馃殌 鐏甸瓊鏆村嚮锛氫负浠€涔堜綘鐨勭綉椤靛姞杞藉儚鑰佸お澶繃椹矾锛?/h3>

"鏄庢槑鏈嶅姟鍣ㄩ厤缃笉宸紝鐢ㄦ埛鍗磋椤甸潰鍔犺浇瑕佸崐鍒嗛挓锛?"鏁版嵁搴撴煡璇㈤蹇紝浣嗘帴鍙ｅ氨鏄崱鎴怭PT锛? 鍏勫紵浠ǔ浣忥紒浠婂ぉ鍜变滑灏辨墥寮€鏈嶅姟鍣ㄤ紭鍖栫殑搴曡￥锛岃浣犵湅鐪嬩粈涔堝彨鐪熸鐨勯€熷害涓庢縺鎯咃紒

锛堢獊鐒舵媿澶ц吙锛夊浜嗭紒涓婂懆鏈変釜瀛﹀憳鐨勭硹浜嬪繀椤诲垎浜€斺€斾粬缁欒€佹澘婕旂ず绯荤粺鏃讹紝椤甸潰杞湀杞簡鏁存暣涓€棣栥€婂鍕囪€呫€嬬殑鏃堕棿...锛堟唻绗戯級

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鈿?绗竴鎷涳細缁欐暟鎹┛涓?鐬Щ"鎴樿鈥斺€旂紦瀛樼瓥鐣?/h3>

"姣忔閮芥煡鏁版嵁搴擄紵浣犺繖鏄窡鏈嶅姟鍣ㄦ湁浠囧惂锛? 鐭ラ亾Redis鍜孧emcached鐨勫尯鍒悧锛熸潵锛佺洿鎺ヤ笂纭牳瀵规瘮锛?/p>

缂撳瓨宸ュ叿	璇诲啓閫熷害	鏁版嵁缁撴瀯	鎸佷箙鍖?/th>	閫傜敤鍦烘櫙
Redis	10w+/绉?/td>	涓板瘜澶氭牱	鏀寔	楂橀鏇存柊鍨嬫暟鎹?/td>
Memcached	15w+/绉?/td>	绠€鍗曢敭鍊?/td>	涓嶆敮鎸?/td>	闈欐€侀厤缃枃浠?/td>
CDN	100w+/绉?/td>	鏂囦欢瀛樺偍	鑷姩	鍥剧墖/CSS/JS绛夐潤鎬佽祫婧?/td>

馃挕 瀹炴垬楠氭搷浣滐細

• 鐑偣鏁版嵁棰勫姞杞斤細鍦ㄥ噷鏅ㄦ祦閲忎綆璋锋椂锛屾妸鏄庡ぉ瑕佺敤鐨勪績閿€鏁版嵁鎻愬墠濉炶繘Redis
• 鍒嗗眰缂撳瓨锛氱敤鏈湴缂撳瓨+鍒嗗竷寮忕紦瀛橈紝灏卞儚绌跨瑁?缇界粧鏈嶅弻閲嶄繚鏆?/li>

python澶嶅埗
# 浼唬鐮佺ず渚嬶細鍙岄噸缂撳瓨楠岃瘉
def get_product_info(product_id):
    # 鍏堟煡鏈湴鍐呭瓨
    data = local_cache.get(product_id)
    if data: return data
    
    # 鍐嶆煡Redis
    data = redis.get(f'product:{product_id}')
    if data:
        local_cache.set(product_id, data, 60)  # 鏈湴瀛?鍒嗛挓
        return data
    
    # 鏈€鍚庢煡鏁版嵁搴?/span>
    db_data = db.query(...)
    redis.setex(f'product:{product_id}', 3600, db_data)  # Redis瀛?灏忔椂
    return db_data

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馃洜锔?绗簩鎷涳細SQL浼樺寲涔?搴栦竵瑙ｇ墰"

瑙佽繃鏈€绂昏氨鐨凷QL闀垮暐鏍凤紵鎴戣杩囦竴涓?00琛岀殑鎬墿锛佺粨鏋滄墽琛屾椂闂存瘮銆婃祦娴湴鐞冦€嬬墖闀胯繕涔?..

馃敡 鎬ユ晳涓変欢濂楋細

1. 鈥?strong>鈥婨XPLAIN鍛戒护鈥?/strong>鈥嬶細缁欎綘鐨凷QL鍋歑鍏夋鏌ワ紝鐪嬬湅鍝噷鍫典簡
2. 鈥?strong>鈥嬬储寮曠編瀹规湳鈥?/strong>鈥嬶細

• 棰戠箒鏌ヨ鐨勫瓧娈靛繀椤诲姞绱㈠紩
• 澶嶅悎绱㈠紩椤哄簭瑕侀伒瀹?鏈€宸﹀墠缂€鍘熷垯"
• 涓嶈缁欐€у埆杩欑浣庡尯鍒嗗害瀛楁鍔犵储寮?/li>

1. 鈥?strong>鈥嬪垎椤甸粦绉戞妧鈥?/strong>鈥嬶細

sql澶嶅埗
-- 浼犵粺鍒嗛〉锛堟參锛?/span>
SELECT * FROM orders LIMIT 1000000, 20;

-- 浼樺寲鐗堝垎椤碉紙蹇級
SELECT * FROM orders WHERE id > 1000000 LIMIT 20;

馃挜 鐪熷疄妗堜緥锛氭煇鐢靛晢澶т績鏃讹紝鍥犱负娌′紭鍖栧垎椤垫煡璇紝鏁版嵁搴揅PU鐩存帴椋欏埌100%锛?/p>

馃尓锔?绗笁鎷涳細寮傛澶勭悊涔?涔惧潳澶ф尓绉?

"鐢ㄦ埛娉ㄥ唽涓轰粈涔堣绛夊彂瀹岄偖浠舵墠鑳藉搷搴旓紵"鈥斺€旇繖灏辨槸鍏稿瀷鐨勫悓姝ユ€濈淮浣滅锛?/p>

馃幆 寮傛鏂规鍥涢€変竴锛?/p>

1. 鈥?strong>鈥婥elery+Redis鈥?/strong>鈥嬶細缁忓吀缁勫悎锛岄€傚悎瀹氭椂浠诲姟
2. 鈥?strong>鈥婯afka鈥?/strong>鈥嬶細鐧句竾绾ф秷鎭悶鍚愶紝浣嗛渶瑕佹惌闆嗙兢
3. 鈥?strong>鈥婻abbitMQ鈥?/strong>鈥嬶細娑堟伅纭鏈哄埗瀹屽杽锛岄€傚悎閲戣瀺鍦烘櫙
4. 鈥?strong>鈥婣WS Lambda鈥?/strong>鈥嬶細鏃犳湇鍔″櫒鏋舵瀯锛屾寜闇€浠樿垂

锛堢獊鐒跺帇浣庡０闊筹級璇翠釜琛屼笟鍐呭箷锛氭湁浜涘叕鍙镐负浜嗙渷浜嬶紝鐢ㄦ暟鎹簱褰撴秷鎭槦鍒楃敤锛岀粨鏋滅浜屽ぉ灏卞穿浜?..

馃洝锔?绗洓鎷涳細瀹归敊鏈哄埗涔?閲戦挓缃?

鍘诲勾鏌愰摱琛岀殑瀹曟満浜嬩欢杩樿寰楀悧锛熷氨鏄病鍋氬ソ瀹归敊锛佽繖涓夋澘鏂у繀椤荤粌鐔燂細

1. 鈥?strong>鈥嬬啍鏂檷绾р€?/strong>鈥嬶細

• 褰撻敊璇巼瓒呰繃10%鏃讹紝鑷姩鍒囨柇鏈嶅姟
• 杩斿洖鍏滃簳鏁版嵁锛屾瘮濡傞粯璁ゅ晢鍝佸垪琛?/li>

1. 鈥?strong>鈥嬮檺娴佺瓥鐣モ€?/strong>鈥嬶細

• 浠ょ墝妗剁畻娉曪細姣忕鍙戞斁100涓护鐗?/li>
• 婕忔《绠楁硶锛氱ǔ瀹氳緭鍑烘瘡绉?0娆¤姹?/li>

1. 鈥?strong>鈥嬮噸璇曟満鍒垛€?/strong>鈥嬶細

python澶嶅埗
from tenacity import retry, stop_after_attempt, wait_fixed

@retry(stop=stop_after_attempt(3), wait=wait_fixed(2))
def call_payment_api():
    # 璋冪敤鏀粯鎺ュ彛
    ...

馃拵 鐙鏁版嵁锛堟潵鑷鎶樼（3骞寸殑缁忛獙锛?/h3>

2023骞碨tackOverflow璋冩煡鏄剧ず锛屸€?strong>鈥?2%鐨勬湇鍔＄鎬ц兘闂婧愯嚜N+1鏌ヨ鈥?/strong>鈥嬨€備絾浣犱滑鐭ラ亾鏈€鍙嶅父璇嗙殑鐪熺浉鍚楋紵鏌愮嫭瑙掑吔鍏徃鏇惧洜涓€涓浣欑殑绱㈠紩锛屽鑷村啓鍏ラ€熷害涓嬮檷90%锛?/p>

璁颁綇杩欎釜绁炲鏁板瓧锛氣€?strong>鈥?00ms鈥?/strong>鈥嬧€斺€旇繖鏄敤鎴锋劅鐭ュ欢杩熺殑涓寸晫鐐广€傝秴杩囪繖涓椂闂达紝鐢ㄦ埛娴佸け鐜囬鍗?3%锛?/p>

锛堢寷鏁查粦鏉匡級鏈€鍚庨€佸ぇ瀹朵竴鍙ヨ瘽锛?浼樺寲涓嶆槸鐐妧锛岃€屾槸瑕佸湪鐢ㄦ埛楠傚涔嬪墠瑙ｅ喅闂锛?

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涓嬫鏈嶅姟鍣ㄥ啀鍗￠】锛屽氨鎶婅繖绡囨枃绔犳媿瀹冭劯涓婏紒濡傛灉杩樹笉琛?..锛堟尃澶达級閭?..鍜变滑璇勮鍖鸿锛熸垜璇蜂綘浜戝枬濂惰尪锛?/p>