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  • Does the "security" repository provides anything not found in the "updates" repository?

    - by netvope
    For the limited number of package I looked at (e.g. apache), I found that the package version in the updates repository is always newer than or equal to the version available in the security repository (provided that they exist). This gives me the impression that all security patches posted to the security repository are also posted to the updates repository. If this is true, I can remove all <release_name>-security entries in my apt sources.list and the <release_name>-updates entries will still give me the security patches. This will speed up apt-get update quite a bit. The best documentation I can found regarding the repositories is on the community help page "Important Security Updates (raring-security)". Patches for security vulnerabilities in Ubuntu packages. They are managed by the Ubuntu Security Team and are designed to change the behavior of the package as little as possible -- in fact, the minimum required to resolve the security problem. As a result, they tend to be very low-risk to apply and all users are urged to apply security updates. "Recommended Updates (raring-updates)". Updates for serious bugs in Ubuntu packaging that do not affect the security of the system. However, it does not mention whether the updates repository also includes everything in the security repository. Can anyone confirm (or disconfirm) this?

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  • Oracle SOA Suite customer panel: Successful Application Integration & SOA Projects

    - by Simone Geib
    At the recent SOA Suite customer panel, Roger Brown from UNS Energy, Fabio Ravagni from Cencosud and Paras Jain from Cisco discussed their recent SOA Suite implementations, business drivers and challenges, architecture and lessons learned. Roger started by describing how UNS redesigned their internet portal to improve their customer experience and reduce manual steps in their business processes. Through the use of Oracle Service Bus, Oracle BPEL Process Manager and Oracle Business Activity Monitoring, they provided more self-service functionality, automated their business processes and increased the use of their web site by 12.98% for number of visits and 33.58% for average visit duration. The screenshot below shows the UNS architecture: > Next Fabio described the challenges Cencosud faced through continuous expansion of their business, different standards and levels of expertise and large volumes of information. By introducing Oracle SOA Suite, Oracle Data Integrator and Oracle Enterprise Repository, and with the help of Oracle Consulting, they significantly simplified their integration model, reduced their maintenance effort and increased their integration governance. The picture below shows the implemented solution with so far more than 400 services in production and more than 20 ongoing projects, which will make use of the new integration platform. > Last, but not least, Paras discussed the challenges the Webex division of Cisco faced with a highly manual service fulfillment process, multiple data sources and the resulting large room for errror and delay in customer time-to-service. Through a redesign of their order fulfillment process and the introduction of Oracle SOA Suite (see below), they significantly improved their SLAs, eliminated duplicate orders, provided higher visibility into the order process and aligned business and IT. For more information about Oracle OpenWorld SOA & BPM Session, please see the Focus on SOA and BPM document

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  • TRADACOMS Support in B2B

    - by Dheeraj Kumar
    TRADACOMS is an initial standard for EDI. Predominantly used in the retail sector of United Kingdom. This is similar to EDIFACT messaging system, involving ecs file for translation and validation of messages. The slight difference between EDIFACT and TRADACOMS is, 1. TRADACOMS is a simpler version than EDIFACT 2. There is no Functional Acknowledgment in TRADACOMS 3. Since it is just a business message to be sent to the trading partner, the various reference numbers at STX, BAT, MHD level need not be persisted in B2B as there is no Business logic gets derived out of this. Considering this, in AS11 B2B, this can be handled out of the box using Positional Flat file document plugin. Since STX, BAT segments which define the envelope details , and part of transaction, has to be sent from the back end application itself as there is no Document protocol parameters defined in B2B. These would include some of the identifiers like SenderCode, SenderName, RecipientCode, RecipientName, reference numbers. Additionally the batching in this case be achieved by sending all the messages of a batch in a single xml from backend application, containing total number of messages in Batch as part of EOB (Batch trailer )segment. In the case of inbound scenario, we can identify the document based on start position and end position of the incoming document. However, there is a plan to identify the incoming document based on Tradacom standard instead of start/end position. Please email to [email protected] if you need a working sample.

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  • What sort of attack URL is this?

    - by Asker
    I set up a website with my own custom PHP code. It appears that people from places like Ukraine are trying to hack it. They're trying a bunch of odd accesses, seemingly to detect what PHP files I've got. They've discovered that I have PHP files called mail.php and sendmail.php, for instance. They've tried a bunch of GET options like: http://mydomain.com/index.php?do=/user/register/ http://mydomain.com/index.php?app=core&module=global§ion=login http://mydomain.com/index.php?act=Login&CODE=00 I suppose these all pertain to something like LiveJournal? Here's what's odd, and the subject of my question. They're trying this URL: http://mydomain.com?3e3ea140 What kind of website is vulnerable to a 32-bit hex number?

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  • MaxClients in apache. How to know the size of my proccess?

    - by Larry
    From http://httpd.apache.org/docs/2.2/misc/perf-tuning.html The single biggest hardware issue affecting webserver performance is RAM. A webserver should never ever have to swap, as swapping increases the latency of each request beyond a point that users consider "fast enough". This causes users to hit stop and reload, further increasing the load. You can, and should, control the MaxClients setting so that your server does not spawn so many children it starts swapping. This procedure for doing this is simple: determine the size of your average Apache process, by looking at your process list via a tool such as top, and divide this into your total available memory, leaving some room for other processes. The main issue is that I can't understand how to know the size, because, well i have the size of httpd on no more of 3888 But, if we need to determine the number for MaxClients, and I have 4GB of RAM, so I get: 972, so I should use like 900 in the MaxClients?

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  • Auto Mocking using JustMock

    - by mehfuzh
    Auto mocking containers are designed to reduce the friction of keeping unit test beds in sync with the code being tested as systems are updated and evolve over time. This is one sentence how you define auto mocking. Of course this is a more or less formal. In a more informal way auto mocking containers are nothing but a tool to keep your tests synced so that you don’t have to go back and change tests every time you add a new dependency to your SUT or System Under Test. In Q3 2012 JustMock is shipped with built in auto mocking container. This will help developers to have all the existing fun they are having with JustMock plus they can now mock object with dependencies in a more elegant way and without needing to do the homework of managing the graph. If you are not familiar with auto mocking then I won't go ahead and educate you rather ask you to do so from contents that is already made available out there from community as this is way beyond the scope of this post. Moving forward, getting started with Justmock auto mocking is pretty simple. First, I have to reference Telerik.JustMock.Container.DLL from the installation folder along with Telerik.JustMock.DLL (of course) that it uses internally and next I will write my tests with mocking container. It's that simple! In this post first I will mock the target with dependencies using current method and going forward do the same with auto mocking container. In short the sample is all about a report builder that will go through all the existing reports, send email and log any exception in that process. This is somewhat my  report builder class looks like: Reporter class depends on the following interfaces: IReporBuilder: used to  create and get the available reports IReportSender: used to send the reports ILogger: used to log any exception. Now, if I just write the test without using an auto mocking container it might end up something like this: Now, it looks fine. However, the only issue is that I am creating the mock of each dependency that is sort of a grunt work and if you have ever changing list of dependencies then it becomes really hard to keep the tests in sync. The typical example is your ASP.NET MVC controller where the number of service dependencies grows along with the project. The same test if written with auto mocking container would look like: Here few things to observe: I didn't created mock for each dependencies There is no extra step creating the Reporter class and sending in the dependencies Since ILogger is not required for the purpose of this test therefore I can be completely ignorant of it. How cool is that ? Auto mocking in JustMock is just released and we also want to extend it even further using profiler that will let me resolve not just interfaces but concrete classes as well. But that of course starts the debate of code smell vs. working with legacy code. Feel free to send in your expert opinion in that regard using one of telerik’s official channels. Hope that helps

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  • LVS TCP connection timeouts - lingering connections

    - by Jon Topper
    I'm using keepalived to load-balance connections between a number of TCP servers. I don't expect it matters, but the service in this case is rabbitmq. I'm using NAT type balancing with weighted round-robin. A client connects to the server thus: [client]-----------[lvs]------------[real server] a b If a client connects to the LVS and remains idle, sending nothing on the socket, this eventually times out, according to timeouts set using ipvsadm --set. At this point, the connection marked 'a' above correctly disappears from the output of netstat -anp on the client, and from the output of ipvsadm -L -n -c on the lvs box. Connection 'b', however, remains ESTABLISHED according to netstat -anp on the real server box. Why is this? Can I force lvs to properly reset the connection to the real server?

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  • ArchBeat Link-o-Rama for August 1, 2013

    - by OTN ArchBeat
    Performance Tuning – Systems Running BPEL Processes | Ravi Saraswathi and Jaswant Sing Ravi Saraswathi and Jaswant Singh, the authors of "Oracle SOA BPEL Process Manager 11gR1 - A Hands-on Tutorial" explain performance tuning of SOA composite applications for optimal performance and scalability. Steps to configure SAML 2.0 with Weblogic Server | Puneeth The blogger known only as Punteeth shares an illustrated technical post that will be of interest to those working with Oracle WebLogic and the Security Assertion Markup Language (SAML). Video: Planning and Getting Started - Developer PCs | Chris Muir Tune in to the latest episode of ADF Architecture TV to see Chris Muir explain why you don't have to buy the most expensive PCs in order to run JDeveloper. Key User Experience Design Principles for working with Big Data | John Fuller User Experience Designer John Fuller shares 6 core design principles for working with big data that focus on "helping people bring together a variety of data types in a fast and flexible way." Event: OTN Developer Day: ADF Mobile - Burlington, MA - Aug 28 Through six sessions, including a hands-on workshop, you'll learn a simpler way to leverage your existing skills to develop enterprise mobile applications using Oracle ADF Mobile. Registration is free, but seating is limited. Optimizing WebCenter Portal Mobile Delivery | Jeevan Joseph FMW solution architect Jeevan Joseph "walks you through identifying and analyzing some common WebCenter Portal performance bottlenecks related to page weight and describes a generic approach that can streamline your portal while improving the performance and response times." Customizing specific instances of a WebCenter task flow | Jeevan Joseph Fusion Middleware A-Team solution architect Jeevan Joseph strikes again with this article that explains "how to set up parameters on MDS customization so that it is applied only under certain conditions...making it possible to customize individual instances of task flows." Exalogic Virtual Tea Break Snippets – Modifying Memory, CPU and Storage on a vServer | Andrew Hopkinson FMW solution architect Andrew Hopkinson walks you through "the simple process of resizing the resources associated with an already existing Exalogic vServer." Oracle ADF Mobile Virtual Developer Day - Next Week | Shay Shmeltzer JDeveloper product team lead Shay Schmeltzer shares agenda information for the OTN Virtual Developer Day event covering Mobile Application Development for iOS and Android, coming up one week from today, on August 7, 2013, 9am PT/Noon ET/1pm BRT. What's New In Oracle Enterprise Pack for Eclipse 12.1.2.1.0? New features and updates on the newly-released Oracle Enterprise Pack for Eclipse 12.1.2.1.0, now available for download from OTN. IOUG Cloud Builders Unite | Jeff Erickson Check out this great Oracle Magazine article by Jeff Erickson about IOUG members organizing around their common interest in building private clouds. Thought for the Day "Stuff that's hidden and murky and ambiguous is scary because you don't know what it does." — Jerry Garcia (August 1, 1942 – August 9, 1995) Source: brainyquote.com

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  • Practical Approaches to increasing Virtualization Density-Part 1

    - by Girish Venkat
    Happy New year everyone!. Let me kick start the year off by talking about Virtualization density.  What is it?The number of virtual servers that a physical server can support and it's increase from the prior physical infrastructure as a percentage. Why is it important?This is important because the density should be indicative of how well the server is getting consumed?So what is wrong ?Virtualization density fails to convey the "Real usage" of a server.  Most of the hypervisor based O/S Virtualization  evangelists take pride in the fact that they are now running a Virtual Server farm of X machines compared to a Physical server farm of Y (with Y less than X obviously). The real question is - has your utilization of the server really increased or not.  In an internal study that was conducted by one of the top financial institution - the utilization of servers only went up by 15% from 30 to 45. So, this really means that just by increasing virtualization density one will not be achieving the goal of using up the servers in their server farm better.  I will write about what the possible approaches are to increase virtualization density in the next entry. 

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  • Inverted schedctl usage in the JVM

    - by Dave
    The schedctl facility in Solaris allows a thread to request that the kernel defer involuntary preemption for a brief period. The mechanism is strictly advisory - the kernel can opt to ignore the request. Schedctl is typically used to bracket lock critical sections. That, in turn, can avoid convoying -- threads piling up on a critical section behind a preempted lock-holder -- and other lock-related performance pathologies. If you're interested see the man pages for schedctl_start() and schedctl_stop() and the schedctl.h include file. The implementation is very efficient. schedctl_start(), which asks that preemption be deferred, simply stores into a thread-specific structure -- the schedctl block -- that the kernel maps into user-space. Similarly, schedctl_stop() clears the flag set by schedctl_stop() and then checks a "preemption pending" flag in the block. Normally, this will be false, but if set schedctl_stop() will yield to politely grant the CPU to other threads. Note that you can't abuse this facility for long-term preemption avoidance as the deferral is brief. If your thread exceeds the grace period the kernel will preempt it and transiently degrade its effective scheduling priority. Further reading : US05937187 and various papers by Andy Tucker. We'll now switch topics to the implementation of the "synchronized" locking construct in the HotSpot JVM. If a lock is contended then on multiprocessor systems we'll spin briefly to try to avoid context switching. Context switching is wasted work and inflicts various cache and TLB penalties on the threads involved. If context switching were "free" then we'd never spin to avoid switching, but that's not the case. We use an adaptive spin-then-park strategy. One potentially undesirable outcome is that we can be preempted while spinning. When our spinning thread is finally rescheduled the lock may or may not be available. If not, we'll spin and then potentially park (block) again, thus suffering a 2nd context switch. Recall that the reason we spin is to avoid context switching. To avoid this scenario I've found it useful to enable schedctl to request deferral while spinning. But while spinning I've arranged for the code to periodically check or poll the "preemption pending" flag. If that's found set we simply abandon our spinning attempt and park immediately. This avoids the double context-switch scenario above. One annoyance is that the schedctl blocks for the threads in a given process are tightly packed on special pages mapped from kernel space into user-land. As such, writes to the schedctl blocks can cause false sharing on other adjacent blocks. Hopefully the kernel folks will make changes to avoid this by padding and aligning the blocks to ensure that one cache line underlies at most one schedctl block at any one time.

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  • NGINX + PHP FPM connect() failed (110: Connection timed out) while connecting to upstream

    - by Leonard Teo
    We're running a fairly large site using nginx and PHP-FPM and we're getting a lot of errors as the site load is quite high. We're getting "connect() failed (110: Connection timed out) while connecting to upstream"...upstream: "fastcgi://127.0.0.1:9000" Here's my config file for PHP-FPM. PHP-FPM: [www] listen = 127.0.0.1:9000 listen.allowed_clients = 127.0.0.1 user = nginx group = nginx pm = dynamic pm.max_children = 100 pm.start_servers = 20 pm.min_spare_servers = 5 pm.max_spare_servers = 35 pm.max_requests = 100 slowlog = /var/log/php-fpm/www-slow.log php_admin_value[error_log] = /var/log/php-fpm/www-error.log php_admin_flag[log_errors] = on What's the recommended config/number of servers/children for a high traffic site? We tried using Unix Sockets instead of TCP and got no noticeable improvements. Right now the errors are: connect() to unix:/var/run/php-fcgi.sock failed (11: Resource temporarily unavailable) while connecting to upstream...upstream: "fastcgi://unix:/var/run/php-fcgi.sock:"... Thanks, Leonard

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  • SOA Management in 3 minutes - Video explainer

    - by J Swaroop
    Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Today’s CIOs and IT executives face challenges that take valuable time away from more strategic business objectives. They have to keep their systems running 24/7, manage increasingly complex applications, and more as part of their SOA environment. Watch this quick 3 minute video explainer to Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} learn how Oracle EM Management Pack Plus for SOA is engineered to deliver value right out of the box with a fully centralized management console - with a rich set of service and system level dashboards, administrators can view service levels for key business processes and SOA infrastructure components from a central location. Watch the 3 minute video explainer

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  • Increasing FreeBSD threads

    - by sh-beta
    For network apps that create one thread per connection (like Pound), threadcount can become a bottleneck on the number of concurrent connections you can server. I'm running FreeBSD 8 x64: $ sysctl kern.maxproc kern.maxproc: 6164 $ sysctl kern.threads.max_threads_per_proc kern.threads.max_threads_per_proc: 1500 $ limits Resource limits (current): cputime infinity secs filesize infinity kB datasize 33554432 kB stacksize 524288 kB coredumpsize infinity kB memoryuse infinity kB memorylocked infinity kB maxprocesses 5547 openfiles 200000 sbsize infinity bytes vmemoryuse infinity kB pseudo-terminals infinity swapuse infinity kB I want to increase kern.threads.max_threads_per_proc to 4096. Assuming each thread starts with a stack size of 512k, what else do I need to change to ensure that I don't hose my machine?

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  • Is Openness at the heart of the EU Digital Agenda?

    - by trond-arne.undheim
    At OpenForum Europe Summit 2010, to be held in Brussels, Autoworld, 11 Parc du Cinquantenaire on Thursday 10 June 2010, a number of global speakers will discuss whether it indeed provides an open digital market as a catalyst for economic growth and if it will deliver a truly open e-government and digital citizenship (see Summit 2010). In 2008, OpenForum Europe, a not-for-profit champion of openness through open standards, hosted one of the most cited speeches by Neelie Kroes, then Commissioner of Competition. Her forward-looking speech on openness and interoperability as a way to improve the competitiveness of ICT markets set the EU on a path to eradicate lock-in forever. On the two-year anniversary of that event, Vice President Kroes, now the first-ever Commissioner of the Digital Agenda, is set to outline her plans for delivering on that vision. Much excitement surrounds open standards, given that Kroes is a staunch believer. The EU's Digital Agenda promises IT standardization reform in Europe and vows to recognize global standards development organizations (fora/consortia) by 2010. However, she avoided the term "open standards" in her new strategy. Markets are, of course, asking why she is keeping her cards tight on this crucial issue. Following her speech, Professor Yochai Benkler, award-winning author of "The Wealth of Networks", and Professor Nigel Shadbolt, appointed by the UK Government to work alongside Sir Tim Berners-Lee to help transform public access to UK Government information join dozens of speakers in the quest to analyse, entertain and challenge European IT policy, people, and documents. Speakers at OFE Summit 2010 include David Drummond, Senior VP Corporate Development and Chief Legal Officer, Google; Michael Karasick, VP Technology and Strategy, IBM; Don Deutsch, Vice President, Standards Strategy and Architecture for Oracle Corp; Thomas Vinje, Partner Clifford Chance; Jerry Fishenden, Director, Centre for Policy Research, and Rishab Ghosh, head, collaborative creativity group, UNU-MERIT, Maastricht (see speakers). Will openness stay at the heart of EU Digital Agenda? Only time will show.

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  • What is a good way to store tilemap data?

    - by Stephen Tierney
    I'm developing a 2D platformer with some uni friends. We've based it upon the XNA Platformer Starter Kit which uses .txt files to store the tile map. While this is simple it does not give us enough control and flexibility with level design. Some examples: for multiple layers of content multiple files are required, each object is fixed onto the grid, doesn't allow for rotation of objects, limited number of characters etc. So I'm doing some research into how to store the level data and map file. This concerns only the file system storage of the tile maps, not the data structure to be used by the game while it is running. The tile map is loaded into a 2D array, so this question is about which source to fill the array from. Reasoning for DB: From my perspective I see less redundancy of data using a database to store the tile data. Tiles in the same x,y position with the same characteristics can be reused from level to level. It seems like it would simple enough to write a method to retrieve all the tiles that are used in a particular level from the database. Reasoning for JSON/XML: Visually editable files, changes can be tracked via SVN a lot easier. But there is repeated content. Do either have any drawbacks (load times, access times, memory etc) compared to the other? And what is commonly used in the industry? Currently the file looks like this: .................... .................... .................... .................... .................... .................... .................... .........GGG........ .........###........ .................... ....GGG.......GGG... ....###.......###... .................... .1................X. #################### 1 - Player start point, X - Level Exit, . - Empty space, # - Platform, G - Gem

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  • How do I protect business critical data against fire?

    - by Bill Knowles
    We have 72 hard drives that contain our webcast inventory. The number is increasing. We're located in a frame building and we are afraid of not only fire, but catastrophic fire. I've priced fireproof safes that hold to the required 125F for hard drives. Their price is through the roof. Seems to me if we made backups of each of the hard drives and stored them off-site somewhere, or contracted with an online backup storage company, we might run up a bill buying backup drives that would approach the $7,000 cost of the safe! What's the best way to protect our data from the risk of fire?

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  • Problem with Windows activation on a VM (Virtual machine)

    - by Daisetsu
    I backed up a number of laptops to virtual machines before they are to be re-purposed, in case I need the data at some later time. While the Physical to VM processes worked fine I am encountering issues on some of the VMs. When I boot them I get an error message saying I MUST activate windows in order to login. This is expected because the hardware changed (from physical hardware to virtualized hardware). I click the OK button and expect to be prompted with ways to activate, windows sits there for quite a while then tells me that "Windows has already been activated". I click OK at that message and get take back to the beginning where I am asked to activate Windows. I have done some fairly intensive googling but haven't been able to find a real solution. EDIT: The laptops with the issues are 2 Sony Vaios, I believe that they have the OEM version of the OS originally installed by the factory.

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

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

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  • links for 2010-04-22

    - by Bob Rhubart
    Barry N. Perkins: Unique Business Value vs. Unique IT "Some solutions may look good today, solving a budget challenge by reducing cost, or solving a specific tactical challenge, but result in highly complex environments, that may be difficult to manage and maintain and limit the future potential of your business. Put differently, some solutions might push today's challenge into the future, resulting in a more complex and expensive solution." -- Barry N. Perkins, VP Oracle Modernization & Oracle Integrated Solutions (tags: oracle otn enterprisearchitecture modernization) Paul Homchick: The Information Driven Value Chain - Part 2 Paul Homchick continues his series with a look "at the way investments have been made in enterprise software in an effort to create and manage value, and how systems are moving from a controlled-process approach design towards gathering and using dynamically using information." (tags: oracle otn enterprisearchitecture) @vambenepe: The battle of the Cloud Frameworks: Application Servers redux? "The battle of the Cloud Frameworks has started," says William Vambenepe, "and it will look a lot like the battle of the Application Servers which played out over the last decade and a half." (tags: oracle otn cloud frameworks appserver) @ORACLENERD: COLLABORATE: Day 4 Wrap Up Oraclenerd feesses up: "The day started out with the realization that I pulled off the best (COLLABORATE - self annointed) prank ever. Twitter was...all atwitter about the fact that Mark Rittman was Oracle's Person of the Year. Of course it wasn't true. If you look at the picture, you'll realize that he's wearing exactly the same clothes in the magazine cover as he is in real life." (tags: collaborate2010 oracleace) Oracle's Hal Stern at Cloud Expo: "We've Moved from 'What' to 'How'" | Cloud Computing Journal "Hal also spoke a bit about building 'a sustainable IT model.' By this, he said he didn't mean the various Green IT and similar efforts that 'are all about data center efficiency. I think the operational model is just as important. Many enterprises are managing a tremendous amount of complexity, and it's hard to make this sustainable.'" -- Cloud News Desk (tags: oracle cloud cloudexpo halstern) @ORACLENERD: COLLABORATE: The Beach Party "Then tiki statues somehow were incorporated into various dances" -- Oracle ACE Chet "oraclenerd" Justice (tags: 0racle otn oracleace collaborate2010 oaug ioug lasvegas) David Andrews: Collaborate Day Two "Collaborate 2010 has focused on helping attendees understand what is already available and how to make more effective use of it. This does not sound exciting but it is extremely valuable. Most customers use only a small fraction of the capability of the products they already own. Helping them understand all the additional things they could be doing without buying anything more is very valuable." -- David Andrews (tags: oracle oaug collaborate2010 ioug)

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  • Application Lifecycle Management Tools

    - by John K. Hines
    Leading a team comprised of three former teams means that we have three of everything.  Three places to gather requirements, three (actually eight or nine) places for customers to submit support requests, three places to plan and track work. We’ve been looking into tools that combine these features into a single product.  Not just Agile planning tools, but those that allow us to look in a single place for requirements, work items, and reports. One of the interesting choices is Software Planner by Automated QA (the makers of Test Complete).  It's a lovely tool with real end-to-end process support.  We’re probably not going to use it for one reason – cost.  I’m sure our company could get a discount, but it’s on a concurrent user license that isn’t cheap for a large number of users.  Some initial guesswork had us paying over $6,000 for 3 concurrent users just to get started with the Enterprise version.  Still, it’s intuitive, has great Agile capabilities, and has a reputation for excellent customer support. At the moment we’re digging deeper into Rational Team Concert by IBM.  Reading the docs on this product makes me want to submit my resume to Big Blue.  Not only does RTC integrate everything we need, but it’s free for up to 10 developers.  It has beautiful support for all phases of Scrum.  We’re going to bring the sales representative in for a demo. This marks one of the few times that we’re trying to resist the temptation to write our own tool.  And I think this is the first time that something so complex may actually be capably provided by an external source.   Hooray for less work! Technorati tags: Scrum Scrum Tools

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  • Booting from USB on Mac Air (using setup_mac_usb_boot.sh)

    - by Mike O
    So, I've been working on this for hours and it's getting a little tiring. As some of you may know, installing Ubuntu on Macs is frequently an adventure, and I'm experiencing that right now. The part I'm hung up on at the moment is making a bootable USB. I would just use a CD, but my laptop is a MacBook Air (which doesn't have a CD drive), and I don't own an external CD drive. I initially attempted to use the command line method supplied by the Ubuntu documentation here: https://help.ubuntu.com/community/How%20to%20install%20Ubuntu%20on%20MacBook%20using%20USB%20Stick However, that wasn't even recognized by rEFIt even when I made a number of different modifications to the process, so I quickly decided to look elsewhere. I came across this guide: https://help.ubuntu.com/community/MacBookAir4-2#Basic_Installation_Instructions This ended up working to a large extent. If I choose the supplied grub from rEFIt, it will bring me to the Ubuntu grub, asking me to try it, install, or check the disk. And if I choose to boot Linux directly from rEFIt, it will bring me to the language selection menu. But when I make my selection from either of these menus it pauses for about ten seconds and then gives me a command line error message. It begins with kernel panic - not syncing timer doesn't work through interrupt, and then shows about eight file names. Does anyone here have any ideas as to what can be causing this? I also tried the script with both Ubuntu 11.10 (the current version when the script was written) and 12.04.

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  • composite-video-to-usb adaptor

    - by sawa
    I bought a composite-video-to-usb adaptor. I want to stream video game in ubuntu. How can I do that? My environment: Monoprice USB Video and Audio Grabber Ubuntu 11.04 The relevant output of lsusb: Bus 001 Device 011: ID 0572:262a Conexant Systems (Rockwell), Inc. The relevant output of sudo lshw: *-usb:0 description: USB Controller product: 82801JI (ICH10 Family) USB UHCI Controller #4 vendor: Intel Corporation physical id: 1a bus info: pci@0000:00:1a.0 version: 00 width: 32 bits clock: 33MHz capabilities: uhci bus_master cap_list configuration: driver=uhci_hcd latency=0 resources: irq:16 ioport:f0e0(size=32) *-usb:1 description: USB Controller product: 82801JI (ICH10 Family) USB UHCI Controller #5 vendor: Intel Corporation physical id: 1a.1 bus info: pci@0000:00:1a.1 version: 00 width: 32 bits clock: 33MHz capabilities: uhci bus_master cap_list configuration: driver=uhci_hcd latency=0 resources: irq:21 ioport:f0c0(size=32) *-usb:2 description: USB Controller product: 82801JI (ICH10 Family) USB UHCI Controller #6 vendor: Intel Corporation physical id: 1a.2 bus info: pci@0000:00:1a.2 version: 00 width: 32 bits clock: 33MHz capabilities: uhci bus_master cap_list configuration: driver=uhci_hcd latency=0 resources: irq:18 ioport:f0a0(size=32) *-usb:3 description: USB Controller product: 82801JI (ICH10 Family) USB2 EHCI Controller #2 vendor: Intel Corporation physical id: 1a.7 bus info: pci@0000:00:1a.7 version: 00 width: 32 bits clock: 33MHz capabilities: pm debug ehci bus_master cap_list configuration: driver=ehci_hcd latency=0 resources: irq:18 memory:e0525c00-e0525fff *-multimedia description: Audio device product: 82801JI (ICH10 Family) HD Audio Controller vendor: Intel Corporation physical id: 1b bus info: pci@0000:00:1b.0 version: 00 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: driver=HDA Intel latency=0 resources: irq:43 memory:e0520000-e0523fff *-usb:4 description: USB Controller product: 82801JI (ICH10 Family) USB UHCI Controller #1 vendor: Intel Corporation physical id: 1d bus info: pci@0000:00:1d.0 version: 00 width: 32 bits clock: 33MHz capabilities: uhci bus_master cap_list configuration: driver=uhci_hcd latency=0 resources: irq:23 ioport:f080(size=32) *-usb:5 description: USB Controller product: 82801JI (ICH10 Family) USB UHCI Controller #2 vendor: Intel Corporation physical id: 1d.1 bus info: pci@0000:00:1d.1 version: 00 width: 32 bits clock: 33MHz capabilities: uhci bus_master cap_list configuration: driver=uhci_hcd latency=0 resources: irq:19 ioport:f060(size=32) *-usb:6 description: USB Controller product: 82801JI (ICH10 Family) USB UHCI Controller #3 vendor: Intel Corporation physical id: 1d.2 bus info: pci@0000:00:1d.2 version: 00 width: 32 bits clock: 33MHz capabilities: uhci bus_master cap_list configuration: driver=uhci_hcd latency=0 resources: irq:18 ioport:f040(size=32) *-usb:7 description: USB Controller product: 82801JI (ICH10 Family) USB2 EHCI Controller #1 vendor: Intel Corporation physical id: 1d.7 bus info: pci@0000:00:1d.7 version: 00 width: 32 bits clock: 33MHz capabilities: pm debug ehci bus_master cap_list configuration: driver=ehci_hcd latency=0 resources: irq:23 memory:e0525800-e0525bff The relevant output of dmesg: [18953.220035] usb 1-1: new high speed USB device using ehci_hcd and address 6 [19964.761076] Linux video capture interface: v2.00 [19964.767112] usbcore: registered new interface driver uvcvideo [19964.767115] USB Video Class driver (v1.0.0)

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  • Will open files limit in Centos affect HTTP connections? Does the limit apply to a single session or all sessions?

    - by forestclown
    When I do a ulimit -n I got 256, I assume it means I can open 256 files at the sametime. Does it means I can open 256 files with one single session? or all sessions? For example, I logined to my server with username "abc" (via putty/ssh), and open 200 files, with the session still running, I logined to the same server again with the same username "abc" (via putty/ssh), I can open only another 56 files? or I can open another 256 files? Lastly, does this limit also restrict number of http connections? e.g. with the above example, I have opened 200 files, and then I use "wget" or "curl" to make http connections. Thanks

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  • How do I measure performance of a virtual server?

    - by Sergey
    I've got a VPS running Ubuntu. Being a virtual server, I understand that it shares resources with unknown number of other servers, and I'm noticing that it's considerably slower than my desktop machine. Is there some tool to measure the performance of the virtual machine? I'd be curious to see some approximate measure similar to bogomips, possibly for CPU (operations/sec), memory and disk read/write speed. I'd like to be able to compare those numbers to my desktop machine. I'm not interested in the specs of the actual physical machine my VPS is running on - by doing cat /proc/cpuinfo I can see that it's a nice quad-core Xeon machine, but it doesn't matter to me. I'm basically interested in how fast a program would run in my VPS - how many CPU operations it can make in a second, how many bytes to write to RAM or to disk. I only have ssh access to the machine so the tool need to be command-line. I could write a script which, say, does some calculations in a loop for a second and counts how many loops it was able to do, or something similar to measure disk and RAM performance. But I'm sure something like this already exists.

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  • Understand how the TLB (Translation Lookaside buffer) works and interacts with pagetable and addresses

    - by Darxval
    So I am trying to understand this TLB (Translation Lookaside Buffer). But I am having a hard time grasping it. in context of having two streams of addresses, tlb and pagetable. I don't understand the association of the TLB to the streamed addresses/tags and page tables. a. 4669, 2227, 13916, 34587, 48870, 12608, 49225 b. 12948, 49419, 46814, 13975, 40004, 12707 TLB Valid Tag Physical Page Number 1 11 12 1 7 4 1 3 6 0 4 9 Page Table Valid Physical Page or in Disk 1 5 0 Disk 0 Disk 1 6 1 9 1 11 0 Disk 1 4 0 Disk 0 Disk 1 3 1 12 How does the TLB work with the pagetable and addresses? The homework question given is: Given the address stream in the table, and the initial TLB and page table states shown above, show the final state of the system also list for each reference if it is a hit in the TLB, a hit in the page table or a page fault. But I think first i just need to know how does the TLB work with these other elements and how to determine things. How do I even start to answer this question?

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