????????Oracle Database Appliance????????????????? ?????!?????????????????? 11?7?(?)13:30 ~ 17:10 @  ??????????(??????)????????Oracle Database 11g Release2??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????·????????????????????????????? ???Java?3?????!Java?????? 11?12?(?)14:30 ~ 17:30 @  ??????????(??????)????????????????????????????????????·?????????????Java???????????????????Java???????????????????????????????????????????????????????????????????????? ?????????????????Java?????????????????????????????????????Java????????????????????????????? JPOUG Tech Talk Night #3 “Upgrade, Migrate and Consolidate to Oracle Database 12c(?)” 11?12?(?)19:00 ~20:30 @ ??????????(??·???) ???????? JPOUG??????????????????????????US?Oracle ????? 2?????Oracle Database 12c??????????????????????? ???????Oracle OpenWorld?????????????????????? ???????????Web??????????????????????? ??????????????????????????????????! ????! ???????? ~WebLogic Server???????????~ ]?1?] ???????????????11?13?(?)18:30 ~20:00 @ ?????? ????????????(??)?WebLogic Server ??????????????????Java???????????????Java EE??????WebLogic Server?JVM???????????????????????????????????????????????WebLogic Server???????????????????WebLogic Server?????????????????????????????????????11g(10.3.6)????12c(12.1.2)??????????????????????????????? ??????WebLogic Server???????????!Oracle DBA & Developer Day 2013 11?14?(?) @ ???????????(??·???)Oracle Database?Oracle WebLogic Server?Oracle Coherence?Oracle Solaris??????????????????????????????????????1?????????????????????????? ??????????????????????·????????????????????????????????6???????????????· Oracle Database - ???????·???????????????·????· Oracle Database - ??????·??????????· Oracle Database - ??????????· Oracle Database 12c?????? (Oracle University??)· Oracle Fusion Middleware????????· Oracle Solaris?Oracle Hardware????????? ">????!????????????????????????11?19?(?)14:30 ~ 16:50 @ ??????????(??????)??????????????????????????????????????????????????????????????????????????????????????????????????????? ???? ??????????????????????????????????????????????????????????????????????????????????????????????????????????E??????????????????????????????????????????????????????????? ????~!!?????????????????!~????????????~?presented by ???? 11?20?(?)18:30~20:00 @ ?????????? ???? ???????(??)????·??????????????????????????????????????????????????????????????!???????????????Oracle??????????????????????????????????Oracle Database ?????????????????????????????????????????Database Configuration Assitant??????????????????????????????????????????????? ??Oracle Database????????????????????????????????????????Database??(??·???·??????)???????????????????????!?????! ?????????/???????????? 11?21?(?)10:00 ~ 17:30 @ ??????????(??????)?Oracle Application Testing Suite??Web?????????????????????????????????????????????????????????????????????????????????????????????????????????????????Oracle Application Testing Suite?????????????????????????????????????????????????????Oracle Exadata ???? ???? 11?21?(?)13:30 ~ 17:30 @ ??????????(??????)11?28?(?)13:30 ~ 17:30 @ ?????? ????????????(??)?????????????????Oracle Exadata X3 Database In-Memory Machine???·????????????????????????????????????????????????????????????????????Oracle Exadata????????????????????????????????????????????????????????????????? ?! Click??????? in ?? ~90?????! Oracle Database 12c??? & Oracle Database ??????? ~11?22?(?)13:30~16:50 @  ???????? 406???????Oracle Database ??????????????????????????·????????????????????????????? Oracle Database12c ?????90?????????! ???????????? ~Oracle Database 12c ??? ??? ~11?27?(?)18:30 ~20:00 @ ?????????????????(???)Oracle ???????SQL????????????????????????????????????SQL?????????????????????Oracle Database 12c?????????????????????????????????????????????????????????Oracle Database 12c???????????????11g?????????????? ???????????35???? ~??????·??????&Oracle Database?????? ~11?29?(?)13:30 ~16:40 @ RCC?????? 7F 704???(??)?35?????????????????? Oracle?????????????·?????? ?Enterprise Manager???????????????Tips ?????????????????!?????????????????!!

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  • Java: Implement own message queue (threadsafe)

    - by derMax
    The task is to implement my own messagequeue that is thread safe. My approach: public class MessageQueue { /** * Number of strings (messages) that can be stored in the queue. */ private int capacity; /** * The queue itself, all incoming messages are stored in here. */ private Vector<String> queue = new Vector<String>(capacity); /** * Constructor, initializes the queue. * * @param capacity The number of messages allowed in the queue. */ public MessageQueue(int capacity) { this.capacity = capacity; } /** * Adds a new message to the queue. If the queue is full, it waits until a message is released. * * @param message */ public synchronized void send(String message) { //TODO check } /** * Receives a new message and removes it from the queue. * * @return */ public synchronized String receive() { //TODO check return "0"; } } If the queue is empty and I call remove(), I want to call wait() so that another thread can use the send() method. Respectively, I have to call notifyAll() after every iteration. Question: Is that possible? I mean does it work that when I say wait() in one method of an object, that I can then execute another method of the same object? And another question: Does that seem to be clever?

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  • Oracle Internet Directory 11.1.1.4 Certified with E-Business Suite

    - by Steven Chan
    Oracle E-Business Suite comes with native user authentication and management capabilities out-of-the-box. If you need more-advanced features, it's also possible to integrate it with Oracle Internet Directory and Oracle Single Sign-On or Oracle Access Manager, which allows you to link the E-Business Suite with third-party tools like Microsoft Active Directory, Windows Kerberos, and CA Netegrity SiteMinder.  For details about third-party integration architectures, see either of these article for EBS 11i and 12:In-Depth: Using Third-Party Identity Managers with E-Business Suite Release 12In-Depth: Using Third-Party Identity Managers with the E-Business Suite Release 11iOracle Internet Directory 11.1.1.4 is now certified with Oracle E-Business Suite Release 11i, 12.0 and 12.1.  OID 11.1.1.4 is part of Oracle Fusion Middleware 11g Release 1 Version 11.1.1.4.0, also known as FMW 11g Patchset 3.  Certified E-Business Suite releases are:EBS Release 11i 11.5.10.2 + ATG RUP 7 and higherEBS Release 12.0.6 and higherEBS Release 12.1.1 and higherOracle Internet Directory 11.1.1.3.0 can be integrated with two single sign-on solutions for EBS environments:With Oracle Single Sign-On Server 10g (10.1.4.3.0) with an existing Oracle E-Business Suite system (Release 11i, 12.0.x or 12.1.1) With Oracle Access Manager 10g (10.1.4.3) with an existing Oracle E-Business Suite system (Release 11i or 12.1.x)

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  • Oracle Linux Training Calendar

    - by Antoinette O'Sullivan
    The Oracle Linux System Administrator Curriculum is designed to provide you with the knowledge and skills necessary to effectively administer an Oracle Linux environment. These classes will help you prepare to install, configure, and manage your enterprise Linux environment as well as prepare you for the Oracle Linux Certification. You can take these courses as a: Live-Virtual event: Following the instructor-led classes from your own desk - no travel required. There is an extensive list of events on the schedule to suit different timezones. See full list on http://oracle.com/education/linux. In-Class event: Travel to an education center to take these classes. Below is a sample of in-class events on the schedule: Unix and Linux Essentials: This 3-day class is for those new to the linux operating system. You learn to manage files & directories from the command line, perform remote connections, file transfers & more.  Location  Date  Delivery Language  Nairobi, Kenya  3 December 2012  English  Riyadh, Saudia Arabia  5 January 2013  English  Cape Town, South Africa  9 January 2013  English  Durban, South Africa  9 January 2013  English  Johannesburg, South Africa  9 January 2013  English  Woodmead, South Africa  15 July 2013  English  Denver, United States  23 January 2013  English  Columbia, United States  2 January 2013  English  East Lansing, United States  9 January 2013  English  Roseville, United States  1 April 2013  English  Morrisville, United States  11 February 2013  English  Jakarta, Indonesia  26 December 2012  English  Kuala Lumpur, Malaysia  29 January 2013  English  Auckland, New Zealand  12 December 2012  English  Makati City, Philippines  14 January 2013  English  Singapore  13 February 2013  English  North Sydney, Australia  4 February 2013  English  Brisbane, Australia  29 April 2013  English  Melbourne, Australia  29 January 2013  English Oracle Linux System Administration: This 5 day course covers a broad range of Oracle Linux system administration tasks, from installing the operating system to preparing the system for Oracle Database. The course also provides an extensive hands-on experience for key system administration tasks. You will gain comprehensive skills in installing, configuring, and managing an Oracle Linux system as well as insight into ULN, Ksplice and UEK.  Location  Date  Delivery Language  Brussels, Belgium  26 November 2012  English  Windhof, Luxembourg  17 December 2012  English  Utrecht, Netherlands  11 February 2013  Dutch  Warsaw, Poland  25 February 2013  Polish  Gabarone, Botswana  22 April 2013  English  Nairobi, Kenya  10 December 2012  English  Johannesburg, South Africa  11 March 2013  English  Belmont, CA, United States  11 February 2013  English  Irvine, CA, United States  25 March 2013  English  Roseville, MN, United States  26 November 2013  English  Irving, TX, United States  14 January 2013  English  Jakarta, Indonesia  3 December 2012  English  Singapore  26 November 2012  English  Canberra, Australia  21 January 2013  English  Sydney, Australia  21 January 2013  English  Melbourne, Australia  11 February 2013  English To test your Oracle Linux System Administration skills, take the Oracle Linux 6 Implementation Essentials Certification Exam. For more information on the Oracle Linux Curriculum or to express interest in additional events, go to http://oracle.com/education/linux.

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  • EVENT RECAP: Oracle Day & Product Fair - Ft. Lauderdale

    - by cwarticki
    Are you attending any of the Oracle Days and other Events? They are fantastic!  Keep track of the Oracle Events by following @OracleEvents on Twitter.  Also, stay in the know by subscribing to one of the several Oracle Newsletters. Those will also keep you posted of upcoming in-person and webcast events. From the Oracle Events website, simply navigate to your geography and refine your options to locate what interests you. You can also perform keyword searches. Today, I had the opportunity to participate in the Oracle Day & Product Fair in Ft. Lauderdale, Florida  Thanks to those who stopped by to ask your support questions and watched me demo My Oracle Support features and best practices. (Bob Stanoch, Sales Consulting Manager giving the 2nd keynote address on Exadata below) 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; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} It was a pleasant surprise to run into my former Oracle colleague Josh Tieso.  Josh (pictured right) is Sr. Oracle DBA at United Healthcare. He used to work for Oracle Support years ago but for the last 6 years at UHC. Josh is a member of the ERP DBA team, working with Exalogic, Oracle ERP R12, & RAC. Along the exhibit/vendor row, I met with Marco Gangano, National Sales Manager at Mythics. It was great getting to meet Marco and I look forward to working with his company with regards to Support Best Practices. In addition, Lissette Paez (left) was representing TAM Training.  TAM Training is an Oracle University, award-winning training partner.  They cover training across the scope of Oracle products with 7 facilities in the U.S.  Lissette and I have done a couple of these Oracle Days before.  It's great to see familiar faces.  A little while ago, I was down in this area to work with Citrix with an onsite session on Support Best Practices.  Pablo Leon and Alberto Gonzalez (right)came to chat with me over at the Support booth.  They wanted to know when I was giving my session.  Unfortunately, not this time guys. I'm on booth duty only. Keep in touch. Many thanks to our sponsors: BIAS, Cloudera, Intel and TekStream Solutions.Come attend one of the many Oracle Days & other events planned for you. -Chris WartickiGlobal Customer Management

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  • Week 16: Integrate This - Introducing Oracle Enterprise Manager 11g

    - by sandra.haan
    Spring in New York City is a wonderful time of year, but if you're out walking around in Central Park it means you missed the most exciting thing happening in the city today -Oracle's announcement of the launch of Enterprise Manager 11g at the Guggenheim. You can catch-up on what you missed here and listen in as Judson talks about the partner opportunity with Enterprise Manager 11g: Learn how Oracle Enterprise Manager 11g can help you drive agility and efficiency through its unique, integrated IT management capabilities and check out the Enterprise Manager Knowledge Zone to get engaged with OPN. Learn more and get the full scoop from today's press release. Until the next time, The OPN Communications Team

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