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  • Question about server usage, big community platform

    - by Json
    I’m working on a community platform writen in PHP, MySQL. I have some questions about the server usage maybe someone can help me out. The community is based on JQuery with many ajax requests to update content. It makes 5 - 10 AJAX(Json, GET, POST) requests every 5 seconds, the requests fetch user data like user notifications and messages by doing mySQL queries. I wonder how a server will handle this when there are for more than 5000 users online. Then it will be 50.000 requests every 5 seconds, what kind of server you need to handle this? Or maybe even more, when there are 15.000 users online, 150.000 requests every 5 seconds. My webserver have the following specs. Xeon Quad 2048MB 5000GB traffic Will it be good enough, and for how many users? Anyone can help me out or know where to find such information, like make a calculation?

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  • How to fix this navigation issue in my site?

    - by David
    First off I use webs.com for the creation of my site. I have a very basic layout. List of links of the left and content on the right with a heading up top. Now in my list of links every link is an article that I wrote, I have about 25 links going down the left hand side of my site. Problem is when I try out new themes that support horizontal navigation as opposed to vertical navigation I get either a messy overflow of links Or a link called "more" which lists the rest of the articles in a drop down-list across my site. What I wish I had was a simple horizontal navigation like" "home, about, articles" and when the user clicks on articles it would then bring them to a page containing all my articles there. I would prefer it to be in a table like display. That way is not a long list. Anyways any ideas on how I can fix this issue im having? Please let me know if you need more information.

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  • PrestaShop install SQL error

    - by Steve
    I am trying to install PrestaShop 1.4.0.17, and reach Step 3. I enter database information, which tests okay, and I choose the second option: Full mode: includes 100+ additional modules and demo products (FREE too!). I choose Next, and receive the error: Error while inserting data in the database: ‘CREATE TABLE `shop_county_zip_code` ( `id_county` INT NOT NULL , `from_zip_code` INT NOT NULL , `to_zip_code` INT NOT NULL , PRIMARY KEY ( `id_county` , `from_zip_code` , `to_zip_code` ) ) ENGINE=’ You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near \’\’ at line 6(Error: : 1064) This happens if I use either MyISAM, or InnoDB. Why is this happening? This also happens if I drop all database tables, and try again in simple mode. Is there a manual installation method?

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  • Hover alternatve for touch devices [migrated]

    - by Joshua Frank
    I'm building a standard infographic where you mouse over a region and the image changes as you move. For instance, imagine a map of the world, and when you mouse over a country, that country glows and a panel shows statistics about that country. The implementation is to have a separate image for the glowing country, and a div element with the statistics, and the code shows these additional elements on a hover over the country. The question is: what should this do on a tablet, where there's no hover event? What's a good alternative navigation metaphor for this kind of situation on touch-only devices?

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  • MCrypt Module, Rijndael-256

    - by WernerCD
    An outside company is redoing our company Intranet. During some basic usage I disovered that the "User Edit" screens, with the "Password: *" boxes have the password in plain text, with the text box "type=password" to "hide" the password. The passwords are not store in the database as plain text, they are stored encrypted using "rijndael-256" cypher using the mcrypt module. I know that if I encrypt a password with SHA*, the password is "Unrecoverable" via one-way encryption. Is the same of MCrypt Rijndael-256 encryption? Shouldn't an encrypted password be un-recoverable? Are they blowing smoke up my rear or just using the wrong technology?

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  • Storing data offline with javascript

    - by Walker
    My question is about storing data offline and potentially whether I will need to bring in an outside programmer or could this be learned within a few weeks? The website I am working on will have an interface where users will login and go through a series of quizzes in the form of checkbox, drop down menus, and others. Each page/quiz area could have 20-100 total checkboxes in a series of 3-5 rows because of the comprehensive nature of course. This I can do - I know how to code the quiz and return a correct or incorrect answer based on each individual checkbox and present a cumulative score (ie: you got 57% correct). The issue lies in the fact that I would like to save the users results and keep them informed of their progress. When they complete all of the quizzes, I would like to have a visual output of their performance in each area. Storing the output from their results offline is where I think I may run into a problem with my lack of coding experience. I would also like to have a sidebar with their progress of each section (10-15) with a green percentage completion bar or a % correct which would draw from this. I have never had to code something that stores information like this offline - so back to my question - would it be better to learn the language needed or bring in a coder/developer for the back end stuff.

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  • Facebook Payments & Credits vs. Real-World & Charities

    - by Adam Tannon
    I am having a difficult time understanding Facebook's internal "e-commerce microcosm" and what it allows Facebook App developers to do (and what it restricts them from doing). Two use cases: I'm an e-com retailer selling clothes and coffee mugs (real-world goods) on my website; I want to write a Facebook App that allows Facebook users to buy my real-world goods from inside of Facebook using real money ($ USD) I'm highschool student trying to raise money for my senior class trip and want to build a Facebook App that allows Facebook users to donate to our class using real money ($ USD) Are these two scenarios possible? If not, why (what Facebook policies prohibit me from doing so)? If so, what APIs do I use: Payments or Credits? And how (specifically) would it work? Do Facebook Users have to first buy "credits" (which are mapped to $ USD values under the hood) and pay/donate with credits, or can they whip out their credit card and pay/donate right through my Facebook App? I think that last question really summarizes my confusion: can Facebook users enter their credit card info directly into Facebook Apps, or do you have to go through Payments/Credits APIs as a "middleman"?

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  • Does MS create cross browser compatibility problems on purpose? [closed]

    - by P.Brian.Mackey
    IE does some weird **. E.G. Supporting the send() method in AJAX with no params. Poor support for XML (well IE9 I've heard things are alot better), but seriously...since MS owned such a huge market share on browsers were they intentionally dropping in problems like this and making it easy to write crap code to give the impression that competing browsers suck to the layman? Update I realize Javascript's limitations caused some of the Xcompatibility problems. I have read comments from Douglas Crockford regarding how javascript was rushed and exploded in popularity before its time...resulting in some of the issues he can't fix. I'm only concerned specifically about MS's intentions...problems they could have fixed, yet did not. Did any of you work on the IE team or know of articles discussing some details?

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  • Building a Map based WebApp fast?

    - by NLemay
    I want to build a WebApp which is basically a map with points of interest, filters, and a list of those points. Something really similar to AirBnB, or any other map based app. Of course, I could just take Google Maps API and build what's around. But I guess a lot of people already did that, and may be I could use their work to make mine faster. Here's what I need : Adding multiples POI A list of POI that are showed on the map A way to filter POI Most have a behavior to handle a lot of POI Can works on mobile and tablet I already know one template that can do nearly all of this, it is call Bootleaf. But I would like to know if you know others that might work better.

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  • Apple multiplie par 10 le prix de la publicité mobile, cible les utilisateurs avec leurs application

    Apple multiplie par 10 le prix de la publicité mobile Utilise les applications des utilisateurs pour les cibler et entend contrôler les contenus des annonceurs Avec le lancement de sa plateforme publicitaire (iAd), Apple entend vendre à prix d'or les premières places et laisse les professionnels dubitatifs. La firme demande en effet pas moins de 10 millions de dollars pour faire partie des premiers à diffuser ses annonces. Le prix redescendra ensuite à un simple petit million pour afficher sa marque sur l'iPhone, l'iPod ou l'iPad. La somme est colossale quand on la compare des 100 ou 200 000 dollars auxquels sont habitués les professionnels payent pour de tels acco...

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  • Jersey 1.8 - Another GlassFish 3.1.1 component is ready

    - by alexismp
    We now have a new release of the JAX-RS 1.1 reference implementation - Jersey 1.8 is just out! Thisbug-fix release follows the EclipseLink 2.3 release from last week (as part of the Eclipse Indigo train release) and other components such as Woodstox 4.1.1 and Weld 1.1.1 which have already been released and integrated. To get started with Jersey 1.8, begin here and don't forget to visit the Jersey Wiki pages. You can also grab a nightly build of GlassFish 3.1.1 or wait for the next promoted build (#10) due out in a few days. As it currently stands for GlassFish 3.1.1, we have integration of the final bits for Metro 2.1.1 (currently at 2.1.1b7), Mojarra 2.1.3 (currently at 2.1.3b1), and MQ 4.5.1 (currently at 4.5.1b3) still ahead of us.

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  • Piumini Woolrich è popolare a livello globale

    - by WoolrichParka
    Woolrich Parka femmine è molto popolare per la sua calda e resistente a freddo times.You può comprare un creato di copertura cappotto in pile che è proprio come una tua grande-nonno, o iniziare la vostra abitudine proprio con mobili su misura di qualità che durerà anche nel la prossima creazione del vostro family.Now, Woolrich è popolare a livello globale e la donna Woolrich Arctic Parka questo parka inverno è anche il più noto disponibile sul settore. Con il suo stile eccellente riscaldata e, ad alte prestazioni, Maestro piace molto.wufengfengmaple36

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  • Add multi monitor option to remote desktop web access

    - by Eds
    I have a test environment for a remote desktop farm with a connection broker load balancing logins across remote desktop session host servers. All servers are built on Server 2012 R2. Using rd web access, we can access this farm from anywhere. When logging in via web access, you can choose the screen resolution or use full screen. If you have two monitors when selecting full screen, it will always use both your monitors. Does anyone know how to adjust the RDWeb page so that you can choose whether or not to use both your monitors? This option is in the GUI from RDP 6.1 onwards, so I would imagine there is a way to also add it the web access page.

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  • 'Buy the app' landing page implementations: redirect or javascript popup?

    - by benwad
    My site (using Django) has an app that I'm trying to push - I currently have a piece of middleware that redirects the user to a page advertising the app if they're accessing the page on the iPhone, then setting a cookie so that the user isn't bugged by the message every time they visit the site. This works fine, however checking the page with the mobile Googlebot checker shows that the Googlebot gets stuck in the redirect (since it doesn't store cookies) and therefore won't index the proper content. So, I'm trying to think of an alternative implementation that won't hurt the site's Google ranking and won't have any other adverse effects. I've considered a couple of options: Redirect (the current solution), but don't redirect if the user agent matches the Googlebot's UA string. This would be ideal, however I'm not sure if Google like their bot being treated differently from other users, and I'm afraid the site's ranking may be somehow penalised if I go ahead with this. Use a Javascript popup instead of a redirect. This would make sure the Googlebot finds the content it needs, however I envision this approach causing compatibility issues with the myriad mobile devices/browsers out there, and may affect the page load time. How valid are these options? And is there a better option for implementing this feature out there? I've tried researching this topic but surprisingly can't find any reputable-looking blog posts that explore this topic.

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  • Rehosting content from another server

    - by Lana_M
    We have a set of static pages that will augment a customer's existing site. The pages will not reside on the customer's servers for logistical reasons and because we need to maintain control of the content. The plan is for the customer to set up a mod_rewrite rule that will funnel certain types of URLs to a single server-side handler script that will grab the appropriate file from a CDN and just output its content. This illustrates the approach: <?php echo(file_get_contents(str_replace($customer_host, $cdn_host, $_SERVER['REQUEST_URI']))); ?> Can anyone think of pitfalls or offer up a different approach? Is there some way to circumvent a script altogether?

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  • Ubuntu's New Web Office Integration

    <b>LinuxUK:</b> "Take for instance a low powered, possibly mobile/embedded system with limited processing power and memory. A cloud based service for these devices could allow resource intensive tasks to be offloaded to an online server somewhere, greatly improving the UX"

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  • What is the architectural name for the set of data that enables UI choices?

    - by Richard Collette
    I have separate service methods that fetch business object data and the data for UI selection input such as radio buttons, check-boxes, combo-boxes, etc. I want to name my service methods that fetch the selection data appropriately. I am assuming that Model and ViewModel would not be part of the name because the selection data is but a portion of the Model or ViewModel. What might this set of data be named such that I can name my service method?

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  • What kind of hosting do I need?

    - by Robert Smith
    I migrated this question from serverfault. Hopefully this is the appropriate place. I have been trying to answer this question but I haven't found an specific answer to my situation. As I want to pay for what I need, I thought I could get a good answer here. I have a custom made forum (rather than a built-in forum like the ones you can find in plugins, e.g. WP-Forum or phpBB type of software) in Django. I don't want to use Apache and modwsgi because it's usually very memory-hungry and I can't afford a big server. I prefer a combination of nginx and gunicorn which I think is very efficient (maybe you can also tell me what you think about that). I'm expecting to receive 10,000 to 20,000 visits each month with 15,000 to 30,000 page impressions. I have reviewed some cloud services like Amazon EC2 or Rackspace and other more traditional services (Linodo). This site won't use videos or big images and I certainly don't need a huge amount of bandwidth (200GB would be definitely too much). I need shell access so shared hosting is out of the question. What do I need to run a website like that without problems? What about RAM? 256MB would be enough (that's the amount of RAM offered by small instances in Amazon and Rackspace)? Do you know of any alternative to those I mentioned? If you need more information to provide a useful answer, please don't hesitate to ask. By the way, I was told that Linodo is not all that different to Amazon EC2 but this website is supposed to work 24/7, so I can't take advantage of Linodo's flexibility regarding creating and deleting instances. Thanks in advance.

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  • How does Google+ embed link works?

    - by Drake
    I am trying to understand how does embed link works in Google+ Stream. I manage a site and usually every post contains some text and at least an image. But when I try to embed the link to a certain article on my blog the embed feature does not show the article text and images, but instead it shows the header image of my site plus some other header text content. Do you know how should I tag or code the article part so that Google+ parser recognize the right thing I want to show?

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