{"title":"wy471x","link":[{"@attributes":{"href":"https:\/\/wy471x.github.io\/feed.xml","rel":"self"}},{"@attributes":{"href":"https:\/\/wy471x.github.io"}}],"updated":"2026-08-16T22:53:21+08:00","id":"https:\/\/wy471x.github.io","author":{"name":"wy471x","email":"wy471x@gmail.com"},"entry":[{"title":"APISIX init.lua \u6e90\u7801\u5206\u6790","link":{"@attributes":{"href":"https:\/\/wy471x.github.io\/2026-08-16\/apisix-init-lua-analysis.html"}},"updated":"2026-08-16T23:00:00+08:00","id":"https:\/\/wy471x.github.io\/2026-08-16\/apisix-init-lua-analysis.html","content":"

APISIX apisix\/init.lua<\/code> \u6e90\u7801\u5206\u6790<\/h1>\n\n
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\u5206\u6790\u5bf9\u8c61:apisix\/init.lua<\/code>(\u672c\u6587\u884c\u53f7\u57fa\u4e8e\u4ed3\u5e93 master \u5206\u652f\u5f53\u524d\u7248\u672c)\n\u8be5\u6587\u4ef6\u662f APISIX \u7f51\u5173\u7684\u8bf7\u6c42\u751f\u547d\u5468\u671f\u603b\u5165\u53e3<\/strong>,HTTP \u4e0e Stream \u4e24\u4e2a\u5b50\u7cfb\u7edf\u5171\u7528\u3002<\/p>\n<\/blockquote>\n\n

\n\n

1. \u6587\u4ef6\u5b9a\u4f4d<\/h2>\n\n

init.lua<\/code> \u672c\u8eab\u4e0d\u5904\u7406\u5177\u4f53\u4e1a\u52a1\u903b\u8f91,\u5b83\u627f\u62c5\u4e09\u7c7b\u804c\u8d23:<\/p>\n\n

    \n
  1. \u8fdb\u7a0b\u751f\u547d\u5468\u671f\u94a9\u5b50<\/strong>:init<\/code> \/ init_worker<\/code> \/ exit_worker<\/code> \u9636\u6bb5\u7684\u521d\u59cb\u5316\u4e0e\u6e05\u7406;<\/li>\n
  2. \u8bf7\u6c42\u751f\u547d\u5468\u671f\u7f16\u6392<\/strong>:\u6309 Nginx \u5904\u7406\u9636\u6bb5(access<\/code> \u2192 balancer<\/code> \u2192 header_filter<\/code> \u2192 body_filter<\/code> \u2192 log<\/code>)\u4f9d\u6b21\u8c03\u7528\u8def\u7531\u3001\u63d2\u4ef6\u3001\u8d1f\u8f7d\u5747\u8861\u7b49\u6a21\u5757;<\/li>\n
  3. \u5b89\u5168\u4e0e\u534f\u8bae\u5904\u7406<\/strong>:mTLS \u6821\u9a8c\u3001URI \u89c4\u8303\u5316\u3001X-Forwarded-* \u9632\u4f2a\u9020\u3001gRPC\/Dubbo \u5185\u90e8\u91cd\u5b9a\u5411\u7b49\u3002<\/li>\n<\/ol>\n\n

    \u8be5\u6587\u4ef6\u7684\u51fd\u6570\u7531 apisix\/cli\/ngx_tpl.lua<\/code>(\u914d\u7f6e\u6a21\u677f)\u6e32\u67d3\u51fa\u7684 nginx.conf<\/code> \u5728\u5404\u9636\u6bb5\u6307\u4ee4\u4e2d\u8c03\u7528\u3002<\/p>\n\n

    \n\n

    2. \u4e0e Nginx \u9636\u6bb5\u7684\u6302\u63a5\u5173\u7cfb<\/h2>\n\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
    Nginx \u6307\u4ee4<\/th>\n init.lua \u51fd\u6570<\/th>\n \u6a21\u677f\u4f4d\u7f6e<\/th>\n <\/tr>\n <\/thead>\n
    init_by_lua_block<\/code>(http)<\/td>\n http_init(args)<\/code><\/td>\n ngx_tpl.lua:514<\/td>\n <\/tr>\n
    init_worker_by_lua_block<\/code>(http)<\/td>\n http_init_worker()<\/code><\/td>\n :523<\/td>\n <\/tr>\n
    exit_worker_by_lua_block<\/code>(http)<\/td>\n http_exit_worker()<\/code><\/td>\n :527<\/td>\n <\/tr>\n
    init_by_lua_block<\/code>(stream)<\/td>\n stream_init(args)<\/code><\/td>\n :205<\/td>\n <\/tr>\n
    init_worker_by_lua_block<\/code>(stream)<\/td>\n stream_init_worker()<\/code><\/td>\n :209<\/td>\n <\/tr>\n
    ssl_client_hello_by_lua_block<\/code><\/td>\n ssl_client_hello_phase()<\/code><\/td>\n :234 \/ :772<\/td>\n <\/tr>\n
    ssl_certificate_by_lua_block<\/code><\/td>\n ssl_phase()<\/code><\/td>\n :238 \/ :776<\/td>\n <\/tr>\n
    preread_by_lua_block<\/code>(stream)<\/td>\n stream_preread_phase()<\/code><\/td>\n :247<\/td>\n <\/tr>\n
    log_by_lua_block<\/code>(stream)<\/td>\n stream_log_phase()<\/code><\/td>\n :259<\/td>\n <\/tr>\n
    access_by_lua_block<\/code>(http \u4e3b server)<\/td>\n http_access_phase()<\/code><\/td>\n :830<\/td>\n <\/tr>\n
    balancer_by_lua_block<\/code>(http upstream)<\/td>\n http_balancer_phase()<\/code><\/td>\n :465 \/ :469 \/ :482<\/td>\n <\/tr>\n
    header_filter_by_lua_block<\/code><\/td>\n http_header_filter_phase()<\/code><\/td>\n :878 \/ :914 \/ :937<\/td>\n <\/tr>\n
    body_filter_by_lua_block<\/code><\/td>\n http_body_filter_phase()<\/code><\/td>\n :882 \/ :918 \/ :941<\/td>\n <\/tr>\n
    log_by_lua_block<\/code>(http)<\/td>\n http_log_phase()<\/code><\/td>\n :886 \/ :922 \/ :945<\/td>\n <\/tr>\n
    location @grpc_pass<\/code> \u7684 access_by_lua<\/code><\/td>\n grpc_access_phase()<\/code><\/td>\n :893<\/td>\n <\/tr>\n
    location @dubbo_pass<\/code> \u7684 access_by_lua<\/code><\/td>\n dubbo_access_phase()<\/code><\/td>\n :929<\/td>\n <\/tr>\n
    control server \u7684 content_by_lua<\/code><\/td>\n http_control()<\/code><\/td>\n :549<\/td>\n <\/tr>\n
    \/apisix\/admin<\/code> \u7684 content_by_lua<\/code><\/td>\n http_admin()<\/code><\/td>\n :645<\/td>\n <\/tr>\n
    \/apisix\/status<\/code><\/td>\n status()<\/code><\/td>\n :561<\/td>\n <\/tr>\n
    \/apisix\/status\/ready<\/code><\/td>\n status_ready()<\/code><\/td>\n :566<\/td>\n <\/tr>\n <\/tbody>\n<\/table>\n\n
    \n\n

    3. \u6a21\u5757\u52a0\u8f7d\u671f\u521d\u59cb\u5316(L17 ~ L88)<\/h2>\n\n

    3.1 JIT \u53c2\u6570(L17 ~ L26)<\/h3>\n\n
    if<\/span> require<\/span>(<\/span>\"ffi\"<\/span>).<\/span>os<\/span> ==<\/span> \"Linux\"<\/span> then<\/span>\n    require<\/span>(<\/span>\"ngx.re\"<\/span>).<\/span>opt<\/span>(<\/span>\"jit_stack_size\"<\/span>,<\/span> 200<\/span> *<\/span> 1024<\/span>)<\/span>\nend<\/span>\n<\/code><\/pre><\/div><\/div>\n\n