{"id":26801,"date":"2025-12-07T06:08:23","date_gmt":"2025-12-07T06:08:23","guid":{"rendered":"https:\/\/pokecon.jp\/job\/?p=26801"},"modified":"2025-12-07T06:08:23","modified_gmt":"2025-12-07T06:08:23","slug":"%e6%9c%ac%e7%95%aa%e7%92%b0%e5%a2%83%e3%81%a7%e3%81%97%e3%81%8b%e8%b5%b7%e3%81%93%e3%82%89%e3%81%aa%e3%81%84-goroutines-%e6%80%a5%e5%a2%97%e5%95%8f%e9%a1%8c%e3%81%a8%e8%a7%a3%e6%b1%ba%e3%81%be","status":"publish","type":"post","link":"https:\/\/pokecon.jp\/job\/26801\/","title":{"rendered":"\u672c\u756a\u74b0\u5883\u3067\u3057\u304b\u8d77\u3053\u3089\u306a\u3044 Goroutines \u6025\u5897\u554f\u984c\u3068\u89e3\u6c7a\u307e\u3067\u306e\u9053\u306e\u308a | \u30e1\u30eb\u30ab\u30ea\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0"},"content":{"rendered":"\n<\/p>\n<div>\n<p>\u3053\u3093\u306b\u3061\u306f\u3002Backend Enablement Team \u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u306e <a target=\"_blank\" href=\"https:\/\/x.com\/goccy54\">@goccy<\/a> \u3067\u3059\u3002<br \/>\u3053\u306e\u8a18\u4e8b\u306f\u3001<a target=\"_blank\" href=\"https:\/\/engineering.mercari.com\/blog\/entry\/20251126-merpay-mercoin-advent-calendar-2025\/\">Merpay &amp; Mercoin Advent Calendar 2025<\/a> \u306e7\u65e5\u76ee\u306e\u8a18\u4e8b\u3067\u3059\u3002<\/p>\n<p>\u6642\u306f\u4eca\u304b\u30894\u30f6\u6708\u307b\u3069\u524d\u306e8\u6708\u4e0b\u65ec\u3001\u3068\u3066\u3082\u6691\u3044\u65e5\u3067\u3057\u305f\u3002\u73cd\u3057\u304f\u30c1\u30fc\u30e0\u306e On Caller \u306e PagerDuty \u304c\u30a2\u30e9\u30fc\u30c8\u3092\u4e0a\u3052\u307e\u3057\u305f\u3002\u5185\u5bb9\u306f Gateway \u304b\u3089\u3042\u308b\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u3078\u306e\u547c\u3073\u51fa\u3057\u304c\u7a81\u7136 Timeout \u3059\u308b\u3088\u3046\u306b\u306a\u308a\u3001gRPC \u306e Deadline Exceeded \u304c\u6025\u5897\u3057\u3066\u3044\u308b\u3068\u3044\u3046\u3082\u306e\u3067\u3057\u305f\u3002\u5bfe\u8c61\u306e\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u306f <a target=\"_blank\" href=\"https:\/\/github.com\/mercari\/grpc-federation\">gRPC Federation<\/a> \u3092\u5229\u7528\u3057\u305f BFF ( Backend for Frontend ) \u3067\u3001\u57fa\u672c\u7684\u306b\u306f\u3055\u3089\u306b\u5f8c\u308d\u306e\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u306b\u30d7\u30ed\u30ad\u30b7\u3059\u308b\u3060\u3051\u306e\u5358\u7d14\u306a\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002\u5c11\u3057\u8abf\u67fb\u3059\u308b\u3068\u3001\u8a72\u5f53\u306e gRPC \u30e1\u30bd\u30c3\u30c9\u306b\u306f Timeout \u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u304b\u3063\u305f\u305f\u3081\u3001Gateway \u5074\u3067\u8a2d\u5b9a\u3057\u305f Timeout ( 30\u79d2 ) \u3092\u8d85\u904e\u3057\u305f\u969b\u306b\u3001Gateway \u5074\u3067\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u30ad\u30e3\u30f3\u30bb\u30eb\u3059\u308b\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u51fa\u3066\u3044\u308b\u30a8\u30e9\u30fc\u3060\u3068\u308f\u304b\u308a\u307e\u3057\u305f\u3002\u3053\u306e\u9593\u3001BFF \u5074\u3067\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u3066\u3044\u306a\u3044\u306b\u3082\u304b\u304b\u308f\u3089\u305a Goroutines \u306f\u5897\u3048\u7d9a\u3051\u3066\u3044\u308b\u3053\u3068\u304b\u3089\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u51e6\u7406\u3067\u304d\u305a\u306b\u30b5\u30fc\u30d0\u30fc\u4e0a\u3067\u6ede\u7559\u3057\u3066\u3044\u308b\u3088\u3046\u306a\u72b6\u6cc1\u3060\u3068\u63a8\u6e2c\u3067\u304d\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u305d\u308c\u4ee5\u4e0a\u306e\u8abf\u67fb\u304c\u56f0\u96e3\u306a\u3053\u3068\u3068\u3001\u554f\u984c\u304c\u8d77\u304d\u3066\u3044\u308b\u306e\u304c\u4e00\u90e8\u306e Kubernetes Pod \u3060\u3051\u3060\u3063\u305f\u305f\u3081\u3001\u8a72\u5f53\u306e Pod \u3092\u518d\u8d77\u52d5\u3059\u308b\u3053\u3068\u3092\u8a66\u3057\u305f\u3068\u3053\u308d\u3001\u7121\u4e8b\u89e3\u6c7a\u306b\u5411\u304b\u3044\u307e\u3057\u305f\u3002\u305d\u306e\u65e5\u306f\u55b6\u696d\u6642\u9593\u304c\u7d42\u4e86\u9593\u969b\u3060\u3063\u305f\u3053\u3068\u3082\u3042\u308a\u3001\u3082\u3084\u3082\u3084\u3057\u305f\u3082\u306e\u3092\u62b1\u3048\u3064\u3064\u3001\u3044\u3063\u305f\u3093\u89e3\u6563\u3057\u3066\u5e30\u9014\u306b\u3064\u304f\u3053\u3068\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u3053\u306e\u3068\u304d\u306f\u307e\u3060\u3001\u3053\u308c\u304b\u3089\u9577\u3044\u95d8\u3044\u304c\u5f85\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u30c1\u30fc\u30e0\u306e\u8ab0\u3082\u77e5\u308b\u7531\u3082\u3042\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002<\/p>\n<p>\u30b5\u30fc\u30d3\u30b9\u9593\u306e\u95a2\u4fc2\u56f3<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/prd-engineering-asset\/2025\/12\/c52c28b5-day7\u3011merpay-mercoin-advent-calendar-2025-engineering-blog-draft-template-e1764916208261.png\"\/><\/p>\n<p>\u305d\u308c\u304b\u3089\u4e8c\u65e5\u5f8c\u3001\u5148\u65e5\u306e\u554f\u984c\u306e\u539f\u56e0\u7a76\u660e\u3082\u308d\u304f\u306b\u3067\u304d\u3066\u3044\u306a\u3044\u3088\u3046\u306a\u72b6\u6cc1\u3067\u3001\u518d\u3073\u30a2\u30e9\u30fc\u30c8\u304c\u4e0a\u304c\u308a\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u4eca\u56de\u306f\u524d\u56de\u3068\u306f\u5225\u306e\u30b5\u30fc\u30d3\u30b9\u3067\u3001\u304b\u3064 gRPC Federation \u3092\u5229\u7528\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u73fe\u8c61\u306f\u524d\u56de\u540c\u69d8\u3001\u7a81\u7136\u8a72\u5f53\u306e\u30b5\u30fc\u30d3\u30b9\u306e\u7279\u5b9a\u306e Pod \u3060\u3051 Goroutines \u304c\u6025\u5897\u3057\u5fdc\u7b54\u3057\u306a\u304f\u306a\u308b\u3068\u3044\u3046\u554f\u984c\u3067\u3001Pod \u3092\u4f5c\u308a\u76f4\u3059\u3068\u6539\u5584\u3059\u308b\u3068\u3044\u3046\u73fe\u8c61\u3082\u540c\u69d8\u3067\u3057\u305f\u3002<\/p>\n<p>\u7acb\u3066\u7d9a\u3051\u306b gRPC Federation \u3092\u5229\u7528\u3059\u308b\u8907\u6570\u306e\u30b5\u30fc\u30d3\u30b9\u3067\u540c\u69d8\u306e\u554f\u984c\u304c\u8d77\u3053\u3063\u305f\u305f\u3081\u3001\u539f\u56e0\u304c gRPC Federation \u5074\u306b\u3042\u308a\u305d\u3046\u3060\u3068\u3044\u3046\u7dda\u304c\u6fc3\u539a\u306b\u306a\u3063\u3066\u304d\u307e\u3057\u305f\u3002\u3053\u308c\u306f\u3068\u3066\u3082\u307e\u305a\u3044\u72b6\u6cc1\u3067\u3059\u3002gRPC Federation \u3092\u5229\u7528\u3059\u308b\u30b5\u30fc\u30d3\u30b9\u306f 20 \u3092\u8d85\u3048\u307e\u3059\u3002<\/p>\n<p>\u7a81\u5982\u3068\u3057\u3066\u6697\u96f2\u304c\u5782\u308c\u8fbc\u3081\u307e\u3059\u3002\u3053\u306e\u65e5\u304b\u3089\u3001\u30c1\u30fc\u30e0\u7dcf\u51fa\u3067\u3053\u306e\u554f\u984c\u306b\u5bfe\u51e6\u3059\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<h2>Lock \u7bc4\u56f2\u306e\u6700\u5c0f\u5316<\/h2>\n<p>\u307e\u305a\u3001\u8a72\u5f53\u306e\u30b5\u30fc\u30d3\u30b9\u306e\u76f4\u8fd1\u306e\u30ea\u30ea\u30fc\u30b9\u306b\u542b\u307e\u308c\u308b gRPC Federation \u306e\u5909\u66f4\u70b9\u306a\u3069\u3092\u8abf\u67fb\u3057\u307e\u3057\u305f\u304c\u3001\u3053\u3061\u3089\u306f\u7279\u306b\u602a\u3057\u3044\u3082\u306e\u306f\u306a\u3044\u3068\u3044\u3046\u7d50\u8ad6\u306b\u81f3\u308a\u307e\u3057\u305f\u3002\u6b21\u306b\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u6ede\u7559\u3057\u7d9a\u3051\u308b\u3053\u3068\u304b\u3089\u3001gRPC Federation \u5074\u3067\u53d6\u5f97\u3057\u3066\u3044\u308b Lock \u306e\u5f85\u3061\u6642\u9593\u304c\u9577\u3059\u304e\u305f\u308a\u3001Dead Lock \u3057\u3066\u3044\u308b\u30b1\u30fc\u30b9\u304c\u306a\u3044\u304b\u3092\u7591\u3044\u307e\u3057\u305f\u3002\u8a72\u5f53\u306e\u30b5\u30fc\u30d3\u30b9\u3067\u306f Cloud Profiler \u3092\u5c0e\u5165\u3057\u3066\u304a\u308a\u3001\u305d\u306e\u7d50\u679c\u304b\u3089 Lock \u5f85\u3061\u3092\u3057\u3066\u3044\u308b\u30b9\u30ec\u30c3\u30c9\u304c\u5927\u91cf\u306b\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002Lock \u7b87\u6240\u3068\u3057\u3066\u8907\u6570\u306e\u5019\u88dc\u304c\u3042\u308a\u307e\u3057\u305f\u304c\u3001\u305d\u308c\u3089\u3092 Claude Code \u3092\u4f7f\u3063\u3066\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u7d50\u679c\u3092\u53c2\u7167\u3057\u306a\u304c\u3089\u8b70\u8ad6\u3057\u305f\u3068\u3053\u308d\u3001\u3044\u305a\u308c\u3082 Dead Lock \u3067\u306a\u3044\u3053\u3068\u3082\u308f\u304b\u308a\u307e\u3057\u305f\u3002\u6b21\u306e\u53ef\u80fd\u6027\u3068\u3057\u3066\u3001Lock \u3092\u89e3\u653e\u3059\u308b\u307e\u3067\u306e\u6642\u9593\u304c\u9577\u304f\u3001Lock \u3092\u89e3\u653e\u3059\u308b\u3088\u308a\u3082 Lock \u306e\u5f85\u3061\u884c\u5217\u306b\u52a0\u308f\u308b\u30b9\u30ec\u30c3\u30c9\u306e\u65b9\u304c\u591a\u304f\u306a\u308a\u3001\u7d50\u679c Goroutines \u304c\u5897\u3048\u7d9a\u3051\u3066\u3044\u308b\u53ef\u80fd\u6027\u3092\u8003\u3048\u307e\u3057\u305f\u3002\u305d\u3053\u3067\u3001\u307e\u305a\u306f Cloud Profiler \u304c\u6319\u3052\u305f Lock \u7b87\u6240\u306e\u3046\u3061\u3001Lock \u7bc4\u56f2\u3092\u6700\u5c0f\u5316\u3059\u308b\u3053\u3068\u3067\u4e0d\u5fc5\u8981\u306b\u9577\u304f Lock \u3092\u53d6\u5f97\u3057\u3066\u3044\u308b\u7b87\u6240\u3092\u306a\u304f\u3057\u307e\u3057\u305f\u3002( <a target=\"_blank\" href=\"https:\/\/github.com\/mercari\/grpc-federation\/pull\/323\">\u8a72\u5f53\u306ePR<\/a> )<\/p>\n<p>\u3057\u304b\u3057\u6570\u65e5\u5f8c\u3001\u307e\u305f Goroutines \u304c\u6025\u5897\u3057\u30a2\u30e9\u30fc\u30c8\u304c\u4e0a\u304c\u308a\u307e\u3057\u305f\u3002\u3053\u306e\u6642\u70b9\u304b\u3089\u3001\u4e00\u65e5\u306b3\u301c 5\u56de\u7a0b\u5ea6\u4e0d\u5b9a\u671f\u306b\u30a2\u30e9\u30fc\u30c8\u304c\u9cf4\u308a\u7d9a\u3051\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u3001Pod \u3092\u518d\u8d77\u52d5\u3059\u308b\u3060\u3051\u3068\u306f\u3044\u3048\u3001On Caller \u306e\u8ca0\u62c5\u304c\u9855\u8457\u306b\u5897\u3048\u307e\u3057\u305f\u3002\u305f\u3060\u3001Lock \u7bc4\u56f2\u3092\u72ed\u3081\u305f\u3053\u3068\u3067\u3001Lock \u5f85\u3061\u3092\u3057\u3066\u3044\u308b\u7b87\u6240\u306e\u307b\u3068\u3093\u3069\u304c gRPC Federation \u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u7b87\u6240\u3067\u3042\u308b\u3068\u308f\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n<h2>gRPC Federation \u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3<\/h2>\n<p>\u3053\u3053\u3067\u3001\u4ee5\u964d\u306e\u8aac\u660e\u3092\u7406\u89e3\u3057\u3084\u3059\u304f\u3059\u308b\u305f\u3081\u306b gRPC Federation \u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002gRPC Federation \u81ea\u4f53\u306e\u8a73\u3057\u3044\u8aac\u660e\u306f<a target=\"_blank\" href=\"https:\/\/engineering.mercari.com\/blog\/entry\/20240401-4f426bd460\/\">\u79c1\u304c\u4ee5\u524d\u66f8\u3044\u305f\u5225\u8a18\u4e8b<\/a>\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u7c21\u5358\u306b\u8aac\u660e\u3059\u308b\u3068\u3001gRPC Federation \u306f Protocol Buffers \u4e0a\u3067\u8a18\u8ff0\u3067\u304d\u308b\u578b\u63a8\u8ad6\u4ed8\u304d\u9759\u7684\u578b\u4ed8\u3051\u8a00\u8a9e\u3067\u3042\u308a\u3001\u5f0f\u306e\u8a55\u4fa1\u306b\u306f <a target=\"_blank\" href=\"https:\/\/github.com\/google\/cel-spec\/blob\/master\/doc\/langdef.md#language-definition\">CEL( Common Expression Language )<\/a> \u3092\u5229\u7528\u3057\u3066\u3044\u307e\u3059\u3002 OSS \u3068\u3057\u3066\u958b\u767a\u3057\u3066\u3044\u308b\u305f\u3081\u3001Protocol Buffers \u4e0a\u3067\u8a18\u8ff0\u3059\u308b CEL \u5f0f\u306e\u4e2d\u3067\u30c9\u30e1\u30a4\u30f3\u56fa\u6709\u306e\u30ed\u30b8\u30c3\u30af\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306f\u901a\u5e38\u3067\u304d\u307e\u305b\u3093\u3002\u4f8b\u3048\u3070\u8a8d\u8a3c\u51e6\u7406\u3092\u4f8b\u306b\u3068\u308b\u3068\u3001gRPC \u306e metadata \u304b\u3089 \u8a8d\u8a3c\u7528\u306e JWT \u3092\u53d6\u308a\u51fa\u3057\u3066\u30d1\u30fc\u30b9\u3057\u3001\u5f97\u3089\u308c\u305f\u5024\u3092\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3057\u305f\u308a\u3001\u3055\u3089\u306b\u5225\u306e\u5024\u3092\u53d6\u5f97\u3059\u308b\u3088\u3046\u306a\u51e6\u7406\u306f CEL \u306e\u8868\u73fe\u529b\u306e\u7bc4\u56f2\u3092\u8d85\u3048\u3066\u3044\u307e\u3059\u3002\u3067\u3059\u304c\u3001\u3053\u3046\u3044\u3063\u305f\u51e6\u7406\u306f gRPC Federation \u3092\u5229\u7528\u3059\u308b\u3059\u3079\u3066\u306e\u30b5\u30fc\u30d3\u30b9\u3067\u5fc5\u8981\u306b\u306a\u308b\u5171\u901a\u51e6\u7406\u3067\u3082\u3042\u308a\u307e\u3059\u3002<br \/>gRPC Federation \u3067\u306f\u3053\u306e\u3088\u3046\u306a\u8981\u4ef6\u306e\u305f\u3081\u306b\u3001CEL \u5f0f\u306e\u4e2d\u3067\u5229\u7528\u3067\u304d\u308b API \u3092\u72ec\u81ea\u306b\u5b9a\u7fa9\u3057\u3001\u305d\u306e\u5b9f\u88c5\u3092 Go \u3067\u66f8\u3044\u3066 WebAssembly \u306b\u5909\u63db\u3057\u3066\u5229\u7528\u3059\u308b<a target=\"_blank\" href=\"https:\/\/github.com\/mercari\/grpc-federation\/blob\/main\/docs\/cel_plugin.md\">\u30d7\u30e9\u30b0\u30a4\u30f3\u30b7\u30b9\u30c6\u30e0\u3092\u7528\u610f\u3057\u3066\u3044\u307e\u3059<\/a>\u3002<\/p>\n<p>Go \u3067\u30d7\u30e9\u30b0\u30a4\u30f3\u30b7\u30b9\u30c6\u30e0\u3092\u63d0\u4f9b\u3059\u308b\u5834\u5408\u3001WebAssembly \u3092\u5229\u7528\u3059\u308b\u306e\u304c\u6700\u5584\u3067\u3042\u308b\u3053\u3068\u306f\u3001\u5148\u65e5 Go Conference 2025 \u3067\u767a\u8868\u3057\u3066\u304d\u305f (  <a target=\"_blank\" href=\"https:\/\/speakerdeck.com\/goccy\/go-de-webassembly-woli-yong-sita-shi-yong-de-napuraguinsisutemunogou-zhu-fang-fa\">Go \u3067 WebAssembly \u3092\u5229\u7528\u3057\u305f\u5b9f\u7528\u7684\u306a\u30d7\u30e9\u30b0\u30a4\u30f3\u30b7\u30b9\u30c6\u30e0\u306e\u69cb\u7bc9\u65b9\u6cd5<\/a> ) \u306e\u3067\u3001\u8a73\u3057\u304f\u306f\u305d\u3061\u3089\u3092\u53c2\u7167\u3057\u3066\u6b32\u3057\u3044\u306e\u3067\u3059\u304c\u3001\u91cd\u8981\u306a\u3053\u3068\u3068\u3057\u3066\u3001WebAssembly \u3092\u5229\u7528\u3059\u308b\u5834\u5408\u306b\u6b21\u306e\u3088\u3046\u306a\u5236\u7d04\u304c\u3042\u308b\u3053\u3068\u3092\u77e5\u3063\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>WASI P1 \u3068\u3044\u3046\u4ed5\u69d8\u306b\u6cbf\u3063\u3066\u52d5\u4f5c\u3059\u308b\u304c\u3001P1 \u306e\u6bb5\u968e\u3067\u306f\u30b9\u30ec\u30c3\u30c9\u306e\u4ed5\u69d8\u306f\u5b58\u5728\u3057\u306a\u3044<\/li>\n<li>\u30b9\u30ec\u30c3\u30c9\u306e\u4ed5\u69d8\u304c\u306a\u3044\u305f\u3081\u3001\u5fc5\u305a\u30b7\u30f3\u30b0\u30eb\u30b9\u30ec\u30c3\u30c9\u3067\u52d5\u4f5c\u3059\u308b<\/li>\n<li>WebAssembly \u3092\u52d5\u4f5c\u3055\u305b\u308b\u305f\u3081\u306b\u4f5c\u308b\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306f\u3001\u8d77\u52d5\u3059\u308b\u3060\u3051\u3067\u6570\u5341MB\u306e\u30e1\u30e2\u30ea\u3092\u6d88\u8cbb\u3059\u308b\u305f\u3081\u3001\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u7121\u5236\u9650\u306b\u4f5c\u308b\u3088\u3046\u306a\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306f\u63a1\u7528\u3067\u304d\u306a\u3044<\/li>\n<\/ul>\n<p>\u3053\u308c\u3089\u306e\u5236\u7d04\u306e\u305f\u3081\u3001gRPC Federation \u3067\u306f\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u8a55\u4fa1\u3059\u308b\u969b\u3001gRPC Service \u3054\u3068\u306b\u30d7\u30e9\u30b0\u30a4\u30f3\u306b\u5bfe\u3059\u308b WebAssembly \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4e00\u3064\u3060\u3051\u4f5c\u6210\u3057\u3001\u8a55\u4fa1\u306e\u524d\u5f8c\u3067 Lock \u3092\u53d6\u5f97\u3057\u3066\u76f4\u5217\u306b\u51e6\u7406\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3064\u307e\u308a\u3001\u30b5\u30fc\u30d0\u30fc\u306b\u5bfe\u3057\u3066\u3069\u3093\u306a\u306b\u4e26\u884c\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u3082\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u51e6\u7406\u306e\u6bb5\u968e\u3067\u306f\u76f4\u5217\u5b9f\u884c\u306b\u306a\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>Cloud Profiler \u306e\u7d50\u679c\u3001\u3053\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u8a55\u4fa1\u6642\u306b\u53d6\u5f97\u3059\u308b Lock \u5f85\u3061\u304c\u5927\u91cf\u306b\u767a\u751f\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u539f\u56e0\u3060\u3068\u308f\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u307e\u305f\u3001\u4ee5\u964d\u3067\u306f\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u8a55\u4fa1\u306b\u969b\u3057\u3066\u3001WebAssembly \u30e9\u30f3\u30bf\u30a4\u30e0\u3092\u52d5\u304b\u3059Go \u5074\u3092\u30db\u30b9\u30c8\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u5074\u3092\u30b2\u30b9\u30c8\u3068\u547c\u79f0\u3057\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<h2>\u554f\u984c\u306e\u518d\u73fe\u306b\u6311\u6226<\/h2>\n<p>\u5177\u4f53\u7684\u306a\u539f\u56e0\u304c\u308f\u304b\u3063\u3066\u304d\u305f\u3068\u3053\u308d\u3067\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u8a55\u4fa1\u3092\u9ad8\u983b\u5ea6\u304b\u3064\u5927\u91cf\u306b\u884c\u3046\u3053\u3068\u3067\u554f\u984c\u304c\u518d\u73fe\u3059\u308b\u304b\u3092\u8a66\u3057\u59cb\u3081\u307e\u3057\u305f\u3002\u30ed\u30fc\u30ab\u30eb\u3067\u7acb\u3061\u4e0a\u3052\u305f\u30b5\u30fc\u30d0\u30fc\u306b\u5bfe\u3057\u3066\u9ad8\u8ca0\u8377\u306a\u72b6\u6cc1\u3092\u4f5c\u3063\u305f\u308a\u3001\u958b\u767a\u74b0\u5883\u306b\u30c7\u30d7\u30ed\u30a4\u3057\u3066\u3044\u308b\u30b5\u30fc\u30d0\u30fc\u306b\u5bfe\u3057\u3066\u30ea\u30af\u30a8\u30b9\u30c8\u3059\u308b\u306a\u3069\u3055\u307e\u3056\u307e\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u30c1\u30fc\u30e0\u7dcf\u51fa\u3067\u8a66\u3057\u307e\u3057\u305f\u304c\u3001\u554f\u984c\u304c\u8d77\u3053\u3063\u305f gRPC \u30e1\u30bd\u30c3\u30c9\u306b\u5bfe\u3057\u3066 1000rps \u3092\u8d85\u3048\u308b\u8ca0\u8377\u3092 30\u5206\u8fd1\u304f\u304b\u3051\u7d9a\u3051\u3066\u3082\u518d\u73fe\u306b\u306f\u81f3\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002<\/p>\n<p>\u3053\u3053\u3067\u3001\u554f\u984c\u3092\u518d\u73fe\u3059\u308b\u3053\u3068\u304c\u96e3\u3057\u3044\u3053\u3068\u304c\u5206\u304b\u3063\u305f\u305f\u3081\u3001\u554f\u984c\u767a\u751f\u6642\u306b\u672c\u756a\u74b0\u5883\u3067\u53d6\u308c\u308b\u60c5\u5831\u3092\u5897\u3084\u3059\u65b9\u5411\u3082\u8003\u3048\u59cb\u3081\u307e\u3057\u305f\u3002\u5177\u4f53\u7684\u306b\u306f\u5bfe\u8c61\u306e\u30b5\u30fc\u30d3\u30b9\u306b pprof \u306b\u3088\u308b\u8a08\u6e2c\u7528\u306e\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3092\u4ed5\u8fbc\u3093\u3067\u304a\u304d\u3001\u554f\u984c\u304c\u8d77\u304d\u305f\u3068\u304d\u306b\u5bfe\u8c61\u306e Pod \u306e\u30b5\u30fc\u30d0\u30fc\u306b\u5bfe\u3057\u3066\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u3067\u3001 Cloud Profiler \u3067\u306f\u308f\u304b\u3089\u306a\u3044\u60c5\u5831\u3092\u3068\u308c\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n<h2>pprof \u306b\u3088\u308b\u8abf\u67fb<\/h2>\n<p>pprof \u3092\u4ed5\u8fbc\u3093\u3060\u7fcc\u65e5\u3001\u554f\u984c\u304c\u518d\u767a\u3057\u307e\u3057\u305f\u3002\u4eca\u56de\u306f\u5bfe\u8c61\u306e Pod \u3092\u518d\u8d77\u52d5\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001Pod \u3092 Kubernetes Service \u304b\u3089\u5207\u308a\u96e2\u3057\u3001\u5207\u308a\u96e2\u3057\u305f\u30b5\u30fc\u30d0\u30fc\u306e pprof \u306e\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306b\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u308b\u3053\u3068\u3067\u5404\u7a2e\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3057\u307e\u3057\u305f\u3002<br \/>\u53d6\u5f97\u3057\u305f\u7d50\u679c\u3092\u5bfe\u8c61\u306b\u3001\u4f8b\u3048\u3070 <code>go tool pprof -traces<\/code> \u3092\u5b9f\u884c\u3059\u308b\u3068\u3001\u8a08\u6e2c\u6642\u306b\u52d5\u3044\u3066\u3044\u305f\u3059\u3079\u3066\u306e Goroutines \u3092\u30b9\u30bf\u30c3\u30af\u30c8\u30ec\u30fc\u30b9\u4ed8\u304d\u3067\u628a\u63e1\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3067\u3059\u304c\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u95a2\u9023\u306e\u30b9\u30bf\u30c3\u30af\u30c8\u30ec\u30fc\u30b9\u3092\u898b\u308b\u3068\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u8a55\u4fa1\u306b\u969b\u3057\u3066\u30db\u30b9\u30c8\u3068\u30b2\u30b9\u30c8\u305d\u308c\u305e\u308c\u304c\u76f8\u624b\u304b\u3089\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u5f85\u3063\u3066\u3044\u308b\u72b6\u614b\u306b\u306a\u3063\u3066\u3044\u307e\u3057\u305f\u3002\u3053\u308c\u306f\u3042\u308a\u3048\u306a\u3044\u72b6\u6cc1\u3067\u3059\u3002\u30db\u30b9\u30c8\u306f\u6b63\u3057\u304f\u30b2\u30b9\u30c8\u306b\u8981\u6c42\u3092\u4f1d\u3048\u305f\u3068\u601d\u3063\u3066\u3044\u308b\u304c\u4f1d\u308f\u3063\u3066\u3044\u306a\u3044\u3001\u3082\u3057\u304f\u306f\u305d\u306e\u9006\u306e\u73fe\u8c61\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<br \/>\u305d\u308c\u305e\u308c\u304c\u540c\u6642\u306b\u76f8\u624b\u304b\u3089\u306e\u8981\u6c42\u3092\u5f85\u3061\u53d7\u3051\u3066\u3044\u308b\u3068\u3044\u3046\u3053\u3068\u306f\u3001\u6c38\u4e45\u306b\u305d\u306e\u8981\u6c42\u306f\u6e80\u305f\u3055\u308c\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\u3001\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u306e\u3088\u3046\u306a\u72b6\u6cc1\u306b\u306a\u3063\u3066\u30d7\u30e9\u30b0\u30a4\u30f3\u8a55\u4fa1\u304c\u6c38\u9060\u306b\u884c\u308f\u308c\u305a\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u8a55\u4fa1\u306f\u76f4\u5217\u306b\u52d5\u4f5c\u3059\u308b\u305f\u3081\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u51e6\u7406\u304c\u505c\u6b62\u3057\u3066\u3057\u307e\u3046\u4e8b\u614b\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u3057\u304b\u3057\u3053\u3053\u304b\u3089\u8abf\u67fb\u304c\u96e3\u822a\u3057\u307e\u3059\u3002\u305d\u3082\u305d\u3082\u306a\u305c\u3053\u306e\u3088\u3046\u306a\u4e8b\u614b\u306b\u306a\u3063\u3066\u3044\u308b\u304b\u304c\u308f\u304b\u3089\u306a\u304b\u3063\u305f\u306e\u3068\u3001\u554f\u984c\u304c\u8d77\u3053\u308b\u305f\u3073\u306b\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u3092\u3057\u3066\u3082\u7d50\u679c\u304c\u6bce\u56de\u540c\u3058\u5185\u5bb9\u3060\u3063\u305f\u305f\u3081\u3001\u65b0\u3057\u3044\u60c5\u5831\u304c\u5f97\u3089\u308c\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u30ed\u30fc\u30ab\u30eb\u3067\u3082\u5f15\u304d\u7d9a\u304d\u518d\u73fe\u3057\u307e\u305b\u3093\u3002<\/p>\n<p>\u305d\u3053\u3067\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306b\u4f55\u3089\u304b\u306e\u4e0d\u8abf\u304c\u8d77\u304d\u3066\u3001\u7a81\u7136\u30db\u30b9\u30c8\u3068\u30b2\u30b9\u30c8\u9593\u306e\u758e\u901a\u304c\u3067\u304d\u306a\u304f\u306a\u308b\u3068\u4eee\u5b9a\u3057\u3001\u30db\u30b9\u30c8\u3068\u30b2\u30b9\u30c8\u9593\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u3084\u308a\u3068\u308a\u306b\u5229\u7528\u3059\u308b\u30e1\u30e2\u30ea\u306e\u8aad\u307f\u66f8\u304d\u51e6\u7406\u3067\u30a8\u30e9\u30fc\u306b\u306a\u3063\u305f\u5834\u5408\u306f\u3001\u3042\u3089\u304b\u3058\u3081\u4f5c\u3063\u3066\u304a\u3044\u305f\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306b\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3059\u308b\u3088\u3046\u306a\u4ed5\u7d44\u307f\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f ( <a target=\"_blank\" href=\"https:\/\/github.com\/mercari\/grpc-federation\/pull\/327\">https:\/\/github.com\/mercari\/grpc-federation\/pull\/327<\/a>  )\u3002\u3082\u3057\u3069\u3053\u304b\u3067\u30a8\u30e9\u30fc\u304c\u8fd4\u308b\u3088\u3046\u3067\u3042\u308c\u3070\u3001\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3059\u308b\u3053\u3068\u3067\u5fa9\u5e30\u3067\u304d\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n<p>\u3057\u304b\u3057\u7d50\u679c\u306f\u671f\u5f85\u3068\u306f\u7570\u306a\u308a\u3001\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u3082\u306a\u304f\u3001\u4e88\u5146\u306a\u3057\u306b\u7a81\u7136\u554f\u984c\u304c\u767a\u751f\u3057\u3066\u3057\u307e\u3044\u307e\u3057\u305f\u3002<\/p>\n<h2>GC \u3092\u7591\u3044\u59cb\u3081\u308b<\/h2>\n<p>\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u8a55\u4fa1\u3059\u308b\u969b\u3001\u30db\u30b9\u30c8\u304b\u3089\u30b2\u30b9\u30c8\u3078\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u65b9\u6cd5\u306f\u5927\u304d\u304f2\u901a\u308a\u5b58\u5728\u3057\u307e\u3059\u3002<br \/>\u4e00\u3064\u306f\u8a8d\u8a3c\u51e6\u7406\u306e\u4f8b\u3067\u8aac\u660e\u3057\u305f\u3088\u3046\u306a\u901a\u5e38\u306e API \u30ea\u30af\u30a8\u30b9\u30c8\u3067\u3059\u3002\u3082\u3046\u4e00\u3064\u306fGC\u306e\u5b9f\u884c\u3067\u3057\u305f\u3002<br \/>WebAssembly \u30e9\u30f3\u30bf\u30a4\u30e0\u3067\u306f\u30a2\u30ed\u30b1\u30fc\u30b7\u30e7\u30f3\u6226\u7565\u3068\u3057\u3066\u30ea\u30cb\u30a2\u30e1\u30e2\u30ea\u3092\u63a1\u7528\u3057\u3066\u304a\u308a\u3001\u30e1\u30e2\u30ea\u304c\u8db3\u308a\u306a\u304f\u306a\u3063\u305f\u3089\u500d\u306e\u30e1\u30e2\u30ea\u3092\u78ba\u4fdd\u3057\u3066\u5bfe\u51e6\u3057\u307e\u3059\u3002\u3067\u3059\u304c\u3001\u30e1\u30e2\u30ea\u304c\u5341\u5206\u3067\u3082\u78ba\u4fdd\u3057\u305f\u7bc4\u56f2\u3092\u7e2e\u5c0f\u3059\u308b\u3053\u3068\u306f\u3057\u307e\u305b\u3093\u3002\u3064\u307e\u308a\u3001GC \u304c\u8d70\u308b\u30bf\u30a4\u30df\u30f3\u30b0\u304c\u9045\u308c\u308b\u307b\u3069\u3001\u30e1\u30e2\u30ea\u304c\u4e0d\u5fc5\u8981\u306b\u591a\u304f\u78ba\u4fdd\u3055\u308c\u3066\u3057\u307e\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u3092\u9632\u3050\u305f\u3081\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u5074\u3067\u7d30\u304b\u304f GC \u3092\u5b9f\u884c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001gRPC Federation \u3067\u306f\u5b9a\u671f\u7684\u306b\u30db\u30b9\u30c8\u304b\u3089\u30b2\u30b9\u30c8\u306b\u5bfe\u3057\u3066\u3001\u5f37\u5236\u7684\u306b <code>runtime.GC()<\/code> \u3092\u5b9f\u884c\u3059\u308b\u3088\u3046\u306b\u8981\u6c42\u3059\u308b\u6226\u7565\u3092\u30ea\u30ea\u30fc\u30b9\u521d\u671f\u304b\u30891\u5e74\u4ee5\u4e0a\u884c\u3063\u3066\u304d\u307e\u3057\u305f\u3002<\/p>\n<p>\u3053\u306e\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3092\u3075\u307e\u3048\u3001\u672c\u756a\u74b0\u5883\u3067\u3057\u3070\u3089\u304f\u904b\u7528\u3057\u305f\u969b\u306b\u30a8\u30e9\u30fc\u306a\u304f\u7a81\u7136\u554f\u984c\u304c\u8d77\u3053\u308b\u3053\u3068\u304b\u3089\u3001GC \u3092\u30c8\u30ea\u30ac\u30fc\u3057\u305f\u969b\u306b\u554f\u984c\u304c\u8d77\u3053\u308b\u306e\u3067\u306f\u306a\u3044\u304b\u3068\u3044\u3046\u4eee\u8aac\u3092\u7acb\u3066\u3001\u30db\u30b9\u30c8\u304b\u3089\u306e GC \u547c\u3073\u51fa\u3057\u51e6\u7406\u3092\u306a\u304f\u3059\u3053\u3068\u3067\u3001\u4e8b\u614b\u304c\u597d\u8ee2\u3059\u308b\u306e\u3067\u306f\u306a\u3044\u304b\u3068\u8003\u3048\u59cb\u3081\u307e\u3057\u305f\u3002\u4eee\u306b GC \u304c\u95a2\u4fc2\u306a\u304b\u3063\u305f\u3068\u3057\u3066\u3082\u3001\u30db\u30b9\u30c8\u304b\u3089\u30b2\u30b9\u30c8\u306b\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u6295\u3052\u308b\u56de\u6570\u81ea\u4f53\u304c\u6e1b\u308b\u305f\u3081\u3001\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u983b\u5ea6\u304c\u4e0b\u304c\u308b\u306e\u3067\u306f\u306a\u3044\u304b\u3068\u3044\u3046\u671f\u5f85\u3082\u3042\u308a\u307e\u3057\u305f\u3002<br \/>\u30c8\u30ec\u30fc\u30c9\u30aa\u30d5\u3068\u3057\u3066\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u5074\u3067 GC \u304c\u8d70\u308b\u983b\u5ea6\u304c\u6e1b\u308b\u305f\u3081 OOM ( Out Of Memory ) \u306b\u306a\u308b\u30ea\u30b9\u30af\u306f\u4e0a\u304c\u308a\u307e\u3059\u304c\u3001\u307e\u305a\u306f\u30db\u30b9\u30c8\u304b\u3089\u30b2\u30b9\u30c8\u3078\u306e GC \u8981\u6c42\u3092\u3084\u3081\u3066\u69d8\u5b50\u3092\u898b\u3066\u307f\u308b\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n<h2>\u4e8b\u614b\u304c\u597d\u8ee2\u3057\u59cb\u3081\u308b<\/h2>\n<p>GC \u306e\u7d4c\u8def\u3092\u524a\u9664\u3057\u305f\u5f8c\u3001\u30a2\u30e9\u30fc\u30c8\u304c\u4e0a\u304c\u308b\u983b\u5ea6\u304c\u76ee\u7acb\u3063\u3066\u6e1b\u308a\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u4e88\u60f3\u901a\u308a OOM \u304c\u767a\u751f\u3057\u3066\u3057\u307e\u3063\u305f\u306e\u3068\u3001\u983b\u5ea6\u304c\u30bc\u30ed\u306b\u306f\u306a\u3063\u3066\u3044\u306a\u3044\u305f\u3081\u3001\u6839\u672c\u5bfe\u7b56\u306b\u3082\u306a\u3063\u3066\u3044\u307e\u305b\u3093\u3002<br \/>\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u3057\u3066\u3082\u76f8\u5909\u308f\u3089\u305a\u540c\u3058\u7d50\u679c\u3067\u3057\u305f\u3002<\/p>\n<p>\u3057\u304b\u3057\u3001\u4e8b\u614b\u304c\u4eca\u307e\u3067\u3068\u5909\u308f\u3063\u305f\u3053\u3068\u304b\u3089\u3001\u554f\u984c\u306e\u5207\u308a\u5206\u3051\u306e\u305f\u3081\u306b\u30d7\u30e9\u30b0\u30a4\u30f3\u5074\u3067\u81ea\u52d5\u3067\u8d70\u308b GC \u3092\u7591\u3063\u3066\u307f\u308b\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002\u30d7\u30e9\u30b0\u30a4\u30f3\u5074\u3067\u8d70\u308b\u81ea\u52d5GC\u3092 <code>GOGC=off<\/code> \u74b0\u5883\u5909\u6570\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u6b62\u3081\u3001\u5f37\u5236 GC \u306e\u307f\u3067\u904b\u7528\u3059\u308b\u65b9\u6cd5\u3067\u3059\u3002\u3053\u306e\u3068\u304d\u3001\u3088\u308a\u5b9f\u88c5\u3092\u30b7\u30f3\u30d7\u30eb\u306b\u3059\u308b\u305f\u3081\u3001\u4eca\u307e\u3067\u30db\u30b9\u30c8\u5074\u3067 GC \u306e\u7d42\u4e86\u3092\u5f85\u3063\u3066\u3044\u306a\u304b\u3063\u305f\u306e\u3092\u540c\u671f\u7684\u306b\u5f85\u3064\u3088\u3046\u306b\u3057\u307e\u3057\u305f\u3002\u88dc\u8db3\u3068\u3057\u3066\u3001\u4eca\u307e\u3067 GC \u306e\u7d42\u4e86\u3092\u5f85\u3063\u3066\u3044\u306a\u304f\u3066\u5927\u4e08\u592b\u306a\u306e\u304b\u3068\u7591\u554f\u306b\u601d\u3063\u305f\u65b9\u304c\u3044\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u30b2\u30b9\u30c8\u5074\u3067\u5f37\u5236GC\u306e\u5834\u5408\u3092\u7279\u5225\u6271\u3044\u3057\u3066\u51e6\u7406\u3057\u3066\u3044\u308b\u306e\u3067\u975e\u540c\u671f\u306b\u3059\u308b\u3053\u3068\u81ea\u4f53\u306f\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u3053\u306e\u72b6\u614b\u3067\u3057\u3070\u3089\u304f\u904b\u7528\u3057\u305f\u3068\u3053\u308d\u3001\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u6642\u306f\u3001\u30b9\u30bf\u30c3\u30af\u30c8\u30ec\u30fc\u30b9\u304b\u3089\u5fc5\u305a\u5f37\u5236GC\u306e\u7d4c\u8def\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002\u3064\u307e\u308a\u3001\u30db\u30b9\u30c8\u304b\u3089\u5f37\u5236GC\u3092\u5b9f\u884c\u3057\u305f\u3068\u3053\u308d\u3001\u305d\u306e\u7d50\u679c\u304c\u8fd4\u3089\u305a\u306b\u505c\u6b62\u3057\u3066\u3044\u308b\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\u30db\u30b9\u30c8\u30fb\u30b2\u30b9\u30c8\u9593\u306e\u901a\u4fe1\u65b9\u6cd5\u306e\u6539\u5584<\/h2>\n<p>\u7a81\u7136 <code>runtime.GC()<\/code> \u304b\u3089\u51e6\u7406\u304c\u8fd4\u3063\u3066\u3053\u306a\u304f\u306a\u308b\u3068\u306f\u8003\u3048\u306b\u304f\u304b\u3063\u305f\u306e\u3067\u3001GC \u304c\u8d70\u3063\u305f\u5f71\u97ff\u3067\u3001\u30db\u30b9\u30c8\u3068\u30b2\u30b9\u30c8\u9593\u306e\u901a\u4fe1\u306b\u5229\u7528\u3059\u308b\u4f55\u304b\u304c\u58ca\u308c\u305f\u3068\u63a8\u6e2c\u3057\u307e\u3057\u305f\u3002\u305d\u3053\u3067\u3001\u4e21\u8005\u306e\u901a\u4fe1\u65b9\u5f0f\u3092\u3088\u308a\u30b7\u30f3\u30d7\u30eb\u306a\u3082\u306e\u306b\u5909\u66f4\u3059\u308b\u3053\u3068\u3067 GC \u306e\u5f71\u97ff\u3092\u6e1b\u3089\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3067\u306f\u306a\u3044\u304b\u3068\u8003\u3048\u3001\u4eca\u307e\u3067\u5229\u7528\u3057\u3066\u3044\u305f STDIO \u3092\u4f7f\u3063\u305f\u901a\u4fe1\u65b9\u6cd5\u3092\u3084\u3081\u3001\u30db\u30b9\u30c8\u95a2\u6570\u3068 Go \u306e\u30c1\u30e3\u30cd\u30eb\u3092\u5229\u7528\u3057\u305f\u901a\u4fe1\u65b9\u5f0f\u306b\u5909\u66f4\u3057\u3001\u3059\u3079\u3066\u3092\u30db\u30b9\u30c8\u4e0a\u3067\u884c\u3046\u6a19\u6e96\u7684\u306a Go \u306e\u30c1\u30e3\u30cd\u30eb\u3092\u4ecb\u3057\u305f\u51e6\u7406\u306b\u5909\u66f4\u3057\u307e\u3057\u305f\u3002<\/p>\n<p><a target=\"_blank\" href=\"https:\/\/github.com\/mercari\/grpc-federation\/pull\/331\">https:\/\/github.com\/mercari\/grpc-federation\/pull\/331<\/a><br \/><a target=\"_blank\" href=\"https:\/\/github.com\/mercari\/grpc-federation\/pull\/333\">https:\/\/github.com\/mercari\/grpc-federation\/pull\/333<\/a> <\/p>\n<p>\u3053\u306e\u51e6\u7406\u306f Go Conference 2025 \u3067\u7d39\u4ecb\u3057\u305f\u969b\u306e\u30db\u30b9\u30c8\u30fb\u30b2\u30b9\u30c8\u9593\u306e\u901a\u4fe1\u51e6\u7406\u3092\u6539\u5584\u3057\u305f\u3082\u306e\u306a\u306e\u3067\u3001\u8208\u5473\u306e\u3042\u308b\u65b9\u306f\u898b\u3066\u307f\u3066\u3044\u305f\u3060\u3051\u308c\u3070\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>\u5225\u4ef6\u3067\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u4e0a\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bd\u30b1\u30c3\u30c8\u3092\u6271\u3046\u305f\u3081\u306b\u5c0e\u5165\u3057\u305f <a target=\"_blank\" href=\"https:\/\/github.com\/goccy\/wasi-go\">wasi-go<\/a> \u3068\u3044\u3046\u30e9\u30a4\u30d6\u30e9\u30ea\u3082\u7591\u3044\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bd\u30b1\u30c3\u30c8\u95a2\u9023\u306e syscall \u4ee5\u5916\u3092 <a target=\"_blank\" href=\"https:\/\/github.com\/wazero\/wazero\">wazero<\/a> \u304c\u63d0\u4f9b\u3059\u308b\u67af\u308c\u305f\u5b9f\u88c5\u306b\u7f6e\u304d\u63db\u3048\u3088\u3046\u3068\u3082\u3057\u307e\u3057\u305f\u304c\u3001wazero \u304c\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u307e\u308f\u308a\u306e API \u3092 private \u306b\u3057\u3066\u3044\u308b\u305f\u3081\u306b\u3001 wasi-go \u5074\u3067\u4f5c\u3063\u305f \u30bd\u30b1\u30c3\u30c8\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf \u3092 wazero \u5074\u306b\u4f1d\u3048\u308b\u65b9\u6cd5\u304c\u306a\u304f\u65ad\u5ff5\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u3055\u3066\u3001\u3053\u306e\u6539\u5584\u3092\u884c\u3063\u305f\u3053\u3068\u3067\u4e8b\u614b\u304c\u3088\u308a\u9032\u5c55\u3059\u308b\u3068\u601d\u308f\u308c\u307e\u3057\u305f\u304c\u3001\u554f\u984c\u306f\u53ce\u675f\u305b\u305a\u3001\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u3059\u308b\u3068\u3001\u30db\u30b9\u30c8\u3068\u30b2\u30b9\u30c8\u305d\u308c\u305e\u308c\u3067\u30c1\u30e3\u30cd\u30eb\u306e\u53d7\u4fe1\u51e6\u7406\u3067\u30d6\u30ed\u30c3\u30af\u3057\u3066\u3044\u308b\u3068\u3044\u3046\u7d50\u679c\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u305f\u3060\u3057\u3001\u3044\u305a\u308c\u3082\u5f37\u5236GC\u306e\u7d50\u679c\u5f85\u3061\u3067\u3057\u305f\u3002<\/p>\n<h2>\u30ed\u30b0\u3092\u4ed5\u8fbc\u3080<\/h2>\n<p>\u4eca\u56de\u306e\u554f\u984c\u306f\u672c\u756a\u74b0\u5883\u3067\u9577\u6642\u9593\u904b\u7528\u3057\u306a\u3051\u308c\u3070\u767a\u751f\u3057\u306a\u304b\u3063\u305f\u305f\u3081\u3001\u30b3\u30b9\u30c8\u306e\u9762\u304b\u3089\u30c7\u30d0\u30c3\u30b0\u30ed\u30b0\u3092\u4ed5\u8fbc\u3080\u3053\u3068\u3092\u8e8a\u8e87\u3063\u3066\u3044\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u3053\u308c\u4ee5\u4e0a\u539f\u56e0\u3092\u3057\u307c\u308a\u3053\u3080\u3053\u3068\u304c\u3067\u304d\u306a\u304b\u3063\u305f\u305f\u3081\u3001\u9042\u306b\u30ed\u30b0\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002<a target=\"_blank\" href=\"https:\/\/github.com\/mercari\/grpc-federation\/pull\/335\">\u3042\u308f\u305b\u3066 Trace \u3082\u8ffd\u52a0\u3057\u307e\u3057\u305f<\/a><\/p>\n<p>\u6c17\u3092\u3064\u3051\u305f\u3053\u3068\u3068\u3057\u3066\u3001\u554f\u984c\u304c\u767a\u751f\u3057\u305f\u3089\u3067\u304d\u308b\u3060\u3051\u3059\u3050\u306b\u30c7\u30d0\u30c3\u30b0\u30ed\u30b0\u3092\u7121\u52b9\u306b\u3057\u305f\u304b\u3063\u305f\u305f\u3081\u3001\u74b0\u5883\u5909\u6570\u3092\u6709\u52b9\u306b\u3057\u305f\u3068\u304d\u3060\u3051\u30ed\u30b0\u3092\u6709\u52b9\u306b\u3059\u308b\u3088\u3046\u306a Feature Flag \u65b9\u5f0f\u3092\u63a1\u7528\u3057\u3001\u74b0\u5883\u5909\u6570\u306e\u5909\u66f4\u3092\u5dfb\u304d\u623b\u305b\u3070\u3059\u3050\u306b\u5143\u306b\u623b\u305b\u308b\u3088\u3046\u306b\u3057\u3066\u904b\u7528\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u30ed\u30b0\u3092\u6709\u52b9\u306b\u3057\u3066\u8a08\u6e2c\u3057\u305f\u7d50\u679c\u3001\u30b2\u30b9\u30c8\u304cGC \u5b9f\u884c\u306e\u8981\u6c42\u3092\u53d7\u3051\u53d6\u3063\u305f\u3068\u3044\u3046\u30ed\u30b0\u306f\u898b\u3064\u304b\u308a\u307e\u3057\u305f\u304c\u3001\u7d50\u679c\u3092\u9001\u4fe1\u3059\u308b\u3068\u3044\u3046\u30ed\u30b0\u304c\u306a\u304b\u3063\u305f\u305f\u3081\u3001\u306a\u3044\u3060\u308d\u3046\u3068\u8003\u3048\u3066\u3044\u305fGC\u5b9f\u884c\u4e2d\u306b\u30cf\u30f3\u30b0\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u6fc3\u539a\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u307e\u305f\u3001\u30ed\u30b0\u3092\u4ed5\u8fbc\u3093\u3060\u7d50\u679c\u3001\u30db\u30b9\u30c8\u3068\u30b2\u30b9\u30c8\u3067\u3069\u3061\u3089\u3082\u53d7\u4fe1\u5f85\u3061\u306b\u306a\u3063\u3066\u3044\u305f\u3068\u601d\u3063\u3066\u3044\u305f\u4e0d\u53ef\u601d\u8b70\u306a\u73fe\u8c61\u306f\u3001\u5b9f\u306f\u5225\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3060\u3063\u305f\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002\u3064\u307e\u308a\u3001\u30db\u30b9\u30c8\u5074\u3068\u30b2\u30b9\u30c8\u5074\u306e\u30b9\u30bf\u30c3\u30af\u30c8\u30ec\u30fc\u30b9\u306f\u3001\u305d\u308c\u305e\u308c\u5225\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u3082\u306e\u3092\u8868\u793a\u3057\u3066\u3044\u305f\u306e\u3067\u3059\u3002\u5148\u306b\u8aac\u660e\u3057\u305f\u901a\u308a\u3001gRPC Federation \u306f gRPC Service \u3054\u3068\u306b\u4f5c\u308b\u30d7\u30e9\u30b0\u30a4\u30f3\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306f\u4e00\u3064\u3067\u3059\u304c\u3001 <strong>\u540c\u4e00\u30d7\u30ed\u30bb\u30b9\u4e0a\u3067\u52d5\u304f gRPC Service \u304c\u8907\u6570\u3042\u308b\u5834\u5408\u306f\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3082\u8907\u6570\u306b\u306a\u308a\u307e\u3059<\/strong>\u3002\u3053\u306e\u3053\u3068\u3092\u8003\u616e\u3067\u304d\u3066\u3044\u306a\u304b\u3063\u305f\u306e\u304c\u6094\u3084\u307e\u308c\u307e\u3059\u3002\u3057\u304b\u3057\u3053\u308c\u3067\u3001\u554f\u984c\u304c\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u3067\u306f\u306a\u304fGC\u5b9f\u884c\u4e2d\u306e\u30cf\u30f3\u30b0\u306b\u53ce\u675f\u3057\u305f\u305f\u3081\u3068\u3066\u3082\u30b7\u30f3\u30d7\u30eb\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<h2>\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u81ea\u52d5\u5fa9\u65e7\u5bfe\u7b56<\/h2>\n<p>\u6c17\u3065\u304f\u306810\u6708\u3082\u534a\u3070\u306b\u5dee\u3057\u639b\u304b\u3063\u3066\u3044\u307e\u3057\u305f\u3002\u632f\u308a\u8fd4\u308b\u30688\u6708\u4e0b\u65ec\u304b\u3089\u6570\u3048\u30662\u30f6\u6708\u8fd1\u304f\u683c\u95d8\u3057\u3066\u3044\u305f\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3067\u3059\u304c\u554f\u984c\u304c\u660e\u78ba\u306b\u306a\u3063\u305f\u3053\u3068\u3067\u3001\u53d6\u308c\u308b\u7b56\u3082\u5177\u4f53\u7684\u306b\u306a\u308a\u307e\u3057\u305f\u3002GC\u5b9f\u884c\u4e2d\u306b\u51e6\u7406\u304c\u8fd4\u3089\u306a\u304f\u306a\u308b\u3053\u3068\u304b\u3089\u3001\u307e\u3060\u305d\u306e\u539f\u56e0\u306f\u308f\u304b\u3089\u306a\u3044\u306b\u305b\u3088\u3001\u30ef\u30fc\u30af\u30a2\u30e9\u30a6\u30f3\u30c9\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u3059\u3002\u5f37\u5236GC\u306b\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3092\u8a2d\u3051\u3001\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3057\u305f\u5834\u5408\u306f\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304c\u58ca\u308c\u305f\u3068\u5224\u65ad\u3057\u3001\u524d\u306b\u5b9f\u88c5\u3057\u3066\u3044\u305f\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u306b\u5207\u308a\u66ff\u3048\u308b\u4ed5\u7d44\u307f\u3092\u4f7f\u3063\u3066\u81ea\u52d5\u7684\u306b\u5fa9\u65e7\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306f\u305a\u3067\u3059\u3002<br \/>\u3064\u3044\u3067\u306b\u3001\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u5207\u308a\u66ff\u3048\u308b\u969b\u306b\u30ed\u30b0\u3082\u51fa\u529b\u3057\u3066\u307f\u307e\u3059\u3002\u7121\u4e8b\u5fa9\u65e7\u3057\u3066\u3044\u308b\u306a\u3089\u3070\u30ed\u30b0\u304c\u51fa\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u5bfe\u5fdc\u3092\u884c\u3063\u3066\u304b\u3089\u3001\u6570\u65e5\u9593\u69d8\u5b50\u3092\u898b\u307e\u3057\u305f\u304c\u3001\u4ed5\u8fbc\u3093\u3060\u30ed\u30b0\u306f\u5b9a\u671f\u7684\u306b\u51fa\u529b\u3055\u308c\u3064\u3064\u3001Goroutines \u304c\u6025\u5897\u3059\u308b\u3053\u3068\u3082\u306a\u304f\u306a\u308a\u307e\u3057\u305f\u3002<br \/>\u3072\u3068\u307e\u305a\u3001\u30ef\u30fc\u30af\u30a2\u30e9\u30a6\u30f3\u30c9\u306f\u3046\u307e\u304f\u52d5\u3044\u3066\u3044\u305d\u3046\u3067\u3001\u969c\u5bb3\u5bfe\u5fdc\u304c\u843d\u3061\u7740\u3044\u305f\u3068\u3044\u3048\u308b\u72b6\u614b\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u3053\u306e\u3068\u304d\u884c\u3063\u305f\u5b9f\u88c5\u306f<a target=\"_blank\" href=\"https:\/\/github.com\/mercari\/grpc-federation\/pull\/340\">\u3053\u3061\u3089\u3067\u3059<\/a><\/p>\n<h2>\u6839\u672c\u539f\u56e0\u304c\u5224\u660e<\/h2>\n<p>\u969c\u5bb3\u5bfe\u5fdc\u304c\u843d\u3061\u7740\u3044\u305f\u306e\u3067\u3001\u4eca\u307e\u3067\u5f97\u3089\u308c\u305f\u60c5\u5831\u304b\u3089\u3088\u308a\u518d\u73fe\u3057\u3084\u3059\u3044\u74b0\u5883\u3067\u8abf\u67fb\u3092\u7d9a\u3051\u305f\u3068\u3053\u308d\u3001\u9577\u6642\u9593\u52d5\u4f5c\u3055\u305b\u308b\u4e2d\u3067\u30ed\u30fc\u30ab\u30eb\u3067\u518d\u73fe\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u4f9d\u7136\u3068\u3057\u3066\u518d\u73fe\u3059\u308b\u3053\u3068\u306f\u96e3\u3057\u304b\u3063\u305f\u3067\u3059\u304c\u3001\u305d\u308c\u3067\u3082\u518d\u73fe\u3067\u304d\u305f\u3053\u3068\u306f\u5927\u304d\u304f\u3001\u8a73\u7d30\u306a\u30c7\u30d0\u30c3\u30b0\u30ed\u30b0\u3092\u4ed5\u8fbc\u3093\u3067\u8907\u6570\u56de\u5b9f\u884c\u3059\u308b\u4e2d\u3067\u3001 \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bd\u30b1\u30c3\u30c8\u3092\u5229\u7528\u3059\u308b\u305f\u3081\u306b\u5c0e\u5165\u3057\u305f wasi-go \u3068\u3044\u3046\u30e9\u30a4\u30d6\u30e9\u30ea\u306e <code>PollOneOff<\/code> syscall \u5185\u3067\u547c\u3073\u51fa\u3057\u3066\u3044\u308b <code>unix.Poll<\/code> \u304b\u3089\u51e6\u7406\u304c\u8fd4\u3063\u3066\u3053\u306a\u304f\u306a\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002\u30c7\u30d0\u30c3\u30b0\u30ed\u30b0\u306e\u7d50\u679c\u304b\u3089\u3001\u3069\u3046\u3084\u3089\u901a\u5e38\u306f 0 \u306b\u306a\u308b\u306f\u305a\u306e <code>unix.Poll<\/code> \u306b\u6e21\u3057\u3066\u3044\u308b timeout \u5024\u304c\u7570\u5e38\u5024(\u8ca0\u6570)\u306b\u306a\u3063\u3066\u304a\u308a\u3001\u6c38\u4e45\u306b\u304f\u308b\u3053\u3068\u306e\u306a\u3044\u30a4\u30d9\u30f3\u30c8\u3092\u5f85\u3063\u3066\u30d6\u30ed\u30c3\u30ad\u30f3\u30b0\u3059\u308b\u6319\u52d5\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002\u307e\u305f\u3001<code>PollOneOff<\/code> \u3068 GC \u306b\u56e0\u679c\u95a2\u4fc2\u304c\u3042\u308b\u304b\u3092\u8abf\u3079\u308b\u305f\u3081\u306b Go \u672c\u4f53\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u8ffd\u3063\u3066\u307f\u308b\u3068\u3001GC \u306e\u30b7\u30fc\u30b1\u30f3\u30b9\u3067 <code>PollOneOff<\/code> \u304c\u547c\u3073\u51fa\u3055\u308c\u308b\u7d4c\u8def\u304c\u3042\u308b\u3053\u3068\u3082\u308f\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u3053\u306e\u554f\u984c\u3092\u4fee\u6b63\u3057\u305f\u3068\u304d\u306ePR\u306f<a target=\"_blank\" href=\"https:\/\/github.com\/goccy\/wasi-go\/pull\/6\">\u3053\u3061\u3089\u3067\u3059<\/a>\u3002<br \/>\u203b \u30e9\u30a4\u30d6\u30e9\u30ea\u306f\u79c1\u304c\u4f5c\u3063\u305f\u3082\u306e\u306e\u3088\u3046\u306b\u898b\u3048\u307e\u3059\u304c\u3001\u5b9f\u969b\u306b\u306f fork \u3057\u305f\u3082\u306e\u3092\u4f7f\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u4fee\u6b63\u3092\u9069\u7528\u3057\u305f\u3042\u3068\u3001\u4ed5\u8fbc\u3093\u3060\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5207\u308a\u66ff\u3048\u6642\u306e\u30ed\u30b0\u306f\u51fa\u529b\u3055\u308c\u306a\u304f\u306a\u308a\u3001\u7121\u4e8b\u554f\u984c\u304c\u89e3\u6c7a\u3057\u307e\u3057\u305f\u3002\u554f\u984c\u767a\u751f\u304b\u30892\u30f6\u6708\u307b\u3069\u306e\u3053\u3068\u3067\u3001\u3042\u306e\u6691\u304b\u3063\u305f\u590f\u304b\u3089\u5c11\u3057\u808c\u5bd2\u304f\u306a\u3063\u3066\u304d\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n<h2>\u53cd\u7701\u70b9<\/h2>\n<p>\u3042\u3089\u305f\u3081\u3066\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u7d50\u679c\u3092\u601d\u3044\u8fd4\u3059\u3068\u3001\u5b9f\u306f <code>PollOneOff<\/code> \u306e\u30b9\u30bf\u30c3\u30af\u30c8\u30ec\u30fc\u30b9\u306f\u4e00\u756a\u6700\u521d\u306b\u8a08\u6e2c\u3057\u305f\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u7d50\u679c\u306b\u542b\u307e\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u52d8\u304c\u3088\u3051\u308c\u3070\u3001\u6700\u521d\u306e\u6642\u70b9\u3067 <code>PollOneOff<\/code> \u304c\u539f\u56e0\u3060\u3068\u6c17\u3065\u304f\u3053\u3068\u3082\u3067\u304d\u305f\u306e\u3067\u3059\u3002<\/p>\n<p><code>PollOneOff<\/code> \u306f epoll \u306e\u3088\u3046\u306b\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u306b\u5bfe\u3059\u308b\u30a4\u30d9\u30f3\u30c8\u3092\u76e3\u8996\u3059\u308b WASI \u7528\u306e syscall \u3067\u3001\u30b9\u30bf\u30c3\u30af\u30c8\u30ec\u30fc\u30b9\u306f\u6700\u521d\u304b\u3089\u76ee\u306b\u5165\u3063\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u521d\u671f\u306e\u5b9f\u88c5\u3067\u306f\u30db\u30b9\u30c8\u3068\u30b2\u30b9\u30c8\u9593\u306e\u901a\u4fe1\u306b STDIO \u65b9\u5f0f\u3092\u63a1\u7528\u3057\u3066\u3044\u305f\u305f\u3081\u3001\u901a\u4fe1\u6642\u306b\u5229\u7528\u3059\u308b\u6a19\u6e96\u5165\u51fa\u529b\u306e\u30a4\u30d9\u30f3\u30c8\u5f85\u3061\u3067\u547c\u3073\u51fa\u3055\u308c\u3066\u3044\u308b\u306e\u304b\u3068\u52d8\u9055\u3044\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u307e\u305f\u3001wazero ( WebAssembly \u30e9\u30f3\u30bf\u30a4\u30e0 ) \u5074\u3067\u7279\u5225\u306b\u5225\u30b9\u30ec\u30c3\u30c9\u3067\u30a4\u30d9\u30f3\u30c8\u5f85\u3061\u3092\u3057\u3066\u3044\u308b\u306e\u304b\u3068\u3082\u4e88\u60f3\u3057\u3066\u304a\u308a\u3001\u3042\u307e\u308a\u6c17\u306b\u3057\u3066\u3044\u306a\u304b\u3063\u305f\u306e\u304c\u6094\u3084\u307e\u308c\u307e\u3059\u3002<\/p>\n<p>\u51b7\u9759\u306b\u8003\u3048\u308b\u3068\u3001\u3042\u3068\u3067 Go \u306e\u30c1\u30e3\u30cd\u30eb\u3092\u5229\u7528\u3057\u305f\u901a\u4fe1\u65b9\u5f0f\u306b\u5207\u308a\u66ff\u3048\u3066\u3082\u30b9\u30bf\u30c3\u30af\u30c8\u30ec\u30fc\u30b9\u306b\u73fe\u308c\u3066\u3044\u305f\u306e\u306f\u304a\u304b\u3057\u3044\u3057\u3001\u30b7\u30f3\u30b0\u30eb\u30b9\u30ec\u30c3\u30c9\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306a\u306e\u306b\u5225\u30b9\u30ec\u30c3\u30c9\u3067\u30a4\u30d9\u30f3\u30c8\u76e3\u8996\u3057\u3066\u3044\u308b\u306e\u3082\u304a\u304b\u3057\u3044\u306e\u3067\u3001\u5148\u5165\u89b3\u3067\u5224\u65ad\u3057\u3066\u306f\u3044\u3051\u306a\u3044\u3068\u6539\u3081\u3066\u6c17\u4ed8\u304b\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<p>\u9006\u306b\u3001\u6700\u521d\u304b\u3089\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u7d50\u679c\u306b\u7b54\u3048\u306f\u66f8\u304b\u308c\u3066\u3044\u305f\u306e\u3067\u3001pprof \u304c\u5927\u4e8b\u3060\u3068\u3082\u8a00\u3048\u307e\u3059\u3002<\/p>\n<h2>\u632f\u308a\u8fd4\u308a<\/h2>\n<p>\u672c\u756a\u74b0\u5883\u3067\u3057\u304b\u554f\u984c\u304c\u8d77\u3053\u3089\u306a\u3044\u5834\u5408\u3001\u554f\u984c\u306e\u3042\u308b Pod \u3092\u5358\u306b\u518d\u8d77\u52d5\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u30b5\u30fc\u30d3\u30b9\u304b\u3089\u5207\u308a\u96e2\u3057\u3066\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u3059\u308b\u306e\u306f\u975e\u5e38\u306b\u91cd\u8981\u306a\u30d5\u30ed\u30fc\u3067\u3057\u305f\u3002<br \/>pprof \u306f\u5b9f\u884c\u6642\u306b\u3057\u304b\u8ca0\u8377\u304c\u304b\u304b\u3089\u306a\u3044\u306e\u3067\u3001\u672c\u756a\u7528\u306e\u30d3\u30eb\u30c9\u3067\u3082\u95a2\u4fc2\u306a\u304f pprof \u306e\u8a08\u6e2c\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3092\u6301\u3063\u3066\u304a\u3044\u305f\u65b9\u304c\u3044\u3044\u3068\u3044\u3046\u6c17\u3065\u304d\u3082\u5f97\u307e\u3057\u305f\u3002<\/p>\n<p>\u307e\u305f\u3001\u3061\u3087\u3063\u3068\u3057\u305f\u3053\u3068\u3067\u3059\u304c\u3001\u30c7\u30d0\u30c3\u30b0\u30ed\u30b0\u3092\u7121\u52b9\u5316\u3059\u308b\u305f\u3081\u306b\u5b9f\u88c5\u3092\u5dfb\u304d\u623b\u3057\u3066 image \u3092\u4f5c\u308a\u76f4\u3057\u3001 hotfix \u3092 deploy \u3059\u308b\u65b9\u6cd5\u3060\u3068\u6642\u9593\u304c\u304b\u304b\u3063\u3066\u3057\u307e\u3046\u306e\u3067\u3001\u74b0\u5883\u5909\u6570\u306b\u3088\u3063\u3066\u30c7\u30d0\u30c3\u30b0\u30ed\u30b0\u306e\u51fa\u3057\u5206\u3051\u3092\u5236\u5fa1\u3067\u304d\u305f\u306e\u306f\u826f\u304b\u3063\u305f\u3067\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306e\u5bfe\u5fdc\u3067\u306f\u3001\u554f\u984c\u306e\u3042\u308bPod\u3092\u30b5\u30fc\u30d3\u30b9\u304b\u3089\u5207\u308a\u96e2\u3057\u305f\u5f8c\u3001pprof \u306b\u3088\u308b\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u3092\u30e1\u30a4\u30f3\u306b\u5bfe\u5fdc\u3057\u3066\u304d\u307e\u3057\u305f\u304c\u3001\u5b9f\u306f\u3082\u3046\u3072\u3068\u3064\u8a66\u3057\u305f\u304b\u3063\u305f\u3053\u3068\u3068\u3057\u3066\u3001 Delve \u3067\u306e\u30b5\u30fc\u30d0\u30fc\u30d7\u30ed\u30bb\u30b9\u3078\u306e\u30a2\u30bf\u30c3\u30c1\u306b\u3088\u308b\u30c7\u30d0\u30c3\u30b0\u304c\u3042\u308a\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u3044\u304f\u3064\u304b\u306e\u5236\u7d04\u306b\u3088\u308a\u5b9f\u65bd\u306b\u306f\u81f3\u3089\u305a\u3001\u3082\u3057\u5b9f\u884c\u3067\u304d\u3066\u3044\u308c\u3070 <code>unix.Poll<\/code> \u6642\u306b timeout \u5024\u304c\u5909\u306a\u5024\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u306b\u6c17\u4ed8\u3044\u305f\u304b\u3082\u3057\u308c\u306a\u3044\u305f\u3081\u3001\u4eca\u5f8c\u306e\u8ab2\u984c\u3067\u3059\u3002<\/p>\n<p>\u30e1\u30eb\u30ab\u30ea\u30b0\u30eb\u30fc\u30d7\u5168\u4f53\u306e\u8ab2\u984c\u3068\u3057\u3066\u3001\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u7d50\u679c\u3084 Core \u30d5\u30a1\u30a4\u30eb\u306a\u3069\u3092\u6c38\u7d9a\u5316\u3059\u308b\u624b\u6bb5\u3092\u6a19\u6e96\u5316\u3057\u3066\u3044\u306a\u3044\u305f\u3081\u3001\u4eee\u306b\u305d\u308c\u3089\u306e\u60c5\u5831\u3092\u30c7\u30a3\u30b9\u30af\u306b\u66f8\u304d\u51fa\u3057\u305f\u3068\u3057\u3066\u3082\u3001Pod \u304c\u6d88\u3048\u308b\u3068\u60c5\u5831\u304c\u6d88\u3048\u3066\u3057\u307e\u3046\u554f\u984c\u304c\u3042\u308a\u307e\u3059\u3002Go 1.25 \u304b\u3089\u5165\u3063\u305f <a target=\"_blank\" href=\"https:\/\/go.dev\/blog\/flight-recorder\">Flight Recorder<\/a> \u306a\u3069\u3092\u52b9\u679c\u7684\u306b\u5229\u7528\u3059\u308b\u305f\u3081\u306b\u3082\u3001\u89e3\u6790\u60c5\u5831\u3092 Pod \u306e\u5916\u306b\u9000\u907f\u3055\u305b\u3001\u30c7\u30d0\u30c3\u30b0\u6642\u306b\u53c2\u7167\u3067\u304d\u308b\u3088\u3046\u306a\u4ed5\u7d44\u307f\u3092\u69cb\u7bc9\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3060\u3068\u8003\u3048\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4eca\u56de\u4fee\u6b63\u3092\u52a0\u3048\u305f <a target=\"_blank\" href=\"https:\/\/github.com\/goccy\/wasi-go\">https:\/\/github.com\/goccy\/wasi-go<\/a> \u306f\u3001<a target=\"_blank\" href=\"https:\/\/github.com\/dispatchrun\/wasi-go\">https:\/\/github.com\/dispatchrun\/wasi-go<\/a> \u3092 fork \u3057\u305f\u3082\u306e\u306a\u306e\u3067\u3059\u304c\u3001fork \u5143\u306e\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u304c\u505c\u6b62\u3057\u3066\u3044\u308b\u3053\u3068\u3001\u81ea\u5206\u306e\u65b9\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u306f\u4eca\u56de\u306e\u4fee\u6b63\u5bfe\u5fdc\u4ee5\u5916\u306b\u3082 TLS \u5bfe\u5fdc\u3084 exec.Command \u5bfe\u5fdc\u306a\u3069\u3001\u5b9f\u969b\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306b\u5fdc\u3058\u305f\u3055\u307e\u3056\u307e\u306a\u6539\u5584\u304c\u5165\u3063\u3066\u3044\u308b\u306e\u3067\u3001\u3053\u308c\u304b\u3089 Go \u304c WASI P2 \u306b\u5bfe\u5fdc\u3059\u308b\u307e\u3067\u306e\u9593\u3067 WebAssembly \u3092\u4f7f\u3044\u305f\u3044\u3068\u601d\u3063\u3066\u3044\u308b\u65b9\u306b\u306f\u5f37\u3044\u5473\u65b9\u306b\u306a\u3063\u3066\u304f\u308c\u308b\u306f\u305a\u3067\u3059\u3002\u305c\u3072\u3054\u5229\u7528\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u6700\u5f8c\u306b\u3001\u4eca\u56de Claude Code \u306b\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u7d50\u679c\u306e\u5206\u6790\u306a\u3069\u306e\u58c1\u6253\u3061\u76f8\u624b\u306b\u306a\u3063\u3066\u3082\u3089\u3044\u307e\u3057\u305f\u304c\u3001AI \u306f\u7b54\u3048\u3092\u51fa\u305d\u3046\u3068\u3059\u308b\u3042\u307e\u308a\u8aa4\u3063\u305f\u7b54\u3048\u3092\u5e73\u6c17\u3067\u51fa\u3057\u3066\u304f\u308b\u306e\u3067\u3001\u5618\u3092\u5618\u3060\u3068\u898b\u629c\u304f\u529b\u304c\u5fc5\u8981\u3060\u3068\u5f37\u304f\u611f\u3058\u307e\u3057\u305f\u3002<\/p>\n<p>\u660e\u65e5\u306e\u8a18\u4e8b\u306f fenomas\u3055\u3093\u3067\u3059\u3002\u5f15\u304d\u7d9a\u304d\u304a\u697d\u3057\u307f\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/div>\n\n<br \/><a href=\"https:\/\/engineering.mercari.com\/blog\/entry\/20251207-61e24d343e\/\">\u5143\u306e\u8a18\u4e8b\u3092\u78ba\u8a8d\u3059\u308b <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"\u3053\u3093\u306b\u3061\u306f\u3002Backend Enablement Team 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