kubernetesã§gRPCã™ã‚‹ã¨ãã«envoy挟んã§ã¿ãŸã‚ˆ - Qiitakubernetes(今回ã¯GKE内)ã§gRPCã®é€šä¿¡ã‚’å ´åˆã«ã¶ã¡å½“ãŸã‚‹å•é¡Œã¨ã—ã¦ã€ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚·ãƒ³ã‚°ã®å•é¡ŒãŒã‚ã‚Šã¾ã™ã€‚ gRPCã®é€šä¿¡ã¯æ°¸ç¶šåŒ–ã•ã‚Œã‚‹ã®ã§ã€ãã®ã¾ã¾ã®çŠ¶æ…‹ã§ä½¿ã†ã¨ãƒãƒƒã‚¯ã‚¨ãƒ³ãƒ‰ã«ã‚るサービスãŒã‚¹ã‚±ãƒ¼ãƒ«ã—ã¦ã‚‚分散ã•ã‚Œãªã„ã¨ã„ã†ã“ã¨ã«ãªã‚Šã¾ã™ã€‚ 具体例 上記ã®ã‚ˆã†ãªæ§‹æˆã§hoge-gateway(4pod)ã‹ã‚‰hoge-app(10pod)ã«å‘ã‘ã¦ã‚³ãƒã‚¯ã‚·ãƒ§ãƒ³ãƒ—ーリングãŒ1ã§é€šä¿¡ã‚’ã™ã‚‹å ´åˆã€hoge-appãŒæœ€å¤§4podã—ã‹ä½¿ã‚ã‚Œãªã„状態ã«ãªã‚Šã¾ã™ã€‚ 下記ãŒãã®çŠ¶æ…‹ã§ã™ã€‚ GKE Container - CPU usage for hoge-app GKE Container - CPU usage for hoge-gateway 解決方法 ã“れを解決ã™ã‚‹æ‰‹æ®µã¨ã—ã¦gRPCã®clientLoadbalancingを使ã†æ–¹æ³•ãŒã‚ã‚Šã¾ã™ãŒã€clientã«ä¾å˜ã™ã‚‹æ–¹æ³•ã¯ã‚ã¾ã‚Šã‚¹ãƒžãƒ¼ãƒˆ
Envoy (Envoy proxy)ã€Istio ã¨ã¯ï¼Ÿ - Qiita
Envoy: C++ L7 proxy and communication bus
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