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  • Redmine plug-in fails at rake db:migrate_plugins

    - by Drew
    Hey, First post, so hope I'm in the right place. While trying to install the Redmine plug-in 'Wiki Extensions', I keep getting stuck when I try to run the "rake db:migrate_plugins RAILS_ENV=production" command. I am moving server and I'm in bit over my head. Haven't found anything on Google that has helped me much, though I might have missed something. I have pasted in the output with --trace: (in /srv/www/vastpark.org/redmine) ** Invoke db:migrate_plugins (first_time) ** Invoke environment (first_time) ** Execute environment ** Execute db:migrate_plugins Migrating engines... Migrating acts_as_activity_provider... Migrating acts_as_attachable... Migrating acts_as_customizable... Migrating acts_as_event... Migrating acts_as_list... Migrating acts_as_searchable... Migrating acts_as_tree... Migrating acts_as_versioned... Migrating acts_as_watchable... Migrating awesome_nested_set... Migrating classic_pagination... Migrating coderay-0.9.2... Migrating gravatar... Migrating open_id_authentication... Migrating prepend_engine_views... Migrating redmine_wiki_extensions... == CreateWikiExtensionsComments: migrating =================================== -- create_table(:wiki_extensions_comments) rake aborted! An error has occurred, all later migrations canceled: Mysql::Error: Table 'wiki_extensions_comments' already exists: CREATE TABLE 'wiki_extensions_comments' ('id' int(11) DEFAULT NULL auto_increment PRIMARY KEY, 'wiki_page_id' int(11), 'key_word' varchar(255), 'user_id' int(11), 'comment' text, 'created_at' datetime, 'updated_at' datetime) ENGINE=InnoDB

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  • Excel 2007 - Adding line breaks in a cell and no line over 50 characters

    - by Richard Drew
    I have notes stored in an excel cell. I add line breaks and dates every time I add a new note. I need to copy this to another program, but it has a line limit of 50 characters. I want a line break for each new date and for when each date's comment goes over 50 characters. I'm able to do one or the other, but I can't figure out how to do both. I'd prefer words not to be split up, but at this point I don't care. Below is some sample input. If needed for a SUBSTITUTE or REPLACE function, I could add a ~ before each date in my input as a delimiter. Sample Input: 07/03 - FU on query. Copies and history included. CC to Jane Doe and John Public 06/29 - Cust claiming not to have these and wrong PO on query form. Responded with inv sent dates and locations, correct PO values, and copies. 06/27 - New ticket opened using query form 06/12 - Opened ticket with helpdesk asking status 05/21 - Copy submitted to [email protected] 05/14 - Copy sent to John Public and [email protected] Ideal Output: 07/03 - FU on query. Copies and history included. CC to Jane Doe and John Public 06/29 - Cust claiming not to have these and wrong PO on query form. Responded with inv sent dates an d locations, correct PO values, and copies. 06/27 - New ticket opened using query form 06/12 - Opened ticket with helpdesk asking status 05/21 - Copy submitted to [email protected] om 05/14 - Copy sent to John Public and email@custome r.com

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  • Indexing text file content with command line query

    - by Drew Carlton
    I take daily notes in a plaintext file labeled with date in the YYYYMMDD format. These files are no more than 100 lines long, and are written in a blog style format. I'd like to be able search these files as if they were blog posts indexed by google, with some phrase query returning the most relevant/recent date filenames, with a snippet containing the relevant part. Ideally it would be something like this: #searchindex "laptop no sound" returns: 20100909.txt: ... laptop sound isn't working... 20100101.txt ... sound is too loud... debating what laptop to buy... and so on and so forth. I'm working on a linux platform (Debian with GNOME). I've looked at beagle and tracker, but they just seem complete overkill for what I want.

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  • Have 3 Monitors Display the same thing? (WinXP)

    - by Drew Tenenbaum
    I have a setup in which there is a Computer running windows XP, with 3 monitors plugged into it, with a "Matrox Millennium P750" Graphics card. What I want is to enable mirroring of ALL THREE MONITORS, meaning I want all the monitors to display the same image. In Matrox Powerdesk, it does not have an option to do this, and I'm pretty sure that Windows XP does not support it nativley. I really should only need some software/drivers, right? What can i do to display the same thing on 3 screens?

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  • Why do manufacturers not show all hardware power usage?

    - by Drew
    I find it slightly more difficult to build a computer when I do not know how much power is needed for a component. When selecting a power supply for a computer, it is difficult to know how large of one to get. You don't want to go too large for cost reasons and circuit reasons, but you don't want to go too low and not be able to properly use every component. For instance, a graphics card might say "Minimum of a 500 Watt power supply. (Minimum recommended power supply with +12 Volt current rating of 30 Amps.)" But it really needs 360W (12V * 30A). So why don't they just say "Uses 360W max and xxxW peak"? Processors, I have noticed are good at reporting their power usage, but aside from processors and sometimes graphics cards, power usage is easily found. What is the power consumed by the Blu-ray / DVD drives? By the HDDs/SSDs? By the Mobo? etc. Why are these questions not easily answered when building a machine?

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  • Manually "draw" data for chart, output to CSV

    - by Ambidex
    I need a service that will allow me to draw a chart line by hand and generate data points for what I drew. This might sound crazy, but I need some data (preferably in CSV output) that will only approximately show value X at time Y and I do not want to go and produce these values by hand. I only have to know how it will flow along. Anyone know how to actually accomplish this? So, I would actually want to draw a line on a graph, and then get the output (X + Y) from that line I drew in a (preferably) CSV.

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  • Get OS information with WMI from Small Business Server 2011 for Windows 2008 virtual machine

    - by Drew
    In my organization, the main server is Windows Small Business 2011. It uses a WMI service (I think) to get the Security and Update status of computers on the network. I have a Server 2008 virtual machine in VirtualBox with bridged network adapter. The SBS will not correctly get the status of, nor the operating system of, the Server 2008 VM. What settings do I have wrong / can I actually do this for a virtual machine in the first place? -- I do not know what further information might be needed, just ask and I will post.

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  • Suggestions? Password & Encrypted Read/Write File like a Mac (.dmg or .SparseBundle) also R/W on Windows, Ubuntu

    - by Jeff Drew
    For years I have used .dmg or .sparsebundle (Encrypted and Password Protected) to safely keep home directory backups on my Mac. Now, I am looking for a similar Full Permissions/Read/Write that maintains an encrypted, and password protected file that it Tri-Platform. I'd like to have the future ability to use it on Mac OS X, Windows 7/8, and Ubuntu (current releases+). I appreciate your recommendations. Thank you. (I like mounting a DMG and having a file directory structure that can be easily maintained and organized. When done, un-mounting the file.) (I've seen Windows tools to open encrypted DMG files? and I will explore these options, but with the desire to also keep the file accessible on on three OSes, someone might have additional suggestions.)

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  • Toshiba Equium A110-252 laptop won't boot Windows.

    - by Drew Gibson
    I have a Toshiba Equium A110-252 laptop (XP Pro) which stopped booting a couple of weeks ago. The symptoms are that the laptop would display its DOS Toshiba splash screen, then the Windows (XP) boot screen would display, then a very brief blue screen flash, then back to the boot options screen (offering safe mode, safe mode with networking etc, last known good config, etc... none of these work). I assumed a duff HD, and swapped it for a new one and reinstalled from a TrueImage backup. This worked until I installed windows updates I think (the backup was a few months old), and now the PC is doing the same thing. I have installed a third, old HD (60GB) with Ubuntu 11.04 on it, and everything is fine. PC boots and runs Ubuntu beautifully. I need Windows running on it though ! Given these symptoms, could it a windows update issue ? Or might I have a hardware fault still ?

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  • Second Monitor "Input Not Supported"

    - by Drew
    I have two identical monitors (new Acer s211hl) with a native resolution of 1920x1080. When enabling dual monitor support in Windows 7, the primary monitor works as expected, but the second monitor says, "Input not Supported" and fails to display anything. If I change the resolution of the second monitor to 1440x900, it works as expected. Likewise, if I set it to 1920x1080 with a refresh rate of 30hz, the monitor displays video. However, neither of these are solutions, because the output looks very blurry, and the content is stretched. I am using the following hardware: Monitors: Acer s211hl Motherboard: Asus F1A75M-Pro CPU/GPU: AMD A8-3850 with integrated Radeon HD 6550D graphics I suspect that there is probably an issue with the integrated graphics or motherboard not being able to output to two 1920x1080 monitors, but I am hoping for official confirmation.

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  • Problems setting Hyper-V permissions

    - by Drew Burchett
    I am using a Windows 2012 Hyper-V server to host some test PCs. Our support personnel should be able to take snapshots of these machines and roll a test machine back to a specific snapshot, but they should not have any other permissions. I have followed the directions in this article and, on suggestion of another article have added the specific AD group to the local Hyper-V Administrators group, but whenever one of them attempts to connect to the server to take a snapshot, they get an error stating that they do not have permission to connect to that server. I'm sure I'm missing something, but at this point I'm at a loss as to what that would be. Can anyone tell me how to properly set these permissions? edit: Per request I am attaching a screenshot of the permissions I have set for this group.

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  • tmux equivalent of "screen -R"?

    - by Drew Frank
    The tmux attach command acts more like a combination of screen -r and screen -x -- first it trys to attach to the most recently detached session, and then if none is available it will attach to a currently attached session. I want to emulate the behavior of screen -R: first try to attach to a detached session, then start a new session if there were no detached sessions. What is the best way to achieve this in tmux?

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  • That Escalated Quickly

    - by Jesse Taber
    Originally posted on: http://geekswithblogs.net/GruffCode/archive/2014/05/17/that-escalated-quickly.aspxI have been working remotely out of my home for over 4 years now. All of my coworkers during that time have also worked remotely. Lots of folks have written about the challenges inherent in facilitating communication on remote teams and strategies for overcoming them. A popular theme around this topic is the notion of “escalating communication”. In this context “escalating” means taking a conversation from one mode of communication to a different, higher fidelity mode of communication. Here are the five modes of communication I use at work in order of increasing fidelity: Email – This is the “lowest fidelity” mode of communication that I use. I usually only check it a few times a day (and I’m trying to check it even less frequently than that) and I only keep items in my inbox if they represent an item I need to take action on that I haven’t tracked anywhere else. Forums / Message boards – Being a developer, I’ve gotten into the habit of having other people look over my code before it becomes part of the product I’m working on. These code reviews often happen in “real time” via screen sharing, but I also always have someone else give all of the changes another look using pull requests. A pull request takes my code and lets someone else see the changes I’ve made side-by-side with the existing code so they can see if I did anything dumb. Pull requests can facilitate a conversation about the code changes in an online-forum like style. Some teams I’ve worked on also liked using tools like Trello or Google Groups to have on-going conversations about a topic or task that was being worked on. Chat & Instant Messaging  - Chat and instant messaging are the real workhorses for communication on the remote teams I’ve been a part of. I know some teams that are co-located that also use it pretty extensively for quick messages that don’t warrant walking across the office to talk with someone but reqire more immediacy than an e-mail. For the purposes of this post I think it’s important to note that the terms “chat” and “instant messaging” might insinuate that the conversation is happening in real time, but that’s not always true. Modern chat and IM applications maintain a searchable history so people can easily see what might have been discussed while they were away from their computers. Voice, Video and Screen sharing – Everyone’s got a camera and microphone on their computers now, and there are an abundance of services that will let you use them to talk to other people who have cameras and microphones on their computers. I’m including screen sharing here as well because, in my experience, these discussions typically involve one or more people showing the other participants something that’s happening on their screen. Obviously, this mode of communication is much higher-fidelity than any of the ones listed above. Scheduled meetings are typically conducted using this mode of communication. In Person – No matter how great communication tools become, there’s no substitute for meeting with someone face-to-face. However, opportunities for this kind of communcation are few and far between when you work on a remote team. When a conversation gets escalated that usually means it moves up one or more positions on this list. A lot of people advocate jumping to #4 sooner than later. Like them, I used to believe that, if it was possible, organizing a call with voice and video was automatically better than any kind of text-based communication could be. Lately, however, I’m becoming less convinced that escalating is always the right move. Working Asynchronously Last year I attended a talk at our local code camp given by Drew Miller. Drew works at GitHub and was talking about how they use GitHub internally. Many of the folks at GitHub work remotely, so communication was one of the main themes in Drew’s talk. During the talk Drew used the phrase, “asynchronous communication” to describe their use of chat and pull request comments. That phrase stuck in my head because I hadn’t heard it before but I think it perfectly describes the way in which remote teams often need to communicate. You don’t always know when your co-workers are at their computers or what hours (if any) they are working that day. In order to work this way you need to assume that the person you’re talking to might not respond right away. You can’t always afford to wait until everyone required is online and available to join a voice call, so you need to use text-based, persistent forms of communication so that people can receive and respond to messages when they are available. Going back to my list from the beginning of this post for a second, I characterize items #1-3 as being “asynchronous” modes of communication while we could call items #4 and #5 “synchronous”. When communication gets escalated it’s almost always moving from an asynchronous mode of communication to a synchronous one. Now, to the point of this post: I’ve become increasingly reluctant to escalate from asynchronous to synchronous communication for two primary reasons: 1 – You can often find a higher fidelity way to convey your message without holding a synchronous conversation 2 - Asynchronous modes of communication are (usually) persistent and searchable. You Don’t Have to Broadcast Live Let’s start with the first reason I’ve listed. A lot of times you feel like you need to escalate to synchronous communication because you’re having difficulty describing something that you’re seeing in words. You want to provide the people you’re conversing with some audio-visual aids to help them understand the point that you’re trying to make and you think that getting on Skype and sharing your screen with them is the best way to do that. Firing up a screen sharing session does work well, but you can usually accomplish the same thing in an asynchronous manner. For example, you could take a screenshot and annotate it with some text and drawings to illustrate what it is you’re seeing. If a screenshot won’t work, taking a short screen recording while your narrate over it and posting the video to your forum or chat system along with a text-based description of what’s in the recording that can be searched for later can be a great way to effectively communicate with your team asynchronously. I Said What?!? Now for the second reason I listed: most asynchronous modes of communication provide a transcript of what was said and what decisions might have been made during the conversation. There have been many occasions where I’ve used the search feature of my team’s chat application to find a conversation that happened several weeks or months ago to remember what was decided. Unfortunately, I think the benefits associated with the persistence of communicating asynchronously often get overlooked when people decide to escalate to a in-person meeting or voice/video call. I’m becoming much more reluctant to suggest a voice or video call if I suspect that it might lead to codifying some kind of design decision because everyone involved is going to hang up the call and immediately forget what was decided. I recognize that you can record and archive these types of interactions, but without being able to search them the recordings aren’t terribly useful. When and How To Escalate I don’t mean to imply that communicating via voice/video or in person is never a good idea. I probably jump on a Skype call with a co-worker at least once a day to quickly hash something out or show them a bit of code that I’m working on. Also, meeting in person periodically is really important for remote teams. There’s no way around the fact that sometimes it’s easier to jump on a call and show someone my screen so they can see what I’m seeing. So when is it right to escalate? I think the simplest way to answer that is when the communication starts to feel painful. Everyone’s tolerance for that pain is different, but I think you need to let it hurt a little bit before jumping to synchronous communication. When you do escalate from asynchronous to synchronous communication, there are a couple of things you can do to maximize the effectiveness of the communication: Takes notes – This is huge and yet I’ve found that a lot of teams don’t do this. If you’re holding a meeting with  > 2 people you should have someone taking notes. Taking notes while participating in a meeting can be difficult but there are a few strategies to deal with this challenge that probably deserve a short post of their own. After the meeting, make sure the notes are posted to a place where all concerned parties (including those that might not have attended the meeting) can review and search them. Persist decisions made ASAP – If any decisions were made during the meeting, persist those decisions to a searchable medium as soon as possible following the conversation. All the teams I’ve worked on used a web-based system for tracking the on-going work and a backlog of work to be done in the future. I always try to make sure that all of the cards/stories/tasks/whatever in these systems always reflect the latest decisions that were made as the work was being planned and executed. If held a quick call with your team lead and decided that it wasn’t worth the effort to build real-time validation into that new UI you were working on, go and codify that decision in the story associated with that work immediately after you hang up. Even better, write it up in the story while you are both still on the phone. That way when the folks from your QA team pick up the story to test a few days later they’ll know why the real-time validation isn’t there without having to invoke yet another conversation about the work. Communicating Well is Hard At this point you might be thinking that communicating asynchronously is more difficult than having a live conversation. You’re right: it is more difficult. In order to communicate effectively this way you need to very carefully think about the message that you’re trying to convey and craft it in a way that’s easy for your audience to understand. This is almost always harder than just talking through a problem in real time with someone; this is why escalating communication is such a popular idea. Why wouldn’t we want to do the thing that’s easier? Easier isn’t always better. If you and your team can get in the habit of communicating effectively in an asynchronous manner you’ll find that, over time, all of your communications get less painful because you don’t need to re-iterate previously made points over and over again. If you communicate right the first time, you often don’t need to rehash old conversations because you can go back and find the decisions that were made laid out in plain language. You’ll also find that you get better at doing things like writing useful comments in your code, creating written documentation about how the feature that you just built works, or persuading your team to do things in a certain way.

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  • Invisible JFrame/JTable how much faster ?

    - by chacko
    I have a swing app. with a jframe with lots of internal frames containing large JTable. Those jtables get updated continuously so there is lots of repainting going on. in some circumstances I can simply keep the JFrame invisible. (frame.setVisible(false)) I was wondering if anybody knows if I will gain something in terms of performance (something considerable or not) such as 50% gain or you would only get 2% gain... and maybe some sort of explaination on what to expect. thanks

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  • LINQ to XML

    Gain an understanding of LINQ (Language Integrated Query) to XML and see why you'll never want to use the DOM again.

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  • Process, Participate, Play: Oracle BPM and SOA at Oracle OpenWorld

    - by Oracle OpenWorld Blog Team
    Oracle OpenWorld 2012 provides a unique opportunity for BPM and SOA professionals to meet industry leaders and peers, and get insight into the latest product advancements that will help their companies gain a competitive advantage.Via a variety of sessions, hands-on labs, birds-of-a-feather sessions, and demos, attendees will learn how Oracle SOA Suite, Oracle BPM Suite, and Oracle SOA Governance provide a unified and collaborative environment for design and deployment of dynamic business processes. Topics include architecture, integration, implementation, and best practices for on-premises or cloud deployments. Participants will learn how new capabilities of BPM and SOA can help their enterprises gain unprecedented visibility, agility and efficiencies.Maximize the value of attending Oracle Open World by attending sessions that best meet your needs and goals. This exciting series of SOA and BPM sessions is focused on three different audience segments. Business managers or business analysts, click here  IT executives or enterprise architects, click here Developers looking to sharpen their SOA skills, click here To stay in touch with the details and announcements for Oracle BPM Suite and Oracle SOA Suite, check out the BPM and SOA blogs.

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  • CDN for site with target market in Australia

    - by Jae Choi
    I was told that http://www.edgecast.com/ is very good CDN provider for Australian market. I have a cloud server based in Sydney Australia but was wondering whether it's even worth getting cdn as my target market is only Australia based also. Would I see any performance gain if I use above CDN services or would this be more for sites that target international visitors? I have Apache installed in our server but I would like to install Nginx. Would I see much more gain in performance on this change than CDN or should I go for both as they are all beneficial?

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  • How to deal with or survive with the information overload

    - by Name
    I will better explain my question. I have been struggling with this for long time Everytime i want to read something for e,g book on java , then i find so much stuff like many tutorials , many ebooks that i am not able to decide which one to choose. I spend some time reading one , then 2 and so on and in the end i leave and gain nothing. I like the old days when we had only few resources like one hard book and at least i finish that from start to finish and gained much but now days there is so much information that mind jumps from one source to other and gain nothing what should i do

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  • Why does a proportional controller have a steady state error?

    - by Qantas 94 Heavy
    I've read about feedback loops, how much this steady state error is for a given gain and what to do to remove this steady state error (add integral and/or derivative gains to the controller), but I don't understand at all why this steady state error occurs in the first place. If I understand how a proportional control works correctly, the output is equal to the current output plus the error, multiplied by the proportional gain (Kp). However, wouldn't the error slowly diminish over time as it is added (reaching 0 at infinite time), not have a steady state error? From my confusion, it seems I'm completely misunderstanding how it works - a proper explanation of how this steady state error eventuates would be fantastic.

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  • Best Advice Ever: Learn By Helping Others

    - by Argenis
    I remember when back in 2001 my friend and former SQL Server MVP Carlos Eduardo Rojas was busy earning his MVP street-cred in the NNTP forums, aka Newsgroups. I always thought he was playing the Sheriff trying to put some order in a Wild Wild West town by trying to understand what these people were asking. He spent a lot of time doing this stuff – and I thought it was just plain crazy. After all, he was doing it for free. What was he gaining from all of that work? It was not until the advent of Twitter and #SQLHelp that I realized the real gain behind helping others. Forget about the glory and the laurels of others thanking you (and thinking you’re the best thing ever – ha!), or whatever award with whatever three letter acronym might be given to you. It’s about what you learn in the process of helping others. See, when you teach something, it’s usually at a fixed date and time, and on a specific topic. But helping others with their issues or general questions is something that goes on 24x7, on whatever topic under the sun. Just go look at sites like DBA.StackExchange.com, or the SQLServerCentral forums. It’s questions coming in literally non-stop from all corners or the world. And yet a lot of people are willing to help you, regardless of who you are, where you come from, or what time of day it is. And in my case, this process of helping others usually leads to me learning something new. Especially in those cases where the question isn’t really something I’m good at. The delicate part comes when you’re ready to give an answer, but you’re not sure. Often times I’ll try to validate with Internet searches and what have you. Often times I’ll throw in a question mark at the end of the answer, so as not to look authoritative, but rather suggestive. But as time passes by, you get more and more comfortable with that topic. And that’s the real gain.  I have done this for many years now on #SQLHelp, which is my preferred vehicle for providing assistance. I cannot tell you how much I’ve learned from it. By helping others, by watching others help. It’s all knowledge and experience you gain…and you might not be getting all that in your day job today. Such thing, my dear reader, is invaluable. It’s what will differentiate yours amongst a pack of resumes. It’s what will get you places. Take it from me - a guy who, like you, knew nothing about SQL Server.

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