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https://issues.apache.org/jira/browse/MESOS-9049?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chun-Hung Hsiao reassigned MESOS-9049:
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Assignee: Zhitao Li (was: Chun-Hung Hsiao)
> Agent GC could unmount a dangling persistent volume multiple times.
> -------------------------------------------------------------------
>
> Key: MESOS-9049
> URL: https://issues.apache.org/jira/browse/MESOS-9049
> Project: Mesos
> Issue Type: Bug
> Components: agent
> Affects Versions: 1.4.2, 1.5.2, 1.7.0, 1.6.1
> Reporter: Chun-Hung Hsiao
> Assignee: Zhitao Li
> Priority: Major
>
> When the agent GC an executor dir and the sandbox of one of its run that
> contains a dangling persistent volume, the agent might try to unmount the
> persistent volume twice, which leads to an {{EINVAL}} when trying to unmount
> the target for the second time.
> Here is the log from a failure run of
> {{GarbageCollectorIntegrationTest.ROOT_DanglingMount}}:
> {noformat}
> W0702 23:35:31.669946 25401 gc.cpp:241] Unmounting dangling mount point
> '/tmp/GarbageCollectorIntegrationTest_ROOT_DanglingMount_zkItvU/slaves/f4dc0941-e3b0-4f2c-b7f9-025a1af264c8-S0/frameworks/f4dc0941-e3b0-4f2c-b7f9-025a1af264c8-0000/executors/test-task123/runs/3fcde2c8-b461-4f22-afec-daa269291c95/dangling'
> of persistent volume
> '/tmp/GarbageCollectorIntegrationTest_ROOT_DanglingMount_zkItvU/volumes/roles/default-role/persistence-id'
> inside garbage collected path
> '/tmp/GarbageCollectorIntegrationTest_ROOT_DanglingMount_zkItvU/slaves/f4dc0941-e3b0-4f2c-b7f9-025a1af264c8-S0/frameworks/f4dc0941-e3b0-4f2c-b7f9-025a1af264c8-0000/executors/test-task123'
> W0702 23:35:31.683878 25401 gc.cpp:241] Unmounting dangling mount point
> '/tmp/GarbageCollectorIntegrationTest_ROOT_DanglingMount_zkItvU/slaves/f4dc0941-e3b0-4f2c-b7f9-025a1af264c8-S0/frameworks/f4dc0941-e3b0-4f2c-b7f9-025a1af264c8-0000/executors/test-task123/runs/3fcde2c8-b461-4f22-afec-daa269291c95/dangling'
> of persistent volume
> '/tmp/GarbageCollectorIntegrationTest_ROOT_DanglingMount_zkItvU/volumes/roles/default-role/persistence-id'
> inside garbage collected path
> '/tmp/GarbageCollectorIntegrationTest_ROOT_DanglingMount_zkItvU/slaves/f4dc0941-e3b0-4f2c-b7f9-025a1af264c8-S0/frameworks/f4dc0941-e3b0-4f2c-b7f9-025a1af264c8-0000'
> W0702 23:35:31.683912 25401 gc.cpp:248] Skipping deletion of
> '/tmp/GarbageCollectorIntegrationTest_ROOT_DanglingMount_zkItvU/slaves/f4dc0941-e3b0-4f2c-b7f9-025a1af264c8-S0/frameworks/f4dc0941-e3b0-4f2c-b7f9-025a1af264c8-0000'
> because unmount failed on
> '/tmp/GarbageCollectorIntegrationTest_ROOT_DanglingMount_zkItvU/slaves/f4dc0941-e3b0-4f2c-b7f9-025a1af264c8-S0/frameworks/f4dc0941-e3b0-4f2c-b7f9-025a1af264c8-0000/executors/test-task123/runs/3fcde2c8-b461-4f22-afec-daa269291c95/dangling':
> Failed to unmount
> '/tmp/GarbageCollectorIntegrationTest_ROOT_DanglingMount_zkItvU/slaves/f4dc0941-e3b0-4f2c-b7f9-025a1af264c8-S0/frameworks/f4dc0941-e3b0-4f2c-b7f9-025a1af264c8-0000/executors/test-task123/runs/3fcde2c8-b461-4f22-afec-daa269291c95/dangling':
> Invalid argument
> {noformat}
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