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• SQL SERVER – SQL Server High Availability Options – Notes from the Field #032

  - by Pinal Dave

  [Notes from Pinal]: When it is about High Availability or Disaster Recovery, I often see people getting confused. There are so many options available that when the user has to select what is the most optimal solution for their organization they are often confused. Most of the people even know the salient features of various options, but when they have to figure out one single option to use they are often not sure which option to use. I like to give ask my dear friend time all these kinds of complicated questions. He has a skill to make a complex subject very simple and easy to understand. Linchpin People are database coaches and wellness experts for a data driven world. In this 26th episode of the Notes from the Fields series database expert Tim Radney (partner at Linchpin People) explains in a very simple words the best High Availability Option for your SQL Server.  Working with SQL Server a common challenge we are faced with is providing the maximum uptime possible.  To meet these demands we have to design a solution to provide High Availability (HA). Microsoft SQL Server depending on your edition provides you with several options.  This could be database mirroring, log shipping, failover clusters, availability groups or replication. Each possible solution comes with pro’s and con’s.  Not anyone one solution fits all scenarios so understanding which solution meets which need is important.  As with anything IT related, you need to fully understand your requirements before trying to solution the problem.  When it comes to building an HA solution, you need to understand the risk your organization needs to mitigate the most. I have found that most are concerned about hardware failure and OS failures. Other common concerns are data corruption or storage issues.  For data corruption or storage issues you can mitigate those concerns by having a second copy of the databases. That can be accomplished with database mirroring, log shipping, replication or availability groups with a secondary replica.  Failover clustering and virtualization with shared storage do not provide redundancy of the data. I recently created a chart outlining some pros and cons of each of the technologies that I posted on my blog. I like to use this chart to help illustrate how each technology provides a certain number of benefits.  Each of these solutions carries with it some level of cost and complexity.  As a database professional we should all be familiar with these technologies so we can make the best possible choice for our organization. If you want me to take a look at your server and its settings, or if your server is facing any issue we can Fix Your SQL Server. Note: Tim has also written an excellent book on SQL Backup and Recovery, a must have for everyone. Reference: Pinal Dave (http://blog.sqlauthority.com)Filed under: Notes from the Field, PostADay, SQL, SQL Authority, SQL Performance, SQL Query, SQL Server, SQL Tips and Tricks, T SQL Tagged: Shrinking Database

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• OracleServiceBus+SOA in same server

  - by Manoj Neelapu

  Oracle Service Bus 11gR1 (11.1.1.3) supports running in same JVM as SOA. This tutorial covers on how to do create domain in of SOA+OSB combined to run in single JVM .For this tutorial we will use a flavor  WebLogic installer bundled with both OEPE and coherence components (eg oepe111150_wls1033_win32.exe). WebLogic installer bundled with coherence and OEPE components can be seen in the screen shot.Oracle Service Bus 11gR1 (11.1.1.3) has built-in caching support for Business Services using coherence. Because of this we will have to install coherence before  installing OSB.  To get SOAand OSB running in the same domain, we have to install the SOA and OSB on the above ORACLE_HOME. After installation we should see both the SOA and OSB homes has highlighted in red.We could also see the coherence components which is mandatory for OSB and optional OEPE also installed.                     Now we will execute RCU(ofm_rcu_win_11.1.1.3.0_disk1_1of1) to install the schema for SOA and OSB. New RCU contains OSB tables (WLI_QS_REPORT_DATA , WLI_QS_REPORT_ATTRIBUTE) gets loaded as part of SOAINFRA schema  After this step we will have to create soa+osb domain using config wizard. It is located under $WEBLOGIC_HOME\common\bin\config.* (.cmd or .sh as per your platform) .While creating a domain we will select options for SOA Suite  and Oracle Service Bus Extension-All Domain Topologies.We can also bundle Enterprise Manager in the same installation or in a different server. Here in this case we will use the enterprise manager in the same domain. So we selected the Enterprise Manager component also. There is another option for OSB  Oracle Service Bus Extension-Single server Domain Topology. This topology is for users who want to use OSB in single server configuration. Currently SOA doesn't support single server topology. So this topology cannot be used with SOA domain but can only be used for stand alone OSB installations.We can continue with domain configuration till we reach the below screen. Following steps are mandatory if we want to have the SOA and OSB run in same JVMwe should select Managed Server, Clusters and Machines as shown below   After this selection you should see a screen with two servers One managed server for OSB and one managed for SOA.  Since we would like to have both the servers in one managed server (one JVM) we will have to do one  

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• SOA+OSB in same JVM

  - by Manoj Neelapu

  Oracle Service Bus 11gR1 (11.1.1.3) supports running in same JVM as SOA. This tutorial covers on how to do create domain in of SOA+OSB combined to run in single JVM . For this tutorial we will use a flavor  WebLogic installer bundled with both OEPE and coherence components (eg oepe111150_wls1033_win32.exe). WebLogic installer bundled with coherence and OEPE components can be seen in the screen shot.Oracle Service Bus 11gR1 (11.1.1.3) has built-in caching support for Business Services using coherence. Because of this we will have to install coherence before  installing OSB.  To get soa and osb running in the same domain, we have to install the SOA and OSB on the above ORACLE_HOME. After installation we should see both the SOA and OSB homes has highlighted in red.We could also see the coherence components which is mandatory for OSB and optional OEPE also installed.Now we will execute RCU(ofm_rcu_win_11.1.1.3.0_disk1_1of1) to install the schema for SOA and OSB. New RCU contains OSB tables (WLI_QS_REPORT_DATA , WLI_QS_REPORT_ATTRIBUTE) gets loaded as part of SOAINFRA schema After this step we will have to create soa+osb domain using config wizard. It is located under $WEBLOGIC_HOME\common\bin\config.* (.cmd or .sh as per your platform) .While creating a domain we will select options for SOA Suite  and Oracle Service Bus Extension-All Domain Topologies.There is another option for OSB  Oracle Service Bus Extension-Single server Domain Topology. This topology is for users who want to use OSB in single server configuration. Currently SOA doesn't support single server topology. So this topology cannot be used with SOA domain but can only be used for stand alone OSB installations.We can continue with domain configuration till we reach the below screen. Following steps are mandatory if we want to have the SOA and OSB run in same JVMwe should select Managed Server, Clusters and Machines as shown below After this selection you should see a screen with two servers One managed server for OSB and one managed for SOA. Since we would like to have both the servers in one managed server (one JVM) we will have to do one important step here. We have to delete either of the servers and rename the other server with deleted server name.eg delete osb_server1 and rename the soa_server1 to osb_server1 or we can also delete soa_server1 and rename the osb_server1 to soa_server1After this steps proceed as as-usual . If we observe created domain we see only one managed server which contains components for both SOA and OSB ($DOMAIN_HOME/startManagedWebLogic_readme.txt). 

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• Space partitioning when everything is moving

  - by Roy T.

  Background Together with a friend I'm working on a 2D game that is set in space. To make it as immersive and interactive as possible we want there to be thousands of objects freely floating around, some clustered together, others adrift in empty space. Challenge To unburden the rendering and physics engine we need to implement some sort of spatial partitioning. There are two challenges we have to overcome. The first challenge is that everything is moving so reconstructing/updating the data structure has to be extremely cheap since it will have to be done every frame. The second challenge is the distribution of objects, as said before there might be clusters of objects together and vast bits of empty space and to make it even worse there is no boundary to space. Existing technologies I've looked at existing techniques like BSP-Trees, QuadTrees, kd-Trees and even R-Trees but as far as I can tell these data structures aren't a perfect fit since updating a lot of objects that have moved to other cells is relatively expensive. What I've tried I made the decision that I need a data structure that is more geared toward rapid insertion/update than on giving back the least amount of possible hits given a query. For that purpose I made the cells implicit so each object, given it's position, can calculate in which cell(s) it should be. Then I use a HashMap that maps cell-coordinates to an ArrayList (the contents of the cell). This works fairly well since there is no memory lost on 'empty' cells and its easy to calculate which cells to inspect. However creating all those ArrayLists (worst case N) is expensive and so is growing the HashMap a lot of times (although that is slightly mitigated by giving it a large initial capacity). Problem OK so this works but still isn't very fast. Now I can try to micro-optimize the JAVA code. However I'm not expecting too much of that since the profiler tells me that most time is spent in creating all those objects that I use to store the cells. I'm hoping that there are some other tricks/algorithms out there that make this a lot faster so here is what my ideal data structure looks like: The number one priority is fast updating/reconstructing of the entire data structure Its less important to finely divide the objects into equally sized bins, we can draw a few extra objects and do a few extra collision checks if that means that updating is a little bit faster Memory is not really important (PC game)

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• New Options for MySQL High Availability

  - by Mat Keep

  Data is the currency of today’s web, mobile, social, enterprise and cloud applications. Ensuring data is always available is a top priority for any organization – minutes of downtime will result in significant loss of revenue and reputation. There is not a “one size fits all” approach to delivering High Availability (HA). Unique application attributes, business requirements, operational capabilities and legacy infrastructure can all influence HA technology selection. And then technology is only one element in delivering HA – “People and Processes” are just as critical as the technology itself. For this reason, MySQL Enterprise Edition is available supporting a range of HA solutions, fully certified and supported by Oracle. MySQL Enterprise HA is not some expensive add-on, but included within the core Enterprise Edition offering, along with the management tools, consulting and 24x7 support needed to deliver true HA. At the recent MySQL Connect conference, we announced new HA options for MySQL users running on both Linux and Solaris: - DRBD for MySQL - Oracle Solaris Clustering for MySQL DRBD (Distributed Replicated Block Device) is an open source Linux kernel module which leverages synchronous replication to deliver high availability database applications across local storage. DRBD synchronizes database changes by mirroring data from an active node to a standby node and supports automatic failover and recovery. Linux, DRBD, Corosync and Pacemaker, provide an integrated stack of mature and proven open source technologies. DRBD Stack: Providing Synchronous Replication for the MySQL Database with InnoDB Download the DRBD for MySQL whitepaper to learn more, including step-by-step instructions to install, configure and provision DRBD with MySQL Oracle Solaris Cluster provides high availability and load balancing to mission-critical applications and services in physical or virtualized environments. With Oracle Solaris Cluster, organizations have a scalable and flexible solution that is suited equally to small clusters in local datacenters or larger multi-site, multi-cluster deployments that are part of enterprise disaster recovery implementations. The Oracle Solaris Cluster MySQL agent integrates seamlessly with MySQL offering a selection of configuration options in the various Oracle Solaris Cluster topologies. Putting it All Together When you add MySQL Replication and MySQL Cluster into the HA mix, along with 3rd party solutions, users have extensive choice (and decisions to make) to deliver HA services built on MySQL To make the decision process simpler, we have also published a new MySQL HA Solutions Guide. Exploring beyond just the technology, the guide presents a methodology to select the best HA solution for your new web, cloud and mobile services, while also discussing the importance of people and process in ensuring service continuity. This is subject recently presented at Oracle Open World, and the slides are available here. Whatever your uptime requirements, you can be sure MySQL has an HA solution for your needs Please don't hesitate to let us know of your HA requirements in the comments section of this blog. You can also contact MySQL consulting to learn more about their HA Jumpstart offering which will help you scope out your scaling and HA requirements.

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• One Week To Go: OTN Architect Day: Cloud Computing

  - by Bob Rhubart

  One week remains until OTN Architect Day: Cloud Computing kicks of at the spectacular Oracle HQ campus in Redwood Shores, CA. The event is free, and there is still time to register. When: Tuesday July 9, 2013 8:30am - 12:30pm Where: Oracle Conference Center350 Oracle Pkwy Redwood City, CA 94065 Register now. It's free! Here's the latest update to the event agenda: 8:30am - 9:00am Registration and Continental Breakfast 9:00am - 9:45am Keynote 21st Century IT | Dr. James Baty VP, Global Enterprise Architecture Program, Oracle Imagine a time long, long ago. A time when servers were certified and dedicated to specific applications, when anything posted on an enterprise web site was from restricted, approved channels, and when we tried to limit the growth of 'dirty' data and storage. Today, applications are services running in the muti-tenant hybrid cloud. Companies beg their customers to tweet them, friend them, and publicly rate their products. And constantly analyzing a deluge of Internet, social and sensor data is the key to creating the next super-successful product, or capturing an evil terrorist. The old IT architecture was planned, dedicated, stable, controlled, with separate and well-defined roles. The new architecture is shared, dynamic, continuous, XaaS, DevOps. This keynote session describes the challenges and opportunities that the new business / IT paradigms present to the IT architecture and architects. 9:45am - 10:30am Technical Session Oracle Cloud: A Case Study in Building a Cloud | Anbu Krishnaswami Enterprise Architect, Oracle Building a Cloud can be challenging thanks to the complex requirements unique to Cloud computing and the massive scale typically associated with Cloud. Cloud providers can take an Infrastructure as a Service (IaaS) approach and build a cloud on virtualized commodity hardware, or they can take the Platform as a Service (PaaS) path, a service-oriented approach based on pre-configured, integrated, engineered systems. This presentation uses the Oracle Cloud itself as a case study in the use of engineered systems, demonstrating how the technical design of engineered systems is leveraged for building PaaS and SaaS Cloud services and a Cloud management infrastructure. The presentation will also explore the principles, patterns, best practices, and architecture views provided in Oracle's Cloud reference architecture. 10:30 am -10:45 am Break 10:45am-11:30am Technical Session Database as a Service | Markus Michalewicz Senior Principal Product Manager Oracle Real Application Clusters (RAC) New applications are now commonly built in a Cloud model, where the database is consumed as a service, and many established business processes are beginning to migrate to database as a service (DBaaS). This adoption of DBaaS is made possible by the availability of new capabilities in the database that enable resource pooling, dynamic resource management, model-based provisioning, metered use, and effective quality-of-service controls. This session will examine the catalog of database services at a large commercial bank to understand how these capabilities are enabling DBaaS for a wide range of needs within the enterprise. 11:30 am - 12:00 pm Panel Q&A Dr. James Baty, Anbu Krishnaswami, and Markus Michalewicz respond to audience questions. Registration is free, but seating is limited, so register now.

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• One Week To Go: OTN Architect Day: Cloud Computing

  - by Bob Rhubart

  One week remains until OTN Architect Day: Cloud Computing kicks of at the spectacular Oracle HQ campus in Redwood Shores, CA. The event is free, and there is still time to register. When: Tuesday July 9, 2013 8:30am - 12:30pm Where: Oracle Conference Center350 Oracle Pkwy Redwood City, CA 94065 Register now. It's free! Here's the latest update to the event agenda: 8:30am - 9:00am Registration and Continental Breakfast 9:00am - 9:45am Keynote 21st Century IT | Dr. James Baty VP, Global Enterprise Architecture Program, Oracle Imagine a time long, long ago. A time when servers were certified and dedicated to specific applications, when anything posted on an enterprise web site was from restricted, approved channels, and when we tried to limit the growth of 'dirty' data and storage. Today, applications are services running in the muti-tenant hybrid cloud. Companies beg their customers to tweet them, friend them, and publicly rate their products. And constantly analyzing a deluge of Internet, social and sensor data is the key to creating the next super-successful product, or capturing an evil terrorist. The old IT architecture was planned, dedicated, stable, controlled, with separate and well-defined roles. The new architecture is shared, dynamic, continuous, XaaS, DevOps. This keynote session describes the challenges and opportunities that the new business / IT paradigms present to the IT architecture and architects. 9:45am - 10:30am Technical Session Oracle Cloud: A Case Study in Building a Cloud | Anbu Krishnaswami Enterprise Architect, Oracle Building a Cloud can be challenging thanks to the complex requirements unique to Cloud computing and the massive scale typically associated with Cloud. Cloud providers can take an Infrastructure as a Service (IaaS) approach and build a cloud on virtualized commodity hardware, or they can take the Platform as a Service (PaaS) path, a service-oriented approach based on pre-configured, integrated, engineered systems. This presentation uses the Oracle Cloud itself as a case study in the use of engineered systems, demonstrating how the technical design of engineered systems is leveraged for building PaaS and SaaS Cloud services and a Cloud management infrastructure. The presentation will also explore the principles, patterns, best practices, and architecture views provided in Oracle's Cloud reference architecture. 10:30 am -10:45 am Break 10:45am-11:30am Technical Session Database as a Service | Markus Michalewicz Senior Principal Product Manager Oracle Real Application Clusters (RAC) New applications are now commonly built in a Cloud model, where the database is consumed as a service, and many established business processes are beginning to migrate to database as a service (DBaaS). This adoption of DBaaS is made possible by the availability of new capabilities in the database that enable resource pooling, dynamic resource management, model-based provisioning, metered use, and effective quality-of-service controls. This session will examine the catalog of database services at a large commercial bank to understand how these capabilities are enabling DBaaS for a wide range of needs within the enterprise. 11:30 am - 12:00 pm Panel Q&A Dr. James Baty, Anbu Krishnaswami, and Markus Michalewicz respond to audience questions. Registration is free, but seating is limited, so register now.

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• WebCenter Customer Spotlight: Fundação Petrobras de Seguridade Social

  - by me

  Author: Peter Reiser - Social Business Evangelist, Oracle WebCenter Solution Summary Fundação Petrobras de Seguridade Social (PetroS) is a Brazilian nonprofit organization pension fund serving 152 private companies with more then 145,000 plan participants and  managing a portfolio of  US$35.9 billion in equity. PetroS business objective was to implement a robust and flexible online solution to enable the foundation to successfully compete in the pension marketplace. PetroS implemented a robust, flexible and highly available database solution based on Oracle Database 11g, Enterprise Edition and modernized the company’s Web portal using Oracle WebCenter Suite.  The solution enables PetroS to make an average of 5,000 online loans per month to its 110,000 qualifying participants and supports 2,000 online consultations daily. Company ProfileFundação Petrobras de Seguridade Social (Petrobras Social Security Foundation)—better known as PetroS—is a pension fund founded in the 1970s to pay supplementary retirement benefits to Petrobras employees. Later, the foundation expanded its market to include 152 private companies, including Sanasa, Repsol YPF and Alesat. The Foundation, a nonprofit organization, has more than 145,000 plan participants, US$35.9 billion in equity, and a loan portfolio of US$730 million. Business ChallengesPetroS business objectives were to implement a robust and flexible solution to enable the foundation to successfully compete in the pension marketplace without affecting its monthly payments to 60,000 beneficiaries and to extend service delivery through the Web to better serve the fund’s more than 145,000 participants. Solution DeployedPetroS worked with Oracle Consulting to implement a robust, flexible and high available database solution based on Oracle Database 11g, Enterprise Edition and modernized the company’s Web portal using Oracle WebCenter Suite, enabling PetroS to deliver more flexible services to pension plan participants. Business ResultsThe solution enables PetroS to make an average of 5,000 online loans per month to its 110,000 qualifying participants and supports 2,000 online consultations daily. “The combination of Oracle Database 11g and Oracle WebCenter Suite has helped us deliver faster and better service for over 130,000 clients who participate in the 96 supplementary pension plans we currently offer. It has certainly helped to fuel our growth.” Newton Carneiro da Cunha, Diretor Administrativo, Fundação Petrobrás de Seguridade Social           Additional Information PetroS Customer Snapshot Oracle WebCenter Suite Oracle Database 11g, Enterprise Edition Oracle Real Application Clusters Oracle Diagnostics Pack Oracle Tuning Pack Oracle Consulting

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• links for 2010-12-22

  - by Bob Rhubart

  @hajonormann: BPM: Top Seven Architectural Topics in 2010 Oracle ACE Director Hajo Normann offers details on how to design a BPM/SOA solution including: modeling human interaction, improving BPM models, orchestrating composed services, central task management, new approaches for business-IT alignment, solutions for non-deterministic processes, and choreography. (tags: oracle otn soasymposium infoq soa bpm) InfoQ: Simplicity, The Way of the Unusual Architect Dan North talks about the tendency developers-becoming-architects have to create bigger and more complex systems. Without trying to be simplistic, North argues for simplicity, offering strategies to extract the simple essence from complex situations. (tags: ping.fm) Fun with Sun Ray, 3D, Oracle VM x86 and SRIOV (Wim Coekaerts Blog) "One of the things I like about my job is that I get to play around with stuff and make use of the technologies we work on in my teams. Sort of my own little playground." - Wim Coekaerts (tags: oracle otn virtualization oraclevm) Oracle VM VirtualBox 4.0.0 Released! (Oracle's Virtualization Blog) And you were worried about what to get that special someone for Christmas... (tags: oracle otn virtualization virtualbox) Virtual Developer Day: Oracle WebLogic Server & Java EE (#OTNVDD) (Oracle Technology Network Blog (aka TechBlog)) "Virtual Developer Day is back with a vengeance! On Feb. 1, login to learn how Oracle WebLogic Server enables a whole new level of productivity for enterprise developers." Registration is open. (tags: oracle otn events webinar java) New Coherence 3.6 Oracle University Course (Cristóbal Soto's Blog) Cristóbal Soto shares information on the "Oracle Coherence 3.6: Share and Manage Data in Clusters" course now available through Oracle University. (tags: oracle otn grid coherence) The Aquarium: Oracle WebLogic Server & Java EE developer day "Oracle WebLogic is well on its way to contribute to the general Java EE 6 momentum and the OTN Blog has just announced a Virtual Developer Day for Oracle WebLogic." (tags: oracle otn weblogic java) Enterprise 2.0 Use Cases for Semantic Web (Reiser 2.0) "How can an enterprise improve the efficiency and effectiveness of their Knowledge and Community model leveraging semantic technologies and social networking dynamics?" - Peter Reiser (tags: oracle otn enterprise2.0 semanticweb) John Gøtze: European Interoperability Framework 2.0 "This week, the European Commission announced an updated interoperability policy in the EU. The Commission has committed itself to adopt a Communication that introduces the European Interoperability Strategy (EIS) and an update to the European Interoperability Framework (EIF)..." - John Gøtze (tags: entarch Interoperability) Andy Mulholland: Maybe Web 3.0 is quite understandable – and a natural result "The idea of Web 1.0 = content, Web 2.0 = people and Web 3.0 = services has a nice symmetrical feel to it, in fact it feels basically right as such a definition would include the two other major definitions as well. So if we put these things all together what picture do we see?" - Andy Mulholland (tags: web2.0 web3.0) Ken Downs: A Working Definition of Business Logic, with Implications for CRUD Code "The Wikipedia entry on 'Business Logic' has a wonderfully honest opening sentence stating that 'Business logic, or domain logic, is a non-technical term...'"  (tags: businesslogic crud)

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• Shrink NTFS Windows 7 Partition with GParted

  - by user15961

  I am running a dual-boot system with Windows 7 and Ubuntu 10.10. Initially I allocated about 20GB for my Ubuntu partition; however, I quickly ran out of that space and am now looking to expand my partition. Currently my NTFS partition (450GB) has about 130GB of free space. I tried using GParted to shrink the partition but encountered the following error. I booted into windows so I could run chkdsk but the countdown freezes at 1 upon reboot. I tried multiple methods to resolve that issue but nothing seems to work. Finally I gave up, and now I just want to know what is the best way for me to force GParted to shrink the partition regardless of the errors. I don't really have anything important and I don't mind risking the data. I just don't want to wipe the entire NTFS partition because I don't have a Windows install CD and might require Windows later on for some programs. I tried using sudo ntfsresize but that spews out the same error as GParted... Any ideas? Check and repair file system (ntfs) on /dev/sda2 00:00:09 ( ERROR ) calibrate /dev/sda2 00:00:00 ( SUCCESS ) path: /dev/sda2 start: 36944325 end: 976771119 size: 939826795 (448.14 GiB) check file system on /dev/sda2 for errors and (if possible) fix them 00:00:09 ( ERROR ) ntfsresize -P -i -f -v /dev/sda2 ntfsresize v2.0.0 (libntfs 10:0:0) Device name : /dev/sda2 NTFS volume version: 3.1 Cluster size : 4096 bytes Current volume size: 481191318016 bytes (481192 MB) Current device size: 481191319040 bytes (481192 MB) Checking for bad sectors ... Checking filesystem consistency ... Cluster 63468 is referenced multiple times! Cluster 63469 is referenced multiple times! Cluster 63465 is referenced multiple times! Cluster 63466 is referenced multiple times! Cluster 63467 is referenced multiple times! Cluster 165621 is referenced multiple times! Cluster 165622 is referenced multiple times! Cluster 165623 is referenced multiple times! Cluster 165624 is referenced multiple times! ERROR: Filesystem check failed! ERROR: 9 clusters are referenced multiply times. NTFS is inconsistent. Run chkdsk /f on Windows then reboot it TWICE! The usage of the /f parameter is very IMPORTANT! No modification was and will be made to NTFS by this software until it gets repaired.

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• The Buzz at the JavaOne Bookstore

  - by Janice J. Heiss

  I found my way to the JavaOne bookstore, a hub of activity. Who says brick and mortar bookstores are dead? I asked what was hot and got two answers: Hadoop in Practice by Alex Holmes was doing well. And Scala for the Impatient by noted Java Champion Cay Horstmann also seemed to be a fast seller. Hadoop in PracticeHadoop is a framework that organizes large clusters of computers around a problem. It is touted as especially effective for large amounts of data, and is use such companies as  Facebook, Yahoo, Apple, eBay and LinkedIn. Hadoop in Practice collects nearly 100 Hadoop examples and presents them in a problem/solution format with step by step explanations of solutions and designs. It’s very much a participatory book intended to make developers more at home with Hadoop.The author, Alex Holmes, is a senior software engineer with more than 15 years of experience developing large-scale distributed Java systems. For the last four years, he has gained expertise in Hadoop solving Big Data problems across a number of projects. He has presented at JavaOne and Jazoon and is currently a technical lead at VeriSign.At this year’s JavaOne, he is presenting a session with VeriSign colleague, Karthik Shyamsunder called “Java: A Perfect Platform for Data Science” where they will explain how the Java platform has emerged as a perfect platform for practicing data science, and also talk about such technologies as Hadoop, Hive, Pig, HBase, Cassandra, and Mahout. Scala for the ImpatientSan Jose State University computer science professor and Java Champion Cay Horstmann is the principal author of the highly regarded Core Java. Scala for the Impatient is a basic, practical introduction to Scala for experienced programmers. Horstmann has a presentation summarizing the themes of his book on at his website. On the final page he offers an enticing summary of his conclusions:* Widespread dissatisfaction with Java + XML + IDEs               --Don't make me eat Elephant again * A separate language for every problem domain is not efficient               --It takes time to master the idioms* ”JavaScript Everywhere” isn't going to scale* Trend is towards languages with more expressive power, less boilerplate* Will Scala be the “one ring to rule them”?* Maybe              --If it succeeds in industry             --If student-friendly subsets and tools are created The popularity of both books echoed comments by IBM Distinguished Engineer Jason McGee who closed his part of the Sunday JavaOne keynote by pointing out that the use of Java in complex applications is increasingly being augmented by a host of other languages with strong communities around them – JavaScript, JRuby, Scala, Python and so forth. Java developers increasingly must know the strengths and weaknesses of such languages going forward.

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• Using Network load balancing to distribute load for SharePoint2010 – Part3 of building my own development SharePoint2010 Farm

  - by ybbest

  Part1 of building my own development SharePoint2010 Farm Part2 of building my own development SharePoint2010 Farm Part3 of building my own development SharePoint2010 Farm In my last post, I have installed SharePoint2010 in one of the server (WFE One) and configured using the OOB SharePoint configuration wizard. In this post I will show you how to use OOB windows network load balancing to distribute load for SharePoint2010 site. 1. Install SharePoint in another server WFE Two (you can follow the steps in my last post), but instead of choosing create new Farm, you need to select “connect to existing farm” this time. 2. Click next then click retrieve database names button and select the farm configuration database. 3. Click next and enter the passphrase you specified when you first installed the SharePoint Farm. 4. Click the advanced settings and select Use this machine to host the web site. 5. Click OK to finish the configurations 6. Next, Install NLB in the two WFE (web front end) SharePoint servers 7. Configure NLB to create the cluster. Go to Start—Administrative Tools—Network Load Balancing Manager 8. Right-click the Network Load Balancing Clusters Node and select New Cluster. 9. Type in the host name that is to be part of the new cluster. 10. Type in the IP address for the cluster. 11. Select the Multicast for this cluster.(The default one is Unicast) 12. You can configure the Port Rules for the clustering , but I will leave the default here. 13. Add another WEF to the cluster. 14. Type in the host name that is to be part of the new cluster. 15. Set the Priority to 2. 16. Click Next to complete the cluster setup. 17. Create an entry in the DNS for the new cluster. 18. Add the binding to the IIS site in the IIS Manager 19. Change the Alternate access mapping for you default site collection from http://sp2010wefone to http://team 20. Browse to http://Team , you will be redirected to the SharePoint site.

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• Oracle Linux Partner Pavilion Spotlight - Part II

  - by Ted Davis

  As we draw closer to the first day of Oracle OpenWorld, starting in less than a week, we continue to showcase some of our premier partners exhibiting in the Oracle Linux Partner Pavilion ( Booth #1033). We have Independent Hardware Vendors, Independent Software Vendors and Systems Integrators that show the breadth of support in the Oracle Linux and Oracle VM ecosystem. In today's post we highlight three additional Oracle Linux / Oracle VM Partners from the pavilion. Micro Focus delivers mainframe solutions software and software delivery tools with its Borland products. These tools are grouped under the following solutions: Analysis and testing tools for JDeveloper Micro Focus Enterprise Analyzer is key to the success of application overhaul and modernization strategies by ensuring that they are based on a solid knowledge foundation. It reveals the reality of enterprise application portfolios and the detailed constructs of business applications. COBOL for Oracle Database, Oracle Linux, and Tuxedo Micro Focus Visual COBOL delivers the next generation of COBOL development and deployment. Itbrings the productivity of the Eclipse IDE to COBOL, and provides the ability to deploy key business critical COBOL applications to Oracle Linux both natively and under a JVM. Migration and Modernization tooling for mainframes Enterprise application knowledge, development, test and workload re-hosting tools significantly improves the efficiency of business application delivery, enabling CIOs and IT leaders to modernize application portfolios and target platforms such as Oracle Linux. When it comes to Oracle Linux database environments, supporting high transaction rates with minimal response times is no longer just a goal. It’s a strategic imperative. The “data deluge” is impacting the ability of databases and other strategic applications to access data and provide real-time analytics and reporting. As such, customer demand for accelerated application performance is increasing. Visit LSI at the Oracle Linux Pavilion, #733, to find out how LSI Nytro Application Acceleration products are designed from the ground up for database acceleration. Our intelligent solid-state storage solutions help to eliminate I/O bottlenecks, increase throughput and enable Oracle customers achieve the highest levels of DB performance. Accelerate Your Exadata Success With Teleran. Teleran’s software solutions for Oracle Exadata and Oracle Database reduce the cost, time and effort of migrating and consolidating applications on Exadata. In addition Teleran delivers visibility and control solutions for BI/data warehouse performance and user management that ensure service levels and cost efficiency.Teleran will demonstrate these solutions at the Oracle Open World Linux Pavilion: Consolidation Accelerator - Reduces the cost, time and risk ofof migrating and consolidation applications on Exadata. Application Readiness – Identifies legacy application performance enhancements needed to take advantage of Exadata performance features Workload Accelerator – Identifies and clusters workloads for faster performance on Exadata Application Visibility and Control - Improves performance, user productivity, and alignment to business objectives while reducing support and resource costs. Thanks for reading today's Partner Spotlight. Three more partners will be highlighted tomorrow. If you missed our first Partner Spotlight check it out here.

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• Active GridLink for RAC???????? NEC??????/???????! ????

  - by ???02

  ????????????????·????????????WebLogic Server 12c?????????1???Oracle Database????????????Oracle Real Application Clusters(RAC)??????????????Active GridLink for RAC?????????????WebLogic Server 12c???????????NEC??????????????????????????????????????????NEC ??IT??????????????????????????????????????(???) NEC?Active GridLink for RAC????????? NEC ??IT????????? ????? WebLogic Server?????WebLogic Server 12c?????Oracle RAC?????????????????????????????????????1??????????Active GridLink for RAC??Active GridLink for RAC??RAC?????????????????????????????????????????????????????·???????????????????????????·???????????????????????????? ???????????????????????????????????????????????????????WebLogic Server 12c?Oracle RAC??????????????????·??????????????????????????????????? ??????Active GridLink for RAC??????????????????????????????????????????????WebLogic Server????????????NEC???? NEC????????WebLogic Server???Fusion Middleware?????Oracle Database????????????????????????????????????????????????????????????????????NEC?2012?????????Partner of the Year(????)??3?????????????????????? Active GridLink for RAC?Oracle RAC??????????????????????????????????2????????????????NEC?????????NEC??WebLogic Server?????????????????????????????????????????????????????????????????????????????????????WebLogic Server?Oracle Coherence?JRockit??Fusion Middleware??????????????????????????????????????????????????????Active GridLink for RAC?????????????????????????? Active GridLink for RAC???????????????NEC????????????????SIer?????????????????????????????????????????????? Active GridLink for RAC????????????? ???????????????????????????????·?????????FCF(????????????)????? Active GridLink for RAC???????????????????1????????????????????????????????????1???????????????GridLink????????????????????????????????????????????1???????????????????????????????????????GridLink??????????????????????????? ???Active GridLink for RAC???RAC???????????????????????????????????Oracle Notification Service(ONS)???????????????????·??????????/?????DOWN/UP???????????????????????RAC??????????????????WebLogic Server????????????????ONS???????????????????????????????????????????1??????????FCF????·????????????????????????????????????????????? ??????2???RAC?2???WebLogic Server?????????????????????4???RAC?????????????????????????????????? ??????????????5????? (1)??????????·??????(RCLB) (2)Web?????·?????? (3)???RAC??????/?? (4)????????????(FCF) (5)GridLink????????????? ??????????????????????????????? (1)??????????·??????(RCLB) ??????????·??????(RCLB)???????????????????????????????????????????????????·??????????????????????????????????????????(CLB)????????????RCLB????????CLB???????????????????????? RCLB?????????Oracle RAC?????????????????(?????·??????????)????????????????????????????????????????????????????????????????·???(SERVICE_TIME)?????????1???????????????RAC????????????????????????(THROUGHPUT)???????1?????????·??????????RAC?????????????????????????? ????????????RCLB??????????????????????????(????????????????????????????????)?????????????3?????????????? ??1-a:???????????????????????? ??1-b:???????????????????????????1-c:???????????????????? ??????????????????????? ??????1-b????1-c?????????????????????????????????RCLB???????????????????????????????????????????????????????????????????????????????????????????CPU???????????????RCLB??????????????????????????? ??????????????RCLB???????????????????????????????????Oracle Database??????????CPU???????????????????????????CPU???????????????CPU?????????????????????ELAPSEDPERCALL?CALLSPERSEC???????????????????????Oracle Database??????????????????????????????????RCLB?????????????????????????????????????????? RCLB???????????????????????????FAN???????????????????Oracle RAC???????????????????????????RAC??????????????????????????????????????????????????RCLB??????????????????????????????????????????????????????????????????????????????????????????????????????????????? (2)Web?????·?????? Active GridLink for RAC?Web?????·????????Oracle RAC?????????????·?????????????????????????????????·???????????????????????????????????????? Web?????·????????HTTP?????????????????????/?????????????????????????????????????????????????????2???RAC?4???RAC?????????????·????????????????????????????????????????? ???????????RCLB??????·??????????????????·???????????????????????????????????????????????????????? ??????Web?????·?????????????????·???????????????·???????????????????????????????????????????????????????·????????????????????????????????RCLB???????????????????????????????????WebLogic Server??????????????????????·??????????1??????????????????????·?????????????????????????????? ??????NEC?????Active GridLink for RAC??????????????????????·??????(RCLB)?Web?????·??????????????????????????????RAC??????/?????????????????(FCF)???GridLink????????????????????????????

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• ????????????????

  - by Yusuke.Yamamoto

  ????·???? ?????:??????·?????? ~???????????Platinum???????????~ Pickup!:????????????????????? ???????|??????????|???????? ????????:?Oracle DB?????????????????????Windows?VMware?? ???? Oracle Technology Network, ????/????, ??IT???????·?????????????? View RSS feed ????? ????? Oracle?????????????????????????!???????????? View RSS feed ????? ???? ????????? Oracle Database ?????? ??????? ?????????(????????, ???, etc) ????????(???, REDO, ????????, etc) ????·????????????????? ????·?????????(??, etc) ????????????? ???????????????????·?????? ??????? ???? ????????·??SQL Server Windows Server ??????????PL/SQL|Java|.NET|PHP ??/??? ORACLE MASTER ???? DWH(?????????)??·?? ????? ?????(SAN, NAS, SSD, etc) ??·??????? Oracle Database Oracle Database 11g Release 2(11gR2) Oracle Database Standard Edition ????????: Advanced Compression ?????????: Advanced Security Application Express(APEX) Automatic Storage Management(ASM) SSD???Oracle???: Database Smart Flash Cache ??????????: Data Guard Data Pump Oracle Data Provider for .NET(ODP.NET) Partitioning(???????/?????????) DB????: Real Application Clusters(RAC) Real Application Testing Recovery Manager(RMAN) SQL*Loader|SQL*Plus|Statspack ??????|????????|???????? Amazon EC2|Microsoft Excel MSFC/MSCS(Microsoft Cluster Service) Exadata|Database Firewall SQL Developer ?????DB: TimesTen In-Memory Database Oracle Fusion Middleware Java Oracle Coherence Oracle Data Integrator(ODI) Oracle GoldenGate Oracle JRockit JVM Oracle WebLogic Server Oracle Enterprise Manager ????????????: Oracle Application Testing Suite Oracle Solaris DTrace|ZFS|???/???? Oracle VM Server for x86 ?????? ???????? ?????????Oracle???????????????·????????????????? ?????????(??·??????) Oracle Direct Seminar(?????????) OTN??????(??????) ???????(????????) Oracle University(??) ??????! View RSS feed ????? ?????? ????? ?????? ?????|?Sun?? ???????? OTN???????? OTN(????) ?????? ???? OTN???|???? OTN????? ?????? ?????? ???????? ???? ???????

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• ???????Java EE??????WebLogic Server 12c??????3???????Oracle WebLogic Server 12c Forum?????|WebLogic Channel|??????

  - by ???02

  ???????2012?2?7??Java EE??????????·???????Oracle WebLogic Server 12c?????????????????????1?25????????????Oracle WebLogic Server 12c Forum - ????????Java??????????? -????Java EE 6?Java SE 7???????Java???????WebLogic Server 12c?????????????????·?????????????????????3??????????????????????(???)?Java EE 6?Java SE 7??????200????????????WebLogic Server 12c　???????????Oracle Corporation?WebLogic Server???????Fusion Middleware?????????·??????????????·???????????·????????????????????·???????????/????????Oracle Fusion Middleware??????WebLogic Server??????????????????????　?Fusion Middleware?????WebLogic Server?Coherence?Tuxedo??????????·??????????????????????????????????????????????Traffic Director?Virtual Assembly Builder???????Cloud Application Foundation??????????Cloud Application Foundation??Fusion Middleware?Fusion Application??????·???????????·????????????????????(?????)　?????????????1???????????WebLogic Server 12c??Java EE 6?Java SE 7???????Java?????????????????????????????????????200??????????????????　???????????????????????Java EE 6??????????????????????????????????????????????????????????????????????????5??????　????????·??????????????????Java EE 6?Java SE 7?????????????????????????????????????Oracle Real Application Clusters(RAC)?????????????????????????????????????????????????????????????　????????????????SPECjEnterprise2010????????????????????????????????????????????·????(Engineered Systems)?????????Oracle Exalogic Elastic Cloud????????????????????????　???????????????????????????????Oracle Enterprise Manager Cloud Control 12c???????????????????????·??????????????????????????????????????????????????????????　????WebLogic Server????????GlassFish?????????????????JBoss?WebSphere?????????/???????????·?????WebLogic Server 12c????????????????????????????·????????????　???????IDC?????????????WebLogic Server????????????????????????????????????????????????????????·???????????????????WebLogic Server 12c??????????????????·??????????????????????WebLogic Server 12c???????????????????????????(?????)¦????????????! ??????????????????WebLogic Server 12c??????WebLogic Server 12c??????3?????　???????????????????????Fusion Middleware???????????????????????????????WebLogic Server 12c??????3???????????????????????WebLogic Server 12c???????????????WebLogic Server 12c???????1――???Java?????????????　????WebLogic Server 12c???????????Java EE 6?Java SE 7????????????????????????????????Java EE??????????????????????????????????????Java EE????????????????????????????Java EE?????????????1??????????????????????????????????????????????????(???????·?????????????????)?????????????????????????????????????????　?Java EE 6????Java EE?????????1???????????Java?????????????????????????????????????????????????????????·??????(OSS)???????????????????????????????????????Java EE 6?Java SE 7??????Java???????????????????????????????????????????????????(???) ???????????????????????Fusion Middleware???????????????????????????????WebLogic Server 12c??????3???????????????????????WebLogic Server 12c???????????????WebLogic Server 12c???????1?????Java????????????? ????WebLogic Server 12c???????????Java EE 6?Java SE 7????????????????????????????????Java EE??????????????????????????????????????Java EE????????????????????????????Java EE?????????????1??????????????????????????????????????????????????(???????·?????????????????)????????????????????????????????????????? ?Java EE 6????Java EE?????????1???????????Java?????????????????????????????????????????????????????????·??????(OSS)???????????????????????????????????????Java EE 6?Java SE 7??????Java???????????????????????????????????????????????????(???)--WebLogic Server 12c???????2:??????????????????(??????????????????)　???WebLogic Server 12c?????2????????????????????????????????????1????????????????OSS??????????????????????????OSS????????????????????????????????????????????????????????????????????????????????????????????OSS?????????????????????????????????????????????????????????????? "???"????????????????　???WebLogic Server 12c?????Java EE 6???JavaServer Faces 2.1?Java Servlet 3.0?EJB 3.1?Java Persistence API 2.0????????????Java EE??????????????????????????????????????????????OSS?????????????????????????????????????????????????????????????????????????Java EE??????????????????????????????·???·?????????????/??????????????????????????????????????????????????????????????????¦?????WebLogic & Java EE???????????　?????????????Java EE?????????????WebLogic Server 12c???????3:?????·???????????????　3?????????????·?????????????????????????????????Oracle RAC????????????Active GridLink for RAC???????WebLogic Server????????1?????????　Active GridLink for RAC ??WebLogic Server???????????WebLogic Suite???????1????WebLogic Server 12c???Web?????·???????????????????????????????HTTP?????????????Oracle RAC?1?????????????????????????·?????????????????????????????????????Oracle RAC??????????????????????Web?????·????????????????????3??1??????????????　???Active GridLink for RAC??????????????????????????????????????????????TCP/IP??????????????????????????·??????????????????????????????????????????????????Oracle RAC????????????????????????????????????????????????????????????·????????????????????????????????????????????????¦????WebLogic?RAC????????????――Active GridLink for RAC????RAC???????????????????????????????????????4????　????????·??????(GC)?????????????????????????????JRockit Real Time?????????????????????????????????????????????????JRockit Flight Recorder????2??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????·??????·????????????????????WebLogic Server?????????????12c??????????????　?Oracle Database????????GC????????????????????????????????????????????·????????????????????WebLogic Server????????????????12c?????????????????????????????????????????????????????????????????????????·?????????????????????????????????????????????????WebLogic Server 12c???????????(???)¦??????????????????????????WebLogic Server????????·??????????――?????·??????·???????????WebLogic??????????????????????????TCO?――????????????????WebLogic???????　???????????????????Cloud Application Foundation???????????WebLogic Server 12c???????????????????????????????????????????????????????????????????????????????????????·??????·????????????????????????????????????????????????????????WebLogic Server 12c??????????????????????????¦WebLogic Server 12c??????·???Oracle Fusion Middleware 11g ??????·??????Oracle OpenWorld Tokyo 2012??????ENGINEERED FOR INNOVATION ??????????????????????????????????????????????????????????????????????????????????WebLogic Server???????????????????????![???????????:4324]??:2012?4?4?(?)~6?(?)??:???? ????? ??????????????49????????????:????Oracle OpenWorld Tokyo 2012???? ~??????~(PDF)Oracle OpenWorld Tokyo 2012????????2?(?????)???

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• ?????????????????????????|WebLogic Channel|??????

  - by ???02

  Java EE????????·????????????????/??????????????????????·?????????????????????????WebLogic Server?????????????WebLogic Server???????????????????·??????????????????????????????????????????????????????????(???)???????WebLogic Server???????　????WebLogic Server 11g(10.3.5)??????????????????????????????????????????????????(1)WebLogic Server???????(2)????????????????(3)?????????????(4)JDBC????????????(5)?????????????　???????Windows?WebLogic Server??????10.3.5????????Oracle Database Express Edition????????????????????????????????????EXE???ZIP???2????????????????EXE???????　???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????MIDDLEWARE_HOME(?????????????)(????????????????)C:\Oracle\MiddlewareWebLogic Server??????????????Oracle CoherenceOracle Enterprise Pack for Eclipse?????????·????????????????????????????????????????????????(Windows?????)??????????Windows????????(??????????????)?????Web????Oracle HTTP Server?????????????(????????????????????)Oracle ADF(Application Development Framework)??????????WebLogic Server????????????????(Oracle ADF??????????????????????????????)Fusion Middleware Control???????????(Oracle HTTP Server?????????????????????????????)???????????TokyoDomain???????ID/?????weblogic/welcome1??????????AdminServer:7001????????????Server1:7011Server2:7012???????????????Host1??????????????????????????Host1?Server1???Host2?Server2???????JVMJRockit????????????????????????(???????)C:\Oracle\Middleware\user_projects\domains???????????????????????????????????????　???WebLogic Server??????????GUI????CUI?????????????????????????????????????????????????·????3??????????????????????????????????GUI???????????????????????¦??????????Oracle WebLogic Server ???????·????????????WebLogic Server?????????????????????!(1)WebLogic Server???????　???????????????????????????????????????????????????????????????????????????????????·???·????????????????????????????????????????　????????????????????????????My Oracle Support???????????????????My Oracle Support?????????????????????·??????????????????????????????????????　?????????????·?????????WebLogic Server?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????　????????????JDK????????????????????????JDK??????????????????????????????????JDK??????????????????????????????????????·???????????????????????????????????????????????????????????　???????????Windows????????????????WebLogic Server?Windows?????????????Windows?????????????????????????????????????????????????????Windows?????????????????????????????????????????????????????????????????????　??????????????????????All Users???????·??????????????????????????????????????????????????????????????????　????????????????????????????????????????????????????(2)????????????????　???????????????????????????????????????????1??????JDBC??????????Oracle Database????????????Web????????HTTP??????????????????????????　??????????????????????????????????????????????????????????????????????????domain1??????????????JDKJRockit SDK 1.6????????1????????Server1?????????????7002???ID??????ID:weblogic?????:welcome1　????????????????????????????????????????2????????????????????????????????????????????????????????????(???????????????)?????????????????????????????????????????????????????????????????????????????Web????·????·???????·????????????????????/??????????????????????(???????·???)?????????????????????????????????????????????????????????????????????????????????????????????????????????????????Web????·???·???????·???????????????????????????????????　???????????????????WebLogic Server??????????????????　WebLogic Server???????????????Configuration Wizard?????????????????Windows???????????????????????-?Oracle WebLogic?-?WebLogic Server 11gR1?-?Tools?-?Configuration Wizard?????????(UNIX???????WLS_HOME/common/bin/config.sh??????)?????????????????WebLogic????????????????????????????　????????????????·???????????WebLogic Server???????????????Oracle SOA Suite?Oracle Business Process Management???Fusion Middleware??????????????????????????????????????????????????????????????????????????????????Basic WebLogic Server Domain?????????Basic WebLogic Server Domain??????????????????????????????????????????????????????????　????????????????JDK???????????????????????????(????????)???????????JDK???????????????????????JRockit????????????????????????JDK????????????????JDK????????????JDK?????????????????????　???????????????????????????????????????????????????????RDBMS???????·?????????????????????????????????????????????　?????????????????????????????????????????????????????????????????????????????????????????????????　??????????????????????????????????DOMAIN\startWebLogic.cmd?(UNIX??????startWebLogic.sh?))???????????????????????ID????????????????????????????????????????<??> ?????????????????????????????(3)?????????????　??????????????????????????????????????????????????7001?????????Web??????http://localhost:7001/?????????????????????????????????????????????ID????????????????????????　??????????????????????? ??????????????????????????????????????????????(domain1)??????????????????????????????????-??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????　??????????????????????????????DOMAIN\bin????????????????????????(??????Server1??????????????7001????)?startManagedWebLogic.cmd Server1 http://localhost:7001　????????????ID????????????????????????????<??> ??????????????????????????????????????????????????????DOMAIN_HOME\bin\stopManagedWebLogic.cmd?????????????????????????stopManagedWebLogic Server1¦??????????????Oracle???????????????????????·????!(4)JDBC????????????　????JDBC??????????????Java EE????????·????????JDBC?????????????????????????????????????????????????????????????????????????????????JNDI(Java Naming and Directory Interface)??????????/??????????????????????????????·???????????????????????????　?????????????????????????????????????????????JDBC???????????????JDBC??????????????????????????????????????????????????????????????????????????????????WebLogic Server????????JDBC???????????????????????????????????????????????????????????????????????????????　???WebLogic Server???????????????????????????????????????????1?????????????????????????????????????????????????????????????·?????????????????????????????????????????????????????????????????????????Oracle Database????????·?????????Oracle Real Application Clusters(RAC)?????????????????????　???WebLogic Server 11g????????JDBC?????????????MySQL??Oracle Database????????????????????????????????????Oracle Thin Driver 11gojdbc6.jarTYPE4MySQL5.0 JDBC????mysql-connector-java-commercial-5.0.x-bin.jar WebLogic Type4 JDBC????DB2?:wldb2.jarMS SQL Server?:wlsqlserver.jarInformix?:wlinformix.jarSybase?:wlsybase.jarDataDirect?OEM??　??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????(*?????)??Oracle Database????????????*WebLogic Server?????dsAJNDI?*JNDI??????????jdbc/dsA????????*Oracle?DB2???1Oracle???????*????????????????1Oracle Thin Instance-Connection????????·??????XA??????????1phase commit???????*???????IDORCL????*???????????Localhost???*?????????????1521??????·?????????????????SCOTT???????????·??????????TIGER????·????*JDBC??????????2oracle.jdbc.OracleDriverURL*JDBC URL?2jdbc:oracle:thin:@localhost:1521:ORCLJDBC????·?????JDBC???? ????????(or SQL)??????????????SQLSQL SELECT 1 FROM DUAL?????WLS?????????????????Server1?1　????????????BOX?????2　?????????????????　?????????·?????????????????????????????????????????1??????????????????????????????????????1?????1?????????????????15?????????????????????????1????????????????????????????????????????????(???????????????????)false?????(?)????????????????????????????????????????????????????(???????????????????)120?????????????????????????????????????????????????10????(?)?????????????????????900??????????????(?)?????????????????????????????????????????????????????0(??)???????????(?)????????????????????????????????10??????????(?)?????????????????????????????0???????JDBC????????????SQL????????????????JDBC?????Statement.setQueryTimeout????????????-1?1　???????????????????????????????????????????????????????????????　???????????·???(?????)???????????????????????????????????????????????????WebLogic Server?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????　JDBC?????????????????????????????????????????? ?????????????????????????????????????????-?JDBC?-?????????????????????????????JDBC???????????????-??????·?????????????　???JDBC????????????JNDI??????????????????·??????????????????Oracle Database Express Edition???????????????????????????????Oracle?????????·????????XA???????　???????????????????????????????·?????????????????????????1????·?????????????????????????????????????????????????????????????????????·????????????????????????????????????????????????????????????????????????????JDBC?????????????????????????????????????????? ???????????????????????????????????　????????????????????????????????????????-?JDBC?-????????????????????????????????????????????????????????????????????¦????????????Oracle WebLogic Server - JDBC??????(5)?????????????　???????????????????????????????????????????????????Java EE 5????????????????????Java EE??????????????????Eclipse?Oracle JDeveloper 11g?Oracle Enterprise Pack for Eclipse 11g????????????????·?????????????????????WebLogic Server?????????????????????????WebLogic Server??????????????????????Web?????????WAR?????EJB?????????JAR????????WAR?JAR????????EAR??????????????　?????????????????????????????????????????? ??????????????????????????????????????????????????????????????????????????????????????????????????　?????????????·??????·????????????????????????????????????????????????????????????????　????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????(????????)????????????????????????????????????　???????????? ??????????????????????????????????????　?????????????????????????????????????????????????????-????????????????????????????????????????????????????????　????????????????????????????????????????????????????????????????????????????????????????????????　???????WebLogic Server????????????????????????????????????????????????????????????WebLogic Server????????????????????????????????????????????·???????????????/????????????????????????????WebLogic Server????????????????????????????????????????????????????????????WebLogic Server?????????????????¦????????WebLogic Server???···????????????????????!

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• ????Java EE????WebLogic Server???????????|WebLogic Channel|??????

  - by ???02

  20????????????????????????/???????????Java EE???WebLogic Server????????????????IT(????)?????????????????????????????????????/??????????????????????????????????????????/?????????????????????????2011?9?6???????????????????WebLogic & Java EE????????????????????????????Java EE?WebLogic Server????????????(???)?WebLogic Suite?????/??????????????????　???Java????????????·?????????????????WebLogic & Java EE?????????????????????????? Fusion Middleware?????????????????Oracle WebLogic Server???????????????????????????WebLogic Server????????????????·??????????????????????　???WebLogic Server??????????????Standard Edition?????????????Enterprise Edition??????????·??????·????????WebLogic Suite??3??????????????????????????WebLogic Suite??????????????WebLogic Server???????????/??????JRockit Flight Recorder????Mission Control???????·???·??????Oracle Coherence????????????????Java??????JRockit Real Time????????????????Oracle Enterprise Manager??????????????????????????????????????????????????????????·??????·??????????????????·????????　????????????????????WebLogic Server?????????????????????????????·????????????????·??????2????????2??????????????IT???????????????????????????????????????·????????????????IT??????????????????????????????????·???????????????????IT??????????????????????????????????Java????????·?????????????????????????????????????????????????????????　??????????????????????????????????????????????"???"??????????????WebLogic Suite???????????????????????????????????????????????????????????????(???)　???????WebLogic Server?????????????????WebLogic Suite 11g?????????????????????????????????Oracle Database??????????????????4??????　???????????????????Java EE 5????????????Java EE 6???????????????Eclipse????????????????FastSwap????????????????????????????????????????????????????????　?????????????????????????JRockit Flight Recorder????????????·????????????????????????????????????????·???????????????????????????????????　Oracle Database?????????????Oracle Real Application Clusters(RAC)??????????Active GridLink for RAC?????????????????RAC???????????????????????·????????????????????????????·?????????????????????????????????RAC?????????WebLogic Server?????????????????????????????????????????????????????????????????????????????????????????　?????????????????·???????2011????????????????WebLogic Server 10.3.6???2012?????????????????WebLogic Server 12.1.1????????WebLogic Server 10.3.6???????·???????Oracle Exalogic Elastic Cloud???WebLogic Server 12.1.1?Java?????????????????????????　WebLogic Server 10.3.6????????????Oracle Virtual Assembly Builder???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????WebLogic Server 10.3.6?????????????????InfiniBand????????Socket Direct Protocol???????????　??????????·???????WebLogic Server 12.1.1???Java EE 6??????????????????Web?????????????????????Java EE 6?????????WebLogic Server?????????????????????　??????????????????????????????WebLogic Suite????????????????????????????????·??????·????????WebLogic Server????????????Java EE????6????????!　????????Java EE 6????-??????????????????????? Fusion Middleware?????? ???Java???????????????????Java???????????????????　????????????????????????――?Java EE??????????????????????2000???????EJB??????Java EE?????????????????Web???????????????????Struts???Spring Framework??????????????????????????????????Java EE?"?"???????????????????????????????????????????????????????????????????????????????????XML??????????????????????????Java EE??????????(=??)???????　??????????????????????????????????J2EE 1.4??????Java EE 5???????"??????"???????????????????????????Java EE 6??????????????"??????"???????????????????????????2009?12???????????????????????????(???)　?????????????????????????Java EE 6????????????????????????????????????????????????4??????　?????????????Java EE???????????????????????????????????????????web.xml?????????????????Java EE 6??????????????????web.xml???????????????????????????????????????????????????????????????????????????????　????Java EE????????????????????????????Java EE 6??????Web??????????????????Web????????????Java EE??????????????????????????????????????/????????Web????????????????????????　????????????????????Java EE???????·??????????JavaServer Faces(JSF) 2.0????????????????????????????????????　JSF 2.0??????????????????·????????XHTML???????????????????????·???????(UI)??????????????JSF 1.2???Java Server Pages(JSP)????????????????????????????????????????JSF 2.0???Facelet??????XHTML??????????????????????????????????　?????EJB??????????????????????????EJB 3.1?????????EJB???????????????????????????????????????·????????????????Java SE???EJB??????????????????????????　??????????????????????????????????????????·???????????Java EE 5????????Java EE 6?????????Web??????????????????????·??????????Tomcat??????????????·??????????????(???)???????????????????Web?????????????Tomcat??????????????????????　???????????????Tomcat???????Java Servlet?JSP?Expression Language?????????????????Struts???????????????Web????????????????????????????????????????Web??????????????????????????????????????????????????????????????Java EE 6?????????????????????????????　?Java EE 6?Web???????????Java EE?????????????????Web????????????????????Java EE 6???????WebLogic Server????????????????????????????????????????Web??????????????????????(???)　?????????????????????????????????????????????????????????Java EE 6?????????????????????Java EE 6???"??????"?????????????JRockit Flight Recorder/Mission Control?????????!　??????????????? Fusion Middleware?????????????????Oracle WebLogic Server 11g?????????-???????WebLogic??????!??????????????WebLogic Server?????????????????????????????????????????????????????????????????????????JRockit Flight Recorder?JRockit Mission Control????????????·???????????????　????????JRockit Flight Recorder(JFR)??Java???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????　??JFR????????????????????SLA????????????????????????????????　????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????JRockit?????????????JRockit Mission Control(JMC)?????JFR??????????JFR????????·????????????????????　JFR?????????????????????????????????????????????????????????????????????????·????????????????????????????????????????·?????????????????????????????????????????????????????4???????????????????????JFR????????????????????????????????????????　???JMC?Eclipse??????????????????????????????????????????·?????????????????????????????????????Eclipse??????JMC????????????????·???????????????????·??????????????????????????????????????　??????JMC?Eclipse?????????????????????????????????????????UI????????????????????????????????????????????????????????????????????????????????????????????????: ?????????! ?????????????????JRockit Flight Recorder?????*　　　*　　　*　???????WebLogic & Java EE??????????????????Java?WebLogic Server????3??????????????????????????????????·?????????????????????????

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• How do you install/configure JBoss on Linux/Unix?

  - by mafro

  I'm currently working on how install and configure multiple (30+) JBoss EAP 5 configurations (both standalone and clusters) for development, test and production at a client's site (running SuSE). I'm not to fancy about the jboss way of storing application/configuration together with system files, so I have tried to split things up (ie moving server config out of the jboss installation directory). I also would like minimize the amount of configuration needed when upgrading/patching jboss - but I'm not done thinking about that... It would be great to hear how you've done and what you think about my approach. This is how my installations look like (for the moment): Standard JBoss EAP install (minus server configs): /opt/jboss/jboss-eap-5.0/jboss-as /opt/jboss/jboss-eap-5.0/jboss-as/bin/ /opt/jboss/jboss-eap-5.0/jboss-as/lib/ /opt/jboss/jboss-eap-5.0/jboss-as/server/ [server configs removed to avoid starting them by mistake] /opt/jboss/jboss-eap-5.0/jboss-as/.../ Application (some jboss folders has been omitted - you'll get the point anyway): /app/<project>/ [$app.dir - application specific base folder] /app/<project>/jboss/ [$jboss.home] /app/<project>/jboss/bin/ -> /opt/jboss/jboss-eap-5.0/jboss-as/bin /app/<project>/jboss/lib/ -> /opt/jboss/jboss-eap-5.0/jboss-as/lib /app/<project>/jboss/server/<cfg>/ [project specific config based on 'production'] /app/<project>/jboss/server/<cfg>/log/ -> /log/<project>/<cfg> /app/<project>/jboss/server/<cfg>/... /app/<project>/jboss/.../ -> /opt/jboss/jboss-eap-5.0/jboss-as/.../ /app/<project>/bin/ [application specific scripts for start/stop etc - wraps jboss supplied scripts] /app/<project>/deploy/ [application deploy folder] /app/<project>/etc/ [application specific config] Questions: How do you install JBoss (on linux/unix systems)? Where do you put JBoss and what modifications do you do? Where do you put your applications and application specific files? Do you share JBoss instances between applications or run one instance/cluster per application? How do you manage configuration changes (i.e. your modifications of jboss standard config)?

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• Finding cause of TCP retransmission within a LAN

  - by Surreal

  Hello denizens of Server Fault I have an irritating problem with a LAN of about 100 computers, 2 Windows domain servers, and 12 VoIP phones. Since their installation around a year ago, every week or so, we notice a VoIP phone resetting itself - occasionally in the middle of a call. Simultaneously there are often signs of temporary loss of connection on computers: freezes in explorer while accessing network shares, errors in our administration software due to loss of connection to the database server. I have been doing some Wireshark monitoring on the connection between the VoIP PBX and the rest of the network. Wireshark picks up a clump of retransmitted TCP packets at the times when we record phone restarts. The Wireshark log shows about 2 clusters of retransmissions a day ranging from 5 packets to hundreds. Those in each cluster are mainly between the PBX and some set of the VoIP phones, but not always the same set. Often retransmissions at the same time are to phones connected to the same switch, but sometimes retransmissions occur together to phones at opposite ends of the network. There are usually some coincident retransmissions in passing TCP traffic, for example between client machines and the file servers. The spikes in retransmissions and phone resets do not correlate well with when the network is heavily loaded. They seem to occur slightly more during the day, but most in the evening, when traffic should be decreasing. They occur reasonably often late at night when most computers are turned off and traffic should be lowest. Do you have any ideas that might help diagnose the cause of problems like this? One thing I have not yet tried, but should have, is updating the firmware of all the switches.

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• I need advice about iscsi + zfs(or ntfs) + windows 2008 clustering

  - by Fatih

  I want to setup a storage farm with iSCSI. I have 2 cluster node machine, 1 iscsi target machine that has 8TB installed as RAID 10. The capacity is now 8TB, but I'll upgrade the capacity in future. Let's say, I installed clusters as file server, and I connected these servers to iscsi target, then I shared 8TB capacity as an only folder to the windows users. Users now see only a folder whose capacity is 8TB. But if I want to add another 8TB to expand the main capacity, the users must not see the second folder for this new 8 TB. The users must see only a folder as before, but this time this folder's capacity expanded to 16TB. And so on, if I add another 8TB, the users must deal with only a folder. For this purpose, I've learnt that ZFS can expand its size without a problem. So if I use ZFS as a file system on iSCSI luns, how can the cluster machines see the ZFS. Because the cluster machines have windows 2008. Is there another way to expand the size of shared folder without a problem? Does ntfs support it?

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• SQL Server 2008 cluster freezing

  - by Ed Leighton-Dick

  We have run into a strange situation in which a SQL Server 2008 single-node cluster hangs. As background, we are rebuilding a Windows Server 2003/SQL Server 2005 two-node cluster using Windows 2008 and SQL Server 2008. Here's the timeline: Evicted the passive node (server B) from the Windows 2003/SQL 2005 cluster. The active node now functions as a single-node cluster with no problems. Wiped server B's disks and installed Windows 2008 and SQL Server 2008 as a single-node cluster. Since we do not want to the two clusters to communicate yet, we left the cluster's private network "heartbeat" adapter unconfigured. The cluster comes up and functions normally. Moved all databases to the new cluster. Cluster continues to function normally. Turned off server A (old cluster) in preparation for rebuilding as the second node of the new cluster. SQL Server instance on server B (new cluster) locks up, even though it should have no knowledge of or interaction with server A. Restarted server A. SQL Server instance on server B (new cluster) immediately begins working again. Things we have tried: The new cluster's name responds to ping and NETBIOS requests, even while the SQL Server is hung. We have confirmed that no IP address is assigned to the old heartbeat adapter, and it is not pulling an IP address from DHCP. Disabling the heartbeat's network card has the same effect. No errors were generated in any logs - Windows or SQL. When the error first occurred, it sat in the hung state for quite some time (well over 10 minutes) before anyone figured out what was going on. This would seem to eliminate any sort of normal cluster timeout in which it would have been searching for the other node (even if one had been configured). Server B is running Windows 2008 SP2, fully patched, and SQL Server 2008 SP1 CU7 (10.0.2775).

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• (solved) `ssh foo "<command/>"` not loading remote aliases?

  - by TomRoche

  summary: Why does this fail $ ssh foo 'R --version | head -n 1' bash: R: command not found but this succeeds $ ssh foo 'grep -nHe 'bashrc' ~/.bash_profile' /home/me/.bash_profile:3:# source the users .bashrc if it exists /home/me/.bash_profile:4:if [ -f "${HOME}/.bashrc" ] ; then /home/me/.bash_profile:5: source "${HOME}/.bashrc" $ ssh foo 'grep -nHe "\WR\W" ~/.bashrc' /home/me/.bashrc:118:alias R='/share/linux86_64/bin/R' $ ssh foo '/share/linux86_64/bin/R --version | head -n 1' R version 2.14.1 (2011-12-22) ? details: I am a (rootless) user on 2 clusters. One uses environment modules, so any given server on that cluster can provide (via module add) pretty much the same resources. The other cluster, on which I must also unfortunately work, has servers managed individually, so I get in the habit of doing, e.g., EXEC_NAME='whatever' for S in 'foo' 'bar' 'baz' ; do ssh ${SERVER} "${EXEC_NAME} --version" done This works fine for packages installed normally/consistently, but often (for reasons unknown to me) packages are not: e.g. (compare alias below to alias above), $ ssh bar 'R --version | head -n 1' bash: R: command not found $ ssh bar 'grep -nHe 'bashrc' ~/.bash_profile' /home/me/.bash_profile:3:# source the users .bashrc if it exists /home/me/.bash_profile:4:if [ -f "${HOME}/.bashrc" ] ; then /home/me/.bash_profile:5: source "${HOME}/.bashrc" $ ssh bar 'grep -nHe "\WR\W" ~/.bashrc' /home/me/.bashrc:118:alias R='/share/linux/bin/R' $ ssh bar '/share/linux86_64/bin/R --version | head -n 1' R version 2.14.1 (2011-12-22) Using aliases copes well with these install differences when I interactively shell into the server, but fails when I try to script ssh commands (as above); i.e., # interactively $ ssh foo ... foo> R --version calls my alias for R on remote host=foo, but # scripting $ ssh foo 'R --version' doesn't. What do I need to do to make ssh foo "<command/>" load my aliases on the remote host?

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• Are Colocation Cross Connects Worth While

  - by SvrGuy

  We currently operate three clusters of collocated machines in different data centers. Recently, I became aware that our newest data center will offer to cross connect us to a bandwidth provider free of charge. In the past, I never really investigated a cross connect for bandwidth because I figured that the rates would be similar to what we are paying the colo now and that it would reduce our resiliency (because we would only be using one or two carriers for IP, where as the colo uses, say 8 different providers). Then I saw an ad for hurricane electric internet services (http://he.net/cgi-bin/ip_transit_quote) that gave a price for IP transit at $1/Mbs, which is much better than the $30/Mb we pay for the blended bandwidth. What are people out there typically paying for bandwith via cross connect and how hard is to setup? Is my understanding that what you do is open agreemetns with two or three ISPs, cross connect to them and then configure your top of rack router on their network. Can you really get IP transit down to a couple of dollars per megabit per month just by doing the routing yourself? Or, is my understanding of cross connection fundamentally wrong?

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• Best CPUs for speeding up compiling times of C++ w/ DistGCC

  - by Jay

  I'm putting together a distributed build farm with DistGCC to speed up our teams compile times and just looking for thoughts on which processors to use in the hosts. Are we going to get a noticeable decrease in time using 8 cores vs. 4-hyperthreaded cores? Big difference in time between i7 and Xeon? etc, etc. Just need advice from people who've put together kick-a build clusters. We've got a majority of the normal things to speed up builds in place (pre-compiled headers, ccache, local gigabit connections between them, tons of ram, etc) so please just give advice on the best processor to use. And money is a factor, but anythings doable if the performance increase is noticeable. Thanks. Jay EDIT: Although any advice IS welcome, please refrain from "Do this first" posts as we're not planning on skimping on things like SSD, maxed out RAM, etc. My personal system is a iMac Quad-core i5 with 8GB of RAM. When I build our project locally, my processor floats around 99-100% a majority of the time, which makes me assume it is a bottleneck, even if you made everything else faster. My ram on the other hand doesn't even get close to maxing out. It's also worth noting that I did research this, however every discussion I could find was primarily for gaming machines, which is obviously a different beast in usage. These machines won't even have monitors or anything but integrated graphics since they have one purpose: Build freakin fast. (hopefully)

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