Forwarded from Pavel Durov
I see 3 million new users signed up for Telegram within the last 24 hours.
Good. We have true privacy and unlimited space for everyone.
Good. We have true privacy and unlimited space for everyone.
Pavel Durov
I see 3 million new users signed up for Telegram within the last 24 hours. Good. We have true privacy and unlimited space for everyone.
شاید به قطع بودن سرویس facebook در برخی کشور ها مرتبط باشد 🤔
#book
Designing Data-Intensive
Applications
The Big Ideas Behind Reliable, Scalable,
and Maintainable Systems
لطفا مطالعه کنید 😊
Designing Data-Intensive
Applications
The Big Ideas Behind Reliable, Scalable,
and Maintainable Systems
لطفا مطالعه کنید 😊
یک قیاس خوب از hinted handoff در بالا آورده شده است
Sloppy quorums are optional in all common Dynamo implementations. In Riak they
are enabled by default, and in Cassandra and Voldemort they are disabled by default
Sloppy quorums are optional in all common Dynamo implementations. In Riak they
are enabled by default, and in Cassandra and Voldemort they are disabled by default
سناریو دیگر برای پیاده سازی replication که میتواند مشکل ایجاد کند: عمل نوشتن با موفقیت انجام میشود ولی مقادیر قدیمی در read برگردانده میشوند
سه مشکل اصلی در طراحی سیستم های توزیع شده:
۱. partial failures and unreliable network
۲. unreliable clocks
۳. processing pauses (e.g.: gc)
۱. partial failures and unreliable network
۲. unreliable clocks
۳. processing pauses (e.g.: gc)
در nosqlها معمولا از این داده ساختار استفاده میشود
https://www.geeksforgeeks.org/skip-list/
https://www.geeksforgeeks.org/skip-list-set-2-insertion/
https://www.openmymind.net/Building-A-Skiplist/
https://people.ok.ubc.ca/ylucet/DS/SkipList.html
#skip_list
https://www.geeksforgeeks.org/skip-list/
https://www.geeksforgeeks.org/skip-list-set-2-insertion/
https://www.openmymind.net/Building-A-Skiplist/
https://people.ok.ubc.ca/ylucet/DS/SkipList.html
#skip_list
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