{"id":107773,"date":"2026-09-20T10:01:30","date_gmt":"2026-09-20T02:01:30","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/107773.html"},"modified":"2026-09-20T10:01:30","modified_gmt":"2026-09-20T02:01:30","slug":"%e7%94%9f%e4%ba%a7%e4%ba%8b%e6%95%85%e5%a4%8d%e7%9b%98%ef%bc%9a%e4%b8%80%e6%ac%a1-goroutine-%e6%b3%84%e6%bc%8f%e5%af%bc%e8%87%b4%e6%9c%8d%e5%8a%a1%e5%99%a8-oom-%e7%9a%84%e6%8e%92%e6%9f%a5%e5%85%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/107773.html","title":{"rendered":"\u751f\u4ea7\u4e8b\u6545\u590d\u76d8\uff1a\u4e00\u6b21 Goroutine \u6cc4\u6f0f\u5bfc\u81f4\u670d\u52a1\u5668 OOM \u7684\u6392\u67e5\u5168\u8fc7\u7a0b"},"content":{"rendered":"<h2>\u751f\u4ea7\u4e8b\u6545\u590d\u76d8&#xff1a;\u4e00\u6b21 Goroutine \u6cc4\u6f0f\u5bfc\u81f4\u670d\u52a1\u5668 OOM \u7684\u6392\u67e5\u5168\u8fc7\u7a0b<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260920020129-6aaf3e794c841.webp\" alt=\"\u5c01\u9762\u4fe1\u606f\u56fe\" \/><\/p>\n<p>\u5728 Go \u8bed\u8a00\u6784\u5efa\u7684\u5fae\u670d\u52a1\u9ad8\u5e76\u53d1\u751f\u4ea7\u73af\u5883\u4e2d&#xff0c;\u5185\u5b58\u6ea2\u51fa\u5d29\u6e83&#xff08;OOMKilled&#xff09; \u5f80\u5f80\u662f\u7cfb\u7edf\u9762\u4e34\u7684\u6700\u4e25\u91cd\u7684 P0 \u7ea7\u4e8b\u6545\u4e4b\u4e00\u3002<\/p>\n<p>\u4e0a\u5468\u4e00\u51cc\u6668 03:20&#xff0c;\u6211\u4eec\u6838\u5fc3\u4e1a\u52a1\u96c6\u7fa4\u7684\u4e00\u4e2a\u6838\u5fc3\u7f51\u5173\u8282\u70b9\u7a81\u53d1\u544a\u8b66&#xff1a;<\/p>\n<ul>\n<li>\u5355 Pod \u7684\u5185\u5b58\u4f7f\u7528\u91cf\u5728 48 \u5c0f\u65f6\u5185\u4ece\u5e73\u65f6\u7684 250MB \u4e00\u8def\u5355\u8c03\u722c\u5347\u81f3 16GB&#xff1b;<\/li>\n<li>\u6700\u7ec8\u89e6\u53d1 Kubernetes \u5bbf\u4e3b\u673a\u7684\u5185\u5b58\u786c\u9650\u5236&#xff0c;Pod \u77ac\u95f4\u88ab\u5185\u6838 OOMKilled \u5f3a\u884c\u6740\u6b7b&#xff1b;<\/li>\n<li>\u7d27\u63a5\u7740&#xff0c;\u6240\u6709\u5206\u53d1\u5230\u8be5\u8282\u70b9\u7684 HTTP \u957f\u8fde\u63a5\u5168\u7ebf\u65ad\u5f00&#xff0c;\u4e0b\u6e38\u4f9d\u8d56\u670d\u52a1\u6536\u5230\u5927\u91cf\u8fde\u63a5\u91cd\u7f6e\u62a5\u9519\u3002<\/li>\n<\/ul>\n<p>\u4ee4\u4eba\u56f0\u60d1\u7684\u662f&#xff1a;\u5728\u4e8b\u6545\u53d1\u751f\u671f\u95f4&#xff0c;\u4e1a\u52a1\u6d41\u91cf\u6781\u5176\u5e73\u7a33&#xff08;QPS \u4e0d\u8db3 200&#xff09;&#xff0c;\u6570\u636e\u5e93\u4e5f\u6ca1\u6709\u4efb\u4f55\u6162\u67e5\u8be2\u62a5\u8b66\u3002<\/p>\n<p>\u4eca\u5929\u6211\u4eec\u628a\u8fd9\u6b21\u4e8b\u6545\u7684 pprof \u6293\u5305\u53d6\u8bc1\u3001Goroutine \u8c03\u7528\u6808\u6df1\u5ea6\u6bd4\u5bf9\u3001\u6839\u56e0\u4ee3\u7801\u6df1\u5ea6\u5256\u6790\u4e0e\u9632\u8303\u673a\u5236 \u5b8c\u6574\u590d\u76d8\u3002<\/p>\n<hr \/>\n<h3>\u4e00\u3001\u6545\u969c\u73b0\u573a\u4e0e\u6392\u67e5\u65f6\u5e8f<\/h3>\n<p>sequenceDiagram<br \/>\n    participant K8s as K8s \u8c03\u5ea6\u63a7\u5236\u9762<br \/>\n    participant GoNode as \u6545\u969c Go \u670d\u52a1 Pod<br \/>\n    participant Engineer as \u503c\u73ed\u67b6\u6784\u5e08<\/p>\n<p>    Note over GoNode: \u8fd0\u884c 48 \u5c0f\u65f6&#xff0c;\u5185\u5b58\u4ece 250MB \u7f13\u6162\u7ebf\u6027\u81a8\u80c0\u81f3 16GB!<br \/>\n    K8s-&gt;&gt;GoNode: 03:20 \u8fbe\u5230 Memory Limit (16Gi)&#xff0c;\u53d1\u9001 SIGKILL \u5f3a\u5236 OOMKilled!<br \/>\n    GoNode&#8211;&gt;&gt;K8s: \u8fdb\u7a0b\u77ac\u95f4\u9635\u4ea1&#xff0c;Pod \u91cd\u542f<br \/>\n    Note over Engineer: 03:25 \u5de5\u7a0b\u5e08\u767b\u5f55\u5907\u7528\u5b58\u6d3b\u8282\u70b9 (\u540c\u6279\u6b21\u8282\u70b9, \u5185\u5b58\u5df2\u8fbe 14GB!)<br \/>\n    Engineer-&gt;&gt;GoNode: 03:26 \u575a\u51b3\u4e0d\u91cd\u542f&#xff0c;\u6267\u884c pprof \u5bfc\u51fa goroutine \u548c heap \u5feb\u7167<br \/>\n    Note over Engineer: 03:30 \u53d1\u73b0 28 \u4e07\u4e2a\u534f\u7a0b\u5361\u6b7b\u5728\u672a\u5173\u95ed\u7684 HTTP Response Body \u4e0a!<\/p>\n<hr \/>\n<h3>\u4e8c\u3001\u7b2c\u4e00\u73b0\u573a\u8bc1\u636e&#xff1a;pprof \u5feb\u7167\u5206\u6790<\/h3>\n<p>\u7531\u4e8e Kubernetes \u96c6\u7fa4\u4e2d\u90e8\u7f72\u4e86\u591a\u4e2a\u526f\u672c&#xff0c;\u503c\u73ed\u5de5\u7a0b\u5e08\u7b2c\u4e00\u65f6\u95f4\u627e\u5230\u4e86\u53e6\u4e00\u4e2a\u540c\u6279\u6b21\u542f\u52a8\u3001\u5185\u5b58\u5df2\u9ad8\u8fbe 14GB \u4e14\u5373\u5c06 OOM \u7684\u8282\u70b9&#xff0c;\u6293\u53d6\u4e86\u5168\u91cf Goroutine \u6808\u4fe1\u606f&#xff1a;<\/p>\n<p># \u6293\u53d6\u5f53\u524d 28 \u4e07\u4e2a\u534f\u7a0b\u7684\u8c03\u7528\u6808<br \/>\ncurl &#034;http:\/\/127.0.0.1:6060\/debug\/pprof\/goroutine?debug&#061;2&#034; &gt; \/tmp\/goroutine_leak.txt<\/p>\n<p>\u5728\u7ec8\u7aef\u8fd0\u884c\u805a\u5408\u7edf\u8ba1\u547d\u4ee4&#xff1a;<\/p>\n<p>cat \/tmp\/goroutine_leak.txt | grep -E &#034;^goroutine [0-9]&#043;&#034; -A 5 | grep -v &#034;goroutine&#034; | sort | uniq -c | sort -nr | head -n 5<\/p>\n<h4>\u7ec8\u7aef\u8f93\u51fa\u7684\u81f4\u547d\u8bc1\u636e&#xff08;\u771f\u51f6\u73b0\u5f62&#xff09;&#xff1a;<\/h4>\n<p>278490 net\/http.(*persistConn).readLoop<br \/>\n       net\/http.(*Transport).dialConn<br \/>\n       myproject\/client\/llm_gateway.go:58<\/p>\n<ul>\n<li>27.8 \u4e07\u4e2a\u534f\u7a0b&#xff08;\u5360\u603b\u6570\u7684 99%&#xff01;&#xff09;\u5168\u90e8\u5361\u6b7b\u5728 net\/http.(*persistConn).readLoop \u4e0a&#xff01;<\/li>\n<\/ul>\n<hr \/>\n<h3>\u4e09\u3001\u4e8b\u6545\u6839\u56e0\u7269\u7406\u6df1\u5ea6\u5256\u6790<\/h3>\n<p>\u987a\u7740\u8c03\u7528\u6808\u6253\u5f00 llm_gateway.go:58&#xff0c;\u53d1\u73b0\u4e86\u4e0b\u9762\u8fd9\u6bb5\u770b\u4f3c\u6781\u5176\u666e\u901a\u7684 HTTP \u5ba2\u6237\u7aef\u8c03\u7528\u4ee3\u7801&#xff1a;<\/p>\n<p>\/\/ \u274c \u5bfc\u81f4 28 \u4e07\u534f\u7a0b\u6cc4\u6f0f\u7684\u81f4\u547d\u4ee3\u7801&#xff1a;<br \/>\nfunc CallRemoteAuthCheck(targetURL string) (bool, error) {<br \/>\nreq, _ :&#061; http.NewRequest(&#034;GET&#034;, targetURL, nil)<\/p>\n<p>\/\/ \u53d1\u8d77 HTTP \u8bf7\u6c42<br \/>\nresp, err :&#061; http.DefaultClient.Do(req)<br \/>\nif err !&#061; nil {<br \/>\nreturn false, err<br \/>\n}<\/p>\n<p>\/\/ \u81f4\u547d\u9690\u60a3 1&#xff1a;\u5fd8\u8bb0\u5199 defer resp.Body.Close()&#xff01;<br \/>\n\/\/ \u81f4\u547d\u9690\u60a3 2&#xff1a;\u6ca1\u6709\u8bfb\u53d6\u5b8c\u6bd5 resp.Body \u5185\u5bb9&#xff01;<\/p>\n<p>if resp.StatusCode &#061;&#061; http.StatusOK {<br \/>\nreturn true, nil \/\/ \u51fd\u6570\u76f4\u63a5 return \u8fd4\u56de&#xff01;<br \/>\n}<br \/>\nreturn false, nil<br \/>\n}<\/p>\n<h4>\u4e3a\u4ec0\u4e48\u5fd8\u8bb0 resp.Body.Close() \u4f1a\u5f15\u53d1\u534f\u7a0b\u4e0e\u5185\u5b58\u53cc\u91cd\u96ea\u5d29&#xff1f;<\/h4>\n<li>Go \u6807\u51c6\u5e93 http.Transport \u7684\u8fde\u63a5\u590d\u7528\u673a\u5236&#xff08;Keep-Alive&#xff09;&#xff1a;\n<ul>\n<li>\u5f53\u8c03\u7528 client.Do(req) \u65f6&#xff0c;\u5e95\u5c42\u4f1a\u4ece\u8fde\u63a5\u6c60\u83b7\u53d6\u6216\u65b0\u5efa\u4e00\u4e2a TCP \u8fde\u63a5&#xff0c;\u5e76\u4e3a\u8be5\u8fde\u63a5\u542f\u52a8 readLoop \u548c writeLoop \u4e24\u4e2a\u540e\u53f0\u5e38\u9a7b Goroutine&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<li>\u53ea\u6709\u663e\u5f0f Close() \u4e14\u6392\u7a7a Body&#xff0c;\u8fde\u63a5\u624d\u80fd\u5f52\u8fd8\u8fde\u63a5\u6c60&#xff1a;\n<ul>\n<li>\u5982\u679c\u4e1a\u52a1\u4ee3\u7801\u76f4\u63a5 return \u4e14\u6ca1\u6709\u8c03\u7528 resp.Body.Close()&#xff0c;\u5e95\u5c42 TCP \u8fde\u63a5\u5c06\u5904\u4e8e\u201c\u672a\u91ca\u653e\u4e5f\u65e0\u6cd5\u590d\u7528\u201d\u7684\u60ac\u6302\u72b6\u6001&#xff1b;<\/li>\n<li>\u5185\u90e8\u7684 readLoop \u534f\u7a0b\u4f1a\u6c38\u8fdc\u963b\u585e\u5728 TCP Socket \u7684\u8bfb\u53d6\u7b49\u5f85\u4e2d&#xff0c;\u8fd9\u4e2a Goroutine \u53ca\u5176\u5173\u8054\u7684\u6570 KB \u7f13\u51b2\u533a\u5c06\u6c38\u8fdc\u65e0\u6cd5\u88ab GC \u56de\u6536&#xff01;<\/li>\n<\/ul>\n<\/li>\n<li>\u5728\u6570\u4e07\u6b21\u9ad8\u9891\u8c03\u7528\u540e&#xff0c;28 \u4e07\u4e2a\u60ac\u6302\u7684 readLoop \u534f\u7a0b\u8fde\u540c\u5b83\u4eec\u6301\u6709\u7684\u5e95\u5c42 TCP \u7f13\u51b2\u533a&#xff0c;\u5c06 16GB \u7269\u7406\u5185\u5b58\u5f7b\u5e95\u8695\u98df\u6b86\u5c3d&#xff01;<\/li>\n<hr \/>\n<h3>\u56db\u3001\u751f\u4ea7\u7ea7\u6839\u672c\u6027\u4fee\u590d\u65b9\u6848<\/h3>\n<h4>\u9ec4\u91d1\u94c1\u5f8b&#xff1a;\u5728 err &#061;&#061; nil \u7684\u4e0b\u4e00\u884c&#xff0c;\u5fc5\u987b\u4e25\u683c\u6267\u884c defer resp.Body.Close() \u5e76\u6392\u7a7a Body&#xff01;<\/h4>\n<p>\/\/ \u2705 \u751f\u4ea7\u7ea7\u4e25\u8c28\u4fee\u590d\u4ee3\u7801&#xff1a;<br \/>\nfunc CallRemoteAuthCheckFixed(ctx context.Context, client *http.Client, targetURL string) (bool, error) {<br \/>\nreq, err :&#061; http.NewRequestWithContext(ctx, &#034;GET&#034;, targetURL, nil)<br \/>\nif err !&#061; nil {<br \/>\nreturn false, err<br \/>\n}<\/p>\n<p>resp, err :&#061; client.Do(req)<br \/>\nif err !&#061; nil {<br \/>\nreturn false, err<br \/>\n}<\/p>\n<p>\/\/ \u6838\u5fc3\u7b2c\u4e00\u6b65&#xff1a;\u5fc5\u987b\u7b2c\u4e00\u65f6\u95f4 defer \u5173\u95ed Body&#xff01;<br \/>\ndefer resp.Body.Close()<\/p>\n<p>\/\/ \u6838\u5fc3\u7b2c\u4e8c\u6b65&#xff1a;\u5373\u4f7f\u4e0d\u9700\u8981 Body \u6570\u636e&#xff0c;\u4e5f\u5fc5\u987b\u5c06\u5176\u8bfb\u7a7a\u5e76\u4e22\u5f03&#xff08;Discard&#xff09;&#xff0c;<br \/>\n\/\/ \u786e\u4fdd\u5e95\u5c42 TCP \u8fde\u63a5\u80fd\u591f\u88ab\u5b89\u5168\u91cd\u7528&#xff0c;\u907f\u514d\u5173\u95ed\u8fde\u63a5\u5f00\u9500&#xff01;<br \/>\n_, _ &#061; io.Copy(io.Discard, resp.Body)<\/p>\n<p>if resp.StatusCode &#061;&#061; http.StatusOK {<br \/>\nreturn true, nil<br \/>\n}<br \/>\nreturn false, nil<br \/>\n}<\/p>\n<hr \/>\n<h3>\u4e94\u3001\u81ea\u5b9a\u4e49\u9ad8\u5e76\u53d1 http.Client \u53c2\u6570\u52a0\u56fa<\/h3>\n<p>\u751f\u4ea7\u73af\u5883\u575a\u51b3\u7981\u6b62\u76f4\u63a5\u4f7f\u7528 http.DefaultClient&#xff08;\u56e0\u4e3a\u5176\u9ed8\u8ba4 Timeout&#061;0 \u65e0\u9650\u8d85\u65f6&#xff0c;\u4e14\u8fde\u63a5\u6c60\u53c2\u6570\u504f\u4fdd\u5b88&#xff09;&#xff1a;<\/p>\n<p>var SafeHTTPClient &#061; &amp;http.Client{<br \/>\nTimeout: 5 * time.Second, \/\/ \u5f3a\u5236 5 \u79d2\u5168\u5c40\u8d85\u65f6<br \/>\nTransport: &amp;http.Transport{<br \/>\nProxy: http.ProxyFromEnvironment,<br \/>\nDialContext: (&amp;net.Dialer{<br \/>\nTimeout:   2 * time.Second,<br \/>\nKeepAlive: 30 * time.Second,<br \/>\n}).DialContext,<br \/>\nMaxIdleConns:        500,<br \/>\nMaxIdleConnsPerHost: 100,<br \/>\nIdleConnTimeout:     90 * time.Second, \/\/ \u7a7a\u95f2\u8fde\u63a5 90 \u79d2\u81ea\u52a8\u91ca\u653e<br \/>\nTLSHandshakeTimeout: 2 * time.Second,<br \/>\n},<br \/>\n}<\/p>\n<hr \/>\n<h3>\u516d\u3001\u751f\u4ea7\u6cbb\u7406\u9632\u7ebf<\/h3>\n<li>\u9759\u6001\u4ee3\u7801\u5206\u6790&#xff08;bodyclose linter&#xff09;&#xff1a;\u5728 CI \u6d41\u6c34\u7ebf\u4e2d\u542f\u7528 bodyclose \u63d2\u4ef6&#xff0c;\u4efb\u4f55\u672a Close \u7684 HTTP \u54cd\u5e94\u5728\u63d0\u4ea4 PR \u65f6\u76f4\u63a5\u62c9\u7ea2\u963b\u65ad&#xff1b;<\/li>\n<li>Prometheus \u534f\u7a0b\u6c34\u4f4d\u544a\u8b66&#xff1a;\u76d1\u63a7\u6307\u6807 go_goroutines&#xff0c;\u4e00\u65e6\u5355\u8282\u70b9\u534f\u7a0b\u6570\u7a81\u7834 10,000 \u7acb\u5373\u63a8\u53d1\u9884\u8b66\u5de5\u5355\u3002<\/li>\n<p>\u628a\u6bcf\u4e00\u4e2a\u7f51\u7edc\u8fde\u63a5\u7684\u751f\u547d\u5468\u671f\u95ed\u73af\u505a\u5230\u4e25\u4e1d\u5408\u7f1d&#xff0c;Go \u670d\u52a1\u624d\u80fd\u5728\u957f\u8fbe\u6570\u6708\u7684\u957f\u5468\u671f\u8fd0\u8f6c\u4e2d\u6c38\u4e0d\u5b95\u673a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u751f\u4ea7\u4e8b\u6545\u590d\u76d8&#xff1a;\u4e00\u6b21 Goroutine \u6cc4\u6f0f\u5bfc\u81f4\u670d\u52a1\u5668 OOM \u7684\u6392\u67e5\u5168\u8fc7\u7a0b\u5728 Go \u8bed\u8a00\u6784\u5efa\u7684\u5fae\u670d\u52a1\u9ad8\u5e76\u53d1\u751f\u4ea7\u73af\u5883\u4e2d&#xff0c;\u5185\u5b58\u6ea2\u51fa\u5d29\u6e83&#xff08;OOMKilled&#xff09; 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