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• iWork '09 Keynote: is there is straightforward way to 'dim' and 'highlight' each item in a bullet li

  - by doug

  I have a bullet list on a slide: first item second item third item What I want to do is show those three bulleted items in a sequence like this: first bullet appears first bullet dims second bullet appears second bullet dims third bullet appears third bullet dims In other words, only one bullet is shown at a time (the one i am current discussing) to reduce audience distraction by what comes next or what i just finished discussing (the prior bullet). This is such a common thing to do, there's got to be a simple, reliable way to do it. The only way I know of is to configure the items individually (using "Build In" and "Action" on each bullet item, which is not only slow but doesn't work well). Another way i've found--which, again is very slow--is to create my bullet list not by selecting a bullet list, but to build the list manually with text boxes (one bullet item per text box) then line them up as a list. This way it's easier to manipulate them independently--again though, takes way too long to do one slide this way.

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• IBM Keynote: (hardware,software)–>{IBM.java.patterns}

  - by Janice J. Heiss

  On Sunday evening, September 30, 2012, Jason McGee, IBM Distinguished Engineer and Chief Architect Cloud Computing, along with John Duimovich IBM Distinguished Engineer and Java CTO, gave an information- and idea-rich keynote that left Java developers with much to ponder.Their focus was on the challenges to make Java more efficient and productive given the hardware and software environments of 2012. “One idea that is very interesting is the idea of multi-tenancy,” said McGee, “and how we can move up the spectrum. In traditional systems, we ran applications on dedicated middleware, operating systems and hardware. A lot of customers still run that way. Now people introduce hardware virtualization and share the hardware. That is good but there is a lot more we can do. We can share middleware and the application itself.” McGee challenged developers to better enable the Java language to function in these higher density models. He spoke about the need to describe patterns that help us grasp the full environment that an application needs, whether it’s a web or full enterprise application. Developers need to understand the resources that an application interacts with in a way that is simple and straightforward. The task is to then automate that deployment so that the complexity of infrastructure can be by-passed and developers can live in a simpler world where the cloud can automatically configure the needed environment. McGee argued that the key, something IBM has been working on, is to use a simpler pattern that allows a cloud-based architecture to embrace the entire infrastructure required for an application and make it highly available, scalable and able to recover from failure. The cloud-based architecture would automate the complexity of setting up and managing the infrastructure. IBM has been trying to realize this vision for customers so they can describe their Java application environment simply and allow the cloud to automate the deployment and management of applications. “The point,” explained McGee, “is to package the executable used to describe applications, to drop it into a shared system and let that system provide some intelligence about how to deploy and manage those applications.”John Duimovich on Improvements in JavaMcGee then brought onstage IBM’s Distinguished Engineer and CTO for Java, John Duimovich, who showed the audience ways to deploy Java applications more efficiently.Duimovich explained that, “When you run lots of copies of Java in the cloud or any hypervisor virtualized system, there are a lot of duplications of code and jar files. IBM has a facility called ‘shared classes’ where we put shared code, read only artefacts in a cache that is sharable across hypervisors.” By putting JIT code in ahead of time, he explained that the application server will use 20% less memory and operate 30% faster.  He described another example of how the JVM allows for the maximum amount of sharing that manages the tenants and file sockets and memory use through throttling and control. Duimovich touched on the “thin is in” model and IBM’s Liberty Profile and lightweight runtime for the cloud, which allows for greater efficiency in interacting with the cloud.Duimovich discussed the confusion Java developers experience when, for example, the hypervisor tells them that that they have 8 and then 4 and then 16 cores. “Because hypervisors are virtualized, they can change based on resource needs across the hypervisor layer. You may have 10 instances of an operation system and you may need to reallocate memory, " explained Duimovich.  He showed how to resize LPARs, reallocate CPUs and migrate applications as needed. He explained how application servers can resize thread pools and better use resources based on information from the hypervisors.Java Challenges in Hardware and SoftwareMcGee ended the keynote with a summary of upcoming hardware and software challenges for the Java platform. He noted that one reason developers love Java is it allows them to ignore differences in hardware. He stated that the most important things happening in hardware were in network and storage – in developments such as the speed of SSD, the exploitation of high-speed, low-latency networking, and recent developments such as storage-class memory, and non-volatile main memory. “So we are challenged to maintain the benefits of Java and the abstraction it provides from hardware while still exploiting the new innovations in hardware,” said McGee.McGee discussed transactional messaging applications where developers send messages transactionally persist a message to storage, something traditionally done by backing messages on spinning disks, something mostly outdated. “Now,” he pointed out, “we would use SSD and store it in Flash and get 70,000 messages a second. If we stored it using a PCI express-based flash memory device, it is still Flash but put on a PCI express bus on a card closer to the CPU. This way I get 300,000 messages a second and 25% improvement in latency.” McGee’s central point was that hardware has a huge impact on the performance and scalability of applications. New technologies are enabling developers to build classes of Java applications previously unheard of. “We need to be able to balance these things in Java – we need to maintain the abstraction but also be able to exploit the evolution of hardware technology,” said McGee. According to McGee, IBM's current focus is on systems wherein hardware and software are shipped together in what are called Expert Integrated Systems – systems that are pre-optimized, and pre-integrated together. McGee closed IBM’s engaging and thought-provoking 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 now must understand the strengths and weaknesses of such newcomers as applications increasingly involve a complex interconnection of languages.

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• What to use for simple cross-platform games instead of Flash?

  - by jmh_gr

  In short, for simple games: Is Flash still a good option for browser-based PC clients? It still has 90%+ penetration. What is a good alternative for mobile devices? It HTML5 + JavaScript the choice for mobile? Or does one have to learn a new native language for each target platform? (Android, Apple, Windows Phone)... If you desire further background: There are more blogs about the official demise of mobile Flash than I can count, along with endless useless and vitriolic comments. I'm actually trying to do something practical: build simple games that can be served accross multiple platforms. Several months ago I plopped down $1100 for CS5.5 Web and am wading into Flash. Bummer. My question to people who actually develop simple games and apps: What platform should I use instead? Is Flash still a sensible platform for web-served PC users? For example, let's say I build a simple arcade game that I would like to serve as an app to mobile users and as a browser-based game to PC users. Should I still invest the time and effort to learn and develop in Flash for the PC users, while building a parallel code set in some other language for mobile users? My games are simple enough that it would be annoying but not inconceivable to maintain parallel code sets.

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• AutoVue for Mobile Asset Management

  - by Warren Baird

  Our partner VentureForth is working with us on a solution to use AutoVue in their mobile asset management system. The idea is to allow workers in the field to easily be able to access visual information they might need while doing their work - and to annotate them.   For instance the worker can take a photo of something unexpected they found on-site, and indicate on the drawing what they found, so there's a record of it for the future.VentureForth's vMobile suite allows workers to take information for EBS eAM and PeopleSoft CAM, as well as multiple other systems) offline with them while working in the field, and with the AutoVue integration the workers can then view and annotate CAD drawings or photographs and have that information saved back into the asset management system.VentureForth has posted a video of this in action on YouTube:  http://youtu.be/X5Lv_X2v7uc - Check it out and let us know what your thoughts are!Learn more about VentureForth at http://ventureforth.com/

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• Not Working Nvidia GT 635M drivers

  - by Andres

  I'm having problems trying to use my Nvidia 635M in my asus N46VJ laptop. I open the "Nvidia X server settings" I get this message : "You do not appear to be using the NVIDIA X driver. Please edit your X configuration file (just run nvidia-xconfig as root), and restart the X server." I open the terminal typi "sudo nvidia-xconf" and this creates a file, /etc/X11/xorg.conf After reboot I'm in a lower resolution of 640x480, without other options to change it, then open the Details system and it shows me this in the Graphic item: Intel® Ivybridge Mobile I type this in the terminal (no idea what that means, I just saw it in a forum!!!) lspci -vnn | grep '\''[030[02]]' and get this: 00:02.0 VGA compatible controller [0300]: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller]) 01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GF108M [GeForce GT 635M] [10de:0de3] (rev a1) (prog-if 00 [VGA controller]) I installed bumblebee but nothings happens additionally the additional drivers shows me "no propietary Drivers are in use on this system"

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• Windows pysical server provisioning question with HPSA 7.8

  - by warren

  I have a physical server that I am trying to provision Windows to. At 58% of the way through copying files form the Core to the target server, the process hangs with either a samba time-out or an error indicating that %path%\system32\ntoskrnl.exe is missing or corrupt. I can build a VM on the same subnet with the same media (merely a different profile to catch the different unattend.txt file) with no issues. I can also provision RHEL5 to this server with no issues. The buildmgr logs indicate that eventually the job is timing-out. Samba logs show that connections are made, and then eventually closed - about the time that the build process times-out. Any ideas on where to look next?

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• Can someone explain RAID-0 in plain English?

  - by Edward Tanguay

  I've heard about and read about RAID throughout the years and understand it theoretically as a way to help e.g. server PCs reduce the chance of data loss, but now I am buying a new PC which I want to be as fast as possible and have learned that having two drives can considerably increase the perceived performance of your machine. In the question Recommendations for hard drive performance boost, the author says he is going to RAID-0 two 7200 RPM drives together. What does this mean in practical terms for me with Windows 7 installed, e.g. can I buy two drives, go into the device manager and "raid-0 them together"? I am not a network administrator or a hardware guy, I'm just a developer who is going to have a computer store build me a super fast machine next week. I can read the wikipedia page on RAID but it is just way too many trees and not enough forest to help me build a faster PC: RAID-0: "Striped set without parity" or "Striping". Provides improved performance and additional storage but no redundancy or fault tolerance. Because there is no redundancy, this level is not actually a Redundant Array of Inexpensive Disks, i.e. not true RAID. However, because of the similarities to RAID (especially the need for a controller to distribute data across multiple disks), simple strip sets are normally referred to as RAID 0. Any disk failure destroys the array, which has greater consequences with more disks in the array (at a minimum, catastrophic data loss is twice as severe compared to single drives without RAID). A single disk failure destroys the entire array because when data is written to a RAID 0 drive, the data is broken into fragments. The number of fragments is dictated by the number of disks in the array. The fragments are written to their respective disks simultaneously on the same sector. This allows smaller sections of the entire chunk of data to be read off the drive in parallel, increasing bandwidth. RAID 0 does not implement error checking so any error is unrecoverable. More disks in the array means higher bandwidth, but greater risk of data loss. So in plain English, how can "RAID-0" help me build a faster Windows-7 PC that I am going to order next week?

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• Interop effects by resolving and instantiating types with ArcObjects

  - by Marko Apfel

  Problem this code does not work Type t = typeof(ESRI.ArcGIS.Framework.AppRefClass); System.Object obj = Activator.CreateInstance(t); but yet this code Type t = Type.GetTypeFromCLSID(typeof(ESRI.ArcGIS.Framework.AppRefClass).GUID); System.Object obj = Activator.CreateInstance(t); Reason In the first variant the runtime tries to cast to AppRefClass . This is not possible. And in the second one, the runtime does not knows anything about AppRefClass. So it leave it as IUnknown.   (originally communicated by my co-worker Ralf)

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• Managing JS and CSS for a static HTML web application

  - by Josh Kelley

  I'm working on a smallish web application that uses a little bit of static HTML and relies on JavaScript to load the application data as JSON and dynamically create the web page elements from that. First question: Is this a fundamentally bad idea? I'm unclear on how many web sites and web applications completely dispense with server-side generation of HTML. (There are obvious disadvantages of JS-only web apps in the areas of graceful degradation / progressive enhancement and being search engine friendly, but I don't believe that these are an issue for this particular app.) Second question: What's the best way to manage the static HTML, JS, and CSS? For my "development build," I'd like non-minified third-party code, multiple JS and CSS files for easier organization, etc. For the "release build," everything should be minified, concatenated together, etc. If I was doing server-side generation of HTML, it'd be easy to have my web framework generate different development versus release HTML that includes multiple verbose versus concatenated minified code. But given that I'm only doing any static HTML, what's the best way to manage this? (I realize I could hack something together with ERB or Perl, but I'm wondering if there are any standard solutions.) In particular, since I'm not doing any server-side HTML generation, is there an easy, semi-standard way of setting up my static HTML so that it contains code like <script src="js/vendors/jquery.js"></script> <script src="js/class_a.js"></script> <script src="js/class_b.js"></script> <script src="js/main.js"></script> at development time and <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script> <script src="js/entire_app.min.js"></script> for release?

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• Game component causes game to freeze

  - by ChocoMan

  I'm trying to add my camera component to Game1 class' constructor like so: Camera camera; // from class Camera : GameComponent .... public Game1() { graphics = new GraphicsDeviceManager(this); this.graphics.PreferredBackBufferWidth = screenWidth; this.graphics.PreferredBackBufferHeight = screenHieght; this.graphics.IsFullScreen = true; Content.RootDirectory = "Content"; camera = new Camera(this); Components.Add(camera); } From the just adding the last two lines, when I run the game, the screen freezes then gives me this message: An unhandled exception of type 'System.ComponentModel.Win32Exception' occurred in System.Drawing.dll Additional information: The operation completed successfully

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• ASUS Q500A will not boot from live DVD

  - by Sly

  I just purchased a new PC yesterday, an ASUS Q500A. I downloaded Ubuntu 12.10, burned it to a DVD, and tried to install it. As expected, I came to a screen that asked if I wanted to try, install, OEM install, or check the disc. After going to try, the DVD spins up as if it's about to boot the system and then immediately spins down again to leave a black screen. I've tried several boot options: noacpi nolacpi acpi=off Removing quiet splash -- nolacpi results in the DVD drive not spinning up at all. The rest have no effect. Some stats about the system: Intel i5-3210M processor Intel Integrated Graphics 4000 Any tips on other things to try?

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• Open the SQL Server Error Log with PowerShell

  - by BuckWoody

  Using the Server Management Objects (SMO) library, you don’t even need to have the SQL Server 2008 PowerShell Provider to read the SQL Server Error Logs – in fact, you can use regular old everyday PowerShell. Keep in mind you will need the SMO libraries – which can be installed separately or by installing the Client Tools from the SQL Server install media. You could search for errors, store a result as a variable, or act on the returned values in some other way. Replace the Machine Name with your server and Instance Name with your instance, but leave the quotes, to make this work on your system: [reflection.assembly]::LoadWithPartialName("Microsoft.SqlServer.Smo") $machineName = "UNIVAC" $instanceName = "Production" $sqlServer = new-object ("Microsoft.SqlServer.Management.Smo.Server") "$machineName\$instanceName" $sqlServer.ReadErrorLog() Want to search for something specific, like the word “Error”? Replace the last line with this: $sqlServer.ReadErrorLog() | where {$_.Text -like "Error*"} Script Disclaimer, for people who need to be told this sort of thing: Never trust any script, including those that you find here, until you understand exactly what it does and how it will act on your systems. Always check the script on a test system or Virtual Machine, not a production system. Yes, there are always multiple ways to do things, and this script may not work in every situation, for everything. It’s just a script, people. All scripts on this site are performed by a professional stunt driver on a closed course. Your mileage may vary. Void where prohibited. Offer good for a limited time only. Keep out of reach of small children. Do not operate heavy machinery while using this script. If you experience blurry vision, indigestion or diarrhea during the operation of this script, see a physician immediately. Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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• The Oracle Database Appliance: How to Sell a Unique Product Webcast

  - by Cinzia Mascanzoni

  Due to the great success of our webcast on "The Oracle Database Appliance - How to sell a unique product!" held on April 12th, we are going to conduct a recast live on April 19th at 10:00 CET, a learning opportunity for those who missed it. Join us to learn about: ODA Benefits: Fast, Easy, Cost Efficient, Highly Reliable Feedback from early Customer Wins: What can we Learn? Objection Handling: Overcoming the most common customer questions Going beyond the Database: The ODA ECO System for applications, backup & more  When combined with your high-value services (e.g., migration, consolidation), the end result is a database system that you can use to grow the business in your existing accounts, or capture new business. Click here to register to this webcast.

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• Use a proxy which connects to the school proxy

  - by denNorske

  How to get my computer use a proxy ON my computer, which connects to the school proxy ? The reason I ask this, is because I need all programs on my computer, absolutely the whole system to go through the network, without having to use proxy authentication? Then I was thinking of a possibility to use a local proxy without authentication, to connect to the school proxy (with all authentication details), and then be able to make the system go through it? Is that possible? I've heard some stories about using IP-tables to make a transparent proxy, but I have no idea how to do that, as i am pretty new at all this. So, details, explanations and suggestions about this are very welcome! If you need more details, I'll provide them!

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• Clusterware 11gR2 &ndash; Setting up an Active/Passive failover configuration

  - by Gilles Haro

  Oracle is providing a large range of interesting solutions to ensure High Availability of the database. Dataguard, RAC or even both configurations (as recommended by Oracle for a Maximum Available Architecture - MAA) are the most frequently found and used solutions. But, when it comes to protecting a system with an Active/Passive architecture with failover capabilities, people often thinks to other expensive third party cluster systems. Oracle Clusterware technology, which comes along at no extra-cost with Oracle Database or Oracle Unbreakable Linux, is - in the knowing of most people - often linked to Oracle RAC and therefore, is seldom used to implement failover solutions. Oracle Clusterware 11gR2  (a part of Oracle 11gR2 Grid Infrastructure)  provides a comprehensive framework to setup automatic failover configurations. It is actually possible to make "failover-able'", and then to protect, almost any kind of application (from the simple xclock to the most complex Application Server). Quoting Oracle: “Oracle Clusterware is a portable cluster software that allows clustering of single servers so that they cooperate as a single system. Oracle Clusterware also provides the required infrastructure for Oracle Real Application Clusters (RAC). In addition Oracle Clusterware enables the protection of any Oracle application or any other kind of application within a cluster.” In the next couple of lines, I will try to present the different steps to achieve this goal : Have a fully operational 11gR2 database protected by automatic failover capabilities. I assume you are fluent in installing Oracle Database 11gR2, Oracle Grid Infrastructure 11gR2 on a Linux system and that ASM is not a problem for you (as I am using it as a shared storage). If not, please have a look at Oracle Documentation. As often, I made my tests using an Oracle VirtualBox environment. The scripts are tested and functional on my system. Unfortunately, there can always be a typo or a mistake. This blog entry does not replace a course around the Clusterware Framework. I just hope it will let you see how powerful it is and that it will give you the whilst to go further with it...  Note : This entry has been revised (rev.2) following comments from Philip Newlan. Prerequisite 2 Linux boxes (OELCluster01 and OELCluster02) at the same OS level. I used OEL 5 Update 5 with an Enterprise Kernel. Shared Storage (SAN). On my VirtualBox system, I used Openfiler to simulate the SAN Oracle 11gR2 Database (11.2.0.1) Oracle 11gR2 Grid Infrastructure (11.2.0.1)   Step 1 - Install the software Using asmlib, create 3 ASM disks (ASM_CRS, ASM_DTA and ASM_FRA) Install Grid Infrastructure for a cluster (OELCluster01 and OELCluster02 are the 2 nodes of the cluster) Use ASM_CRS to store Voting Disk and OCR. Use SCAN. Install Oracle Database Standalone binaries on both nodes. Use asmca to check/mount the disk groups on 2 nodes Use dbca to create and configure a database on the primary node Let's name it DB11G. Copy the pfile, password file to the second node. Create adump directoty on the second node.   Step 2 - Setup the resource to be protected After its creation with dbca, the database is automatically protected by the Oracle Restart technology available with Grid Infrastructure. Consequently, it restarts automatically (if possible) after a crash (ex: kill -9 smon). A database resource has been created for that in the Cluster Registry. We can observe this with the command : crsctl status resource that shows and ora.dba11g.db entry. Let's save the definition of this resource, for future use : mkdir -p /crs/11.2.0/HA_scripts chown oracle:oinstall /crs/11.2.0/HA_scripts crsctl status resource ora.db11g.db -p > /crs/11.2.0/HA_scripts/myResource.txt Although very interesting, Oracle Restart is not cluster aware and cannot restart the database on any other node of the cluster. So, let's remove it from the OCR definitions, we don't need it ! srvctl stop database -d DB11G srvctl remove database -d DB11G Instead of it, we need to create a new resource of a more general type : cluster_resource. Here are the steps to achieve this : Create an action script :  /crs/11.2.0/HA_scripts/my_ActivePassive_Cluster.sh #!/bin/bash export ORACLE_HOME=/oracle/product/11.2.0/dbhome_1 export ORACLE_SID=DB11G case $1 in 'start')   $ORACLE_HOME/bin/sqlplus /nolog <<EOF   connect / as sysdba   startup EOF   RET=0   ;; 'stop')   $ORACLE_HOME/bin/sqlplus /nolog <<EOF   connect / as sysdba   shutdown immediate EOF   RET=0   ;; 'clean')   $ORACLE_HOME/bin/sqlplus /nolog <<EOF   connect / as sysdba   shutdown abort    ##for i in `ps -ef | grep -i $ORACLE_SID | awk '{print $2}' ` ;do kill -9 $i; done EOF   RET=0   ;; 'check')    ok=`ps -ef | grep smon | grep $ORACLE_SID | wc -l`    if [ $ok = 0 ]; then      RET=1    else      RET=0    fi    ;; '*')      RET=0   ;; esac if [ $RET -eq 0 ]; then    exit 0 else    exit 1 fi   This script must provide, at least, methods to start, stop, clean and check the database. It is self-explaining and contains nothing special. Just be aware that it must be runnable (+x), it runs as Oracle user (because of the ACL property - see later) and needs to know about the environment. Also make sure it exists on every node of the cluster. Moreover, as of 11.2, the clean method is mandatory. It must provide the “last gasp clean up”, for example, a shutdown abort or a kill –9 of all the remaining processes. chmod +x /crs/11.2.0/HA_scripts/my_ActivePassive_Cluster.sh scp  /crs/11.2.0/HA_scripts/my_ActivePassive_Cluster.sh   oracle@OELCluster02:/crs/11.2.0/HA_scripts Create a new resource file, based on the information we got from previous  myResource.txt . Name it myNewResource.txt. myResource.txt  is shown below. As we can see, it defines an ora.database.type resource, named ora.db11g.db. A lot of properties are related to this type of resource and do not need to be used for a cluster_resource. NAME=ora.db11g.db TYPE=ora.database.type ACL=owner:oracle:rwx,pgrp:oinstall:rwx,other::r-- ACTION_FAILURE_TEMPLATE= ACTION_SCRIPT= ACTIVE_PLACEMENT=1 AGENT_FILENAME=%CRS_HOME%/bin/oraagent%CRS_EXE_SUFFIX% AUTO_START=restore CARDINALITY=1 CHECK_INTERVAL=1 CHECK_TIMEOUT=600 CLUSTER_DATABASE=false DB_UNIQUE_NAME=DB11G DEFAULT_TEMPLATE=PROPERTY(RESOURCE_CLASS=database) PROPERTY(DB_UNIQUE_NAME= CONCAT(PARSE(%NAME%, ., 2), %USR_ORA_DOMAIN%, .)) ELEMENT(INSTANCE_NAME= %GEN_USR_ORA_INST_NAME%) DEGREE=1 DESCRIPTION=Oracle Database resource ENABLED=1 FAILOVER_DELAY=0 FAILURE_INTERVAL=60 FAILURE_THRESHOLD=1 GEN_AUDIT_FILE_DEST=/oracle/admin/DB11G/adump GEN_USR_ORA_INST_NAME= GEN_USR_ORA_INST_NAME@SERVERNAME(oelcluster01)=DB11G HOSTING_MEMBERS= INSTANCE_FAILOVER=0 LOAD=1 LOGGING_LEVEL=1 MANAGEMENT_POLICY=AUTOMATIC NLS_LANG= NOT_RESTARTING_TEMPLATE= OFFLINE_CHECK_INTERVAL=0 ORACLE_HOME=/oracle/product/11.2.0/dbhome_1 PLACEMENT=restricted PROFILE_CHANGE_TEMPLATE= RESTART_ATTEMPTS=2 ROLE=PRIMARY SCRIPT_TIMEOUT=60 SERVER_POOLS=ora.DB11G SPFILE=+DTA/DB11G/spfileDB11G.ora START_DEPENDENCIES=hard(ora.DTA.dg,ora.FRA.dg) weak(type:ora.listener.type,uniform:ora.ons,uniform:ora.eons) pullup(ora.DTA.dg,ora.FRA.dg) START_TIMEOUT=600 STATE_CHANGE_TEMPLATE= STOP_DEPENDENCIES=hard(intermediate:ora.asm,shutdown:ora.DTA.dg,shutdown:ora.FRA.dg) STOP_TIMEOUT=600 UPTIME_THRESHOLD=1h USR_ORA_DB_NAME=DB11G USR_ORA_DOMAIN=haroland USR_ORA_ENV= USR_ORA_FLAGS= USR_ORA_INST_NAME=DB11G USR_ORA_OPEN_MODE=open USR_ORA_OPI=false USR_ORA_STOP_MODE=immediate VERSION=11.2.0.1.0 I removed database type related entries from myResource.txt and modified some other to produce the following myNewResource.txt. Notice the NAME property that should not have the ora. prefix Notice the TYPE property that is not ora.database.type but cluster_resource. Notice the definition of ACTION_SCRIPT. Notice the HOSTING_MEMBERS that enumerates the members of the cluster (as returned by the olsnodes command). NAME=DB11G.db TYPE=cluster_resource DESCRIPTION=Oracle Database resource ACL=owner:oracle:rwx,pgrp:oinstall:rwx,other::r-- ACTION_SCRIPT=/crs/11.2.0/HA_scripts/my_ActivePassive_Cluster.sh PLACEMENT=restricted ACTIVE_PLACEMENT=0 AUTO_START=restore CARDINALITY=1 CHECK_INTERVAL=10 DEGREE=1 ENABLED=1 HOSTING_MEMBERS=oelcluster01 oelcluster02 LOGGING_LEVEL=1 RESTART_ATTEMPTS=1 START_DEPENDENCIES=hard(ora.DTA.dg,ora.FRA.dg) weak(type:ora.listener.type,uniform:ora.ons,uniform:ora.eons) pullup(ora.DTA.dg,ora.FRA.dg) START_TIMEOUT=600 STOP_DEPENDENCIES=hard(intermediate:ora.asm,shutdown:ora.DTA.dg,shutdown:ora.FRA.dg) STOP_TIMEOUT=600 UPTIME_THRESHOLD=1h Register the resource. Take care of the resource type. It needs to be a cluster_resource and not a ora.database.type resource (Oracle recommendation) .   crsctl add resource DB11G.db  -type cluster_resource -file /crs/11.2.0/HA_scripts/myNewResource.txt Step 3 - Start the resource crsctl start resource DB11G.db This command launches the ACTION_SCRIPT with a start and a check parameter on the primary node of the cluster. Step 4 - Test this We will test the setup using 2 methods. crsctl relocate resource DB11G.db This command calls the ACTION_SCRIPT  (on the two nodes)  to stop the database on the active node and start it on the other node. Once done, we can revert back to the original node, but, this time we can use a more "MS$ like" method :Turn off the server on which the database is running. After short delay, you should observe that the database is relocated on node 1. Conclusion Once the software installed and the standalone database created (which is a rather common and usual task), the steps to reach the objective are quite easy : Create an executable action script on every node of the cluster. Create a resource file. Create/Register the resource with OCR using the resource file. Start the resource. This solution is a very interesting alternative to licensable third party solutions. References Clusterware 11gR2 documentation Oracle Clusterware Resource Reference Clusterware for Unbreakable Linux Using Oracle Clusterware to Protect A Single Instance Oracle Database 11gR1 (to have an idea of complexity) Oracle Clusterware on OTN   Gilles Haro Technical Expert - Core Technology, Oracle Consulting   

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• What's the strategy to implement a "knowledge base" in my company. [closed]

  - by Oscar Reyes

  In my current work we think we can get benefit from having a knowledge base, so the next time someone has a question/problem etc, that base can be consulted and an answer will show up. Also, it will reduce the risk from having people leaving the company with the knowledge and we would have to start all over again. My question is, what strategy can we follow to implement/buy/get/build/etc this knowledge base? Are there software ready for this? Would it be better to have something build by ourselves ( we have some programmers ) This is an small company ( < 30 ) and the base should be accessible from outside the office ( when the employees are with the customer etc.) so I guess a webapp is in order.

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• Best Platform/Engine for turn based Client/Server Android game

  - by Paradine

  I'm currently designing a turn based game for tablets. Initially for Android with porting to iOS later considered in design. I'm having trouble narrowing down the available technologies to even know where to spend my research time. I am hoping that if I explain what I am trying to achieve someone may be able to suggest a platform and/or engine. I've looked into some of the open source Engines ( http://www.cuteandroid.com/ten-open-source-android-2d-or-3d-game-engine-for-android-developers ) and some appear to handle much of what I might require - although with a higher focus on graphics than i need. Mages looks interesting although development appears to have ceased. If I could somehow leverage GoogleApps that would be excellent. Here is what I am trying to achieve: PvP turn based strategy game over internet - minimal animation and bandwidth required Players match up online using MetaGame system MatchID created on Resolution Server and Game starts Clients have 30 second countdown to select MoveString Clients sends small secure timestamped and MatchIDed MoveString to Resolution server Resolution server looks up Move String for each player, Resolves and Updates Players status in MatchID on Server Resolution server updates Client Views Repeat until victory conditions met - MatchID Closed, Rewards earned in MetaGame There will also need to be a full social and account system and metagame backend - but this could be running on separate system(s) Tablet in Offline mode would be catalog browsing and perhaps single player AI - bum I'm focusing on the Resolution Server at this point I'm not even certain if I would be looking at an Android App or a WebApp at this stage! I want a custom GUI so I guess an app - but maybe as I have little animation a WebApp might also work. Probably some combination of both. There will be very small overhead in data between client server - essentially a small text string every 30 seconds sent to the Resolution server which looks up the Effect and applies it to the Opponents string and determines some results to apply to the match. The client view is updated minimally with the results (only 5 in game Integers tracked) - perhaps triggering small animations/popups on the client to show the end result. e.g Explosion. If you have suggestions for a good technology or platform to best achieving the Resolution Server I'd love to hear. Also if you have experience with open source Engines - and could narrow down which (if any ) might be most suitable that would be a big help. Thanks in advance

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• Java issues on OpenVZ Ubuntu 11.04 (.jar/.sh files)

  - by IWillNotChange

  I've had a whole line of messes with java and .jar files. I've tried both OpenJDK (from software installer) and about three repositories for Sun. /Desktop# java -jar -Xmx1024m ss.jar Exception in thread "main" java.awt.HeadlessException at java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:173) at java.awt.Window.<init>(Window.java:476) at java.awt.Frame.<init>(Frame.java:419) at java.awt.Frame.<init>(Frame.java:384) at javax.swing.JFrame.<init>(JFrame.java:174) at org.powerbot.bd.<init>(Unknown Source) at org.powerbot.Boot.main(Unknown Source) Two separate errors: ~/Desktop# ./ss.sh [SEVERE] org.server.Boot: Default heap size of 490m too small, restarting with 768m and about 30 different crashes were it just "aborts" with a huge file dump. Each time I've tried something a little different, whether it be updating Java or just changing -Xmx1024 to -Xmx1024m to get rid of the heap. Personally I think it has something to do with OpenVZ, but Google hasn't saved me this time, I need someone who can get to the bottom of my problem. java -version java version "1.6.0_26" Java(TM) SE Runtime Environment (build 1.6.0_26-b03) Java HotSpot(TM) 64-Bit Server VM (build 20.1-b02, mixed mode) is my current install. Running ss.sh gives me: (I'd post the entire log but its long) # # A fatal error has been detected by the Java Runtime Environment: # # SIGILL (0x4) at pc=0x00002b14278e6fa0, pid=9301, tid=47365590714112 # # JRE version: 6.0_26-b03 # Java VM: Java HotSpot(TM) 64-Bit Server VM (20.1-b02 mixed mode linux-amd64 compressed oops) # Problematic frame: # C [ld-linux-x86-64.so.2+0x14fa0] _dl_make_stack_executable+0x2b50 # # If you would like to submit a bug report, please visit: # http://java.sun.com/webapps/bugreport/crash.jsp # The crash happened outside the Java Virtual Machine in native code. # See problematic frame for where to report the bug. # I'm willing to let someone who knows what they are talking about view it and try and sort this out. Any help would be appreciated, I've about pulled all my hair Googling to no avail.

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• BUILDROOT files during RPM generation

  - by khmarbaise

  Currently i have the following spec file to create a RPM. The spec file is generated by maven plugin to produce a RPM out of it. The question is: will i find files which are mentioned in the spec file after the rpm generation inside the BUILDROOT/SPECS/SOURCES/SRPMS structure? %define _unpackaged_files_terminate_build 0 Name: rpm-1 Version: 1.0 Release: 1 Summary: rpm-1 License: 2009 my org Distribution: My App Vendor: my org URL: www.my.org Group: Application/Collectors Packager: my org Provides: project Requires: /bin/sh Requires: jre >= 1.5 Requires: BASE_PACKAGE PreReq: dependency Obsoletes: project autoprov: yes autoreq: yes BuildRoot: /home/build/.jenkins/jobs/rpm-maven-plugin/workspace/target/it/rpm-1/target/rpm/rpm-1/buildroot %description %install if [ -e $RPM_BUILD_ROOT ]; then mv /home/build/.jenkins/jobs/rpm-maven-plugin/workspace/target/it/rpm-1/target/rpm/rpm-1/tmp-buildroot/* $RPM_BUILD_ROOT else mv /home/build/.jenkins/jobs/rpm-maven-plugin/workspace/target/it/rpm-1/target/rpm/rpm-1/tmp-buildroot $RPM_BUILD_ROOT fi ln -s /usr/myusr/app $RPM_BUILD_ROOT/usr/myusr/app2 ln -s /tmp/myapp/somefile $RPM_BUILD_ROOT/tmp/myapp/somefile2 ln -s name.sh $RPM_BUILD_ROOT/usr/myusr/app/bin/oldname.sh %files %defattr(-,myuser,mygroup,-) %dir "/usr/myusr/app" "/usr/myusr/app2" "/tmp/myapp/somefile" "/tmp/myapp/somefile2" "/usr/myusr/app/lib" %attr(755,myuser,mygroup) "/usr/myusr/app/bin/start.sh" %attr(755,myuser,mygroup) "/usr/myusr/app/bin/filter-version.txt" %attr(755,myuser,mygroup) "/usr/myusr/app/bin/name.sh" %attr(755,myuser,mygroup) "/usr/myusr/app/bin/name-Linux.sh" %attr(755,myuser,mygroup) "/usr/myusr/app/bin/filter.txt" %attr(755,myuser,mygroup) "/usr/myusr/app/bin/oldname.sh" %dir "/usr/myusr/app/conf" %config "/usr/myusr/app/conf/log4j.xml" "/usr/myusr/app/conf/log4j.xml.deliver" %prep echo "hello from prepare" %pre -p /bin/sh #!/bin/sh if [ -s "/etc/init.d/myapp" ] then /etc/init.d/myapp stop rm /etc/init.d/myapp fi %post #!/bin/sh #create soft link script to services directory ln -s /usr/myusr/app/bin/start.sh /etc/init.d/myapp chmod 555 /etc/init.d/myapp %preun #!/bin/sh #the argument being passed in indicates how many versions will exist #during an upgrade, this value will be 1, in which case we do not want to stop #the service since the new version will be running once this script is called #during an uninstall, the value will be 0, in which case we do want to stop #the service and remove the /etc/init.d script. if [ "$1" = "0" ] then if [ -s "/etc/init.d/myapp" ] then /etc/init.d/myapp stop rm /etc/init.d/myapp fi fi; %triggerin -- dependency, dependency1 echo "hello from install" %changelog * Tue May 23 2000 Vincent Danen <[email protected]> 0.27.2-2mdk -update BuildPreReq to include rep-gtk and rep-gtkgnome * Thu May 11 2000 Vincent Danen <[email protected]> 0.27.2-1mdk -0.27.2 * Thu May 11 2000 Vincent Danen <[email protected]> 0.27.1-2mdk -added BuildPreReq -change name from Sawmill to Sawfish The problem i found is that the files (filter.txt in particular) after the generation process on a Ubuntu system but not on SuSE system. Which might be caused by different rpm versions ? Currently we have an integration test which fails based on the non existing of the file (filter.txt under a buildroot folder?)

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• ALT+SysRq+REISUB hangs at "resetting" (without actually resetting/restarting) in Maverick

  - by Andrei

  I'm trying ALT+SysRq+REISUB to see how it would be used to restart my system safely in case of emergency. However, I find that ALT+SysRq+REISUB hangs at "resetting" (without actually resetting/restarting) in Maverick. All other SysRq combinations appear to work correctly (i.e. ALT+SysRq+REISU). cat /proc/sys/kernel/sysrq returns 0. But I'm not sure it's relevant because ALT+SysRq certainly works. What can I do to have "B" actually restart the system? Thanks!

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• Intel graphics Ubuntu 12.04.3 LTS: does not detect second monitor

  - by user206551

  I have some problems to get the second monitor working on my Ubuntu 12.04.3 LTS. If I click on the detect button it does not work. Info about my system: $uname -a Linux LabTop2 3.8.0-32-generic #47~precise1-Ubuntu SMP Wed Oct 2 16:22:28 UTC 2013 i686 i686 i386 GNU/Linux $cat /etc/*-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=12.04 DISTRIB_CODENAME=precise DISTRIB_DESCRIPTION="Ubuntu 12.04.3 LTS" NAME="Ubuntu" VERSION="12.04.3 LTS, Precise Pangolin" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu precise (12.04.3 LTS)" VERSION_ID="12.04" $lspci |grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) $lsmod | grep video uvcvideo 72250 0 videobuf2_core 39385 1 uvcvideo videodev 96131 2 uvcvideo,videobuf2_core videobuf2_vmalloc 12920 1 uvcvideo videobuf2_memops 13042 1 videobuf2_vmalloc video 19116 1 i915 $xrandr -q xrandr: Failed to get size of gamma for output default Screen 0: minimum 1366 x 768, current 1368 x 768, maximum 1368 x 768 default connected 1368x768+0+0 0mm x 0mm 1366x768 0.0 1368x768 0.0* Before upgrading the system, xrand -q showed my much more resolution options and the other monitor. I have tried to install intel-linux-graphics-installer but this version of ubuntu is not supported Any help will be apreciated!!

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• Why does my Grub have two entries for Windows?

  - by Tomas Lycken

  I have a dual boot system with Ubuntu 12.04 and Windows 7, using GRUB2 (with Burg) as boot loader. For some reason, the Windows installation shows up twice in the boot menu: Ubuntu GNU/Linux, with Linux 3.2.0-24-generic Ubuntu GNU/Linux, with Linux 3.2.0-24-generic (recovery mode) Windows 7 (loader) (on /dev/sda1) Windows 7 (loader) (on /dev/sda2) If I look in my partition table, /dev/sda2 is C:\ of the Windows installation, and /dev/sda1 is the "System Reserved" partition (which, IIRC, is Windows' own bootloader). Furthermore, gparted shows /dev/sda2 - but no other partitions - with a boot flag: What is going on here? I'd like to have only the entries for Ubuntu and one entry for Windows in my boot menu - how do I remove one of them?

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• Creating reproducible builds to verify Free Software

  - by mikkykkat

  Free Software is about freedom and privacy, Open Source software is great but making that fully practical usually won't happen. Most Free Software developers publicize binaries that we can't verify are really compiled from the source code or have something bad injected already! We have the freedom to change the code, but privacy for ordinary users is missing. For desktop software there is a lot of languages and opportunities to create Free Software with a reproducible build process (compiling source code to always produce the exact same binary), but for mobile computing I don't know if same thing is possible or not? Mobile devices are probably the future of computing and Android is the only Open Source environment so far which accept Java for coding. Compiling same Android application won't result in the exact same binary every time. For Open Source Android apps how we can verify the produced binary (.apk) is really compiled from the source code? Is there any way to create reproducible builds from the Android SDK or does Java fail here for Free Software? is there any java software ever wrote with a reproducible build?

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• Turn off Windows Defender on your builds

  - by george_v_reilly

  I've spent some time this evening profiling a Python application on Windows, trying to find out why it was so much slower than on Mac or Linux. The application is an in-house build tool which reads a number of config files, then writes some output files. Using the RunSnakeRun Python profile viewer on Windows, two things immediately leapt out at me: we were running os.stat a lot and file.close was really expensive. A quick test convinced me that we were stat-ing the same files over and over. It was a combination of explicit checks and implicit code, like os.walk calling os.path.isdir. I wrote a little cache that memoizes the results, which brought the cost of the os.stats down from 1.5 seconds to 0.6. Figuring out why closing files was so expensive was harder. I was writing 77 files, totaling just over 1MB, and it was taking 3.5 seconds. It turned out that it wasn't the UTF-8 codec or newline translation. It was simply that closing those files took far longer than it should have. I decided to try a different profiler, hoping to learn more. I downloaded the Windows Performance Toolkit. I recorded a couple of traces of my application running, then I looked at them in the Windows Performance Analyzer, whereupon I saw that in each case, the CPU spike of my app was followed by a CPU spike in MsMpEng.exe. What's MsMpEng.exe? It's Microsoft's antimalware engine, at the heart of Windows Defender. I added my build tree to the list of excluded locations, and my runtime halved. The 3.5 seconds of file closing dropped to 60 milliseconds, a 98% reduction. The moral of this story is: don't let your virus checker run on your builds.

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• Rasbperry Pi Mod Offers One Button Audiobook Playback

  - by Jason Fitzpatrick

  How do you design an audiobook player for an elderly book lover who doesn’t want to wrestle with new technology? Simple and with a single button interface is a great place to start. This clever and thoughtful build comes to us courtesy of tinker Michael Clemens. His wife’s grandmother, in her 90s, is visually impaired but still loves to take in books via audiobooks. In an effort to make modern MP3 audiobooks accessible to her, Michael built a dedicated audiobook reader based off Rasbperry Pi and programmed it to use a single button. The system boots, loads the audiobook it finds on the attached USB drive, and loads up its track position from memory. Press the button to resume play or, for a refresher, hold the button for four seconds to start the track over. While you may not be in the market for a one-button audiobook player for an elderly relative, the same simple design could be easily adopted, via new scripts, to another function. Hit up the link below to read more about the build. The One Button Audiobook Player [via Hack A Day] How To Play DVDs on Windows 8 6 Start Menu Replacements for Windows 8 What Is the Purpose of the “Do Not Cover This Hole” Hole on Hard Drives?

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