Flaky test: ResponseCompression_HostCompression

ryanbrandenburg commented 6 years ago

This test fails occasionally with the following error:

System.IO.InvalidDataException : The archive entry was compressed using an unsupported compression method.
   at System.IO.Compression.Inflater.Inflate(FlushCode flushCode)
   at System.IO.Compression.Inflater.ReadInflateOutput(Byte* bufPtr, Int32 length, FlushCode flushCode, Int32& bytesRead)
   at System.IO.Compression.Inflater.InflateVerified(Byte* bufPtr, Int32 length)
   at System.IO.Compression.DeflateStream.FinishReadAsyncMemory(ValueTask`1 readTask, Memory`1 buffer, CancellationToken cancellationToken)
   at System.IO.StreamReader.ReadBufferAsync()
   at System.IO.StreamReader.ReadToEndAsyncInternal()
   at ServerComparison.FunctionalTests.ResponseCompressionTests.ReadCompressedAsStringAsync(HttpContent content) in /_/test/ServerComparison.FunctionalTests/ResponseCompressionTests.cs:line 204
   at ServerComparison.FunctionalTests.ResponseCompressionTests.CheckCompressionAsync(HttpClient client, String url, ILogger logger) in /_/test/ServerComparison.FunctionalTests/ResponseCompressionTests.cs:line 179
   at ServerComparison.FunctionalTests.ResponseCompressionTests.ResponseCompression(TestVariant variant, Func`3 scenario, Boolean hostCompression, String testName) in /_/test/ServerComparison.FunctionalTests/ResponseCompressionTests.cs:line 134
--- End of stack trace from previous location where exception was thrown ---
------- Stdout: -------
| [0.001s] TestLifetime Information: Starting test ResponseCompression_HostCompression-Server: IISExpress, TFM: netcoreapp2.2, Type: Portable, Arch: x64, ANCM: V2, Host: OutOfProcess at 2018-08-02T01:59:54
| [0.004s] TestLifetime Information: Starting test ResponseCompression_HostCompression_IISExpress_netcoreapp2.2_x64_Portable at 2018-08-02T01:59:54
| [0.004s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: Deploying [Variation] :: ServerType=IISExpress, Runtime=CoreClr, Arch=x64, BaseUrlHint=, Publish=False
| [0.004s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: Executing: dotnet C:\BuildAgent\work\33bdfc1cae7b2a38\modules\ServerTests\test\ServerComparison.TestSites\bin\Release\netcoreapp2.2\ServerComparison.TestSites.dll
| [0.005s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: ContentRoot: C:\BuildAgent\work\33bdfc1cae7b2a38\modules\ServerTests\test\ServerComparison.TestSites
| [0.005s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: Attempting to start IIS Express on port: 58557
| [0.009s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: Executing command : C:\Program Files\IIS Express\iisexpress.exe /site:HttpTestSite /config:C:\BuildAgent\temp\buildTmp\tmp1E4E.tmp /trace:error /systray:false
| [0.009s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: SET ASPNETCORE_ENVIRONMENT=ResponseCompression
| [0.010s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: SET ASPNETCORE_DETAILEDERRORS=true
| [0.010s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: SET LAUNCHER_PATH=dotnet
| [0.010s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: SET LAUNCHER_ARGS=C:\BuildAgent\work\33bdfc1cae7b2a38\modules\ServerTests\test\ServerComparison.TestSites\bin\Release\netcoreapp2.2\ServerComparison.TestSites.dll
| [0.010s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: SET ASPNETCORE_CONTENTROOT=C:\BuildAgent\work\33bdfc1cae7b2a38\modules\ServerTests\test\ServerComparison.TestSites
| [0.012s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: iisexpress Process 10268 started
| [0.062s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: iisexpress stdout: Starting IIS Express ...
| [0.077s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: iisexpress stdout: Initializing the W3 Server Started CTC = 1277435515 
| [0.081s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: iisexpress stdout: W3 Server initializing WinSock.  CTC = 1277435515 
| [0.081s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: iisexpress stdout: W3 Server WinSock initialized.  CTC = 1277435515 
| [0.081s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: iisexpress stdout: W3 Server ThreadPool initialized (ipm has signalled).  CTC = 1277435515 
| [0.102s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: iisexpress stdout: Start listenerChannel http:0
| [0.103s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: iisexpress stdout: Successfully registered URL "http://localhost:58557/" for site "HttpTestSite" application "/"
| [0.103s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: iisexpress stdout: Registration completed for site "HttpTestSite"
| [0.103s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: iisexpress stdout: AppPool 'IISExpressAppPool' initialized
| [0.103s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: iisexpress stdout: InitComplete event signalled
| [0.103s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: iisexpress stdout: IIS Express is running.
| [0.103s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: Started iisexpress successfully. Process Id : 10268, Port: 58557
| [0.103s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: Application ready at URL: http://localhost:58557/
| [0.103s] ResponseCompression Warning: Retry count 1..
| [0.113s] Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISExpressDeployer Information: 
...

Other tests within that build may have failed with a similar message, but they are not listed here. Check the link above for more info.

CC @Eilon,@muratg,@mkArtakMSFT

This issue was made automatically. If there is a problem contact @ryanbrandenburg.

ryanbrandenburg commented 6 years ago

Please use this workflow to address this flaky test issue, including checking applicable checkboxes and filling in the applicable "TODO" entries:

Is this actually a flaky test?
- No, this is a regular test failure, fix the test/product (TODO: Link to commit/PR)
- Yes, proceed below...
Is this test failure caused by product code flakiness? (Either this product, or another product this test depends on.)
- [ ] File a bug against the product (TODO: Link to other bug)
- Is it possible to change the test to avoid the flakiness?
- Yes? Go to the "Change the test!" section.
- No?
  - [ ] Disable the test (TODO: Link to PR/commit)
  - [ ] Wait for other bug to be resolved
  - [ ] Wait for us to get build that has the fix
  - [ ] Re-enable our test (TODO: Link to PR/commit)
  - [ ] Close this bug
Is it that the test itself is flaky? This includes external transient problems (e.g. remote server problems, file system race condition, etc.)
- Is there is a way to change our test to avoid this flakiness?
- Yes? Change the test!
  - [ ] Change the test to avoid the flakiness, for example by using a different test strategy, or by adding retries w/ timeouts (TODO: Link to PR/commit)
  - [ ] Run the test 100 times locally as a sanity check.
  - [ ] Close this bug
- No?
  - [ ] Delete the test because flaky tests are not useful (TODO: Link to PR/commit)

This comment was made automatically. If there is a problem contact @ryanbrandenburg.

muratg commented 6 years ago

Backlogging for now as I haven't seen RaaS update this. Will eventually close if it we don't see this again.

Eilon commented 6 years ago

Looks like it hasn't failed in a month. Maybe close it?

aspnet / ServerTests

Flaky test: ResponseCompression_HostCompression #136