Docker 中的 .NET 异常了怎么抓 Dump - qidao123.com技术社区-IT企服评测·应用市场

public class Program
{
public static void Main(string[] args)
{
var builder = WebApplication.CreateBuilder(args);
builder.Services.AddAuthorization();
var app = builder.Build();
app.UseAuthorization();
//1. crash
Task.Factory.StartNew(() =>
{
Test("a");
});
app.Run();
}
public static string Test(string a)
{
return Test("a" + a.Length);
}
}

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FROM mcr.microsoft.com/dotnet/aspnet:6.0 AS runtime
WORKDIR /app
COPY ./ ./
# 1. 使用中科大镜像源
RUN sed -i 's/deb.debian.org/mirrors.ustc.edu.cn/g' /etc/apt/sources.list
ENV COMPlus_DbgMiniDumpType 4
ENV COMPlus_DbgMiniDumpName /dumps/%p-%e-%h-%t.dmp
ENV COMPlus_DbgEnableMiniDump 1
ENTRYPOINT ["dotnet", "AspNetWebApi.dll"]

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{
"urls": "http://*:5001",
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
},
"AllowedHosts": "*"
}

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[root@localhost data]# docker build -t aspnetapp .
[+] Building 0.3s (9/9) FINISHED
=> [internal] load build definition from Dockerfile 0.0s
=> => transferring dockerfile: 447B 0.0s
=> [internal] load .dockerignore 0.0s
=> => transferring context: 2B 0.0s
=> [internal] load metadata for mcr.microsoft.com/dotnet/aspnet:6.0 0.3s
=> [1/4] FROM mcr.microsoft.com/dotnet/aspnet:6.0@sha256:a2a04325fdb2a871e964c89318921f82f6435b54 0.0s
=> [internal] load build context 0.0s
=> => transferring context: 860B 0.0s
=> CACHED [2/4] WORKDIR /app 0.0s
=> CACHED [3/4] COPY ./ ./ 0.0s
=> CACHED [4/4] RUN sed -i 's/deb.debian.org/mirrors.ustc.edu.cn/g' /etc/apt/sources.list 0.0s
=> exporting to image 0.0s
=> => exporting layers 0.0s
=> => writing image sha256:be69203995c0e5423b2af913549e618d7ee8306fff3961118ff403b1359ae571 0.0s
=> => naming to docker.io/library/aspnetapp 0.0s
[root@localhost data]# docker run -itd -p 5001:5001 --privileged -v /data2:/dumps --name aspnetcore_sample aspnetapp
ca34c9274d998096f8562cbef3a43a7cbd9aa5ff2923e0f3e702b159e0b2f447
[root@localhost data]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
ca34c9274d99 aspnetapp "dotnet AspNetWebApi…" 20 seconds ago Exited (139) 9 seconds ago aspnetcore_sample
[root@localhost data]# docker logs ca34c9274d99
...
at AspNetWebApi.Program.Test(System.String)
at AspNetWebApi.Program.Test(System.String)
at AspNetWebApi.Program.Test(System.String)
at AspNetWebApi.Program.Test(System.String)
at AspNetWebApi.Program+<>c.<Main>b__0_0()
at System.Threading.Tasks.Task.InnerInvoke()
at System.Threading.Tasks.Task+<>c.<.cctor>b__272_0(System.Object)
at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(System.Threading.Thread, System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
at System.Threading.Tasks.Task.ExecuteWithThreadLocal(System.Threading.Tasks.Task ByRef, System.Threading.Thread)
at System.Threading.Tasks.Task.ExecuteEntryUnsafe(System.Threading.Thread)
at System.Threading.ThreadPoolWorkQueue.Dispatch()
at System.Threading.PortableThreadPool+WorkerThread.WorkerThreadStart()
at System.Threading.Thread.StartCallback()
[createdump] Gathering state for process 1 dotnet
[createdump] Crashing thread 0017 signal 6 (0006)
[createdump] Writing full dump to file /dumps/1-dotnet-ca34c9274d99-1687746929.dmp
[createdump] Written 261320704 bytes (63799 pages) to core file
[createdump] Target process is alive
[createdump] Dump successfully written
[root@localhost data2]# cd /data2
[root@localhost data2]# ls -ln
total 255288
-rw-------. 1 0 0 261414912 Jun 26 10:35 1-dotnet-ca34c9274d99-1687746929.dmp

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public class Program
{
public static void Main(string[] args)
{
var builder = WebApplication.CreateBuilder(args);
builder.Services.AddAuthorization();
var app = builder.Build();
app.UseAuthorization();
app.Run();
}
}

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FROM mcr.microsoft.com/dotnet/aspnet:6.0 AS runtime
WORKDIR /app
COPY ./ ./
# 1. 使用中科大镜像源
RUN sed -i 's/deb.debian.org/mirrors.ustc.edu.cn/g' /etc/apt/sources.list
# 2. 安装 gdb & procdump
RUN apt-get update && apt-get install -y gdb
RUN dpkg -i procdump.deb
RUN echo "#!/bin/bash \n\
procdump -m 30 -w dotnet /dumps & \n\
dotnet \$1 \n\
" > ./start.sh
RUN chmod +x ./start.sh
ENTRYPOINT ["./start.sh", "AspNetWebApi.dll"]

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[root@localhost data]# docker build -t aspnetapp .
[+] Building 11.5s (13/13) FINISHED
[root@localhost data]# docker rm -f aspnetcore_sample
aspnetcore_sample
[root@localhost data]# docker run -it --rm -p 5001:5001 --privileged -v /data2:/dumps --name aspnetcore_sample aspnetapp
ProcDump v1.5 - Sysinternals process dump utility
Copyright (C) 2023 Microsoft Corporation. All rights reserved. Licensed under the MIT license.
Mark Russinovich, Mario Hewardt, John Salem, Javid Habibi
Sysinternals - www.sysinternals.com
Monitors one or more processes and writes a core dump file when the processes exceeds the
specified criteria.
[02:57:34 - INFO]: Waiting for processes 'dotnet' to launch
[02:57:34 - INFO]: Press Ctrl-C to end monitoring without terminating the process(es).
Process Name: dotnet
CPU Threshold: n/a
Commit Threshold: >=30 MB
Thread Threshold: n/a
File Descriptor Threshold: n/a
Signal: n/a
Exception monitor Off
Polling Interval (ms): 1000
Threshold (s): 10
Number of Dumps: 1
Output directory: /dumps
[02:57:34 - INFO]: Starting monitor for process dotnet (9)
info: Microsoft.Hosting.Lifetime[14]
Now listening on: http://[::]:5001
info: Microsoft.Hosting.Lifetime[0]
Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
Hosting environment: Production
info: Microsoft.Hosting.Lifetime[0]
Content root path: /app/
[02:57:35 - INFO]: Trigger: Commit usage:48MB on process ID: 9
[createdump] Gathering state for process 9 dotnet
[createdump] Writing full dump to file /dumps/dotnet_commit_2023-06-26_02:57:35.9
[createdump] Written 254459904 bytes (62124 pages) to core file
[createdump] Target process is alive
[createdump] Dump successfully written
[02:57:35 - INFO]: Core dump 0 generated: /dumps/dotnet_commit_2023-06-26_02:57:35.9
[02:57:36 - INFO]: Stopping monitors for process: dotnet (9)
[root@localhost data2]# ls -lh
total 243M
-rw-------. 1 root root 243M Jun 26 10:57 dotnet_commit_2023-06-26_02:57:35.9

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public static void Main(string[] args)
{
var builder = WebApplication.CreateBuilder(args);
builder.Services.AddAuthorization();
var app = builder.Build();
app.UseAuthorization();
//3. cpu
app.MapGet("/cpu", (HttpContext httpContext) =>
{
Task.Factory.StartNew(() => { bool b = true; while (true) { b = !b; } });
Task.Factory.StartNew(() => { bool b = true; while (true) { b = !b; } });
return new WeatherForecast();
});
app.Run();
}

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FROM mcr.microsoft.com/dotnet/aspnet:6.0 AS runtime
WORKDIR /app
COPY ./ ./
# 1. 使用中科大镜像源
RUN sed -i 's/deb.debian.org/mirrors.ustc.edu.cn/g' /etc/apt/sources.list
# 2. 安装 wget
RUN apt-get update && apt-get install -y gdb
RUN dpkg -i procdump.deb
RUN echo "#!/bin/bash \n\
procdump -c 20 -n 2 -s 5 -w dotnet /dumps & \n\
dotnet \$1 \n\
" > ./start.sh
RUN chmod +x ./start.sh
ENTRYPOINT ["./start.sh", "AspNetWebApi.dll"]

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[root@localhost data]# docker build -t aspnetapp .
[+] Building 0.4s (13/13) FINISHED
[root@localhost data]# docker run -it --rm -p 5001:5001 --privileged -v /data2:/dumps --name aspnetcore_sample aspnetapp
ProcDump v1.5 - Sysinternals process dump utility
Mark Russinovich, Mario Hewardt, John Salem, Javid Habibi
Sysinternals - www.sysinternals.com
Monitors one or more processes and writes a core dump file when the processes exceeds the
specified criteria.
[03:35:56 - INFO]: Waiting for processes 'dotnet' to launch
[03:35:56 - INFO]: Press Ctrl-C to end monitoring without terminating the process(es).
Process Name: dotnet
CPU Threshold: >= 20%
Commit Threshold: n/a
Thread Threshold: n/a
File Descriptor Threshold: n/a
Signal: n/a
Exception monitor Off
Polling Interval (ms): 1000
Threshold (s): 5
Number of Dumps: 2
Output directory: /dumps
[03:35:56 - INFO]: Starting monitor for process dotnet (8)
info: Microsoft.Hosting.Lifetime[14]
Now listening on: http://[::]:5001
info: Microsoft.Hosting.Lifetime[0]
Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
Hosting environment: Production
info: Microsoft.Hosting.Lifetime[0]
Content root path: /app/

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