# I am the Watcher. I am your guide through this vast new twtiverse.
# 
# Usage:
#     https://watcher.sour.is/api/plain/users              View list of users and latest twt date.
#     https://watcher.sour.is/api/plain/twt                View all twts.
#     https://watcher.sour.is/api/plain/mentions?uri=:uri  View all mentions for uri.
#     https://watcher.sour.is/api/plain/conv/:hash         View all twts for a conversation subject.
# 
# Options:
#     uri     Filter to show a specific users twts.
#     offset  Start index for quey.
#     limit   Count of items to return (going back in time).
# 
# twt range = 1 1
# self = https://watcher.sour.is/conv/ijq2k4a
億級 QPS 微信後臺是如何熔斷降級,防止崩潰的?**
微信作爲月活用戶超過 13 億的國民級應用,每天處理的請求量簡直可以用 “天文數字” 來形容。 想象一下,微信後臺每秒要應對數億次用戶請求——聊天、朋友圈刷屏、微信支付、甚至紅包雨。這麼大的流量衝擊下,系統稍有不慎,可能就會 “崩了”。可事實是,微信後臺一直穩得讓人驚訝。那麼問題來了,微信是怎麼做到面對億級 QPS 的併發請求時,還能穩如泰山、不崩不垮的? 答案就是熔斷、降級和限流這些機制就像我 ⌘ Read more