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• Database Insider - December 2012 issue

  - by Javier Puerta

  The December issue of the Database Insider newsletter is now available. (Full newsletter here) Big Data: From Acquisition to Analysis 2012 will likely be remembered as the year of big data, as a new generation of technologies enables organizations to acquire, organize, and analyze the exponentially growing and typically less-structured data generated from a variety of new sources. Oracle has produced a series of five short videos that offer a quick and compelling high-level introduction to big data. Read More Total Cost of Ownership Comparison: Oracle Exadata vs. IBM P-Series Read the research that found that over three years, the IBM hardware running Oracle Database cost 31 percent more in total cost of ownership than Oracle Exadata. Webcast - Oracle Exadata Database Machine X3 Learn about Oracle’s next-generation database machine, Oracle Exadata X3, that combines massive memory and low-cost disks to deliver the highest performance at the lowest cost. Available in an eight-rack configuration, it allows you to start small and grow.    Maximum Availability with Oracle GoldenGate Discover how to eliminate not only unplanned downtime but also planned downtime resulting from database upgrades, migrations, and consolidation.Thursday, December 1319:00 CET / 6 pm. UK   

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• Windows Server or Linux for final project

  - by user1433490

  A few weeks ago I came up with an idea to develop a mobile app which will direct students in my university to the nearest printer availiable. The whole thing is part of my final project. The Android based app will need to perform the following tasks: The user's location in the campus is sent to the server. Assume this part works just fine. The server sends an SNMP request to the printers in the user's vicinity. I'll probably use PHP or Python for that part. The data requested by SNMP is processed and sent back to the client My question concerns the server. The university's IT manager offered me a designated server for development, which sounds great. Now I need to choose which OS I want installed on the server - Windows server or Linux (don't know which versions). I don't have any server programming/operating experince, but generally speaking I feel more comfortable in Windows enviroment (just because that has always been my OS). I don't have much time for learning a new OS, but when does it make sense generally to host or develop server side applications on a Windows environment versus a Linux environment?

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• Upgrade from 10.04 to 10.10 on netbook: now or later?

  - by jbatista

  I began with installing 9.04 in a netbook (Asus EeePC 1000H), upgraded to 9.10 and have now Lucid Lynx 10.04 (LTS). Most things tested run pretty good, with the most notable exception being wireless network due to the hardware which I first tested after the last major upgrade and a few times before giving up (failed to maintain connection to WPA2 networks). Other nuisances are not as important (e.g. some hotkeys work, a couple of them don't), but given that most everything works I'm concerned with doing an upgrade to find most things have been broken and I have to go back and dig up on how to get it to work... Once in a while, I look up for some posts elsewhere to read up on problems and to find out if they're tame enough to justify an upgrade to 10.10. I'm not in a rush, but I'm not interested in being too left behind some time from now that an upgrade becomes too costly or downright impossible (many things formatted too differently). I'm not even sure if it's possible to "easily" upgrade from LTS to LTS release... Therefore I ask if it's (in principle) possible to skip releases and only do a major upgrade much later on. For example, is it possible (or advisable) to do an upgrade only when the next LTS comes out (a couple of years from now)? Or is it preferable not to skip releases at all?

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• Looking for some advice on the next steps to take [closed]

  - by mopsyd

  I am looking for some advice on the next step to take in development of my programming skills. I was directed here when asking this question on Stack Overflow. What I know already Have a solid grasp of xhtml, xml, php, javascript, MySQL, actionscript. Have a working knowledge of vb, and have a slight grasp of java from tinkering with a minecraft server. Some brief exposure to the Unreal Engine in college. Some skills with sql server, ms sql, office integration, etc. Also some knowledge of Asterix and PBX/VOIP. Been coding off and on since the age of 8 but I have no computer science education aside from what I have taught myself or learned from work/freelance. I work in OSX mostly, but can use/troubleshoot windows and ubuntu fluently also. Decent with both UNIX and DOS CLI. What I'm considering I'm looking to learn a scripting language to build web apps, help streamline my home server that I am building and run shell scripts. Being able to help code games later is a big plus. My Question Between java, ruby, perl, and python, which would be the best investment of my time considering what I already know and what direction I would like to take my skillset? What are good resources for your suggested direction? Thanks in advance.

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• Desktop runs very slick, animations are all fast and flawless. Moving windows around, however, is very laggy. Why?

  - by Muu

  This isn't a question about Ubuntu being laggy in general - not at all, in fact, it's very slick and fast for me. Clicking the "Workspace Switcher" in the dock performs the animation immediately and very smoothly. Switching between workspaces with the arrow keys - again, flawlessly. My computer has a resolution of 2560x1440 on a 27" display (no, not an Apple product - though my monitor has the same panel that Apple use in their cinema displays). It's powered by an Nvidia GeForce GTX 470 - easily enough to handle it - and an Intel i3. Hardware is not the issue. I am running Ubuntu 11.10 (upgraded from 11.04). I had the same issue in 11.04. I'm running the "NVIDIA accelerated graphics driver (post-release updates) (version current-updates)" from the additional drivers dialogue. Two drivers have been suggested to me via that dialogue and I've tried both - same effect with each. The driver is "activated and currently in use". Any other information required, let me know and I'll post it. I'm a programmer who works with Linux daily (both as a job and as an interest) so technical instructions are fine. I've noticed that Compiz uses a lot of CPU when moving windows around and it's memory usage is relatively high (though possibly expected for Compiz): 1671 user 20 0 478m 286m 33m S 1 7.3 12:44.05 compiz And one more thing - occasionally moving windows around is fast. But it only happens when all applications are closed, and even then it sometimes doesn't. Something must be interfering, but what? I'll try and find out but in the meantime, any suggestions are much appreciated :-)

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• I want to make "stuff" on the web, is a BsC. in Computers necessary/overkill? [on hold]

  - by notypist

  I'm 24 and have a lead role in a major news outlet in my country, with a good pay and public image in the horizon. I hold a job that was previously held by people with 15-20 years of experience and considered one of the top 5 news anchors in my country. My passion though, is computers. The web, to be precise. I was a problogger at a very young age. I hacked my way through CSS and some basic HTML and PHP. But I want to move forward - I want to CREATE not just STRUCTURE things. Giving up the present (and especially the seemingly promising future) in my current industry is hard, my friends raise their eyebrows... I'm considering a BsC. in computer Engineering - but my stats are short of getting into a good university for this discipline. Plus, I'm not the best with math - although I do exceptionally well in statistics and other numbers that are more applicable to real life. I tried learning PHP through online websites, but that just "doesn't cut it" for me. Nope. So what are my options here? if I don't want to build hardware or and deal with overly-complex algorithmic but would like, for example - to build a well functioning iPhone and iPad app, or a SaaS, a startup...do I have to go the BsC. route? I don't see any option to get an "official" education in strictly "web" concepts and languages.. Note: I'm well off financially, so I'm doing this more to be able to create stuff, rather than get a job in a corporations. Although if I land somewhere high, that might be an option. But my main concern is getting the tools.

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• Good quality Secure Software Development Training [closed]

  - by Patrick

  Just had my annual appraisal and found out my company is willing to pay for training and exams etc! Woohoo (they kept that one quiet). I'm interested in doing a course on secure development techniques. Has anyone got any suggestions for good quality distance learning courses in secure development (I could probably get a couple of days off to attend a conference/ course if required)? We're mostly an MS .Net house but I have no particular allegiance to MS or any other programming language (though, obviously, C++ is the best language in the world). I have 12 years development experience working in (what are now) PCI:DSS environments, including designing and developing a key management system and I have some knowledge of basic attacks (XSS, injection etc). I would prefer a hard course I struggle with to a basic course I learn 3 things from (but hopefully get something right at my level). A quick google found these two course which look good: http://www.sans.org/course/secure-coding-net-developing-defensible-applications https://www.isc2.org/csslpedu/default.aspx I don't really know how to choose between them, and finding other courses isn't going to make that job any easier, so I thought I'd ask those who know. EDIT : Hmm, care to share the reason for your down vote, will help me learn how to use the site better...

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• What kind of projects are suited as a portfolio? [on hold]

  - by Asyx

  I was thinking about finishing up some hobby projects I used myself or am planing to use myself but I'm not sure if a future employer might be put off by them. For example, if I decided to create a custom website for an online (gaming, maybe) community instead of using an existing CMS, is it a good idea to provide a link to said community website or should I just put up the CMS and pretend like nobody actually uses it? Also, what about very specific things? I like linguistics and constructing languages. Obviously nobody wants to come up with 1000s of words so people usually use word generators or software to emulate sound shift or software to organise everything and produce dictionaries and such. Would such a project be too specific and too abstract for a portfolio or is the "he did programming work simply for enjoyment and his hobby and not just for money or grades" thing more important? It's quite an abstract hobby and most people don't even know that it's a thing and think the languages you hear in Game of Thrones, Avatar or Star Trek are just gibberish. Explaining such things to people is a pain to begin with especially if said people speak no other language. Would such things throw an employer off or is the content itself completely irrelevant? Thanks. Also, if this is not fitting for the programmers stackexchange, then please, don't close the thread right away but tell me where else to go because I got here though a closed question from stackoverflow. Thanks.

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• Ubuntu 11.10 Random reboots how to find root cause?

  - by Indigo42

  All, This issue started with 11.04, I upgraded to 11.10 this week in hopes it would correct it, but after a few days it happened again.. A few times a day, randomly, my monitors will go black and the machine will come back in the post screen and boot up again. Sometimes it boots up properly, sometimes it boots to disk scan (I understand why...the machine just died with a bunch of stuff open) and sometimes it takes several cycles of this to come up. I connected to the system with my laptop and tailed dmesg, syslog, kern.log, and Xorg.0.log. I also ran a cat /proc/kmesg. Nothing is showing up in any of these log files when it happens..it's just like someone has pulled the plug. I just got through running 4 hours of the memory test with no errors. I have a AMD Phenom 9850 Quad-Core Processor and Nvida 9500GT graphics card. This system has been stable for like 4 years. I'm thinking it might be a hardware problem, but how do I find out? Thanks,

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• When and how does one become a good programmer these days? [closed]

  - by YoungMoney

  I mean, good enough to make software people want and get paid for it. Maybe even good enough to launch a company or something. I'm also concerned that I'm not applying the finer points of my algorithms/data structures/software design knowledge. Background: I'm 20 and have been struggling with programming for about two years now, trying to become a software engineer. I started with a few university courses that I did quite poorly in. I learned how to make websites with HTML/JavaScript and PHP/MySQL, but feel like I know very relevant theory for making good databases - how does something like Facebook serve hundreds of millions of people? What would be smart ways to store data? I don't know. Now I'm doing some android application development, but again I have no idea about good Java design theory (I use static variables like they're going out of fashion) and feel more like I'm gluing stuff together and letting Eclipse slowly autocomplete my project. In short, I'm not sure if I'm becoming a legitimate software developer or just "doing what's cool". At least I've taken some data structures and Algorithms courses and plan to take more in the next years. But I'm having a really tough time applying this stuff to my fun little apps that I'm building. Every language higher level than C++ seems to have its own quicksort function already built-in, for example. Similarly, I can't remember ever needing to implement a linked-list, heap, binary tree, or or worry about pointers and memory management. But maybe this is a good thing so that I focus on other things? I'm not too sure what those other things are though. Hopefully something more than building another photo sharing app. Anyways that's it for me, I look forward to your responses!

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• I've failed at PHP several times. Is Ruby the Cure? [closed]

  - by saltcod

  Extremely, extremely subjective question here, but its something I've been struggling with for quite a while. I've seriously tried to become a reasonable PHP coder for the past several years. But I've really failed every time. I hate to describe myself as a beginner, b/c I've been designing websites (using WordPress, Drupal, etc) for years, but still I just can't seem get better at programming. Could it be that I have some kind of allergy to PHP? I went through Chris Pine's awesome into to Ruby about a week ago (for about the fifth time), and though it did all all seem much clearer to me than PHP, I wondered if I was just switching languages to find an easy way out? The things I struggle with in PHP all seem elementary—when to use a function, how to return database queries in foreach/while statements, when to turn those queries into reusable functions, adding arguments to functions, etc, etc. And all the OOP stuff that I keep seeing these days just files over my head. I guess my question(s) are: Am I going about learning how to program in the wrong way? Do I have some aversion to PHP that's preventing me from catch on? If I keep pushing at Ruby/Rails, will it just eventually 'click'. Or, the one I fear, am I just unlikely to ever be a programmer? Honesty appreciated. Terry

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• Separate update and render

  - by NSAddict

  I'm programming a simple Snake in Java. I'm a complete newbie when it comes to Java and Game Developing, so please bear with me ;) Until now, I have been using a UI thread, as well as a update-thread. The update thread just set the position, set the GameObjects, and so on. I didn't think much of concurrency, but now I've come to a problem. I wanted to modify the ArrayList<GameObject>, but it throws a java.util.ConcurrentModificationException. With a little research I found out that this happens because the two threads are trying to access the variables at the same time. But I didn't really find a way to prevent this. I thought about copying the array and swapping them out when the rendering is finished, but I would have to deep-copy them, which isn't really the best solution in my opinion. It probably eats up more CPU resources than a single-threaded game. Are there any other ways to prevent this? Thanks a lot for your help!

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• Arguments? Path filing wrong? [on hold]

  - by user3034947

  I'm working through the Java SE 7 programming activity and I'm having trouble sort of understanding how arguments work. Here's the code: public class CopyFileTree implements FileVisitor<Path> { private Path source; private Path target; public CopyFileTree(Path source, Path target) { this.source = source; this.target = target; } @Override public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) { // Your code goes here Path newdir = target.resolve(source.relativize(dir)); try { Files.copy(dir, newdir); } catch (FileAlreadyExistsException x) { // ignore } catch (IOException x) { System.err.format("Unable to create: %s: %s%n", newdir, x); return SKIP_SUBTREE; } return CONTINUE; } @Override public FileVisitResult visitFile(Path file, BasicFileAttributes attrs ) { // Your code goes here Path newdir = target.resolve(source.relativize(file)); try { Files.copy(file, newdir, REPLACE_EXISTING); } catch (IOException x) { System.err.format("Unable to copy: %s: %s%n", source, x); } return CONTINUE; } @Override public FileVisitResult postVisitDirectory(Path dir, IOException exc ) { return CONTINUE; } @Override public FileVisitResult visitFileFailed(Path file, IOException exc ) { if (exc instanceof FileSystemLoopException) { System.err.println("cycle detected: " + file); } else { System.err.format("Unable to copy: %s: %s%n", file, exc); } return CONTINUE; } } It says to test this I need to enter arguments in properties of the project which I did? Can someone clarity what I'm doing wrong?

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• MySQL December Webinars

  - by Bertrand Matthelié

  We'll be running 3 webinars next week and hope many of you will be able to join us: MySQL Replication: Simplifying Scaling and HA with GTIDs Wednesday, December 12, at 15.00 Central European TimeJoin the MySQL replication developers for a deep dive into the design and implementation of Global Transaction Identifiers (GTIDs) and how they enable users to simplify MySQL scaling and HA. GTIDs are one of the most significant new replication capabilities in MySQL 5.6, making it simple to track and compare replication progress between the master and slave servers. Register Now MySQL 5.6: Building the Next Generation of Web/Cloud/SaaS/Embedded Applications and Services Thursday, December 13, at 9.00 am Pacific Time As the world's most popular web database, MySQL has quickly become the leading cloud database, with most providers offering MySQL-based services. Indeed, built to deliver web-based applications and to scale out, MySQL's architecture and features make the database a great fit to deliver cloud-based applications. In this webinar we will focus on the improvements in MySQL 5.6 performance, scalability, and availability designed to enable DBA and developer agility in building the next generation of web-based applications. Register Now Getting the Best MySQL Performance in Your Products: Part IV, Partitioning Friday, December 14, at 9.00 am Pacific Time We're adding Partitioning to our extremely popular "Getting the Best MySQL Performance in Your Products" webinar series. Partitioning can greatly increase the performance of your queries, especially when doing full table scans over large tables. Partitioning is also an excellent way to manage very large tables. It's one of the best ways to build higher performance into your product's embedded or bundled MySQL, and particularly for hardware-constrained appliances and devices. Register Now We have live Q&A during all webinars so you'll get the opportunity to ask your questions!

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• The very beggining research for web developing

  - by stckxchng

  It is a general question to ask what would be the easiest way to start a website, however every one need a little boost up at the begging. There are content management systems, or admin panels, or some people have developed their own systems and many more diffirent things people use at the very beggining. Among others my way was looking for a very lightweight cms and develop a system on to it, unfortunately I couldn't find a good system to develop on, for example I decided to develop on snewscms (the lightest weight cms) but it is really hard to manage since it is not developed with object oriented programming standarts and I thought it would be a mistake to continue developing on to such a system. On the other hand starting to code from the core would be weak about security, and using a massive cms like joomla or drupal will not be good since there will be many things that are unused and moreover I will not feel well when I don't know what I am controlling since it is not easy to know every part of them. What I am asking is what would you do if you had lost all the files you are currently using today, where would you start from? What tool would you use? Or is there a lightweight and well coded tool to get start with?

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• Moving soon, fiancee has new job: how to transition?

  - by Anonymous

  I've found myself in a sort of conundrum lately and I figured Stack Overflow would be the place to ask this question. I normally post under my personal account here, but I'm writing in anonymously this time so as to make sure my co-workers don't find out too early that I'll be leaving them behind in a few months. My fiancee just landed a great software development job at a very large, stable company. She'll be starting after she graduates and just after we get married (May to June-ish). Her compensation and benefits package will be more than enough to take care of both of us, so I agreed to step down from my current position so we could move to a larger city with more opportunities. I'll probably take a few weeks off to decompress, but I don't want to stay unemployed very long. Since there will be less pressure on me to bring home a second income though, we're not as adverse to risk as we normally would be. I'm currently debating whether to eventually seek employment at a small company, a larger company, do contract work, or do something else entirely. I haven't been in the software development business long (2-3 years plus some small personal projects), but I've seen what things can be like at a startup (my first job) and at a more established, mid-sized business (my current job). Most importantly what I'm looking for out of a new employment opportunity is challenge and variety. Does this situation describe anyone on SO? If so, what did you do/what are you doing? How is it working out for you? Programming is a pleasure as well as a career skill for me, so I want to make sure it stays that way. Thanks to all in advance for any responses.

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• Working hours for a newbie

  - by martani_net

  This is not a very related software / hardware question, but it's too related to the Tech world. I started a work 3 months before, and I am about to finish this week, and my boss asked me to do a planning of what I've done so far, I think this is totally ok, but he is asking for what I did each day with the hours I spent in these days. This is a sample of what I sent him M T W T F week 29/06 to 03/07 compréhension et analyse du problématique * * architecture de l'application * * * which translates to first task, I spent Monday + Tuesday on, and the last W, T, and Friday. What he is asking for, is what I've done in each day, with the timing I spent on (obviously, I don't think I remember, and because for a programmer, there are no sequence tasks, I mean I change code in a class, then change it in another to fit with the new one and so far) So my question is: is what he asking normal? and if so how can I detail the planning for the 3 months. [update] I used the email account we use to test our software with the extern servers, and I got a good view of what I was doing in every day :), a generic view but it helped too much (PS: The boss doesn't know anything about programming, for him, it's like writing lines and get results back nothing more )

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• Why most people change from being a contractor to full time at my companies, but not the other way around?

  - by ????

  I have seen most people changed from being a contractor to being a full time employee, but not the other way around. And that happened in startups that had maybe 20% chance of IPO or being acquired, and another that had maybe a 50% chance. As far as I know, the rate (even for a 3 year experience graphics designer, or a programmer), can be $75 to $80 an hour. While a programmer with 15 years of experience may get $120,000 per year. So, the programmer with 15 years of programming experience earns $10,000 per month. At the same time, the programmer with 3 year of experience or the graphics designer will get $14,000 per month ($80 x 22 days x 8 hours). I know I have to buy my own insurance, but I can't imagine buying those for $4,000 each month... maybe $200, $300 at most. I probably need to pay Social Security (FICA) both way (myself and as self-employed = $210 x 2), but still, each month there will be extra $3,000 of income. So is the above calculation correct? But most often, I do see contractors wanting or becoming full time, but not full time employees becoming a contractor. Does somebody know what the reason is?

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• What is the most effective approach to learn an unfamiliar complex program? [closed]

  - by bdroc

  Possible Duplicate: How do you dive into large code bases? I have quite a bit of experience with different programming languages and writing small and functional programs for a variety of purposes. My coding skills aren't what I have a problem with. In fact, I've written a decent web application from scratch for my startup. However, I have trouble jumping into unfamiliar applications. What's the most effective way to approach learning a new program's structure and/or architecture so that I can start attacking the code effectively? Are there useful tools for their respective languages (Python and Java are my two primary languages)? Should I be starting with just looking at function names or documentation? How do you veterans approach this problem? I find this has to be with minimal help from coworkers or contributors who are already familiar with the application and have better things to do than help me. I'd love to practice this skill in an open source project so any suggestions for starting points (maybe mildly complex) would be great too!

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• I failed FizzBuzz, would you hire me? [closed]

  - by ja_programmer

  I'm a developer with a CS degree and have work experience doing development in a number of languages for almost 3 years. Today had an interview (2nd interview) with a panel of people. Overall it went quite well, I prepared for most of the questions and felt ready for anything. At the end of the interview, they gave me ONE programming question...a problem like FizzBuzz (without the print the number part). I believe I made too many mistakes and thus have "failed" it. Is all hope lost for me? Here is my code: void FizzBuzz() { for(int i = 0; i <= 100; i++) { bool isThree = i % 3; bool isFive = i % 5; if (isThree) { print "Fizz\n"; } else if(isFive) { print "Buzz\n"; } else { print "FizzBuzz\n"; } } } As you can see I messed up the bools which should have the syntax i % 3 == 0; If I'm remembering the question right I also put an else instead of an elseif with isThree && isFive. I was quite stressed, but that's no excuse for missing a simple problem. So the question is, if my work history and personality fit with the job and this is the only code you've seen, would you hire me?

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• How do I fix the Dash search not being able to find "additional drivers" nor "update"?

  - by Dronz

  I am a fairly new user of Ubuntu, and currently have two 12.04 installations, one of which seems to work ok but I have two problems. The problem I'm asking about in this question, is that the Dash search seems unable to find things, such as "additional drivers" or "update". On my working machine, searching for "additional drivers" there finds an icon for the driver program, but on the problem machine, it gives "Sorry, there is nothing that matches your search." Dash also only shows sections for Recent Files, and Downloads, on that machine. The account I'm running is an admin account. This installation also has a stuck Ubuntu Software Center (it loads and hangs) as in threads like this one. I don't think I've done very much to this computer that could cause a problem. I installed g++ and Wt to do some programming. The biggest change I can remember is uninstalling the newfangled scrollbars with "sudo apt-get remove liboverlay-scrollbar3-0.2-0", but re-installing that module seems to have no effect on these issues. Anyone have any ideas? Both machines have been updated with all recommended updates and say they are up to date.

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• Evaluating this huge .... thing? [closed]

  - by Shark

  I'll just leave this here: superTiled = ((((gctUINT32) (hardware->chipMinorFeatures)) >> (0 ? 12:12) & ((gctUINT32) ((((1 ? 12:12) - (0 ? 12:12) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:12) - (0 ? 12:12) + 1)))))) == (0x1 & ((gctUINT32) ((((1 ? 12:12) - (0 ? 12:12) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:12) - (0 ? 12:12) + 1))))))); If you can break it down into 'steps' or a single numeric value - props to you :) I see that this is generated/ unwrapped macros code but .... can't really wrap around it atm. The first person that breaks this down / simplifies it a bit gets to know which driver i found it in. Cheers :)

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• Solaris OS?????????? (??????·SIer????!??????)

  - by OTN-J Master

  Solaris11???????????????2011?11??????OS????????11.1??????????2012?11???????????????OTN?Solaris11?????????????????????????????????????OTN?????????????????????????????????????????????????????????????????????IT?????????Solaris??????????????????????????????????????????Solaris???????Solaris 11?????????5???????????Solaris 11??????????????????????????????????????????????????????????????????????????????????????????????????????????????????OS????????????????????????????????????????????????OS???????????????Sun???????Solaris???????????????????????Solaris????????????????SPARC?????????????????????????????????????????????Solaris??????????????????????????????????????????Solaris???????????????????????????Oracle Database?????????????Oracle Database??????????????????????????????????????????????????????????????DB???????????Solaris??????????????????????????????????????(Solaris11.1??????????????????)???????????????????????????????????????????? ??????????????OS???????????????????? Solaris ?????????????????????????????? ?????????????????????????????????????????? Solaris????????????????????????? ???Solaris????????????Solaris???????????????????? ???????OS??????????????Solaris???????????????????1???????????????????10??????????????????????????????????????????????(??????????????????????????????????)Oracle Solaris 11: ????????·????????????????????????????·???????Oracle Solaris 11?????·?????????????????????????????????????Oracle Solaris 11????????????IT??????????????????????????????????????????????????????????????????????????????Solaris??????????????Solaris 11????????????????????????????????????Solaris 11????????????Oracle Solaris 11 ??????·????????10???????????????????????????????????????????????OTN???????????????Solaris 11?????????????????????????????????????????????????????(??????"????”??!)IBM AIX?Oracle Solaris???????·?????·???HP-UX/Oracle Solaris???????????HP-UX?Oracle Solaris 11????HP-UX ?? Oracle Solaris ???????Red Hat Enterprise Linux?Oracle Solaris 11???Red Hat Enterprise Linux??Oracle Solaris??????? ??????????????????????Oracle Solaris????????????????Solaris????????????????????????????????????????????????????????????????????”?????????????????”?????????????????????????????????????????????????????????????Solaris 11.1??? ???????????????????????????????????Solaris 11???????????????????????????????????????Solaris 11.1?????????????????????????????????????????????????·?????????x86??SPARC?????????????????x86?????????????????????????Solaris 11??????????????????????????????????????OTN?????????????????????????????????????????????????????????????????????DVD??????????????????????????????????????????????????????????(??????????????) ?????????11?14?(?)?????????????????????Oracle DBA & Developer Day??????????????Oracle Solaris?Oracle Hardware???????????????????Oracle Solaris 11????????????????Solaris 11???????????????????????????11?14?(?)?? 15:50-16:50 ?? 17:00-18:00??????????: ?????Oracle Solaris 11!Solaris???????????????????????100?????????????????????Solaris Zones?DTrace?ZFS????????????Solaris 11?100?????????????????>> ????????????

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• ?????Exadata????

  - by Liu Maclean(???)

  ??check Exadata Image & OS versions , GI & DB patches sundiag exacheck cellserv ==> imageinfo dbhost ==> /usr/local/bin/imagehistory Also check the version of the switch. Login to Switch and execute the following command [root@myswitch-1 sbin]# version [root@dmorlsw-ib2 sbin]# cd /usr/local/bin [root@dmorlsw-ib2 bin]# ls -lrt version -rwxr-xr-x 1 root root 20356 Apr 4 2011 version Output will look as below. [root@dmorlsw-ib2 ~]# version SUN DCS 36p version: 1.3.3-2 Build time: Apr 4 2011 11:15:19 SP board info: Manufacturing Date: 2009.05.05 Serial Number: "NCD3X0178" Hardware Revision: 0x0006 Firmware Revision: 0x0102 BIOS version: NOW1R112 BIOS date: 04/24/2009 ib8# cat /sys/class/infiniband/is4_0/fw_ver 7.2.300 ib8 # cat /sys/class/dmi/id/bios_version NOW1R112 ib8 # nm2version NM2-36p version: 1.0.1-1 Build time: Sep 14 2009 12:52:51 ComExpress info: Manufacturing Date: 2009.08.19 Serial Number: Hardware Revision: 0x0006 Firmware Revision: 0x0102 { case `uname` in Linux ) ILOM="/usr/bin/ipmitool sunoem cli" ;; SunOS ) ILOM="/opt/ipmitool/bin/ipmitool sunoem cli" ;; esac ; ImageInfo="/opt/oracle.cellos/imageinfo" ; uname -srm ; head -1 /etc/*release ; uptime | cut -d, -f1 ; $ILOM "show /SP system_description system_identifier" | grep = ; $ImageInfo -activated -node -status -ver | grep -v ^$ ; } | tee /tmp/ExaInfo.log $GRID_HOME/OPatch/opatch lsinv -all -oh $GRID_HOME | tee /tmp/OPatchInv.log $ORACLE_HOME/OPatch/opatch lsinv -all | tee -a /tmp/OPatchInv.log cat /tmp/ExaInfo.log Linux 2.6.18-128.1.16.0.1.el5 x86_64 ==> /etc/enterprise-release <== Enterprise Linux Enterprise Linux Server release 5.3 (Carthage) ==> /etc/redhat-release <== Enterprise Linux Enterprise Linux Server release 5.3 (Carthage) 20:37:56 up 458 days system_description = SUN FIRE X4170 SERVER, ILOM v3.0.6.10.b, r52264 system_identifier = Sun Oracle Database Machine Active image version: 11.2.1.2.3 Active image activated: XXXX-XX-XX 12:27:12 +0800 Active image status: success Active node type: COMPUTE Inactive image version: undefined FileName: OPatchInv.log ---------------- ... Oracle Home       : /u01/app/11.2.0/grid Central Inventory : /u01/app/oraInventory   from           : /etc/oraInst.loc OPatch version    : 11.2.0.1.2 OUI version       : 11.2.0.1.0 OUI location      : /u01/app/11.2.0/grid/oui ... -------------------------------------------------------------------------------- List of Oracle Homes:   Name                                       Location   Ora11g_gridinfrahome1         /u01/app/11.2.0/grid   OraDb11g_home1                  /u01/app/oracle/product/11.2.0/dbhome_1 -------------------------------------------------------------------------------- Installed Top-level Products (1): Oracle Grid Infrastructure                                           11.2.0.1.0 ... Interim patches (2) : Patch  9524394      : applied on Thu Jun 03 20:46:05 CST 2010 ... {TRACKING BUG FOR 11.2.0.1 DB MACHINE BUNDLE PATCH 3} Patch  9455587      : applied on Fri Apr 02 18:27:47 CST 2010 ... {MERGE REQUEST ON TOP OF 11.2.0.1.0 FOR BUGS 8483425 8667622 8702731 8730804} Rac system comprising of multiple nodes  Local node = dbserv01  Remote node = dbserv02  Remote node = dbserv03  Remote node = dbserv04 -------------------------------------------------------------------------------- OPatch succeeded. ... Oracle Home       : /u01/app/oracle/product/11.2.0/dbhome_1 ... Oracle Database 11g                                                  11.2.0.1.0 ... Interim patches (5) : Patch  8888434      : applied on Sat Jan 08 00:27:33 CST 2011 ... {AIX-ASM-CF: LMHB TERMINATE INSTANCE WHEN OFFLINE ONE FAILGROUP IN ASM DG} Patch  8730312      : applied on Thu Jun 03 21:30:03 CST 2010 ... {FWD MERGE FOR BASE BUG 8715387 FOR 12G} Patch  9502717      : applied on Thu Jun 03 21:25:54 CST 2010 ... {LMS HIT ORA-600 [KJBLDRMNEXTPKEY:SEEN] AND CRASHED THE INSTANCE} { + same 2 as GI above} ?? cell server Cache Policy cell08# MegaCli64 -LDInfo -Lall -aALL | grep 'Current Cache Policy' Current Cache Policy: WriteThrough, ReadAheadNone, Direct, No Write Cache if Bad BBU cell09# MegaCli64 -LDInfo -Lall -aALL | grep 'Current Cache Policy' Current Cache Policy: WriteBack, ReadAheadNone, Direct, No Write Cache if Bad BBU Default Cache Policy: WriteBack, ReadAheadNone, Direct, No Write Cache if Bad BBU Current Cache Policy: WriteThrough, ReadAheadNone, Direct, No Write Cache if Bad BBU Cache policy is in WB Would recommend proactive  battery repalcement. Example : a. /opt/MegaRAID/MegaCli/MegaCli64 -LDGetProp  -Cache -LALL -aALL ####( Will list the cache policy) b. /opt/MegaRAID/MegaCli/MegaCli64 -LDSetProp  -WB  -LALL -aALL ####( Will try to change teh policy from xx to WB)     So policy Change to WB will not come into effect immediately     Set Write Policy to WriteBack on Adapter 0, VD 0 (target id: 0) success     Battery capacity is below the threshold value ??cell BBU??????: cell08# /opt/MegaRAID/MegaCli/MegaCli64 -AdpBbuCmd -GetBbuStatus -a0 BBU status for Adapter: 0 BatteryType: iBBU Voltage: 4061 mV Current: 0 mA Temperature: 36 C BBU Firmware Status: Charging Status : None Voltage : OK Temperature : OK Learn Cycle Requested : No Learn Cycle Active : No Learn Cycle Status : OK Learn Cycle Timeout : No I2c Errors Detected : No Battery Pack Missing : No Battery Replacement required : No Remaining Capacity Low : Yes Periodic Learn Required : No Battery state: GasGuageStatus: Fully Discharged : No Fully Charged : Yes Discharging : Yes Initialized : Yes Remaining Time Alarm : No Remaining Capacity Alarm: No Discharge Terminated : No Over Temperature : No Charging Terminated : No Over Charged : No Relative State of Charge: 99 % Charger System State: 49168 Charger System Ctrl: 0 Charging current: 0 mA Absolute state of charge: 21 % Max Error: 2 % Exit Code: 0x00 ????BBU ??: dcli -g ~/cell_group -l root -t '{ uname -srm ; head -1 /etc/*release ; uptime | cut -d, -f1 ; imagehistory ; ipmitool sunoem cli "show /SP system_description system_identifier" | grep = ; ipmitool sunoem cli "show /SP/policy FLASH_ACCELERATOR_CARD_INSTALLED /opt/MegaRAID/MegaCli/MegaCli64 -AdpBbuCmd -GetBbuStatus -a0 | egrep -i 'BBU|Battery|Charge:|Fully|Low|Learn' ; }' | tee /tmp/ExaInfo.log Target cells: ['cellserv01', 'cellserv02', 'cellserv03', 'cellserv04', 'cellserv05', 'cellserv06', 'cellserv07'] cellserv01: Linux 2.6.18-128.1.16.0.1.el5 x86_64 cellserv01: ==> /etc/enterprise-release <== cellserv01: Enterprise Linux Enterprise Linux Server release 5.3 (Carthage) cellserv01: cellserv01: ==> /etc/redhat-release <== cellserv01: Enterprise Linux Enterprise Linux Server release 5.3 (Carthage) cellserv01: 01:17:39 up 635 days cellserv01: Version : 11.2.1.2.1 cellserv01: Image activation date : 2011-03-25 11:59:34 -0800 cellserv01: Imaging mode : fresh cellserv01: Imaging status : success cellserv01: cellserv01: Version : 11.2.1.2.3 cellserv01: Image activation date : 2011-04-13 12:15:46 +0800 cellserv01: Imaging mode : patch cellserv01: Imaging status : success cellserv01: cellserv01: Version : 11.2.1.2.6 cellserv01: Image activation date : 2011-05-27 23:08:22 +0800 cellserv01: Imaging mode : patch cellserv01: Imaging status : success cellserv01: cellserv01: system_description = SUN FIRE X4275 SERVER, ILOM v3.0.6.10.b, r52264 cellserv01: system_identifier = Sun Oracle Database Machine cellserv01: Connected. Use ^D to exit. cellserv01: -> show /SP/policy FLASH_ACCELERATOR_CARD_INSTALLED cellserv01: show: No matching properties found. cellserv01: cellserv01: -> Session closed cellserv01: Disconnected cellserv01: BBU status for Adapter: 0 cellserv01: BatteryType: iBBU cellserv01: BBU Firmware Status: cellserv01: Learn Cycle Requested : No cellserv01: Learn Cycle Active : No cellserv01: Learn Cycle Status : OK cellserv01: Learn Cycle Timeout : No cellserv01: Battery Pack Missing : No cellserv01: Battery Replacement required : No cellserv01: Remaining Capacity Low : Yes cellserv01: Periodic Learn Required : No cellserv01: Battery state: cellserv01: Fully Discharged : No cellserv01: Fully Charged : Yes cellserv01: Relative State of Charge: 99 % cellserv01: Absolute state of charge: 21 % dcli -l root -g /root/all_group '/opt/MegaRAID/MegAaCli/MegaCli64 -AdpBbuCmd -a0' > BBU.out check ipmi: dcli -g ~/cell_group -l root -t '{ > ipmitool sunoem cli "show /SP/policy FLASH_ACCELERATOR_CARD_INSTALLED" | grep = ; MegaCli64 -LDInfo -Lall -aALL | grep 'Current Cache Policy' ; }' | tee /tmp/ExaCells.log

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• ???????????! Java EE 6???????????????/???????!!????UFJ????????????????????????Java EE 6??????JavaOne Tokyo 2012?????|WebLogic Channel|??????

  - by ???02

  ??UFJ?????????????????????????IT??????? ?????????UFJ?????????/????????2007?7????????????JavaEE5?????????Java EE??????????????????????2012?4???????JavaOne Tokyo 2012??????????Java EE 6?????????????????????????Java EE 6???????????????????????????????????????????Java EE 6???????"??????????????"???????????????????????????????????(???)Java EE 6?????????·?????????????????UFJ??????????????? IT??????? ????????　???????????????????Java EE????????????????????J2EE 1.4??????????????????????????????(EoD:Ease of Development)?????????????????????2006??????Java EE 5?????????·??????????????????????EoD????????????????Java EE 5????????????????????????????Java Servlet?JavaServer Faces(JSF)?????????????API?EoD????????????Dependency Injection(DI???????)?Aspect Oriented Programming(AOP???????????????)???????????????RESTful Web?????API????????????????　????????????????2009?12?????????????Java EE 6??????Java EE 6???????????????·??????????????????????????????????????????????????·??????????????????????????????????????????????????????Java EE 6????????????????????????Java EE??????Java EE 6????????????　Java EE 6????1?????????????????????????????????????Java EE 6???JSF??????1.2??2.0??????????????JSF 1.2?????????????????????????????????????????????????????????????????????????????????JSF 2.0??????????????????????????????????(???)????????Ajax??????????????????????????????????????????????????????JSF????????????????UI?????????????????(?????)?????HTML???JSF???????????HTML?JSF????????????(?)???????????????JSF 2.0????????????　???EJB??????3.0??3.1??????????EJB 3.1???????EoD???????????????????????????????????????Singleton??????????Session Bean????????????Java Persistence API(JPA)??????1.0??2.0????????????????????(?????)??????????????　???????Java EE 6???????API???/???????????????Java EE 6?????"?????"???????Contexts and Dependency Injection(CDI) 1.0?????????JSF?EJB?JPA???????????DI?????????????????????Java EE 5???DI????????Java EE?????????????????????????????CDI??????????JavaBeans????DI???????????????????CDI??????????????????·?????????????1???????????????(???????)?????????????????????????????????·???????　??????????API?????1??????????Java API for RESTful Web Services(JAX-RS) 1.1?????????????????Java?RESTful Web????????????API?????????2???????1???SOAP????Web??????????????????????????????????????????????????1???Web??????????JavaScript????·???·???????????????????JAX-RS???　????????????????????Java EE 6?????????????????????????EoD???????:???????JSF?????????????????????????:?????????API?????????????????????????????????????API?Java EE????????????????????????????????EJB?????EAR???????????WAR??????????????????????????????:JNDI????????????(?????)????????????Java EE 6??????????????????????!　?????????????·???????????????????????????Java EE 6??????????Java EE 5????????????????????????????????????????????Web?????????????????????Model/View/Controller(MVC)???????????????????????????(1)HTML?JSF???????????(JSF 2.0???)(2)????UI????????????????(JSF 2.0???)(3)JavaScript+JAX-RS?????????MVC????(1)HTML?JSF???????????(JSF 2.0???)(2)????UI????????????????(JSF 2.0???)(3)JavaScript+JAX-RS?????　??????(3)JavaScript+JAX-RS???????????????????????????????????·??????????·???????????????????????????????????????????????????????????(???)??????　???????????3?????(3????)??????????????????3?????????????????????????????????????????????????????????????????????????????/????????????????????????????????????????????????????????·???????????????????????????????????????　??????????????3??????????????????????????????????????????????????????????????????????????????????????????Java EE 6???CDI????????????·???(JSF?EJB?JPA)??????????????????????EJB??????WAR?????????????????????????????????????????????????????????????????????????????????????????????????? Java EE 6??????????????　???????????????????????????????(?????·???????)???????Java EE 6???????????????????????????????????????????????·?????????????????????????Java EE 6???????????????????????API????????????????????????????????????·????????Java EE 6???????　????Java EE 6????????????????????????????????Java EE 6???????????????????????Java EE 6??????????????????????????????????????????????Java EE 6???????????????????????????

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