Bug 1879057: e2e: skip write/read cache when running Block-mode RWX PVC tests #378
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…in pod.Config For testing certain features, the BusyBox image does not provide all the tools that are needed. Notably 'dd' from BusyBox does not support direct-io that is required for skipping caches while doing writes and reads on a Block-mode PVC attached to different nodes.
… block PVCs By passing "oflag=nocache" and "iflag=direct", caching should be disabled while writing/reading with "dd" to a block device. The TestConcurrentAccessToSingleVolume() test is known to fail with certain storage backends (like Ceph RBD) when caching is enabled. The default BusyBox image used for testing does not support the required options for "dd". So instead of running with BusyBox, run the test with a Debian image.
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@nixpanic: This pull request references Bugzilla bug 1879057, which is invalid:
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@jsafrane: This pull request references Bugzilla bug 1879057, which is valid. The bug has been moved to the POST state. The bug has been updated to refer to the pull request using the external bug tracker. 3 validation(s) were run on this bug
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: jsafrane, mfojtik, nixpanic The full list of commands accepted by this bot can be found here. The pull request process is described here
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/retest Please review the full test history for this PR and help us cut down flakes. |
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/retest Please review the full test history for this PR and help us cut down flakes. |
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/retest Please review the full test history for this PR and help us cut down flakes. |
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/retest Please review the full test history for this PR and help us cut down flakes. |
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@nixpanic: All pull requests linked via external trackers have merged: Bugzilla bug 1879057 has been moved to the MODIFIED state. In response to this:
Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository. |
…WX PVC tests Vendor the Kubernetes changes from openshift/kubernetes#378. Fixes: RHBZ#1879057
…WX PVC tests Vendor the Kubernetes changes from openshift/kubernetes#378. Fixes: RHBZ#1879057
Backport kubernetes#94881 so that CSI Certification Suite tests can work on RWX Block-mode PVCs.
Request-review: @openshift/storage
Bug: RHBZ#1879057