
波多野结衣在线视频
這個月初,有位知友wx上找到我,說他的api過一段時間后,就會出現只须請求美女视频图片,沒有響應的情況,截圖如下:
美女视频图片
可能大家都知道美女视频图片,字符串存在字符串常量池中,被栈或堆上的变量引用。如果变量的值是字符串字面量,则在栈上的变量直接引用字符串常量池中的字符串;如果是字符串是 new String 创建的,则会在堆上创建 String 对象,指向字符串常量池中的字符串,栈上变量指向堆中的 String 对象。
之所以网关对微服务这么重要美女视频图片,主要有以下几点原因:
Go slice 里面放struct 应该使用指针吗?美女视频图片
本文来自于我在所在团队(淘宝店铺)内部制定、落地、推广 ESLint 规则集的收获,将会简要的介绍一批我认为在 TypeScript 分享中非常有必要的规则,通过这篇文章,你会了解到在制定规则时我们考虑的是什么美女视频图片,对于 TypeScript 代码进行约束的思考,以及如何在自己的团队内推广这一套规则。
從知友的描写中看樣子要领是被什么東西卡住了美女视频图片,這種卡死的問題解決起來相對簡單,接下來我就用 windbg 給环球分析一下。
二:Windbg 分析 1. Request 請求正在干嘛?既然知友說 api 有 request 無 response美女视频图片,那何如去驗證知友的話對不對呢?我們都澄澈 .NET 用 HttpContext 來默示一個請求, 一本加勒比hezyo无码专区话里有话即是不错去抓 HttpContext 下的時長屬性,Netext 中有一個 !whttp 高歌不错幫助我們。
0:000> !whttp HttpContext Thread Time Out Running Status Verb Url 000000563bf803b0 42 00:01:50 00:01:24 200 POST http://xxx.com:30003/Wms/xxx/xxx?xxx=xxx&xxx=x-HN 000000563bf84660 -- 00:01:50 Finished 200 GET http://xxx.com:30003/ 000000563c4a0470 51 00:01:50 00:00:12 200 POST http://xxx.com:30003/Wms/xxx/xxx?xxx=xxx&xxx=xxx2C 00000056bbf63590 30 00:01:50 00:02:41 200 POST http://xxx.com:30003/Wms/xxx/xxx?xxx=xxx&xxx=xxx-B2C 00000056bc82a038 -- 00:01:50 Finished 200 GET http://localhost:30003/ 00000056bc84a3e8 44 00:01:50 00:00:51 200 POST http://xxx.com:30003/Wms/xxx/xxx?xxx=xxx&xxx=x 00000056bc8671c8 46 00:01:50 00:00:45 200 POST http://xxx.com:30003/Wms/xxx/xxx?xxx=xxx&xxx=xxx-B2C 000000573bf44698 35 00:01:50 00:02:39 200 POST http://xxx.com:30003/Wms/xxx/xxx?xxx=xxx&xxx=x 000000573bf483c0 33 00:01:50 00:02:41 200 POST http://xxx.com:30003/Wms/xxx/xxx?xxx=xxx&xxx=x-HN 000000573bf97e80 40 00:01:50 00:02:32 200 POST http://xxx.com:30003/Wms/xxx/xxx?xxx=xxx&xxx=ZJB2C 000000573c583b08 -- 00:01:50 Finished 200 GET http://localhost:30003/ 000000573c589ec8 -- 00:01:50 Finished 200 GET http://xxx.com:30003/Wms/xxx/xxx/xxx 000000573c760e28 -- 00:01:50 Finished 200 POST http://xxx.com:30003/Wms/xxx/xxx/xxx 000000573c95f990 48 00:01:50 00:00:31 200 POST http://xxx.com:30003/Wms/Common/xxx?xxx=xxx&xxx=x-HN 00000057bbf4f8e8 31 00:01:50 00:02:12 200 POST http://xxx.com:30003/Wms/xxx/xxx?xxx=xxx&xxx=x 00000057bc080340 50 00:01:50 00:00:19 200 POST http://xxx.com:30003/Wms/xxx/xxx?xxx=xxx&xxx=x 000000583c4aee80 43 00:01:50 00:01:11 200 POST http://xxx.com:30003/Wms/xxx/xxx?xxx=xxx&xxx=xxx2B 000000583c4d0c50 53 00:01:50 00:00:01 200 POST http://xxx.com:30003/Wms/xxx/xxx?xxx=xxx&xxx=xxx2B 00000058bbf8f1a0 34 00:01:50 00:02:22 200 POST http://xxx.com:30003/Wms/xxx/xxx?xxx=xxx&xxx=xxx2B 000000593bfe1758 41 00:01:50 00:01:22 200 POST http://xxx.com:30003/Wms/xxx/xxx?xxx=xxx&xxx=xxx2C 000000593c892160 -- 00:01:50 Finished 200 GET http://xxx.com:30003/Wms/xxx/xxx/xxxJob 000000593ca813b0 45 00:01:50 00:00:30 200 POST http://xxx.com:30003/Wms/xxx/xxx?xxx=xxx&xxx=xxx-HN 000000593caa45d8 -- 00:01:50 Finished 200 GET http://xxx.com:30003/ 00000059bc1ad808 32 00:01:50 00:01:45 200 POST http://xxx.com:30003/Wms/xxx/xxx?xxx=xxx&xxx=xxx-B2C 00000059bc1c3d70 36 00:01:50 00:01:29 200 POST http://xxx.com:30003/Wms/xxx/xxx?xxx=xxx&xxx=x 25 HttpContext object(s) found matching criteria
從 Running 列不错看到大多請求都已經達到1分鐘以上,這也驗證了知友所說的卡死問題,按照經驗,不错取 Running 列中最大的 httpContext 场地的線程,也即是上头的 30 和 33 號線程, 望望它們都在干什么?
2. 筹商 Running 最長線程接下來切到 30 和 33 號線程,望望它們的線程棧。
0:000> ~30s ntdll!NtWaitForSingleObject+0xa: 00007ffd`b81f024a c3 ret 0:030> !clrstack OS Thread Id: 0x29d0 (30) Child SP IP Call Site 0000005acc3ac590 00007ffdb81f024a [PrestubMethodFrame: 0000005acc3ac590] xxx.xxx.RedisConnectionHelp.get_Instance() 0000005acc3ac850 00007ffd4dd78911 xxx.xxx.RedisCache..ctor(Int32, System.String) 0000005acc3ac8c0 00007ffd4dd78038 xxx.xxx.CacheByRedis.HashGet[[System.__Canon, mscorlib]](System.String,波多野结衣在线视频 System.String, Int32) 0000005acc3ac968 00007ffdabef1f7c [StubHelperFrame: 0000005acc3ac968] 0000005acc3ac9c0 00007ffd4dd77f18 xxx.xxx.Cache.xxx.GetCacheNotAreaDataEntity[[System.__Canon, mscorlib]](System.String, System.String, System.String) ... 0:030> ~33s ntdll!NtWaitForMultipleObjects+0xa: 00007ffd`b81f07ba c3 ret 0:033> !clrstack OS Thread Id: 0x3ad4 (33) Child SP IP Call Site 0000005accabae90 00007ffdb81f07ba [GCFrame: 0000005accabae90] 0000005accabafb8 00007ffdb81f07ba [HelperMethodFrame_1OBJ: 0000005accabafb8] System.Threading.Monitor.ObjWait(Boolean, Int32, System.Object) 0000005accabb0d0 00007ffdaac60d64 System.Threading.ManualResetEventSlim.Wait(Int32, System.Threading.CancellationToken) 0000005accabb160 00007ffdaac5b4bb System.Threading.Tasks.Task.SpinThenBlockingWait(Int32, System.Threading.CancellationToken) 0000005accabb1d0 00007ffdab5a01d1 System.Threading.Tasks.Task.InternalWait(Int32, System.Threading.CancellationToken) 0000005accabb2a0 00007ffdab59cfa7 System.Threading.Tasks.Task`1[[System.__Canon, mscorlib]].GetResultxxx(Boolean) 0000005accabb2e0 00007ffd4d8d338f xxx.Config.xxx.Config`1[[System.__Canon, mscorlib]].GetConfig(xxx.Config.Model.ConfigListener, System.Func`2<xxx.Config.Request.GetConfigRequest,System.Threading.Tasks.Task`1<System.String>>) 0000005accabb340 00007ffd4d8d2f40 xxx.Config.xxx.Config`1[[System.__Canon, mscorlib]].get_Item(System.String, System.String) 0000005accabb3c0 00007ffd4dd78f7f xxx.Util.BaseConfig.get_GetRedisConn() 0000005accabb440 00007ffd4dd78e9c xxx.xxx.RedisConnectionHelp.GetConnectionString() 0000005accabb4a0 00007ffd4dd789cb xxx.xxx.RedisConnectionHelp..cctor() 0000005accabb940 00007ffdabef6953 [GCFrame: 0000005accabb940] 0000005accabc5b0 00007ffdabef6953 [PrestubMethodFrame: 0000005accabc5b0] xxx.xxx.RedisConnectionHelp.get_Instance() 0000005accabc870 00007ffd4dd78911 xxx.xxx.RedisCache..ctor(Int32, System.String) 0000005accabc8e0 00007ffd4dd78038 xxx.xxx.CacheByRedis.HashGet[[System.__Canon, mscorlib]](System.String, System.String, Int32) 0000005accabc988 00007ffdabef1f7c [StubHelperFrame: 0000005accabc988] 0000005accabc9e0 00007ffd4dd77f18 xxx.Core.Cache.xxx.GetCacheNotAreaDataEntity[[System.__Canon, mscorlib]](System.String, System.String, System.String) ...
上头的信息不難發現 30 號線程正卡在 RedisConnectionHelp.get_Instance() 處,33 號線已經進入了 RedisConnectionHelp.get_Instance() 步调中,临了在 GetConfig() 處恭候 Result 的結果,按經驗來說,30 號線程看樣子正在鎖恭候, 33 號正在恭候異步結果,接下來的结巴點即是筹商下 RedisConnectionHelp.Instance 處代碼。
3. 尋找問題代碼接下來用反編譯器具 ILSpy 找到問題代碼美女视频图片。
public static class RedisConnectionHelp { public static ConnectionMultiplexer Instance { get { if (_instance == null) { lock (Locker) { if (_instance == null
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