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  • Setting up nHibernate with an Oracle database and Visual Studio 2010

    - by Geoff
    I'm creating a .ASPNET project and I would like to setup nHibernate as my ORM tool. I will be using an existing oracle database and Visual Studio 2010. ORM tools are very new to me and really could use any advice to better understand the tool and the process required to implement them. I've been following an article at http://nhforge.org/wikis/howtonh/your-first-nhibernate-based-application.aspx to learn about it and am stuck where they say to create a local database as mine only give me the option to create a SQL server database (perhaps this a new for visual studio 2010?). Is the purpose of this database just to cache results from the live database? Thanks for your help! Geoff

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  • How to verify an XML digital signature in Cocoa?

    - by Geoff Smith
    I have a C# application that uses XML digital signatures to sign license files. I've used the standard Microsoft approach described here. I'm porting the application to the MAC and need to verify the signature. My general question is how best to do this? This is what I've done: I've used macport to install Aleksey's xmlsec1 library. Used the Chilkat library to convert my XML public key to a PEM file Chilkat.PublicKey pubKey = new Chilkat.PublicKey(); pubKey.LoadXml(publicKeyXml); pubKey.SaveOpenSslPemFile("publicKey.pem"); Compiled and ran the alekseys sample program. See (http://www.aleksey.com/xmlsec/api/xmlsec-verify-with-key.html) to verify an XML dsig. Result: my license files fail to validate. The call to xmlSecDSigCtxVerify fails with status=unknown. Now for my specific question: What can I do next? Geoff

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  • So long and thanks for the fish&hellip;

    - by Geoff N. Hiten
    This marks my last post as a SQLPASS Board member.  I learned a lot during my year of service and I thank everyone involved for this opportunity.  I would especially like to thank the Chapter leaders and Regional Mentors for Virtual Chapters who (mostly) patiently taught me about Virtual Chapters.   I hope the changes I put in place will help strengthen and grow VCs and PASS going forward.  I would also like to thank every one who encouraged me to reach beyond my comfort zone and accept a leadership position within the PASS organization.  My overall principle was to be a good steward of the PASS community.  Could I have done more?  Always. Did I do enough?  I hope so.  But PASS is a volunteer organization and my time, like yours, is limited.  I have other obligations in life that supersede PASS.  Now I have more time for some of those.  I won’t be going away or leaving the SQL Community.  I will still contribute to the community and support PASS, just in a different role.  Time to let somebody else enjoy the hot seat for a while. Finally, everyone who voted (not just for me) deserves a thanks.  More voters and more engaged voters, strong candidates, and a vigorous debate were all I wanted out of declaring as a candidate last year. This year the SQL community got exactly that. Thank you..

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  • A Rose by Any Other Name..

    - by Geoff N. Hiten
    It is always a good start when you can steal a title line from one of the best writers in the English language.  Let’s hope I can make the rest of this post live up to the opening.  One recurring problem with SQL server is moving databases to new servers.  Client applications use a variety of ways to resolve SQL Server names, some of which are not changed easily <cough SharePoint /cough>.  If you happen to be using default instances on both the source and target SQL Server, then the solution is pretty simple.  You create (or bug the network admin until she creates) two DNS “A” records. One points the old name to the new IP address.  The other creates a new alias for the old server, since the original system name is now redirected.  Note this will redirect ALL traffic from the old server to the new server, including RDP and file share connection attempts.    Figure 1 – Microsoft DNS MMC Snap-In   Figure 2 – DNS New Host Dialog Box Both records are necessary so you can still access the old server via an alternate name. Server Role IP Address Name Alias Source 10.97.230.60 SQL01 SQL01_Old Target 10.97.230.80 SQL02 SQL01 Table 1 – Alias List If you or somebody set up connections via IP address, you deserve to have to go to each app and fix it by hand.  That is the only way to fix that particular foul-up. If have to deal with Named Instances either as a source or a target, then it gets more complicated.  The standard fix is to use the SQL Server Configuration Manager (or one of its earlier incarnations) to create a SQL client alias to redirect the connection.  This can be a pain installing and configuring the app on multiple client servers.  The good news is that SQL Server Configuration Manager AND all of its earlier versions simply write a few registry keys.  Extracting the keys into a .reg file makes centralized automated deployment a snap. If the client is a 32-bit system, you have to extract the native key.  If it is a 64-bit, you have to extract the native key and the WoW (32 bit on 64 bit host) key. First, pick a development system to create the actual registry key.  If you do this repeatedly, you can simply edit an existing registry file.  Create the entry using the SQL Configuration Manager.  You must use a 64-bit system to create the WoW key.  The following example redirects from a named instance “SQL01\SQLUtiluty” to a default instance on “SQL02”.   Figure 3 – SQL Server Configuration Manager - Native Figure 3 shows the native key listing. Figure 4 – SQL Server Configuration Manager – WoW If you think you don’t need the WoW key because your app is 64 it, think again.  SQL Server Management Server is a 32-bit app, as are most SQL test utilities.  Always create both keys for 64-bit target systems. Now that the keys exist, we can extract them into a .reg file. Fire up REGEDIT and browse to the following location:  HKLM\Software\Microsoft\MSSQLServer\Client\ConnectTo.  You can also search the registry for the string value of one of the server names (old or new). Right click on the “ConnectTo” label and choose “Export”.  Save with an appropriate name and location.  The resulting file should look something like this: Figure 5 – SQL01_Alias.reg Repeat the process with the location: HKLM\Software\Wow6432Node\Microsoft\MSSQLServer\Client\ConnectTo Note that if you have multiple alias entries, ALL of the entries will be exported.  In that case, you can edit the file and remove the extra aliases. You can edit the files together into a single file.  Just leave a blank line between new keys like this: Figure 6 – SQL01_Alias_All.reg Of course if you have an automatic way to deploy, it makes sense to have an automatic way to Un-deploy.  To delete a registry key, simply edit the .reg file and replace the target with a “-“ sign like so. Figure 7 – SQL01_Alias_UNDO.reg Now we have the ability to move any database to any server without having to install or change any applications on any client server.  The whole process should be transparent to the applications, which makes planning and coordinating database moves a far simpler task.

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  • Clustering for Mere Mortals (Pt2)

    - by Geoff N. Hiten
    Planning. I could stop there and let that be the entirety post #2 in this series.  Planning is the single most important element in building a cluster and the Laptop Demo Cluster is no exception.  One of the more awkward parts of actually creating a cluster is coordinating information between Windows Clustering and SQL Clustering.  The dialog boxes show up hours apart, but still have to have matching and consistent information. Excel seems to be a good tool for tracking these settings.  My workbook has four pages: Systems, Storage, Network, and Service Accounts.  The systems page looks like this:   Name Role Software Location East Physical Cluster Node 1 Windows Server 2008 R2 Enterprise Laptop VM West Physical Cluster Node 2 Windows Server 2008 R2 Enterprise Laptop VM North Physical Cluster Node 3 (Future Reserved) Windows Server 2008 R2 Enterprise Laptop VM MicroCluster Cluster Management Interface N/A Laptop VM SQL01 High-Performance High-Security Instance SQL Server 2008 Enterprise Edition x64 SP1 Laptop VM SQL02 High-Performance Standard-Security Instance SQL Server 2008 Enterprise Edition x64 SP1 Laptop VM SQL03 Standard-Performance High-Security Instance SQL Server 2008 Enterprise Edition x64 SP1 Laptop VM Note that everything that has a computer name is listed here, whether physical or virtual. Storage looks like this: Storage Name Instance Purpose Volume Path Size (GB) LUN ID Speed Quorum MicroCluster Cluster Quorum Quorum Q: 2     SQL01Anchor SQL01 Instance Anchor SQL01Anchor L: 2     SQL02Anchor SQL02 Instance Anchor SQL02Anchor M: 2     SQL01Data1 SQL01 SQL Data SQL01Data1 L:\MountPoints\SQL01Data1 2     SQL02Data1 SQL02 SQL Data SQL02Data1 M:\MountPoints\SQL02Data1       Starting at the left is the name used in the storage array.  It is important to rename resources at each level, whether it is Storage, LUN, Volume, or disk folder.  Otherwise, troubleshooting things gets complex and difficult.  You want to be able to glance at a resource at any level and see where it comes from and what it is connected to. Networking is the same way:   System Network VLAN  IP Subnet Mask Gateway DNS1 DNS2 East Public Cluster1 10.97.230.x(DHCP) 255.255.255.0 10.97.230.1 10.97.230.1 10.97.230.1 East Heartbeat Cluster2   255.255.255.0       West Public Cluster1 10.97.230.x(DHCP) 255.255.255.0 10.97.230.1 10.97.230.1 10.97.230.1 West Heartbeat Cluster2   255.255.255.0       North Public Cluster1 10.97.230.x(DHCP) 255.255.255.0 10.97.230.1 10.97.230.1 10.97.230.1 North Heartbeat Cluster2   255.255.255.0       SQL01 Public Cluster1 10.97.230.x(DHCP) 255.255.255.0       SQL02 Public Cluster1 10.97.230.x(DHCP) 255.255.255.0       One hallmark of a poorly planned and implemented cluster is a bunch of "Local Network Connection #n" entries in the network settings page.  That lets me know that somebody didn't care about the long-term supportabaility of the cluster.  This can be critically important with Hyper-V Clusters and their high NIC counts.  Final page:   Instance Service Name Account Password Domain OU SQL01 SQL Server SVCSQL01 Baseline22 MicroAD Service Accounts SQL01 SQL Agent SVCSQL01 Baseline22 MicroAD Service Accounts SQL02 SQL Server SVC_SQL02 Baseline22 MicroAD Service Accounts SQL02 SQL Agent SVC_SQL02 Baseline22 MicroAD Service Accounts SQL03 (Future) SQL Server SVC_SQL03 Baseline22 MicroAD Service Accounts SQL03 (Future) SQL Agent SVC_SQL03 Baseline22 MicroAD Service Accounts             Installation Account           administrator            Yes.  I write down the account information.  I secure the file via NTFS, but I don't want to fumble around looking for passwords when it comes time to rebuild a node. Always fill out the workbook COMPLETELY before installing anything.  The whole point is to have everything you need at your fingertips before you begin.  The install experience is so much better and more productive with this information in place.

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  • SQLSaturday 33 Observations

    - by Geoff N. Hiten
    Along with a lot of my colleagues, I went to SQLSaturday #33 in Charlotte this last weekend.  Overall a really good event, especially for a first-time organizer.  There is some controversy over certain events where my name got mentioned so I thought I would clear the air. Before I get to the core controversy, let's get the details out of the way.  The Microsoft Offices in Charlotte were an excellent venue for this event.  I really appreciated the Microsoft employees that helped out by letting us in and out of normally secure areas.  This is definitely above and beyond on their part. Thanks to the organizers (especially Greg and Peter) for the great hospitality they showed to the speakers.  Now for the specifics.  Like most events of this type, there was a raffle at the end for some cool swag.  As a speaker I got raffle tickets just like any other attendee.  The raffle was clearly promoted as "must be present to win".  The problem is that for various reasons, the raffle kicked off immediately after the last speaker finished in the largest room.  That room was across the parking lot from all the other rooms for the event.  I happened to have one of the last sessions of the day, and not in the main room.  I also ran long since the audience was very interactive and there were a lot of follow-up questions.  (BTW, thanks to everyone who came and stayed for my session.  Sorry it cost you the chance to win too.).  My name was drawn for an very nice piece of swag (iPod Touch if you insist).  Since I wasn't there, I didn't win. Several folks mentioned I was still speaking and was "here" (as in at the event) just not "here in the room". Yes, I was mad when I found out about it. I think that was handled poorly.  I personally lost out as did my audience (dunno if anyone specific lost anything, but it is the idea that counts).  It was a mistake. Mistakes happen.  Nobody acted maliciously.  Heck, the guys running the event who made the decision are my friends and remain so.  I got over my mad.  We talked about this privately and we are all OK with what happened.  I am not going to let a gadget get in the way of a couple of good friendships. I think the mistake was mostly due to a lack of unity between the venue buildings   Pam Shaw had a similar challenge in Tampa a few weeks ago, including a speaker who ran long on the last session (not me that time).  She had a couple of teenage volunteers to act as gofers/runners.  They counted heads in sessions, pointed people to last-minute room and session changes, and generally helped connect the organizers to what was actually happening.  Note that this was not Pam's first SQLSaturday event.  She knew but the knowledge had not been institutionalized.  We (The SQL community in general and SQLSaturday organizers in particular) now know how essential gofers are to success. I know I spent most of this post focusing on the controversy, but I wanted to clear everything up.  I don't want to let a minor mistake, made in good faith, overshadow what was a tremendously good event for the community. As for the iPod Touch, someone in the SQL community is enjoying it, so it is not a total loss.  And if losing out on it is the price I pay so we can learn this, then that is what a community leader does.  Consider it a gift.  Besides, I really wanted a Zune 120 :)

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  • Clustering for Mere Mortals (Pt 3)

    - by Geoff N. Hiten
    The Controller Now we get to the meat of the matter.  You want a virtual cluster, the first thing you have to do is create your own portable domain.  Start with a plain vanilla install of Windows 2003 R2 Standard on a semi-default VM. (1 GB RAM, 2 cores, 2 NICs, 128GB dynamically expanding VHD file).  I chose this because it had the smallest disk and memory footprint of any current supported Microsoft Server product.  I created the VM with a single dynamically expanding VHD, one fixed 16 GB VHD, and two NICs.  One NIC is connected to the outside world and the other one is part of an internal-only network.  The first NIC is set up as a DHCP client.  We will get to the other one later. I actually tried this with Windows 2008 R2, but it failed miserably.  Not sure whether it was 2008 R2 or the fact I tried to use cloned VMs in the cluster.  Clustering is one place where NewSID would really come in handy.  Too bad Microsoft bought and buried it. Load and Patch the OS (hence the need for the outside connection).This is a good time to go get dinner.  Maybe a movie too.  There are close to a hundred patches that need to be downloaded and applied.  Avoiding that mess was why I put so much time into trying to get the 2008 R2 version working.  Maybe next time.  Don’t forget to add the extensions for VMLite (or whatever virtualization product you prefer). Set a fixed IP address on the internal-only NIC.  Do not give it a gateway.  Put the same IP address for the NIC and for the DNS Server.  This IP should be in a range that is never available on your public network.  You will need all the addresses in the range available.  See the previous post for the exact settings I used. I chose 10.97.230.1 as the server.  The rest of the 10.97.230 range is what I will use later.  For the curious, those numbers are based on elements of my home address.  Not truly random, but good enough for this project. Do not bridge the network connections.  I never allowed the cluster nodes direct access to any public network. Format the fixed VHD and leave it alone for now. Promote the VM to a Domain Controller.  If you have never done this, don’t worry.  The only meaningful decision is what to call the new domain.  I prefer a bogus name that does not correspond to a real Top-Level Domain (TLD).  .com, .biz., .net, .org  are all TLDs that we know and love.  I chose .test as the TLD since it is descriptive AND it does not exist in the real world.  The domain is called MicroAD.  This gives me MicroAD.Test as my domain. During the promotion process, you will be prompted to install DNS as part of the Domain creation process.  You want to accept this option.  The installer will automatically assign this DNS server as the authoritative owner of the MicroAD.test DNS domain (not to be confused with the MicroAD.test Active Directory domain.) For the rest of the DCPROMO process, just accept the defaults. Now let’s make our IP address management easy.  Add the DHCP Role to the server.  Add the server (10.97.230.1 in this case) as the default gateway to assign to DHCP clients.  Here is where you have to be VERY careful and bind it ONLY to the Internal NIC.  Trust me, your network admin will NOT like an extra DHCP server “helping” out on her network.  Go ahead and create a range of 10-20 IP Addresses in your scope.  You might find other uses for a pocket domain controller <cough> Mirroring </cough> than just for building a cluster.  And Clustering in SQL 2008 and Windows 2008 R2 fully supports DHCP addresses. Now we have three of the five key roles ready.  Two more to go. Next comes file sharing.  Since your cluster node VMs will not have access to any outside, you have to have some way to get files into these VMs.  I simply go to the root of C: and create a “Shared” folder.  I then share it out and grant full control to “Everyone” to both the share and to the underlying NTFS folder.   This will be immensely useful for Service Packs, demo databases, and any other software that isn’t packaged as an ISO that we can mount to the VM. Finally we need to create a block-level multi-connect storage device.  The kind folks at Starwinds Software (http://www.starwindsoftware.com/) graciously gave me a non-expiring demo license for expressly this purpose.  Their iSCSI SAN software lets you create an iSCSI target from nearly any storage medium.  Refreshingly, their product does exactly what they say it does.  Thanks. Remember that 16 GB VHD file?  That is where we are going to carve into our LUNs.  I created an iSCSI folder off the root, just so I can keep everything organized.  I then carved 5 ea. 2 GB iSCSI targets from that folder.  I chose a fixed VHD for performance.  I tried this earlier with a dynamically expanding VHD, but too many layers of abstraction and sparseness combined to make it unusable even for a demo.  Stick with a fixed VHD so there is a one-to-one mapping between abstract and physical storage.  If you read the previous post, you know what I named these iSCSI LUNs and why.  Yes, I do have some left over space.  Always leave yourself room for future growth or options. This gets us up to where we can actually build the nodes and install SQL.  As with most clusters, the real work happens long before the individual nodes get installed and configured.  At least it does if you want the cluster to be a true high-availability platform.

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  • Clustering for Mere Mortals (Pt3)

    - by Geoff N. Hiten
    The Controller Now we get to the meat of the matter.  You want a virtual cluster, the first thing you have to do is create your own portable domain.  IStart with a plain vanilla install of Windows 2003 R2 Standard on a semi-default VM. (1 GB RAM, 2 cores, 2 NICs, 128GB dynamically expanding VHD file).  I chose this because it had the smallest disk and memory footprint of any current supported Microsoft Server product.  I created the VM with a single dynamically expanding VHD, one fixed 16 GB VHD, and two NICs.  One NIC is connected to the outside world and the other one is part of an internal-only network.  The first NIC is set up as a DHCP client.  We will get to the other one later. I actually tried this with Windows 2008 R2, but it failed miserably.  Not sure whether it was 2008 R2 or the fact I tried to use cloned VMs in the cluster.  Clustering is one place where NewSID would really come in handy.  Too bad Microsoft bought and buried it. Load and Patch the OS (hence the need for the outside connection).This is a good time to go get dinner.  Maybe a movie too.  There are close to a hundred patches that need to be downloaded and applied.  Avoiding that mess was why I put so much time into trying to get the 2008 R2 version working.  Maybe next time.  Don’t forget to add the extensions for VMLite (or whatever virtualization product you prefer). Set a fixed IP address on the internal-only NIC.  Do not give it a gateway.  Put the same IP address for the NIC and for the DNS Server.  This IP should be in a range that is never available on your public network.  You will need all the addresses in the range available.  See the previous post for the exact settings I used. I chose 10.97.230.1 as the server.  The rest of the 10.97.230 range is what I will use later.  For the curious, those numbers are based on elements of my home address.  Not truly random, but good enough for this project. Do not bridge the network connections.  I never allowed the cluster nodes direct access to any public network. Format the fixed VHD and leave it alone for now. Promote the VM to a Domain Controller.  If you have never done this, don’t worry.  The only meaningful decision is what to call the new domain.  I prefer a bogus name that does not correspond to a real Top-Level Domain (TLD).  .com, .biz., .net, .org  are all TLDs that we know and love.  I chose .test as the TLD since it is descriptive AND it does not exist in the real world.  The domain is called MicroAD.  This gives me MicroAD.Test as my domain. During the promotion process, you will be prompted to install DNS as part of the Domain creation process.  You want to accept this option.  The installer will automatically assign this DNS server as the authoritative owner of the MicroAD.test DNS domain (not to be confused with the MicroAD.test Active Directory domain.) For the rest of the DCPROMO process, just accept the defaults. Now let’s make our IP address management easy.  Add the DHCP Role to the server.  Add the server (10.97.230.1 in this case) as the default gateway to assign to DHCP clients.  Here is where you have to be VERY careful and bind it ONLY to the Internal NIC.  Trust me, your network admin will NOT like an extra DHCP server “helping” out on her network.  Go ahead and create a range of 10-20 IP Addresses in your scope.  You might find other uses for a pocket domain controller <cough> Mirroring </cough> than just for building a cluster.  And Clustering in SQL 2008 and Windows 2008 R2 fully supports DHCP addresses. Now we have three of the five key roles ready.  Two more to go. Next comes file sharing.  Since your cluster node VMs will not have access to any outside, you have to have some way to get files into these VMs.  I simply go to the root of C: and create a “Shared” folder.  I then share it out and grant full control to “Everyone” to both the share and to the underlying NTFS folder.   This will be immensely useful for Service Packs, demo databases, and any other software that isn’t packaged as an ISO that we can mount to the VM. Finally we need to create a block-level multi-connect storage device.  The kind folks at Starwinds Software (http://www.starwindsoftware.com/) graciously gave me a non-expiring demo license for expressly this purpose.  Their iSCSI SAN software lets you create an iSCSI target from nearly any storage medium.  Refreshingly, their product does exactly what they say it does.  Thanks. Remember that 16 GB VHD file?  That is where we are going to carve into our LUNs.  I created an iSCSI folder off the root, just so I can keep everything organized.  I then carved 5 ea. 2 GB iSCSI targets from that folder.  I chose a fixed VHD for performance.  I tried this earlier with a dynamically expanding VHD, but too many layers of abstraction and sparseness combined to make it unusable even for a demo.  Stick with a fixed VHD so there is a one-to-one mapping between abstract and physical storage.  If you read the previous post, you know what I named these iSCSI LUNs and why.  Yes, I do have some left over space.  Always leave yourself room for future growth or options. This gets us up to where we can actually build the nodes and install SQL.  As with most clusters, the real work happens long before the individual nodes get installed and configured.  At least it does if you want the cluster to be a true high-availability platform.

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  • MacGyver Moments

    - by Geoff N. Hiten
    Denny Cherry tagged me to write about my best MacGyver Moment.  Usually I ignore blogosphere fluff and just use this space to write what I think is important.  However, #MVP10 just ended and I have a stronger sense of community.  Besides, where else would I mention my second best Macgyver moment was making a BIOS jumper out of a soda can.  Aluminum is conductive and I didn't have any real jumpers lying around. My best moment is probably my entire home computer network.  Every system but one is hand-built, usually cobbled together out of spare parts and 'adapted' from its original purpose. My Primary Domain Controller is a Dell 2300.   The Service Tag indicates it was shipped to the original owner in 1999.  Box has a PERC/1 RAID controller.  I acquired this from a previous employer for $50.  It runs Windows Server 2003 Enterprise Edition.  Does DNS, DHCP, and RADIUS services as a bonus.  RADIUS authentication is used for VPN and Wireless access.  It is nice to sign in once and be done with it. The Secondary Domain Controller is an old desktop.  Dual P-III 933 with some extra drives. My VPN box is a P-II 250 with 384MB of RAM and a 21 GB hard drive.  I did a P-to-V to my Hyper-V box a year or so ago and retired the hardware again.  Dynamic DNS lets me connect no matter how often Comcast shuffles my IP. The Hyper-V box is a desktop system with 8GB RAM and an AMD Athlon 5000+ processor.  Cost me less than $500 to put together nearly two years ago.  I reasoned that if Vista and Windows 2008 were the same code then Vista 64-bit certified meant the drivers for Vista would load into Windows 2008.  Turns out I was right. Later I added three 1TB drives but wasn't too happy with how that turned out.  I recovered two of the drives yesterday and am building an iSCSI storage unit. (Much thanks to Starwind.  Great product).  I am using an old AMD 1.1GhZ box with 1.5 GB RAM (cobbled together from three old PCs) as my storave server.  The Hyper-V box is slated for an OS rebuild to 2008 R2 once I get the storage system worked out.  maybe in a week or two. A couple of DLink Gigabit switches ties everything together. Add in the Vonage box, the three PCs, the Wireless-N Access Point, the two notebooks and the XBox and you have gone from MacGyver to darn near Rube Goldberg. The only thing I really spend money on is power supplies and fans.  I buy top-of-the-line for both. I even pull and crimp my own cables. Oh, and if my kids hose up a PC, I have all of their data on a server elsewhere.  Every PC and laptop is pretty much interchangable for email and basic workstation tasks.  That helps a lot too. Of course I will tag SQLVariant.

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  • Tweaking Remote Control (In-Kernel LIRC)

    - by Geoff
    I've recently rebuilt my MythTV box using Mythbuntu 12.04, to take advantage of newer hardware (Ivy Bridge). On my previous build I used lirc to manage the remote, i.e. the mapping of key codes - keypresses - application keys; it was quite a journey to learn it all, and I ended up fairly comfortable with how it all worked. What I have: I have a cheap Chinavasion remote and USB dongle, which I've found several articles on; these largely revolve around working with XBMC (interesting, but I don't think directly applicable) and also around getting a Harmony remote to work (it's a Chinavasion CVSB-983 - very useful, since I needed this to get my Harmony 900 working). Mythbuntu 12.04 64-bit MythTV 0.25 (likely irrelevant) How it is right now When I plug this in, it 'just works'. Which is great, except that Ubuntu uses it natively, and prevents some of the button presses from getting through to Myth. For example, I can send a button from the remote that equates to Ctrl-Alt-A (which I assume Ubuntu isn't interested in), and then trap that in Mythfrontend, but the remote's Play button is caught by Ubuntu (which displays a large circle with a line though it, as there's no media player loaded). I understand that this is because lirc is merged into the kernel now, and I like that. What I've done so far: Found the device using lsusb: $ lsusb Bus 001 Device 004: ID 073a:2230 Chaplet Systems, Inc. infrared dongle for remote Found the event device number: $ cat /proc/bus/input/devices I: Bus=0003 Vendor=073a Product=2230 Version=0110 N: Name="HID 073a:2230" P: Phys=usb-0000:00:1a.0-1.2/input0 S: Sysfs=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/input/input5 U: Uniq= H: Handlers=sysrq kbd mouse1 event5 js0 B: PROP=0 B: EV=10001f B: KEY=4c37fff072ff32d bf54445600000000 ffffffffff 30c100b17c007 ffa67bfad951dfff febeffdfffefffff fffffffffffffffe B: REL=343 B: ABS=100030000 B: MSC=10 Tested the input with evtest (I pressed Play): $ sudo evtest /dev/input/event5 Input driver version is 1.0.1 Input device ID: bus 0x3 vendor 0x73a product 0x2230 version 0x110 Input device name: "HID 073a:2230" Supported events: Event type 0 (EV_SYN) Event type 1 (EV_KEY) Event code 1 (KEY_ESC) Event code 2 (KEY_1) Event code 3 (KEY_2) Event code 4 (KEY_3) Event code 5 (KEY_4) Event code 6 (KEY_5) Event code 7 (KEY_6) <------------snipped lots of 'Event code' lines------------> Testing ... (interrupt to exit) Event: time 1336435683.230656, -------------- SYN_REPORT ------------ Event: time 1336435683.246648, type 4 (EV_MSC), code 4 (MSC_SCAN), value c00cd Event: time 1336435683.246652, type 1 (EV_KEY), code 164 (KEY_PLAYPAUSE), value 0 Event: time 1336435683.246655, -------------- SYN_REPORT ------------ Tested showkey, again for the Play key: $ sudo showkey -s kb mode was RAW [ if you are trying this under X, it might not work since the X server is also reading /dev/console ] press any key (program terminates 10s after last keypress)... 0xe0 0x22 0xe0 0xa2 What I want: I'd like a way to scan the incoming button presses, if the above method isn't correct. I'd like to either remap each button press to something that Ubuntu/Unity will ignore, or even better pass the keypress directly to Myth (I suspect this later is only possible with lirc, but I could be wrong). I would really like to do this with the in-kernel drivers, i.e. without explicitly loading lirc; if that's the way the world is going, I'd rather find a way to map the current behaviour to what I want, rather than forcing the 'old' arrangement of loading lirc outside the kernel. Learning something new is also worthwhile! My guess: I'm assuming that this will require using setkeycodes, but have had trouble finding enough information to configure this. Any help greatly appreciated!

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  • SQL 2012 Licensing Thoughts

    - by Geoff N. Hiten
    The only thing more controversial than new Federal Tax plans is new Licensing plans from Microsoft.  In both cases, everyone calculates several numbers.  First, will I pay more or less under this plan?  Second, will my competition pay more or less than now?  Third, will <insert interesting person/company here> pay more or less?  Not that items 2 and 3 are meaningful, that is just how people think. Much like tax plans, the devil is in the details, so lets see how this looks.  Microsoft shows it here: http://www.microsoft.com/sqlserver/en/us/future-editions/sql2012-licensing.aspx First up is a switch from per-socket to per-core licensing.  Anyone who didn’t see something like this coming should rapidly search for a new line of work because you are not paying attention.  The explosion of multi-core processors has made SQL Server a bargain.  Microsoft is in business to make money and the old per-socket model was not going to do that going forward. Per-core licensing also simplifies virtualization licensing.  Physical Core = Virtual Core, at least for licensing.  Oversubscribe your processors, that’s your lookout.  You still pay for  what is exposed to the VM.  The cool part is you can seamlessly move physical and virtual workloads around and the licenses follow.  The catch is you have to have Software Assurance to make the licenses mobile.  Nice touch there. Let’s have a moment of silence for the late, unlamented, largely ignored Workgroup Edition.  To quote the Microsoft  FAQ:  “Standard becomes our sole edition for basic database needs”.  Considering I haven’t encountered a singe instance of SQL Server Workgroup Edition in the wild, I don’t think this will be all that controversial. As for pricing, it looks like a wash with current per-socket pricing based on four core sockets.  Interestingly, that is the minimum core count Microsoft proposes to swap to transition per-socket to per-core if you are on Software Assurance.  Reading the fine print shows that if you are using more, you will get more core licenses: From the licensing FAQ. 15. How do I migrate from processor licenses to core licenses?  What is the migration path? Licenses purchased with Software Assurance (SA) will upgrade to SQL Server 2012 at no additional cost. EA/EAP customers can continue buying processor licenses until your next renewal after June 30, 2012. At that time, processor licenses will be exchanged for core-based licenses sufficient to cover the cores in use by processor-licensed databases (minimum of 4 cores per processor for Standard and Enterprise, and minimum of 8 EE cores per processor for Datacenter). Looks like the folks who invested in the AMD 12-core chips will make out like bandits. Now, on to something new: SQL Server Business Intelligence Edition. Yep, finally a BI-specific SKU licensed for server+CAL configurations only.  Note that Enterprise Edition still supports the complete feature set; the BI Edition is intended for smaller shops who want to use the full BI feature set but without needing Enterprise Edition scale (or costs).  No, you don’t get ColumnStore, Compression, or Partitioning in the BI Edition.  Those are Enterprise scale features, ThankYouVeryMuch.  Then again, your starting licensing costs are about one sixth of an Enterprise Edition system (based on an 8 core server). The only part of the message I am missing is if the current Failover Licensing Policy will change.  Do we need to fully or partially license failover servers?  That is a detail I definitely want to know.

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  • Unhelpful Help

    - by Geoff N. Hiten
    Up until SQL 2012, I recommended installing Books On-Line (BOL) anywhere you installed SQL Server.  It made looking up reference information simpler, especially when you were on a server that didn’t have direct Internet access.  That all changed today.  I started the new Help Viewer with a local copy of BOL.  I actually found what I was looking for and closed the app.  Or so I thought.  Then I noticed something.  A little parasite had attached itself to my system.      Yep, the “Help” system left an “agent” behind.  Now I shouldn’t have to tell you that running application helper agents on server platforms is a bad idea.  And it gets worse.  There is no way to configure the app so that it does NOT start the parasite agent each time you restart help.  So the solution becomes do not install help on production server platforms.  Which is pretty unhelpful.

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  • Virtual Lab part 2&ndash;Templates, Patterns, Baselines

    - by Geoff N. Hiten
    Once you have a good virtualization platform chosen, whether it is a desktop, server or laptop environment, the temptation is to build “X”.  “X” may be a SharePoint lab, a Virtual Cluster, an AD test environment or some other cool project that you really need RIGHT NOW.  That would be doing it wrong. My grandfather taught woodworking and cabinetmaking for twenty-seven years at a trade school in Alabama.  He was the first instructor hired at that school and the only teacher for the first two years.  His students built tables, chairs, and workbenches so the school could start its HVAC courses.   Visiting as a child, I also noticed many extra “helper” stands, benches, holders, and gadgets all built from wood.  What does that have to do with a virtual lab, you ask?  Well, that is the same approach you should take.  Build stuff that you will use.  Not for solving a particular problem, but to let the Virtual Lab be part of your normal troubleshooting toolkit. Start with basic copies of various Operating Systems.  Load and patch server and desktop OS environments.  This also helps build your collection of ISO files, another essential element of a virtual Lab.  Once you have these “baseline” images, you can use your Virtualization software’s snapshot capability to freeze the image.  Clone the snapshot and you have a brand new fully patched machine in mere moments.  You may have to sysprep some of the Microsoft OS environments if you are going to create a domain environment or experiment with clustering.  That is still much faster than loading and patching from scratch. So once you have a stock of raw materials (baseline images in this case) where should you start.  Again, my grandfather’s workshop gives us the answer.  In the shop it was workbenches and tables to hold large workpieces that made the equipment more useful.  In a Windows environment the same role falls to the fundamental network services:  DHCP, DNS, Active Directory, Routing, File Services, and Storage services.  Plan your internal network setup.  Build out an AD controller with all the features listed.  Make the actual domain an isolated domain so it will not care about where you take it.  Add the Microsoft iSCSI target.  Once you have this single system, you can leverage it for almost any network environment beyond a simple stand-alone system. Having these templates and fundamental infrastructure elements ready to run means I can build a quick lab in minutes instead of hours.  My solutions are well-tested, my processes fully documented with screenshots, and my plans validated well before I have to make any changes to client systems.  the work I put in is easily returned in increased value and client satisfaction.

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  • Tell me a Story

    - by Geoff N. Hiten
    I recently had a friend ask me to review his resume.  He is a very experienced DBA with excellent skills.  If I had an opening I would have hired him myself.  But not because of the resume.  I know his skill set and skill levels, but there is no way his standard resume can convey that.  A bare bones list of job titles and skills does not set you apart from your competition, nor does it convey whether you have junior or senior level skills and experience.  The solution is to not use the standard format. Tell me a story.  I want to know what you were responsible for.  Describe a tough project and how you saved time/money/personnel on that project.  Link your work activity to business value.  Drop some technical bits in there since we do work in a technical field, but show me what you can do to add value to my business well above what I would pay you.  That will get my attention. The resume exists for one primary and one secondary reason.  The primary reason is to get the interview.  A Resume won’t get you a job, so don’t expect it to.  The secondary reason is to give you and the interviewer a starting point for conversations.  If I can say “Tell me more about when….” and reference an item from your resume, then that is great for both of us.  Of course, you better be able to tell me more, both from the technical and the business side, at least if I am hiring a senior or higher level position.  As for the junior DBAs, go ahead and tell your story too.  Don’t worry about how simple or basic your projects or solutions seem.  It is how you solved the problem and what you learned that I am looking for.  If you learn rapidly and think like a DBA, I can work with that, regardless of you current skill level.

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  • xpath/xslt to determine index of context node relative to all nodes of same name?

    - by Geoff
    Given the schema below - with a "query" node as the context, is it possible with xpath/xslt to determine the index of that "query" node relative to all "query" nodes in the document (not position() relative to its immediate siblings). TIA, Geoff <section> <name>About</name> <link>about</link> <questions> <question> <query>Question 1</query> <answer>Lorem ipsum dolor sit amet, consectetur adipiscing elit. In cursus, elit id lacinia semper, ligula nunc rhoncus ante, in euismod tortor nibh dictum tellus.</answer> </question> </questions> </section> <section> <name>Contact</name> <link>contact</link> <questions> <question> <query>Question 1</query> <answer>Lorem ipsum dolor sit amet, consectetur adipiscing elit. In cursus, elit id lacinia semper, ligula nunc rhoncus ante, in euismod tortor nibh dictum tellus.</answer> </question> <question> <query>Question 2</query> <answer>Lorem ipsum dolor sit amet, consectetur adipiscing elit. In cursus, elit id lacinia semper, ligula nunc rhoncus ante, in euismod tortor nibh dictum tellus.</answer> </question> </questions> </section>

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  • Compile a debian package for amd64 on a i386 machine?

    - by Rory McCann
    I have a i386 ubuntu hardy machine, and an amd64 ubuntu hardy machine. I want to compile a debian package (a.k.a. deb) for the amd64 machine on the i386 (because I don't have enough memory to compile is quickly on the amd64 machine). If I do a dpkg-buildpackage on the i386 machine, it produces a deb for i386, which can't be installed on the amd64 machine. Is there anyway to compile the deb for amd64 on the i386 machine?

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  • Reproduce PIPE functionality in IronPython

    - by Muppet Geoff
    Hi, I am hoping some genious out there can help me out with this... I am using sox to merge and resample a group of WAV files, and pipe the output directly to the input of NeroAACEnc for encoding to AAC format. I originally ran the process in a script, which included: sox.exe d:\audio\1.wav d:\audio\2.wav d:\audio\3.wav -c 1 -r 22050 -t wav - | neroAacEnc.exe -q 0.5 -if - -of test.m4a This worked as expected. The '-' in the comand line translates as 'Pipe/redirect input/output (stdin/stdout)' - So Sox pipes to stdout, and NeroAACEnc reads from stdin, the | joins them together. I then migrated the whole solution to Python, and the equivalent command became: from subprocess import call, Popen, PIPE runwav = Popen(['sox.exe', 'd:\audio\1.wav', 'd:\audio\2.wav', 'd:\audio\3.wav', '-c', '1', '-r', '22050', '-t', 'wav', '-'], shell=False, stdout=PIPE) runm4b = call(['neroAacEnc.exe', '-q', '0.5', '-if', '-', '-of', 'test.m4a'], shell=False, stdin=runwav.stdout) This also worked like a charm, exactly as expected. Slightly more convoluted, but hey :) Well now I have to move it to IronPython, and the Subprocess module isn't available (the partial implementation that is, doesn't have Popen/PIPE support - plus it seems silly to add a custom library when there is probably a native alternative). I should mention here, that I opted for IronPython over C#, because I am comfortable with Python now - however, there is a chance of moving it again later to C# native, and I am using IronPython to ease myself into it :) I have no C# or .net experience. So far I have the following equivalent, that sets up the 2 processes: from System.Diagnostics import Process wav = Process() wav.StartInfo.UseShellExecute = False wav.StartInfo.RedirectStandardOutput = True wav.StartInfo.FileName = 'sox.exe' wav.StartInfo.Arguments = 'd:\audio\1.wav d:\audio\2.wav d:\audio\3.wav -c 1 -r 22050 -t wav -' wav.Start() m4b = Process() m4b.StartInfo.UseShellExecute = False m4b.StartInfo.RedirectStandardInput = True m4b.StartInfo.FileName = 'neroAacEnc.exe' m4b.StartInfo.Arguments = '-q 0.5 -if - -of test.m4a' m4b.Start() I know that these 2 processes start (I can see Nero and Sox in the task manager) but what I can't figure out (for the life of me) is how to string the two output/input streams together, as with the previous two solutions. I have searched and searched, so I thought I'd ask! If anyone knows either: How to join the two streams with the same net result as the Python and Commandline versions; or A better way to acheive what I am trying to do. I would be extremely grateful! Many thanks in advance, Geoff P.S. A code sample based off the above would be awesome :) or a specific code example of a similar process that I can easily translate... this has broked my brayne.

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  • Can't install libopenssl-ruby

    - by Oetzi
    I'm trying to install ruby on rails and I can't seem to install libopenssl-ruby. I'm on a VPS and I've installed Jaunty as the newer releases don't seem to work very nicely. When I do: apt-get install libopenssl-ruby I get: E: Package libopenssl-ruby has no installation candidate Originally it simply said that it couldn't find the package but after wget'ing a deb form here: http://linuxappfinder.com/package/libopenssl-ruby and trying to install using dpkg I get this new error. Dpkg itself said that it couldn't install my deb as it depended on 'libopenssl-ruby'. Currently my sources.lst is this: ###### Ubuntu Main Repos deb http://us.archive.ubuntu.com/ubuntu/ hardy main restricted universe multiverse deb-src http://us.archive.ubuntu.com/ubuntu/ hardy main restricted universe multiverse Does anyone know what might be wrong?

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  • Mobile: Wrox Cross Platform Mobile Development - iPhone, iPad, Android, and everything with .NET & C#

    - by Wallym
    Wrox has produced a bundle of their 3 best selling mobile development books and it is available as of Today (March 16). A bundle of 3 best-selling and respected mobile development e-books from Wrox form a complete library on the key tools and techniques for developing apps across the hottest platforms including Android and iOS. This collection includes the full content of these three books, at a special price: Professional Android Programming with Mono for Android and .NET/C#, ISBN: 9781118026434, by Wallace B. McClure, Nathan Blevins, John J. Croft, IV, Jonathan Dick, and Chris Hardy Professional iPhone Programming with MonoTouch and .NET/C#, ISBN: 9780470637821, by Wallace B. McClure, Rory Blyth, Craig Dunn, Chris Hardy, and Martin Bowling Professional Cross-Platform Mobile Development in C#, ISBN: 9781118157701, by Scott Olson, John Hunter, Ben Horgen, and Kenny Goers Remember, go buy 8-10 copies of the 3 book set for the ones you love. They will make great and romantic gifts!!

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  • Removing connections to network printers that no longer exist

    - by Jeff Hardy
    I'm trying to delete some network printer connections from a Windows Server 2003 (SP2) machine because the printer shares no longer exist. Windows shows the printers' status as "Printer not found on server, unable to connect"; this is expected; the printers are now on a different server. Only one machine ever connected to the printer shares; it no longer needs to and I'd like to clean it up. However, when I try to delete the connections, I get an error message: --------------------------- Remove Printer --------------------------- Printer connection cannot be removed. Operation could not be completed. --------------------------- OK --------------------------- The "solutions" I've found online seem to be more voodoo than anything (and they still don't work!). Does anybody know how I can delete these long-gone printers?

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  • how to install/compile CORSIKA/FLUKA for Ubuntu x32 12.04?

    - by Pantea Davoudifar
    I want to use some programs (CORSIKA/FLUKA) which are essentially designed for 32 bit systems. so I installed Ubuntu 12.04 32 bit on my system (Intel® Core™ i7-2700K CPU @ 3.50GHz × 8). Before this I had installed Ubuntu 9.10 (32-bit) on an older system and installed g77 from hardy repositories, compiled those programs without any problem. But this time when changing the repositories, g77 could not be installed even i removed all the things that i thought make this installation impossible, for example I need gcc-3.4 and removed all newer versions and tried to install them from hardy repositories. but the problem is that, whenever I have g77, corsika does not compile, and whenever I remove it, fluka does not compile, and also i received a error messages like this: crt1.o not found in /usr/bin/lb. In fact these .o files does not exist on my system user/bin/lb I have no directory lb there? I do not know how to link it? Or do i need to reinstall everything?

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  • EPPM Webcast Series Part II: Build – Consistently delivering successful projects to ensure financial success

    - by Sylvie MacKenzie, PMP
    Oracle Primavera invites you to the second in a series of three webcasts linking Enterprise Project Portfolio Management with enhanced operational performance and better financial results. Join us for the next installment of our 'Plan, Build, Operate' webcast series, as we look to address the challenges organizations face during the execution phase of their projects. Webcast II: Build – Consistently delivering successful projects to ensure financial success. This webcast will look at Three key questions: How do you maintain consistency in delivery whilst maintaining visibility and control? How do you deal with project risk and mitigation strategies? How do you ensure accurate reporting? Hear from Geoff Roberts, Industry Strategist from Oracle Primavera. Geoff will look at how solutions can help to address the challenges around: Visibility and governance Communication and complex coordination Collecting and reporting progress Measuring and reporting It is imperative that organizations understand the impact projects can have on their business. Attend this webcast and understand how consistently delivering successful projects is vital to the financial success of an asset intensive organisation. Register today! Please forward this invite to your colleagues who you think may benefit from attending.

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  • Drive project success & financial performance with business critical Enterprise Project Portfolio Management

    - by Sylvie MacKenzie, PMP
    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:10.0pt; font-family:"Times New Roman","serif";} Oracle Primavera invites you to the first in a series of three webcasts linking Enterprise Project Portfolio Management with enhanced operational performance and better financial results. Few organizations fully understand the impact projects have on their business. Consistently delivering successful projects is vital to the financial success of an asset intensive organization. Enterprise Project Portfolio Management (EPPM) is not a new concept yet for many organizations it is not considered "business critical". Webcast 1: Plan – Aligning project selection and prioritization with corporate objectives This webcast will look at 2 key questions: Are you aligning portfolio decisions with strategic objectives? How do you effectively measure the success of your portfolio decisions? Hear from Accenture who'll present a compelling case for why asset intensive organizations should consider EPPM as business critical. They'll explore: How technology is being used to enhance project delivery How collaboration enhances delivery performance The major challenges associated with the planning phase of a project Next hear from Geoff Roberts, Industry Strategist from Oracle Primavera. With over 30 years experience in project management/project controls in the construction, utilities and oil & gas sectors, Geoff will investigate how EPPM is a best practice and can support an organization through project selection and prioritization ensuring that decisions are aligned with corporate objectives. Don’t miss out, register today!

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  • How to use gnlcomposition to concatenate video files?

    - by Hardy
    Hi All, I am trying to concatenate two video files with the gnonlin components of the gstreamer. The pipeline I am using is gst-launch-0.10 gnlcomposition { gnlfilesource name="s1" location="/home/s1.mp4" start=0 duration=2000000000 media-start=0 media-duration=2000000000 gnlfilesource name="s2" location="/home/s2.mp4" start=2000000000 duration=2000000000 media-start=0 media-duration=2000000000 } ! queue ! videorate ! progressreport name="Merging Progress" ! ffmpegcolorspace ! ffenc_mpeg4 ! ffmux_mp4 ! filesink location="/home/merge.mp4" As a result I am getting only the second file for the duration specified in the parameters. Tried several things and also searched on google but I could not figure out the problem with the above command. Can anyone point what i am doing wrong? Any other way of concatenating multiple files into one based on time is welcome too. Thanks

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