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  • RTS Game Style Application [closed]

    - by Daniel Wynand van Wyk
    My question may seem somewhat odd, but I hope that my specifications will clarify EXACTLY what it is that I am after. I need some help choosing the right tooling for a particular endeavour. My background is in desktop application development and large back-end systems. I have worked primarily on the Microsoft stack using C# and the .Net framework. My goal is to develop a 2D, RTS style, interactive office simulation. The simulation will model various office spaces, office equipment, employees and their interactions with one another. The idea is to abstract the concept of an office completely. Under the hood the application will do many things that are nothing like a game. This includes P2P networking, VPN tunnelling, streaming video, instant messaging, document collaboration, remote screen sharing, file-sharing, virus scanning, VOIP, document scanning, faxing, emailing, distributed computing, content management and much more! A somewhat similar thing has been attempted by IBM, where they created a virtual office in second life. If their attempt was a game, the game-play would be notably horrible, to say the least! The users/players will drive and control my application through the various objects modelled in the simulation. A single application capable of performing all of these various tasks would be a nightmare to navigate for even the most expert user. Using the concept of a game, I can easily separate functionality by assigning them to objects that relate 1-1 with their real world counter-parts. This can greatly simplify computing for novice users, with many added benefits in terms of visibility, transparency of process and centralized configuration. My hope is to make complex computing tasks accessible to all kinds of users and to greatly reduce the cognitive load associated with using the many different utilities and applications inside office settings. The complexity is therefore limited to the complexity of the space in which you find yourself. I want the application to target as many platforms as possible and run on computers that have no accelerated graphics capabilities. The simulation won't contain any of the fancy eye-candy you find in modern games, to the contrary, my "game" will purposefully be clean and simple. The closest thing I could imagine would be an old game like "Theme Hospital" or the first instalment of "The Sims". All the content will be pre-created and not user-generated like Second Life. New functionality will be added via a plugin system. Given my background and nature of my "game", I would like to spend most of my time writing code that does not have to do with the simulated office, as the "game" is really just a glorified application menu. I have done much reading about existing engines, frameworks and tools. I need the help of an experienced game developer who has tried and tested various products over the years who can guide me in the right direction given my very particular needs. I would appreciate any help I can get!

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  • An Unstoppable Force!

    - by TammyBednar
    Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Building a high-availability database platform presents unique challenges. Combining servers, storage, networking, OS, firmware, and database is complicated and raises important concerns: Will coordination between multiple SME’s delay deployment? Will it be reliable? Will it scale? Will routine maintenance consume precious IT-staff time? Ultimately, will it work? Enter the Oracle Database Appliance, a complete package of software, server, storage, and networking that’s engineered for simplicity. It saves time and money by simplifying deployment, maintenance, and support of database workloads. Plus, it’s based on Intel Xeon processors to ensure a high level of performance and scalability. Take a look at this video to compare Heather and Ted’s approach to building a server for their Oracle database! http://www.youtube.com/watch?v=os4RDVclWS8 If you missed the “Compare Database Platforms: Build vs. Buy” webcast or want to listen again to find out how Jeff Schulte - Vice President at Yodlee uses Oracle Database Appliance.

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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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  • Code Design question, circular reference across classes?

    - by dsollen
    I have no code here, as this is more of a design question (I assume this is still the best place to ask it). I have a very simple server in java which stores a mapping between certain values and UUID which are to be used by many systems across multiple platforms. It accepts a connection from a client and creates a clientSocket which stores the socket and all the other relevant data unique to that connection. Each clientSocket will run in their own thread and will block on the socket waiting for a read. I expect very little strain on this system, it will rarely get called, but when it does get a call it will need to respond quickly and due to the risk of it having a peak time with multiple calls coming in at once threaded is still better. Each thread has a reference to a Mapper class which stores the mapping of UUID which it's reporting to others (with proper synchronization of course). This all works until I have to add a new UUID to the list. When this happens I want to report to all clients that care about that particular UUID that a new one was added. I can't multicast (limitation of the system I'm running on) so I'm having each socket send the message to the client through the established socket. However, since each thread only knows about the socket it's waiting on I didn't have a clear method of looking up every thread/socket that cares about the data to inform them of the new UUID. Polling is out mostly because it seems a little too convoluted to try to maintain a list of newly added UUID. My solution as of now is to have the 'parent' class which creates the mapper class and spawns all the threads pass itself as an argument to the mapper. Then when the mapper creates a new UUID it can make a call to the parent class telling it to send out updates to all the other sockets that care about the change. I'm concerned that this may be a bad design due to the use of a circular reference; parent has a reference to mapper (to pass it to new ClientSocket threads) and mapper points to parent. It doesn't really feel like a bad design to me but I wanted to check since circular references are suppose to be bad. Note: I realize this means that the thread associated with whatever socket originally received the request that spawned the creation of a UUID is going to pay the 'cost' of outputting to all the other clients that care about the new UUID. I don't care about this; as I said I suspect the client to receive only intermittent messages. It's unlikely for one socket to receive multiple messages at one time, and there won't be that many sockets so it shouldn't take too long to send messages to each of them. Perhaps later I'll fix the fact that I'm saddling higher work load on whatever unfortunate thread gets the first request; but for now I think it's fine.

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  • Oracle OpenWorld is on the Horizon

    - by Matthew Haavisto
    Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Oracle OpenWorld 2012 is only a few months away, and we're excited about our slate of sessions and other activities scheduled this year.  PeopleSoft sessions are perennially among the best attended and well-received sessions, and we plan to keep that trend going. We have a full complement of sessions planned, from updates for some of your yearly favorites to lots of completely new topics.  Some of the long-standing favorites include the PeopleSoft Technology Roadmap, PeopleTools Tips and Techniques and a number of candid panel discussions. Coverage of the latest trends include new sessions on PeopleSoft on mobile platforms, PeopleSoft's new user experience and interaction model, advances in reporting and analytics and employing virtualization to reduce costs.  The PeopleTools team is also working closely with Applications groups this year to demonstrate to users how advances in PeopleTools will have a direct and beneficial impact on the latest applications releases.  There are plenty of sessions for developers and administrators as well, from sessions on enhancing, integrating, maintaining, and securing your applications, to tuning for performance.  We'll also update you on the latest platform roadmap. In addition to these conventional sessions, we will of course be manning the demo pods, where you'll be able to see the latest functionality first hand. We plan to engage in lots of direct customer interaction.  One of the highlights each year for our team as well as attendees is the session in which a panel of senior PeopleTools leaders talks candidly and engages in open Q&A with customers about our products.  This is definitely a discussion worth joining in on. Keep your eyes on this blog in the coming weeks for details on many of the sessions we have planned.  We look forward to seeing you at OpenWorld 2012!

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  • JCP.next.3: time to get to work

    - by Patrick Curran
    As I've previously reported in this blog, we planned three JSRs to improve the JCP’s processes and to meet our members’ expectations for change. The first - JCP.next.1, or more formally JSR 348: Towards a new version of the Java Community Process - was completed in October 2011. This focused on a small number of simple but important changes to make our process more transparent and to enable broader participation. We're already seeing the benefits of these changes as new and existing JSRs adopt the new requirements. However, because we wanted to complete this JSR quickly we deliberately postponed a number of more complex items, including everything that would require modifying the JSPA (the legal agreement that members sign when they join the organization) to a follow-on JSR. The second JSR (JSR 355: JCP Executive Committee Merge) is in progress now and will complete later this year. This JSR is even simpler than the first, and is focused solely on merging the two Executive Committees into one for greater efficiency and to encourage synergies between the Java ME and Java SE platforms. Continuing the momentum to move Java and the JCP forward we have just filed the third JSR (JCP.next.3) as JSR 358: A major revision of the Java Community Process. This JSR will modify the JSPA as well as the Process Document, and will tackle a large number of complex issues, many of them postponed from JSR 348. For these reasons we expect to spend a considerable amount of time working on it - at least a year, and probably more. The current version of the JSPA was created back in 2002, although some minor changes were introduced in 2005. Since then the organization and the environment in which we operate have changed significantly, and it is now time to revise our processes to ensure that they meet our current needs. We have a long list of topics to be considered, including the role of independent implementations (those not derived from the Reference Implementation), licensing and open source, ensuring that our new transparency requirements are implemented correctly, compatibility policy and TCKs, the role of individual members, patent policy, and IP flow. The Expert Group for JSR 358, as with all process-change JSRs, consists of all members of the Executive Committees. Even though the JSR has just been filed we started discussions on the various topics several months ago (see the EC's meeting minutes for details) and our EC members - including the new members who joined within the last year or two - are actively engaged. Now it's your opportunity to get involved. As required by version 2.8 of our Process (introduced with JSR 348) we will conduct all our business in the open. We have a public java.net project where you can follow and participate in our work. All of our deliberations will be copied to a public Observer mailing list, we'll track our issues on a public Issue Tracker, and all our documents (meeting agendas and minutes, task lists, working drafts) will be published in our Document Archive. We're just getting started, but we do want your input. Please visit us on java.net where you can learn how to participate. Let's get to work...

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  • Testing and Validation – You Really Do Have The Time

    - by BuckWoody
    One of the great advantages in my role as a Technical Specialist here at Microsoft is that I get to work with so many great clients. I get to see their environments and how they use them, and the way they work with SQL Server. I’ve been a data professional myself for many years. Over that time I’ve worked with many database platforms, lots of client applications, and written a lot of code in many industries. For a while I was also a consultant, so I got to see how other shops did things as well. But because I now focus on a “set” base of clients (over 500 professionals in over 150 companies) I get to see them over a longer period of time. Many of them help me understand how they use the product in their projects, and I even attend some DBA regular meetings. I see the way the product succeeds, and I see when it fails. Something that has really impacted my way of thinking is the level of importance any given shop is able to place on testing and validation. I’ve always been a big proponent of setting up a test system and following a very disciplined regimen to make sure it will work in production for any new projects, and then taking the lessons learned into production as standards. I know, I know – there’s never enough time to do things right like this. Yet the shops I see that do it have the same level of work that they output as the shops that don’t. They just make the time to do the testing and validation and create a standard that they will follow in production. And what I’ve found (surprise surprise) is that they have fewer production problems. OK, that might seem obvious – but I’ve actually tracked it and those places that do the testing and best practices really do save stress, time and trouble from that effort. We all think that’s a good idea, but we just “don’t have time”. OK – but from what I’m seeing, you can gain time if you spend a little up front. You may find that you’re actually already spending the same amount of time that you would spend in doing the testing, you’re just doing it later, at night, under the gun. Food for thought.  Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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  • Working with Windows and Unix

    - by user554629
    Beware of new line characters One of the most frequent issues we encounter in Tech Support is the corruption of files that are transferred between Windows and Unix.   The transfer can occur at any stage, but ultimately involves a transfer of a file using an ftp client that is running on Windows;  it could be ftp or filezilla. Windows uses two characters to mark the end of a line in a text file (CR/LF),carriage return, linefeed.   Unix uses a single character (CR). In all situations, it is best to use binary mode transfer for all files, including ascii text files. Common problems: upload a core file from unix to windows using ftp in ascii mode.The file is going to be larger on Windows than Unix.ftp doesn't know if this is a text file with real line-ends, it takes every ascii CR and transmits two ascii characters CR/LF.The core file, tar file, library ... will be corrupted when transferred to Oracle. download a shell script to Windows, and transfer it to Unix using ftpIf the file is edited on Windows, the unix script line-end chars will be doubled.Unix doesn't know how to handle that, and will likely tell you the script is not executable.Why?  The first line of a shell script ( called "sh-bang" ), identifies the command interpreter the unix shell should use for this script.   Common examples:#/bin/sh#/bin/ksh#/bin/bash#/bin/perl#/bin/sh^M    # will not be understood.#/bin/env ksh # special syntax.  Find ksh and run it dos2unix is a common utility found on most unix platforms, that repairs the issue of Windows LineEnd characters in unix script files.   I've written my own flavor of this utility for use in Tech Support and build environments, that is a bit easier to use, and has some nice side-effects. accepts a list of files:   dos2unix *.sh repairs the file in-place.  Doesn't generate a new file you have to name retains the same timestamp;  it is the encoding that changed, not the file content. Here are the versions of dos2unix for each of the environments we work in.They are compressed with gzip, to avoid the ftp ascii transfer trap,and because I am quite limited in the number of files I can upload to this blog. AIX Linux Solaris sparc  Windows 

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  • MOSSt 2010 Hosting :: Dialog Platform in SharePoint 2010 & How to Open the Edit Form Dialog for List Item

    - by mbridge
    One of the New User Interface Platforms in SharePoint 2010 is ‘The Dialog Platform’ A dialog is essentially a <div> which gets visible on demand and renders the HTML using a background overlay creating a modal dialog like user experience. We can show an existing div from within the page or a different page using a URL inside the dialogs. When we pass the URL to the dialog it looks for the Querystring parameter “IsDlg=1”. If this parameters exists than it would dynamically load the "/_layouts/styles/dlgframe.css” file. This file overrides the “s4-notdlg” class items as “display:none”, which means that all items with this class would not get displayed in Dialog Mode.  So if we go to the v4.master page we can see that this class is used by the Ribbon control to hide the ribbon when in dialog mode: How to open the Edit Form Dialog for List Item: In SharePoint 2010 The URL for opening the Edit Form of any list item looks like something like this : http://intranet.contoso.com/<SiteName>/Lists/<ListName>/EditForm.aspx?ID=1&IsDlg=1 ID is the list item row identifier and as discussed above the IsDlg is for the dialog mode. Now to open a dialog we need to use the SP.UI.ModalDialog.showModalDialog method from the ECMAScript Client Object model and pass in the url of the page, width & height of the dialog and also a callback function in case we want some code to run after the dialog is closed. <script type="text/javascript">          //Handle the DialogCallback callback               function DialogCallback(dialogResult, returnValue){               }             //Open the Dialog           function OpenEditDialog(id){             var options = { url:&quot;http://intranet.contoso.com/<SiteName>/Lists/<ListName>/EditForm.aspx?ID=&quot; + id + &quot;&amp;IsDlg=1&quot;,              width: 700,              height: 700,              dialogReturnValueCallback: DialogCallback              };             SP.UI.ModalDialog.showModalDialog(options);           } </script> The .js files for the ECMAScript Object Model (SP.js, SP.Core.js, SP.Ribbon.js, and SP.Runtime.js ) are installed in the %ProgramFiles%\Common Files\Microsoft Shared\web server extensions\14\TEMPLATE\LAYOUTS directory. Here is a good MSDN link explaining the Client Object Model Distribution and Deployment options available in SharePoint 2010 and this is the lowest costSharePoint 2010 Provider.

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  • Series On Embedded Development (Part 2) - Build-Time Optionality

    - by user12612705
    In this entry on embedded development, I'm going to discuss build-time optionality (BTO). BTO is the ability to subset your software at build-time so you only use what is needed. BTO typically pertains more to software providers rather then developers of final products. For example, software providers ship source products, frameworks or platforms which are used by developers to build other products. If you provide a source product, you probably don't have to do anything to support BTO as the developers using your source will only use the source they need to build their product. If you provide a framework, then there are some things you can do to support BTO. Say you provide a Java framework which supports audio and video. If you provide this framework in a single JAR, then developers who only want audio are forced to ship their product with the video portion of your framework even though they aren't using it. In this case, support providing the framework in separate JARs...break the framework into an audio JAR and a video JAR and let the users of your framework decide which JARs to include in their product. Sometimes this is as simple as packaging, but if, for example, the video functionality is dependent on the audio functionality, it may require coding work to cleanly separate the two. BTO can also work at install-time, and this is sometimes overlooked. Let's say your building a phone application which can use Near Field Communications (NFC) if it's available on the phone, but it doesn't require NFC to work. Typically you'd write one app for all phones (saving you time)...both those that have NFC and those that don't, and just use NFC if it's there. However, for better efficiency, you can detect at install-time if the phone supports NFC and not install the NFC portion of your app if the phone doesn't support NFC. This requires that you write the app so it can run without the optional NFC code and that you write your install app so it can detect NFC and do the right thing at install-time. Supporting install-time optionality will save persistent footprint on the phone, something your customers will appreciate, your app "neighbors" will appreciate, and that you'll appreciate when they save static footprint for you. In the next article, I'll talk about runtime optionality.

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  • Mouse wheel in VirtualPC (mostly) does not work on 64-bit Windows 7 RC

    - by JonStonecash
    I have recently upgraded my laptop from WinXP Pro (32-bit) to Windows 7 RC (64-bit). I have a number of VirtualPC 2007 images that I use for testing on various platforms and looking at beta software. I have installed the 64-bit version of VirtualPC. The images all work with the exception of the mouse wheel within the virtual machine. I have tried this out with WinXP Pro, Windows 7 RC, and Windows Server 2008 images. All are 32-bit and all exhibit the same behavior: a gentle rotation of the wheel does nothing; a quick rotation of the wheel sometimes gets a scroll and sometimes not. I regard this behavior as unusable as I tend to use the mouse wheel a lot. All of this worked just fine on WinXP. I have re-installed the Virtual machine additions on all of the machines. The Windows 7 RC virtual image was created after the upgrade to Windows 7 and the 64-bit version of VirtualPC (just to isolate the possibility that I had corrupted the images during the transition). I have googled, binged, and yahoo-ed. There are scattered mentions of this problem (dating back to VPC 2004) but no solutions. I am aware that I could start up one of these images and then use remote desktop connections to get access to that image. I, in fact, do just that for some development that I am doing; the mouse works just fine. This is acceptable in this case because I spend hours at a time in the development VM. These test environments are different in that I will bring up an image for just a short time: minutes rather than hours. Adding the rdc step is much more significant in these cases. Does anyone have any idea of what to do next?

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  • Use icacls to make a directory read-only on Windows 7

    - by Dave G
    I'm attempting to test some filesystem exceptions in a Java based application. I need to find a way to create a directory that is located under %TMP% that is set to read-only. Essentially on UNIX/POSIX platforms, I can do a chmod -w and get this effect. Under Windows 7/NTFS this is of course a different story. I'm running into multiple issues on this. My user has "administrative" right (although this may not always be the case) and as such the directory is created with an ACL including: NT AUTHORITY\SYSTEM BUILTIN\Administrators <my current user> Is there a way using icacls to essentially get this directory into a state where it is read-only PERIOD, do my test, then restore the ACL for removal? EDIT With the information provided by @Ansgar Wiechers I was able to come up with a solution. I used the following: icacls dirname /deny %username%:(WD) In the page located here I found this in the remarks section: icacls preserves the canonical order of ACE entries as: * Explicit denials * Explicit grants * Inherited denials * Inherited grants By performing the above icalcs command, I was able to set the current user's ability to write or append files (WD) to the directory to deny. Then it was a question of returning it to a state post test: icacls dirname /reset /t /c Done

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  • Laptop choice for development: MacBook Pro 17 vs Dell Studio XPS 16 vs HP Envy 15

    - by Shalan
    Hey! First things first - let me state that I am not intending to play games on this - I have narrowed down to these 3 purely based on specs and its individual brand reliability in the market. I intend to primarily use: Visual Studio 2008 Pro a lot (develop and deploy on Windows platforms) SQL Server 2005 Oracle 10g Adobe Photoshop CS4 Microsoft Expression Studio Google Sketchup I currently use a desktop PC (Core2Duo 2.66Ghz with 3GB DDRII memory) running Vista Business 32-bit - and I have to admit that, especially for Visual Studio, its quite sluggish to a point where it affects productivity. Furthermore, I intend to only use the notebook on a table - with a cooled surface, like granite :) - so I would appreciate people's input with regard to heat issues. Im aware that the Dell's primary exhaust gets blocked by the lid when open, but some reviews don't seem to place extraordinary emphasis on heat issues resulting from this. My options for the Dell/Alienware: Core i7 720QM 4GB DDRIII memory ATI mobility 3670 (512) 128GB Solid State Drive 16-inch Full HD RGB-LED LCD display (1080p) 3-year next-business-day support My configuration for the Apple MBP: Core2Duo 2.8Ghz (Im assuming the T9600) 4GB DDRIII memory 128GB Solid State Drive standard 1 year support The one advantage I think of with the MBP is that I can have the addition of OSX (though Im unsure what I would use it for, but purely to play around with a much-boasted-about OS) What are your thoughts on this, especially regarding build-quality, heat, performance and battery-life? Much thanks! ~shalan

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  • Python easy_install confused on Mac OS X

    - by slf
    environment info: $ echo $PATH /opt/local/bin:/opt/local/sbin:/sw/bin:/sw/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin:/usr/X11R6/bin:/opt/local/bin:/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:~/.utility_scripts $ which easy_install /usr/bin/easy_install specifically, let's try the simplejson module (I know it's the same thing as import json in 2.6, but that isn't the point) $ sudo easy_install simplejson Searching for simplejson Reading http://pypi.python.org/simple/simplejson/ Reading http://undefined.org/python/#simplejson Best match: simplejson 2.1.0 Downloading http://pypi.python.org/packages/source/s/simplejson/simplejson-2.1.0.tar.gz#md5=3ea565fd1216462162c6929b264cf365 Processing simplejson-2.1.0.tar.gz Running simplejson-2.1.0/setup.py -q bdist_egg --dist-dir /tmp/easy_install-Ojv_yS/simplejson-2.1.0/egg-dist-tmp-AypFWa The required version of setuptools (>=0.6c11) is not available, and can't be installed while this script is running. Please install a more recent version first, using 'easy_install -U setuptools'. (Currently using setuptools 0.6c9 (/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python)) error: Setup script exited with 2 ok, so I'll update setuptools... $ sudo easy_install -U setuptools Searching for setuptools Reading http://pypi.python.org/simple/setuptools/ Best match: setuptools 0.6c11 Processing setuptools-0.6c11-py2.6.egg setuptools 0.6c11 is already the active version in easy-install.pth Installing easy_install script to /usr/local/bin Installing easy_install-2.6 script to /usr/local/bin Using /Library/Python/2.6/site-packages/setuptools-0.6c11-py2.6.egg Processing dependencies for setuptools Finished processing dependencies for setuptools I'm not going to speculate, but this could have been caused by any number of environment changes like the Leopard - Snow Leopard upgrade, MacPorts or Fink updates, or multiple Google App Engine updates.

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  • PXE booting LACP hosts on Force10 S50N with FTOS

    - by lolwutreddit
    Hardware: S50N Firmware: FTOS 8.4.2.6 Problem: We're trying to PXE boot some servers that are connected via port-channel interfaces with LACP. Current Work-around: we PXE boot a server with a single interface (eth0), and then use a Perl script to turn up the port-channel interfaces after the server is built. Details: Is anyone doing anything similar on Force10 S50 switches with FTOS? If not, is anyone doing this on another S series, or larger chassis-based Force10? I'm wondering if Native VLAN will solve this, since ports in a port-channel cannot explicitly have a VLAN set, and they don't seem to use the tagged or untagged VLAN that the port channel is in. I will confirm this next (I think it's the only thing I haven't tried) Juniper Example: http://broken.net/openindiana/how-to-pxe-boot-systems-on-lacp-using-juniper-switches/ Cisco: there are plenty of documented ways to solve this issue on IOS and Nexus Update/Edit: since there seems to be no way to use interface or port-channel mode commands to get the individual interfaces to show up in spanning-tree (rtsp in this case), the ports should never go into a forwarding state. I'm not going to mess with it anymore unless a) someone that has experience passes it on, or b) Force10 comes up with a solution for this (I'm guessing it will only be introduced on other S platforms (S55, S60), since the S50 seems to be near EOL). I'm basing that on the fact that the Open Automation type features are only being supported on the newer switches.

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  • Puppet and Vim fighting over Ruby version

    - by devians
    I have installed puppet from the .dmg from puppetlabs. If I remove ruby 1.9.3, puppet works, but other things like my vim install (dependant plugins) do not. According to http://docs.puppetlabs.com/guides/platforms.html#ruby-versions 1.9.3 is supported. So whats going wrong with puppet? % uname -a Darwin Kusanagi.local 11.4.2 Darwin Kernel Version 11.4.2: Thu Aug 23 16:25:48 PDT 2012; root:xnu-1699.32.7~1/RELEASE_X86_64 x86_64 % which ruby /usr/local/bin/ruby % ruby --version ruby 1.9.3p327 (2012-11-10 revision 37606) [x86_64-darwin11.4.2] % /usr/bin/ruby --version ruby 1.8.7 (2012-02-08 patchlevel 358) [universal-darwin11.0] % brew info ruby 1 ? ruby: stable 1.9.3-p327, HEAD http://www.ruby-lang.org/en/ Depends on: pkg-config, readline, gdbm, libyaml /usr/local/Cellar/ruby/1.9.3-p327 (796 files, 17M) * https://github.com/mxcl/homebrew/commits/master/Library/Formula/ruby.rb ==> Options --with-tcltk Install with Tcl/Tk support --with-suffix Suffix commands with "19" --universal Build a universal binary --with-doc Install documentation ==> Caveats NOTE: By default, gem installed binaries will be placed into: /usr/local/Cellar/ruby/1.9.3-p327/bin You may want to add this to your PATH. % puppet /usr/local/Cellar/ruby/1.9.3-p327/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file -- puppet/util/command_line (LoadError) from /usr/local/Cellar/ruby/1.9.3-p327/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require' from /usr/bin/puppet:3:in `<main>'

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  • Limiting interface bandwidth with tc under Linux

    - by Matt
    I have a linux router which has a 10GBe interface on the outside and bonded Gigabit ethernet interfaces on the inside. We have currently budget for 2GBit/s. If we exceed that rate by more than 5% average for a month then we'll be charged for the whole 10Gbit/s capacity. Quite a step up in dollar terms. So, I want to limit this to 2GBit/s on 10GBe interface. TBF filter might be ideal, but this comment is of concern. On all platforms except for Alpha, it is able to shape up to 1mbit/s of normal traffic with ideal minimal burstiness, sending out data exactly at the configured rates. Should I be using TBF or some other filter to apply this rate to the interface and how would I do it. I don't understand the example given here: Traffic Control HOWTO In particular "Example 9. Creating a 256kbit/s TBF" tc qdisc add dev eth0 handle 1:0 root dsmark indices 1 default_index 0 tc qdisc add dev eth0 handle 2:0 parent 1:0 tbf burst 20480 limit 20480 mtu 1514 rate 32000bps How is the 256K bit/s rate calculated? In this example, 32000bps = 32k bytes per second. Since tc uses bps = bytes per second. I guess burst and limit come into play but how would you go about choosing sensible numbers to reach the desired rate? This is not a mistake. I tested this and it gave a rate close to 256K but not exactly that.

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  • Installing OEM Windows Server 2008 under KVM

    - by rancidfishbreath
    Issue I have an HP server that came with an OEM copy of Windows Server 2008. I have installed CentOS 5.4 on the hardware and am trying to install Windows Server 2008 as a KVM guest. When I attempt to install Windows Server 2008 it complains that I am trying to install on unsupported hardware. This issue is caused because the hardware SMBIOS information is not being passed to the KVM guest. Background Before I go any further I want to state that what I am trying to do is within the license. HP offers a supported solution for VMWare but does not have an official solution for KVM. After much research the platform I am going to use is CentOS and KVM so please do not suggest other platforms. I emailed the KVM developers mailing list and was told that this is possible and was given the advice that: "You can dump SLIC table of your host bios and provide it to guest bios using -acpitable parameter." I used dmidecode and got the parameters that need to be passed, but I do not know where to pass the parameters into. Update Looks like CentOS 5.4 uses virt-install instead of qemu. Qemu is in the package manager and I was able to install it after uninstalling qemu-img (they conflict and qemu contains the packages in qemu-img). So now I know how to pass the acpitable parameters, but I am having trouble mapping what came out of dmidecode into -acpitable.

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  • Advice needed: warm backup solution for SQL Server 2008 Express?

    - by Mikey Cee
    What are my options for achieving a warm backup server for a SQL Server Express instance running a single database? Sitting beside my production SQL Server 2008 Express box I have a second physical box currently doing nothing. I want to use this second box as a warm backup server by somehow replicating my production database in near real time (a little bit of data loss is acceptable). The database is very small and resources are utilized very lightly. In the case that the production server dies, I would manually reconfigure my application to point to the backup server instead. Although Express doesn't support log shipping natively, I am thinking that I could manually script a poor man's version of it, where I use batch files to take the logs and copy them across the network and apply them to the second server at 5 minute intervals. Does anyone have any advice on whether this is technically achievable, or if there is a better way to do what I am trying to do? Note that I want to avoid having to pay for the full version of SQL Server and configure mirroring as I think it is an overkill for this application. I understand that other DB platforms may present suitable options (eg. a MySQL Cluster), but for the purposes of this discussion, let's assume we have to stick to SQL Server.

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  • How to change controller numbering/enumeration in Solaris 10?

    - by Jim
    After moving a Solaris 10 server to a new machine, the rpool disk is now c1t0d0. We have some third party applications hard coded for c0t0d0. How can I change the controller enumeration on this machine? There is no longer a c0. I've tried rebuilding the /etc/path_to_inst, but the instance numbers don't seem to match up with the controller numbers. Also, it's not clear if i86pc platforms use this file. I've tried devfsadm -C to clear the dangling links, but I'm not sure how to cause devfsadm to start numbering from 0 again (or force certain devices in the tree to a specific controller number). Next I am going to try to create the symlinks manually in /dev/dsk and rdsk to point to the correct /devices. I feel like I am going way off path here. Any suggestions? Thanks Update: This is on virtual ESXi hardware with an additional pass-through HBA. There is no controller 0 on the machine, that is for sure. devfsadm -C cleans up all the c0 device symlinks but keeps the already linked controllers at their current ids.

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  • Thunderbird alerts when expected email does not arrive

    - by user871199
    I am on Ubuntu 12.04 using Thunderbird as email client. Both are up to date in terms of updates. I have bunch of nightly jobs that do the work and send a status mail. It gets tedious if you keep getting same/similar mails every day so I ended up writing a mail filter rule which causes emails to end up in their respective folders automatically. If things are going ok, I really don't need to read emails. Failure emails are sent to different alias - if the job runs. We recently discovered that one of the job had not run for few days as someone accidentally disabled it. In order to avoid such problems in future, I would like to setup thunderbird in such a way that if I don't get email from given address within given duration, it should alert me. My dream solution is to set up frequency - some jobs do run every 4 hours. Is this possible? Can I setup Thunderbird (preferred) or other email client for reminding me when expected email does not show up. Based on comments and answer I received, here are the reasons why I would like to use Thunderbird. We are already using Thunderbird. It has calender support via plugin, so I suppose someone is already watching time to remind us about the event. May be this another type of event. Additional job is one more failure point, may complicate life if it has to monitor multiple hosts. Additional tools - same thing, one more failure point. Thunderbird can be run across all the platforms we are using - Windows and Ubuntu. It sort of becomes platform independent solution.

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  • Linking to a chat room via XMPP: URI

    - by Coderer
    I found out how to link directly to a chat room on a Jabber conference server -- it took a bit of digging, and I wound up actually looking at the spec before I was sure I was doing it right. I confirmed here, so I'm pretty sure I've got it. The results, though, are puzzling. If I click a link of the style xmpp:[email protected] I get a new chat session with user "dude" at example.com, as expected. If I tack on a nonsense query (xmpp:[email protected]?foobar), it's ignored, which is what the spec says should happen. However, if I use xmpp:[email protected]?join, as in the link above, nothing happens. I dug a little deeper, and found out that on my (Linux) system, xmpp URIs are handled via purple-url-handler, so I dropped to a terminal and ran it manually. The result was that any xmpp URI ran fine except one that includes a ?join query. The ?join query results in a dbus crash, pointing specifically to line 2356 of dbus-message.c -- a little Googling suggests this probably is dbus's less-than-elegant way of telling me that somebody is using dbus incorrectly. Am I crafting my link correctly? Is this an OS or maybe application issue? Does this work on other platforms / browsers / etc? More importantly, is there any easy way to fix it?

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  • Value of Itanium over x86_64 for Oracle Deployment

    - by Antitribu
    We are looking at a new environment to run our Oracle Database running on SUSE (potentially migrating to RedHat). Our database is approximately 100GB and performs adequately on our current hardware (x86_64) with approximately 6GB of ram allocated to it. We are growing quickly however and will require more performance shortly. Given the cost of Oracle licenses we would like to maximize the value from each license by choosing the most appropriate CPU to run the software on. The questions are: Are there substantial benefits to looking at Itanium hardware, are there any drawbacks? Is there a point where Itanium starts to scale out better? What are the long term support options for Itanium? Given the dominance of x86 would it be safer long term to stick with x86? On average what would be the performance benefit of implementing an Oracle database on Itanium over x86_64? Is this an issue at all or will other factors (IO/RAM) cap out first? If anyone can point me towards some solid documentation on comparisons between the two platforms that provides good case analysis of when to choose which I'm more than happy to accept that as an answer.

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  • vmdk Recovery after migration from 3.5 to 4 and fallback tentative.

    - by olgirard
    Hy, I've tryed to migrate some VM from my 3.5i environment to a brand new vSphere 4.0 U1. The two platforms are running simultaneously, sharing the same SAN. I Migrate my VM by stopping it, unregistering in vcenter (esx ver. 3.5, i call it esx3), register in vSphere (esx ver. 4, i call it esx4), and migrate upgrade virtual hardware before powering it up (First mistake). vMotion was enabled on esx4, seem to be a second mistake. After a day or so, i encountred problems joigning the esx server (esx4) and decided to unregister my server for esx4 and fallback to esx3. esx3 refused to boot, i supposed this was due to virtual hardware in Version 7 so i recreated a new VM pointing to the vmdk of the old VM. Everithing seemed fine until i log into the server and discover that i was running on the original disk ith every snapshots ignored even those created on esx3. I tried to reboot VM on esx4 but VM doesn't power up because "The parent virtual disk has been modified since the child was created". I've got a copy of a later state of the drive but generated between two snapshots (ovf generated with canverter standalone) as a backup. Do i have a chance to recover at least some files on the virtual drive or (as i tink) all is played, i've done enought mistakes for this time. Thanks for your help.

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  • Backup solution, or, how Duplicati duped me

    - by blarghmaster
    TL/DR version: Mono + Duplicati.commandline.exe restore etc. etc. spits this out for several files regardless of what I try. I am able to list sets, list files in said sets, even do a verify, but each time i do a restore of any kind, i get errors to the effect of : Failed to restore file: "snapshot/blahblah/2005-11-07.tar.gz", Error message: The partial file record for snapshot/blahblah/2005-11-07.tar.gz does not match the file Any advice here, or an idea of where to look for a better solution? FULL STORY: Ive recently put together an nice clean, friendly backup solution for several servers, predominantly Linux, but occasionally a windows box is added too. The solution as is meets all my requirements and does it well... save 1: cross-compatibility The solution is based on a combination of several elements, but eventually comes done to using Duplicity and Duplicati for the actual storage of files. The entire solution was ready to go before i realized that Duplicati, does not, in fact allow me to restore my files to a Linux box, regardless of what the commandline under Mono might tell you. It just spits out errors on random zip and image files, for apparently no good reason as i have tried several options to get it to restore, and several versions of Mono including installing it pretty much lib-for-lib. There is no effective log file for the reasons for these errors, and even the "--debug-output=true" flag does nothing. I am able to list sets, list files in said sets, even do a verify, but each time i do a restore of any kind, i get errors to the effect of : Failed to restore file: "snapshot/blahblah/2005-11-07.tar.gz", Error message: The partial file record for snapshot/blahblah/2005-11-07.tar.gz does not match the file Now i could most likely use the friendly instructions on Duplicati's site and script a bash equivalent of the restore, but that's not exactly ideal. Any advice on this? or possibly an alternative solution that presents the same benefits of Duplicati/Duplicity but that actually works across platforms?

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