سناریویی را در نظر بگیرید که حجم داده آنقدر زیاد شده است که امکان قرار دادن آن در یک سرور ذخیره‌سازی (پایگاه داده) امکان پذیر نیست. حتی ممکن است بهبود توان و فضای سرور ذخیره‌سازی هم مقرون به صرفه نباشد زیرا پاسخ به درخواست وارده باید کل پایگاه داده را بررسی کند. افراز بندی پایگاه داده که به آن شارد کردن (sharding) نیز می‌گویند، یک راه معروف برای حل مشکل فوق است.
سناریویی را در نظر بگیرید که حجم داده آنقدر زیاد شده است که امکان قرار دادن آن در یک سرور ذخیره‌سازی (پایگاه داده) امکان پذیر نیست. حتی ممکن است بهبود توان و فضای سرور ذخیره‌سازی هم مقرون به صرفه نباشد زیرا پاسخ به درخواست وارده باید کل پایگاه داده را بررسی کند. افراز بندی پایگاه داده که به آن شارد کردن (sharding) نیز می‌گویند، یک راه معروف برای حل مشکل فوق است.
#09_Sharding #System_Design
BY Golem Course
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On February 27th, Durov posted that Channels were becoming a source of unverified information and that the company lacks the ability to check on their veracity. He urged users to be mistrustful of the things shared on Channels, and initially threatened to block the feature in the countries involved for the length of the war, saying that he didn’t want Telegram to be used to aggravate conflict or incite ethnic hatred. He did, however, walk back this plan when it became clear that they had also become a vital communications tool for Ukrainian officials and citizens to help coordinate their resistance and evacuations. In view of this, the regulator has cautioned investors not to rely on such investment tips / advice received through social media platforms. It has also said investors should exercise utmost caution while taking investment decisions while dealing in the securities market. Ukrainian forces have since put up a strong resistance to the Russian troops amid the war that has left hundreds of Ukrainian civilians, including children, dead, according to the United Nations. Ukrainian and international officials have accused Russia of targeting civilian populations with shelling and bombardments. Telegram was co-founded by Pavel and Nikolai Durov, the brothers who had previously created VKontakte. VK is Russia’s equivalent of Facebook, a social network used for public and private messaging, audio and video sharing as well as online gaming. In January, SimpleWeb reported that VK was Russia’s fourth most-visited website, after Yandex, YouTube and Google’s Russian-language homepage. In 2016, Forbes’ Michael Solomon described Pavel Durov (pictured, below) as the “Mark Zuckerberg of Russia.” There was another possible development: Reuters also reported that Ukraine said that Belarus could soon join the invasion of Ukraine. However, the AFP, citing a Pentagon official, said the U.S. hasn’t yet seen evidence that Belarusian troops are in Ukraine.
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