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• How to implement a birds eye view of 2D Grid Map using Android

  - by IM_Adan

  I'm a true beginner with using the android platform and I'm having difficulties on implementing a 2D grid system for a tower defense type game. Where I can place towers on a specific tile and enemies will be able to traverse through tiles etc. What I would like is a practical explanation of how I could tackle this. A step by step guide for dummies. This is what I believe are the necessary steps to take, I think I might be wrong but I hope someone could help me out. Calculate the Width and Height of the view I'm working with. Based on that, determine the number of tiles required and their dimensions, (Still not sure how I would do this) Create each tile as a Rectangle object and draw these rectangle on a canvas I would really be grateful if someone could steer me in the right direction on how to implement a 2D Grid Map using android. I hope the answer to this questions helps the TRUE beginners out there like me. I have looked at the following links below yet I still feel that I don't trully understand what's going on. For XNA: 2D Grid based game - how should I draw grid lines? How to Create a Grid for a 2D Game? Also a quick note: All my previous game development has been in Java, mostly using Java SE and Swing. I also have good understanding of the game development process, it is only android thats confusing me :S

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• Adding new users

  - by user36651

  I have an FTP server that is running Fedora Core release 6 (Zod) the problem is I need to create new users and I have root access saved in WinSCP, so I can run useradd or adduser via the fake terminal, but every time I try to use passwd <username> it crashes on me and won't allow me to change or add a password. my questions are this: --Is there a place the adduser script stores the default passwords? or what is the default? --Is there another way I can set passwords for new users? I don't want to change the root pass because EVERYONE has root access and it's saved in WinSCP (I'm sure you see the problem here...) I want to create User accounts for each user instead of giving them all blatant root access. the goal here is to gradually migrate everyone over to their new account and then change the root p/w. Any suggestions would be greatly appreciated.

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• The future continues to be brighter than ever for JD Edwards as the first ERP suite to run on Apple iPad.

  - by mseika

  Announcing JD Edwards Tools JD EdwardsLatest and Greatest Live Demo and Webcast of the New Applications User Interface & Tools on Apple iPad Tuesday December 6, 2011 at 8:00 a.m. Pacific Click here to register Oracle’s JD Edwards Development Team just completed an exciting new EnterpriseOne User Interface and a massive number of feature innovations for users and system administrators. We are looking forward to demonstrating the new User Interface and Tools. We have a panel of experts lined up just for you and we will be sure to answer all your questions. Lyle Ekdahl – Oracle Group Vice President Gary Grieshaber – Oracle Strategy Senior Director Brian Stanz – Oracle Development Senior Director The future continues to be brighter than ever for JD Edwards as the first ERP suite to run on Apple iPad. Please join us for this important webcast and see why we are so excited about these cool tools that make your work more mobile and efficient. Click here to register for the live webcast on Tuesday, December 6th, 2011 at 8:00 a.m. Pacific time! Copyright © 2011, Oracle Corporation and/or its affiliates. All rights reserved. Contact Us | Legal Notices and Terms of Use | Privacy Statement

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• rm on a directory with millions of files

  - by BMDan

  Background: physical server, about two years old, 7200-RPM SATA drives connected to a 3Ware RAID card, ext3 FS mounted noatime and data=ordered, not under crazy load, kernel 2.6.18-92.1.22.el5, uptime 545 days. Directory doesn't contain any subdirectories, just millions of small (~100 byte) files, with some larger (a few KB) ones. We have a server that has gone a bit cuckoo over the course of the last few months, but we only noticed it the other day when it started being unable to write to a directory due to it containing too many files. Specifically, it started throwing this error in /var/log/messages: ext3_dx_add_entry: Directory index full! The disk in question has plenty of inodes remaining: Filesystem Inodes IUsed IFree IUse% Mounted on /dev/sda3 60719104 3465660 57253444 6% / So I'm guessing that means we hit the limit of how many entries can be in the directory file itself. No idea how many files that would be, but it can't be more, as you can see, than three million or so. Not that that's good, mind you! But that's part one of my question: exactly what is that upper limit? Is it tunable? Before I get yelled at--I want to tune it down; this enormous directory caused all sorts of issues. Anyway, we tracked down the issue in the code that was generating all of those files, and we've corrected it. Now I'm stuck with deleting the directory. A few options here: rm -rf (dir)I tried this first. I gave up and killed it after it had run for a day and a half without any discernible impact. unlink(2) on the directory: Definitely worth consideration, but the question is whether it'd be faster to delete the files inside the directory via fsck than to delete via unlink(2). That is, one way or another, I've got to mark those inodes as unused. This assumes, of course, that I can tell fsck not to drop entries to the files in /lost+found; otherwise, I've just moved my problem. In addition to all the other concerns, after reading about this a bit more, it turns out I'd probably have to call some internal FS functions, as none of the unlink(2) variants I can find would allow me to just blithely delete a directory with entries in it. Pooh. while [ true ]; do ls -Uf | head -n 10000 | xargs rm -f 2/dev/null; done ) This is actually the shortened version; the real one I'm running, which just adds some progress-reporting and a clean stop when we run out of files to delete, is: export i=0; time ( while [ true ]; do ls -Uf | head -n 3 | grep -qF '.png' || break; ls -Uf | head -n 10000 | xargs rm -f 2/dev/null; export i=$(($i+10000)); echo "$i..."; done ) This seems to be working rather well. As I write this, it's deleted 260,000 files in the past thirty minutes or so. Now, for the questions: As mentioned above, is the per-directory entry limit tunable? Why did it take "real 7m9.561s / user 0m0.001s / sys 0m0.001s" to delete a single file which was the first one in the list returned by "ls -U", and it took perhaps ten minutes to delete the first 10,000 entries with the command in #3, but now it's hauling along quite happily? For that matter, it deleted 260,000 in about thirty minutes, but it's now taken another fifteen minutes to delete 60,000 more. Why the huge swings in speed? Is there a better way to do this sort of thing? Not store millions of files in a directory; I know that's silly, and it wouldn't have happened on my watch. Googling the problem and looking through SF and SO offers a lot of variations on "find" that obviously have the wrong idea; it's not going to be faster than my approach for several self-evident reasons. But does the delete-via-fsck idea have any legs? Or something else entirely? I'm eager to hear out-of-the-box (or inside-the-not-well-known-box) thinking. Thanks for reading the small novel; feel free to ask questions and I'll be sure to respond. I'll also update the question with the final number of files and how long the delete script ran once I have that. Final script output!: 2970000... 2980000... 2990000... 3000000... 3010000... real 253m59.331s user 0m6.061s sys 5m4.019s So, three million files deleted in a bit over four hours.

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• mdadm raid5 recover double disk failure - with a twist (drive order)

  - by Peter Bos

  Let me acknowledge first off that I have made mistakes, and that I have a backup for most but not all of the data on this RAID. I still have hope of recovering the rest of the data. I don't have the kind of money to take the drives to a recovery expert company. Mistake #0, not having a 100% backup. I know. I have a mdadm RAID5 system of 4x3TB. Drives /dev/sd[b-e], all with one partition /dev/sd[b-e]1. I'm aware that RAID5 on very large drives is risky, yet I did it anyway. Recent events The RAID become degraded after a two drive failure. One drive [/dev/sdc] is really gone, the other [/dev/sde] came back up after a power cycle, but was not automatically re-added to the RAID. So I was left with a 4 device RAID with only 2 active drives [/dev/sdb and /dev/sdd]. Mistake #1, not using dd copies of the drives for restoring the RAID. I did not have the drives or the time. Mistake #2, not making a backup of the superblock and mdadm -E of the remaining drives. Recovery attempt I reassembled the RAID in degraded mode with mdadm --assemble --force /dev/md0, using /dev/sd[bde]1. I could then access my data. I replaced /dev/sdc with a spare; empty; identical drive. I removed the old /dev/sdc1 from the RAID mdadm --fail /dev/md0 /dev/sdc1 Mistake #3, not doing this before replacing the drive I then partitioned the new /dev/sdc and added it to the RAID. mdadm --add /dev/md0 /dev/sdc1 It then began to restore the RAID. ETA 300 mins. I followed the process via /proc/mdstat to 2% and then went to do other stuff. Checking the result Several hours (but less then 300 mins) later, I checked the process. It had stopped due to a read error on /dev/sde1. Here is where the trouble really starts I then removed /dev/sde1 from the RAID and re-added it. I can't remember why I did this; it was late. mdadm --manage /dev/md0 --remove /dev/sde1 mdadm --manage /dev/md0 --add /dev/sde1 However, /dev/sde1 was now marked as spare. So I decided to recreate the whole array using --assume-clean using what I thought was the right order, and with /dev/sdc1 missing. mdadm --create /dev/md0 --assume-clean -l5 -n4 /dev/sdb1 missing /dev/sdd1 /dev/sde1 That worked, but the filesystem was not recognized while trying to mount. (It should have been EXT4). Device order I then checked a recent backup I had of /proc/mdstat, and I found the drive order. md0 : active raid5 sdb1[0] sde1[4] sdd1[2] sdc1[1] 8790402048 blocks super 1.2 level 5, 512k chunk, algorithm 2 [4/4] [UUUU] I then remembered this RAID had suffered a drive loss about a year ago, and recovered from it by replacing the faulty drive with a spare one. That may have scrambled the device order a bit...so there was no drive [3] but only [0],[1],[2], and [4]. I tried to find the drive order with the Permute_array script: https://raid.wiki.kernel.org/index.php/Permute_array.pl but that did not find the right order. Questions I now have two main questions: I screwed up all the superblocks on the drives, but only gave: mdadm --create --assume-clean commands (so I should not have overwritten the data itself on /dev/sd[bde]1. Am I right that in theory the RAID can be restored [assuming for a moment that /dev/sde1 is ok] if I just find the right device order? Is it important that /dev/sde1 be given the device number [4] in the RAID? When I create it with mdadm --create /dev/md0 --assume-clean -l5 -n4 \ /dev/sdb1 missing /dev/sdd1 /dev/sde1 it is assigned the number [3]. I wonder if that is relevant to the calculation of the parity blocks. If it turns out to be important, how can I recreate the array with /dev/sdb1[0] missing[1] /dev/sdd1[2] /dev/sde1[4]? If I could get that to work I could start it in degraded mode and add the new drive /dev/sdc1 and let it resync again. It's OK if you would like to point out to me that this may not have been the best course of action, but you'll find that I realized this. It would be great if anyone has any suggestions.

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• DHCP: server behavior in a two server situation

  - by lang2

  This is a question w.r.t server behavior in the DHCP standard. I've read the RFC and it's still not clear to me. Situation is this: There are two DHCP servers on a network. My client initially get IP address from server A. At some stage, server A goes down. My poor client is sending REQUEST in RENEW and then REBIND state, with no response whatsoever. My questions is: in this situation, should server B response to the REQUEST in REBIND state, e.g. DHCPNAK? Thanks, lang2

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• UPK Breakfast Event: "Getting It Done Right" - Independence, Ohio - November 8th

  - by Karen Rihs

  Join us for a UPK “Getting It Done Right” Breakfast Briefing Come for Breakfast. Leave Full of Knowledge. Join Oracle and Synaptis for a breakfast briefing event before you begin your day, and leave full with knowledge on how to reduce risk and increase user productivity. Oracle’s User Productivity Kit (UPK) can provide your organization with a single tool to provide learning and best practices for each area of the business and help ensure you’re “Getting It Done Right.”Learn from Deb Brown, Senior Solutions Consultant, Oracle, as she shows the UPK tool that can save project teams thousands of hours through automation as well as provide greater visibility into application rollouts and business processes. Also hear from a UPK Customer as they share their company’s success with Oracle UPK.  Learn how UPK insures rapid user adoption; significantly lowers development, system testing, and user enablement time and costs; and mitigates project risk. Finally, Pat Tierney, Oracle Practice Director - Synaptis and Jordan Collard, VP Sales - Synaptis, will conclude with an outline of their success as a UPK implementation partner. Register Now Thursday,November 8, 20127:30 a.m. – 10:00 a.m.Embassy Suites Cleveland – Rockside5800 Rockside Woods BoulevardIndependence, OH 44131Directions Agenda 7:30 a.m. Event Arrival / Registration. Breakfast Served. 8:00 a.m. Deb Brown, Senior Solutions Consultant, Oracle Oracle UPK – A Closer Look at Getting It Done, Right. Ensure End User Adoption. 8:40 a.m. UPK Customer Success Story 9:30 a.m. Pat Tierney, Oracle Practice Director - Synaptis and Jordan Collard, VP Sales - Synaptis – Implementation Partner - Using Oracle UPK Before, During and After Application Rollouts 9:50 a.m. Wrap Up   Don’t miss this special Breakfast Briefing and get a jump start on Oracle UPK technology. Please call 1.800.820.5592 ext. 11030 or Click here to RSVP for this exclusive event! Sponsored bySynaptisSynaptis is an Oracle Gold Partner, providing UPK training, implementation, content creation and post go-live support for organizations since 1999.     If you are an employee or official of a government organization, please click here for important ethics information regarding this event.  

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• What is voice xml and how can I host it

  - by Logodym

  Hi, while looking for a way to use speech recognition with flash I crossed paths with voice xml. I've gone through the wc3 description of it but still I have a few big questions. Can I simply create a vxml doc and place it on my webserver? What are the requirements? Will it work? Can I input with a microphone over the internet? I can't seem to find a direct answer to it. Thanks.

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• 3 or 4 monitors with Nvidia and Ubuntu

  - by Jason

  I saw that you are (were?) running 4 monitors with Ubuntu 8.10 and two Nvidia cards (http://stackoverflow.com/questions/27113/how-to-use-3-monitors). I was curious if you were doing this with Xinerama, a hacked up TwinView config, or multiple X screens, or some other method? Does it work with compiz? I intend to run my Dell 30" in the middle with two 1280x1024 on the sides and continue to use one X screen, and run compiz, on Ubuntu 9.04. Currently, I am using 2 monitors with twinview and compiz, which runs fantastic. I just can't get the third monitor running (unless I enable it in its own X screen, and then enable Xinerama to enable windows to be dragged as if all one X screen, but this breaks compiz, and I don't care much for having separate X screen). I am very interested in knowing how you set up 4 monitors with 2 GPU's. Thanks!

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• Unable to use Gmail in Thunderbird 3

  - by Jatin Ganhotra

  Mozilla Thunderbird v.3.1.7 I am trying to setup Gmail, but none of the settings are working. I have tried every resource: Blogs, tutorials Instructions by Google Instructions by Thunderbird Questions here But, still its not working. My settings are as follows Server Settings Server Type: IMAP Mail server Server Name: imap.gmail.com Username: [email protected] Port: 993 Default: 993 Connection Security: SSL/TLS Authentication method: Encrypted password Outgoing server (SMTP) Server Name: smtp.gmail.com Port: 587 Default: 25 Connection Security: STARTTLS Authentication method: Encrypted password Username: [email protected] IMAP is enabled in my Gmail settings. ERROR: Connection to the server [email protected] timed out. I am behind a proxy server and I have configured those settings under: Thunderbird Preferences - Advanced - Network and Disk Space - Connection Settings - Manual Proxy Configuration The proxy configuration works, as when I created a Blogs and News feeds a/c, it was working properly and fetching the feeds for me. So, Thunderbird is configured properly as per the proxy settings. Help me.

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• What should I expect from a system engineer university career

  - by Trufa

  I'm starting tomorrow a series of interviews to decide which university should I choose to get a degree in System Engineer. I know this is a serious university but I would like to get some feedback about what should I expect or "demand" from the university. My experience in the technology field is (obviously) limited and would like to be aware of what should I to be aware if the university might be good or not. Specially in following fields: Infrastructure: what are the essentials? big pluses? Theoretical vs Practical: how practical should it be? what is a "good" mix? Programming languages, frameworks, etc: Which are the ideal for learning? Most demand? Latest technologies: What should they be teaching right know to "prove" they are up to date. Qualification system: What exam methods do you think are ideal for this kind of degree, good ol' Q&A, multiple choice, projects, a fair mix? What other points do you think I should care about? What isn't important? Thanks in advance. I realize this is might be a very subjective topic so I tried to make it as specific and on topic as I could but any recommendations are of course welcome. I also understand that none of this questions will guarantee this will be a good university but it might give me another reference as to which should I choose when the moment comes.

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• What's New in Business Analytics at Oracle?

  - by jmorourke

  Business Analytics, which includes Business intelligence and Enterprise Performance Management, are top priorities for IT and Finance executives in 2012.  Some of the hot market trends and topics include managing big data, mobile information access, in-memory computing, advanced analytics, predictive modeling, leveraging unstructured data, as well as risk and performance management.  Find out what Oracle is doing about all of this, and what’s new from the market leader in Business Analytics by attending our live webcast event on April 4th titled “Introducing Oracle’s Business Analytics Strategy”.  At this event, you’ll hear about Oracle’s strategy for Business Analytics from Mark Hurd, Oracle President and you can learn about the latest advancements in Oracle’s Business Analytics solutions from Balaji Yelamanchili, SVP of Analytics and Performance Management. The keynote session from Mark and Balaji will be followed by breakout sessions that provide a more in-depth look at what’s new in specific product areas including the latest release of Oracle’s Hyperion Enterprise Performance Management suite, Oracle Business Intelligence Applications and Exalytics In-Memory Machine, Oracle Endeca Information Discovery, Big Data and Advanced Analytics solutions. This event will provide a great opportunity to hear about what’s new in Business Analytics at Oracle, and for attendees to pose questions to Oracle experts during live chat sessions.  Here’s a link to the registration page, and more details about the April 4th event.  We hope to see you (virtually) there! http://www.oracle.com/us/corporate/events/business-analytics/index.html Also, use the following hashtag to follow along on Twitter and share comments during the webcast and Q&A sessions:  #oracleanalytics

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• Ubuntu web site hosting & free ,tk domain

  - by user5819

  Hello, I am sort of new to web hosting so sorry if I ask bad questions. I have a pc that runs ubuntu I instaled apache and now I host a web site, but I need a domain name so I found out .tk is free. The site works when typing 192.168.1.x in the browser(x= a number) but in dot.tk when I register in ip it whats one that look like 79.117.x.x so thats where I get stuck, I think I managed to make my ip address static but it still looks like 192.168.1.x and I can't put that in because it says: " This IP address is not valid". Why must it have the ip address that looks like 79.117.x.x and won't work with the internal static one and how can I do to host my site with a .tk domain name ? PS: I'm using a cisco router that's connected with computer via a cable.

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• Redirect HTTP requests based on subdomain address without changing accessed URL?

  - by tputkonen

  Let's say I have a domain, www.mydomain.com. And I ordered a new domain, abc.newdomain.com. Both domains are hosted in the same ISP, so currently requests to either of those addresses result in the same page being shown. I want to redirect all requests to abc.newdomain.com to folder /wp so that when users access abc.newdomain.com they would see whatever is inside folder /wp without seeing the URL change. Questions: How can I achieve this using .htaccess? How can I prevent users from accessing directly /wp directory (meaning that www.mydomain.com/wp would be blocked)?

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• Toshiba Satellite error 10053A0000 when re installing windows xp home on an existing windows 7

  - by Jayapal Chandran

  I had installed windows 7 for testing. Now i want to re-install windows xp home original. I am using the toshiba installation(recovery) disk. The installation process asked a few questions. I selected the option to retain other partitions and to delete only c drive. In the next step i got this error. http://web1.toshiba.ca/support//techsupport/tsbs/all/-tsb001404.htm So, what should i do to retain my files in d drive and only allow the installation to delete c drive?

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• how to connect virtual box os and local machine

  - by Nrew

  This question is in connection to this question asked by a user before: http://superuser.com/questions/73470/virtualbox-vdi-file-to-vmware On how to convert vdi to vmdk or vmx using vmware converter. How do I connect the windows xp that is in virtual box to the local computer (windows 7) in a network. Because I got this error while I tried following this instruction: Give the IP address, username and password of the remote machine that you would like to convert and then hit next I got this error in vmware converter: Unable to connect the specified host 10.0.2.15 which is the ip address of the xp machine inside virtual box. It also said that there is a network configuration problem. And when I inputted the ip address from whatismyip.com which should be the same as the ip address on local machine. I didn't get the previous error but I got another one, it said that: insufficient permissions to connect to "ip address" What solution can you suggest for this problem?

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• Almost 2013 - Any decent options for mp3 to text? (Speech Recognition)

  - by ajacian81

  I know there's some questions here on s/u regarding converting spoken word mp3 to text, however, most are pretty old (2010 and earlier). I'm just wondering if there's any new legitimate options for this task - if google has shown us anything, speech recognition has come a long way. Personally, I'd prefer a linux based solution, but I'm not picky. I've heard a lot about something called Sphinx, but I tried to set it up and get it going but I couldn't. I know there's a number of different componenents for Sphinx so maybe I was doing it wrong? Either way, are there any new applications for Speech recognition, especially from MP3 files? Thanks!

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• Dell R910 with Integrated PERC H700 Adapter

  - by Alex

  I am in the process of designing an architecture based around a single Dell R910 server running Windows Server 2008 Enterprise. I would like the server to have 8 RAID1 pairs of spinning disks, so I intend to implement: Dell R910 Server Integrated PERC H700 Adapter with 1 SAS expander on each SAS connector (so 8 expanders in total) 7 RAID1 pairs of 143Gb 15K HDD, each paired on one connector using an expander 1 RAID1 pair of 600Gb 10K HDD, paired on the remaining connector using an expander My main concern is not to introduce bottlenecks in this architecture, and I have the following questions. Will the PERC H700 Adapter act as a bottleneck for disk access? Will using SAS expanders for each RAID1 pair cause a bottleneck or would this be as fast as pairing disks directly attached to the SAS connectors? Can I mix the disks, as long as the disks in each RAID1 pair are the same? I assume so. Can anyone recommend any single-to-double SAS Expanders that are known to function well with the H700? Cheers Alex

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• What is meant by the terms CPU, Core, Die and Package?

  - by lovesh

  Now this might sound like too many previous questions, but I am really confused about these terms. I was trying to understand how "dual core" is different from "Core 2 Duo", and I came across some answers. For example, this answer states: Core 2 Duo has two cores inside a single physical package and dual core is 2 cpu in a package 2 cpu's in a die = 2 cpu's made together 2 cpu's in package = 2 cpu's on small board or linked in some way Now, is a core different from a CPU? What I understand is there is something that does all the heavy computation, decision making, math and other stuff (aka "processing") is called a CPU. Now what is a Core? And what is a processor when somebody says he has got a Core 2 Duo? And in this context what is a Package and what is a Die? I still don't understand the difference between Core 2 Duo and Dual Core. And can somebody explain hyper-threading (symmetric multi-threading) too if they are super generous?

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• How can a non-technical person can learn to write a spec for small projects?

  - by Joseph Turian

  How can a non-technical person learn to write specs for small projects? A friend of mine is trying to outsource some development on a statistics project. In particular, he does a lot of work in excel, and wants to outsource the creation of scripts to do what he now does by hand. However, my friend is extremely non-technical. He is poor at writing technical specs. When he does write a spec, it is written the way you would describe doing something in excel (go to this cell and then copy the value to that cell). It is also overly verbose, and does examples several times. I'm not sure if he properly describes corner cases. The first project he outsourced was a failure. I think he overdescribed some details, but underdescribed corner cases. That and/or the coder he hired didn't think through the corner cases and ask appropriate questions. I'm not sure. I got on IM with him and it took me half an hour to dig out a description that should have taken five minutes or less to describe. I wrote the scripts for him at the end, but didn't examine why his process with the coder failed. He has asked me for help. However, I refuse to get involved, because taking his spec and translating it into clear requirements is 10x more work than executing on a clearly written spec. What is the right way for him to learn? Are there resources he could use? Are there ways he can learn from small, low-pressure practice projects with coders? [edit: Most of his scripts are statistical and data processing oriented. e.g. take this column and run an average over it. Remove these rows under these conditions. So the challenge is different than spec'ing a web app.]

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• Is it bad practice for services to share a database in SOA?

  - by Paul T Davies

  I have recently been reading Hohpe and Woolf's Enterprise Integration Patterns, some of Thomas Erl's books on SOA and watching various videos and podcasts by Udi Dahan et al. on CQRS and Event Driven systems. Systems in my place of work suffer from high coupling. Although each system theoretically has its own database, there is a lot of joining between them. In practice this means there is one huge database that all systems use. For example, there is one table of customer data. Much of what I've read seems to suggest denormalising data so that each system uses only its database, and any updates to one system are propagated to all the others using messaging. I thought this was one of the ways of enforcing the boundaries in SOA - each service should have its own database, but then I read this: http://stackoverflow.com/questions/4019902/soa-joining-data-across-multiple-services and it suggests this is the wrong thing to do. Segregating the databases does seem like a good way of decoupling systems, but now I'm a bit confused. Is this a good route to take? Is it ever recommended that you should segregate a database on, say an SOA service, an DDD Bounded context, an application, etc?

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• ArchBeat Link-o-Rama for 2012-06-22

  - by Bob Rhubart

  Guide to integration architecture | Stephanie Mann "The landscape of integration architecture is shifting as service-oriented and cloud-based architecture take the fore," says Stephanie Mann. "To ensure success, enterprise architects and developers are turning to lighter-weight infrastructure to support more complex integration projects." FY13 Oracle PartnerNetwork Kickoff - Tues June 26, 2012 Join us for a one-hour live online event hosted by the Oracle PartnerNetwork team as we kickoff FY13. Other dates/times for EMEA/LAD/JAPAN/APAC. Click the link for details. Why should you choose Oracle WebLogic 12c instead of JBoss EAP 6? | Ricardo Ferreira Okay, you would expect an Oracle guy to make this argument. But Ferreira takes a very deep, very detailed technical dive into the issue. So hear the man out, will ya? Hibernate4 and Coherence | Rene van Wijk According to Oracle ACE Rene van Wijk, "there are two ways to integrate Hibernate and Coherence." In this post he illustrates one of them. Simple Made Easy | Rich Hickey Rich Hickey discusses simplicity, why it is important, how to achieve it in design and how to recognize its absence in the tools, language constructs and libraries in this presentation from QCon London 2012. Starting a cluster | Mark Nelson Fusion Middleware A-Team blogger Mark Nelson looks at Oracle SOA Suite, Oracle BPM, and Oracle Coherence, three products that are " commonly clustered, and which have somewhat different requirements." Why building SaaS well means giving up your servers | GigaOM The biggest benefit to PaaS, reports GigaOM's Derrick Harris, "might be a better product because the company is able to focus on building the app rather than managing servers." Personas - what, why & how | Mascha van Oosterhout "To be able to create a successful, user-friendly website or application," says Mascha van Oosterhout, "every decision you take, whether you are part of the marketing team, the design team or the development team, should be based on what you know about the user." Thought for the Day "Machines take me by surprise with great frequency." — Alan Turing(June 23, 1912 - June 7, 1954) Source: Brainy Quote

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• Why does my $LD_LIBRARY_PATH get unset when using screen with bash?

  - by UltraNurd

  This is related to http://superuser.com/questions/27376/why-does-my-ld-library-path-get-unset-launching-terminal, but a different set of symptoms. First, /usr/bin/screen is setuid as per the other question. Second, the default shell on this system is /bin/tcsh for various historical reasons, and we're not allowed to chsh to /bin/bash, so I typically run bash manually immediately after login. Third, I almost always use screen, but I want ctrl-a ctrl-c in screen to create a new bash "tab", so I always invoke bash first. That is: {~} $ echo $SHELL /bin/tcsh {~} $ bash [~] echo $SHELL /bin/bash [~] screen -U [~] ...and when reconnecting: {~} $ echo $SHELL /bin/tcsh {~} $ screen -dUr [~] echo $SHELL /bin/bash [~] However, my $LD_LIBRARY_PATH is there in tcsh, there in bash, but empty once I run screen; it is still present if I just run screen from tcsh, but then I get new tcsh "tabs" when I use ctrl-a ctrl-c in screen. Any ideas?

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• Hosted version of Yahoo! answers [closed]

  - by Neil

  Hi all. Does anyone know of a hosted version of Yahoo! Answers (or Stackoverflow/Superuser) that I could integrate with my site? I know that there are some open-source implementations (see http://meta.stackoverflow.com/questions/2267/stack-overflow-clones?page=1&tab=votes#tab-top) but I'd rather have some hosted if possible. I know there is http://stackexchange.com/ as well, but I really want some tight integration with the rest of my site. Failing that, has anyone got any experience with the open source versions? Some of them look a little, erm, unfinished... Thanks. Neil.

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• Help with running crontab from root

  - by user242065

  Im using OSX and having trouble getting a cron job to run. I type the following: $ sudo -i $ crontab -e I then enter: * * * * * root ifconfig en0 down > /dev/null 0 19 * * * root ifconfig en0 down > /dev/null 0 7 * * * root ifconfig en0 up > /dev/null and no success, the first line is for testing. I want it to shut off my internet. The next two lines I plan to leave in, once I get this working. If I type this in to the terminal the internet goes off ifconfig en0 down Why is my cron job not shutting down the internet? FYI: This is a follow up question from http://stackoverflow.com/questions/3027362/how-can-i-write-a-cron-job-that-will-block-my-internet-from-7pm-to-7am-so-i-can most of the comments there are people making fun of me. And a few attempts to solve the problem with out cron jobs.

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