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https://issues.apache.org/jira/browse/MESOS-7742?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16329006#comment-16329006
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Andrei Budnik commented on MESOS-7742:
--------------------------------------
These patches ^^ are fixing the first cause described in the [first
patch|https://reviews.apache.org/r/65122/].
There is a second cause when an attempt to connect to IO-Switchboard fails with:
{code:java}
I1109 23:47:25.016929 27803 process.cpp:3982] Failed to process request for
'/slave(812)/api/v1': Failed to connect to
/tmp/mesos-io-switchboard-56bcba4b-6e81-4aeb-a0e9-41309ec991b5: Connection
refused
W1109 23:47:25.017009 27803 http.cpp:2944] Failed to attach to nested container
7ab572dd-78b5-4186-93af-7ac011990f80.b77944da-f1d5-4694-a51b-8fde150c5f7a:
Failed to connect to
/tmp/mesos-io-switchboard-56bcba4b-6e81-4aeb-a0e9-41309ec991b5: Connection
refused
I1109 23:47:25.017063 27803 process.cpp:1590] Returning '500 Internal Server
Error' for '/slave(812)/api/v1' (Failed to connect to
/tmp/mesos-io-switchboard-56bcba4b-6e81-4aeb-a0e9-41309ec991b5: Connection
refused)
{code}
The reason for this failure needs to be investigated.
> ContentType/AgentAPIStreamingTest.AttachInputToNestedContainerSession is flaky
> ------------------------------------------------------------------------------
>
> Key: MESOS-7742
> URL: https://issues.apache.org/jira/browse/MESOS-7742
> Project: Mesos
> Issue Type: Bug
> Components: agent
> Affects Versions: 1.5.0
> Reporter: Vinod Kone
> Assignee: Andrei Budnik
> Priority: Major
> Labels: flaky-test, mesosphere-oncall
> Fix For: 1.6.0
>
> Attachments: AgentAPITest.LaunchNestedContainerSession-badrun.txt,
> LaunchNestedContainerSessionDisconnected-badrun.txt
>
>
> Observed this on ASF CI and internal Mesosphere CI. Affected tests:
> {noformat}
> AgentAPIStreamingTest.AttachInputToNestedContainerSession
> AgentAPITest.LaunchNestedContainerSession
> AgentAPITest.AttachContainerInputAuthorization/0
> AgentAPITest.LaunchNestedContainerSessionWithTTY/0
> AgentAPITest.LaunchNestedContainerSessionDisconnected/1
> {noformat}
> This issue comes at least in three different flavours. Take
> {{AgentAPIStreamingTest.AttachInputToNestedContainerSession}} as an example.
> h5. Flavour 1
> {noformat}
> ../../src/tests/api_tests.cpp:6473
> Value of: (response).get().status
> Actual: "503 Service Unavailable"
> Expected: http::OK().status
> Which is: "200 OK"
> Body: ""
> {noformat}
> h5. Flavour 2
> {noformat}
> ../../src/tests/api_tests.cpp:6473
> Value of: (response).get().status
> Actual: "500 Internal Server Error"
> Expected: http::OK().status
> Which is: "200 OK"
> Body: "Disconnected"
> {noformat}
> h5. Flavour 3
> {noformat}
> /home/ubuntu/workspace/mesos/Mesos_CI-build/FLAG/CMake/label/mesos-ec2-ubuntu-16.04/mesos/src/tests/api_tests.cpp:6367
> Value of: (sessionResponse).get().status
> Actual: "500 Internal Server Error"
> Expected: http::OK().status
> Which is: "200 OK"
> Body: ""
> {noformat}
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