sql server - how to gain a high performance with a very big database -


I was always wondering how any other site like any other site like facebook Should be faster than that, although large amounts of data that store daily in large quantities .. What are they using to store the information and if I store sql server Such as news feed is okay or what (news feed is stored in a separate table Will be honored which is called news ). On the other hand if I am involved in big tables with each other what can happen - it can be slow (maybe) or does not matter how big the table is?

When you talk about scaling at the size of Facebook, there is a whole different ball park. About the latest estimate (sixty thousand) put Facebook Datacenter. Only the cash is estimated (terabytes) in a mosque. Although their last end style is MySQL, it is used as a pure key-value store according to the public key:

  • Facebook uses MySQL, but primarily a Key-value is added to the web server as continuous storage and reasoning because optimization works smoothly on there ("on the other side" of the memcached layer).
>

There are many other technologies in use

  • for HTTD delivery
  • for Inbox Search

    • You can see SIGMOD 2010 key address this year too. They also present their basic internal APIs: 

      cache_get ($ id, 'cache_function', $ cache_update, 'db_function', $ db_params);

    So if you connect the dots, you will see that on such a scale you no longer talk about the 'big database'. You talk about the vast groups of services, key-value storage divided into thousands of servers, many techniques are used together and so on and beyond.

    As a side note, you can see a very good presentation. Although the technology stack is completely different (Microsoft .Net and SQL Server, which has a huge emphasis on the message through), there are similar points of how to contact the storage to summarize: < Strong> Application Layer Split .


    -

    Comments

    Post a Comment

    Popular posts from this blog

    Eclipse CDT variable colors in editor -

    I hope this is a good question to ask here. This programming is related, so I thought it would be better than the superuser, so I am using the CDT C ++ Eclipse plugin. I know how the editor changes colors for some things But is there a way to do that all the variables are different colors? For example in KDEValue, it sets the local variables and square variables in different colors and bold square squares. Can I copy it to CDT? Eclips provides some level of color customization for text editor syntax You can see it on the following: There are many elements, including the Window> Preferences> C / C ++> Editor> Syntax color code that can be changed, assembly, Comments, Preprocessor and Doxian Under the code, it is possible to change the color of some variable types, such as global variables, local variable announcements, local variable references, and parameter variables. But I do not think the code is capable of changing the color of each variable declared....
    Read more

    AJAX doesn't send POST query -

    $ (दस्तावेज़) .ready (function () {function ajaxselectrss (rssurlvar) {var ajaxRequest; // वेरिएबल जो अजाक्स को संभव बनाता है! कोशिश करें कि {// ओपेरा 8.0+, फ़ायरफ़ॉक्स, सफारी अजाक्स अनुरोध} = नया एक्सएमएलएचटीपीआरइवेस्ट ();} कैच (ई) {// इंटरनेट एक्सप्लोरर ब्राउज़र्स {ajaxRequest = new ActiveXObject ("Msxml2.XMLHTTP");} पकड़ो (ई) {try {ajaxRequest = new ActiveXObject ("Microsoft.XMLHTTP");} कैच (ई) {// कुछ गलत चेतावनी ("आपका ब्राउज़र तोड़ दिया!"); वापसी झूठी;}}} // एक बनाएं फ़ंक्शन जो सर्वर से भेजे गए डेटा प्राप्त करेंगे ajaxRequest.onreadystatechange = function () {if (ajaxRequest.readyState == 4) {var ajaxDisplay = document.getElementById ('news'); ajaxDisplay.innerHTML = ajaxRequest.responseText;}} / / Var rssurlvar = $ (this) .attr ("title"); var queryString = "rurl =" + rssurlvar; var urltofile = "rssget.php"; ajaxRequest.open ("पोस्ट", urltofile, सच); ajaxRequ Est.setRequestHeader ("सामग्री-प्र...
    Read more

    wpf - Custom Message Box Advice -

    Well, I'm using a custom window box that comes with some custom control boxes that accompany the text The producers who are displayed are called. I have a defined event, which has been subscribed through the original class, it gets burnt when clicking on the button. However, I can not see how to use it effectively, I would like to return one yes, whether yes or not, but obviously my code will continue to execute, so this Below is some example code to clarify the problem that the method has subscibed by clicking on the button. Message box window Public partial class custom message box: window {public representative message messagebox object sender, event events e); Public event messagebox handler messagebox document; Public Customs Box () {Initial group (); } Public Customsbox (String Message) {InitializeComponent (); This.txtdescription.Text = Message; } Public Customsbox (String Message, String Title, String First BTNtext) {Initialization (); This.lbltitle.Content =...
    Read more