[ https://ovirt-jira.atlassian.net/browse/OVIRT-2498?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=38031#comment-38031 ] Barak Korren commented on OVIRT-2498: ------------------------------------- [~pkotas] I think the best place to discuss Kubevirt issues is on the Kubevirt-related mailing lists where other Kubvirt developers can see the discussion. To your questions: {quote} I am working on fixing the issues on the KubeVirt e2e test suites. This task is directly related to unstable CI, due to unknown errors. The progress is reported in the CNV trello: https://trello.com/c/HNXcMEQu/161-epic-improve-ci I am creating this issue since the KubeVirt experience random timeouts on random tests most of the times when test suites run. The issue from outside is showing as timeouts on difference part of tests. Sometimes the tests fails in set up phase, again due to random timeout. The example in the link bellow timed out for network connection on localhost. [check-patch.k8s-1.11.0-dev.el7.x86_64] requests.exceptions.ReadTimeout: UnixHTTPConnectionPool(host='localhost', port=None): Read timed out. (read timeout=60) {quote} Its generally a bad idea to rely to much on timeout in a test suit like this. We've seen such issues over and over again in OST as well. Its probably best to remove all such timeout definitions and just have overall timeout set for the entire test suit. {quote} Example of failing test suites is here https://jenkins.ovirt.org/job/kubevirt_kubevirt_standard-check-pr/1916/conso... The list of errors related to the failing CI can be found in my notes https://docs.google.com/document/d/1_ll1DOMHgCRHn_Df9i4uvtRFyMK-bDCHEeGfJFTj... I am not sure whether KubeVirt already shared the resource requirements, so I provide short summary: Resources for KubeVirt e2e tests: at least 12GB of RAM - we start 3 nodes (3 docker images) each require 4GB of RAM exposed /dev/kvm to enable native virtualization cached images, since these are used to build the test cluster: kubevirtci/os-3.10.0-crio:latest kubevirtci/os-3.10.0-multus:latest kubevirtci/os-3.10.0:latest kubevirtci/k8s-1.10.4:latest kubevirtci/k8s-multus-1.11.1:latest kubevirtci/k8s-1.11.0:latest How can we overcome this? Can we work together to build a suitable requirements for running the tests so it passes each time? {quote} To my knowledge the existing setup meets all the requirements you specify above. We have 3 physical hosts that are used to run Kubevirt tests, each host has 128GB of ram and runs 7 containers where each container runs its own Libvirt, Docker and Systemd so that it looks like its own host to the tests running inside. The amount of containers per host was calculated to have each container have a little over 16GB of RAM for itself. So we should have more then enough for Kubevirt. Also, in our measurements Kubevirt's CI tests took way less then 12GB, ansd were somewhere around 8GB. All the images that start with 'kubevirtci' are cached by the system. WRT /dev/kvm - we do have it exposed in the containers we run, but I think that is irrelevant since AFAIK Kubevirt-CI runs qemu on its own inside its own container, so the /dev/kvm device files simply needs to exist inside that container.

Failing KubeVirt CI -------------------

Key: OVIRT-2498 URL: https://ovirt-jira.atlassian.net/browse/OVIRT-2498 Project: oVirt - virtualization made easy Issue Type: By-EMAIL Reporter: Petr Kotas Assignee: infra

Hi, I am working on fixing the issues on the KubeVirt e2e test suites. This task is directly related to unstable CI, due to unknown errors. The progress is reported in the CNV trello: https://trello.com/c/HNXcMEQu/161-epic-improve-ci I am creating this issue since the KubeVirt experience random timeouts on random tests most of the times when test suites run. The issue from outside is showing as timeouts on difference part of tests. Sometimes the tests fails in set up phase, again due to random timeout. The example in the link bellow timed out for network connection on localhost. [check-patch.k8s-1.11.0-dev.el7.x86_64] requests.exceptions.ReadTimeout: UnixHTTPConnectionPool(host='localhost', port=None): Read timed out. (read timeout=60) Example of failing test suites is here https://jenkins.ovirt.org/job/kubevirt_kubevirt_standard-check-pr/1916/conso... The list of errors related to the failing CI can be found in my notes https://docs.google.com/document/d/1_ll1DOMHgCRHn_Df9i4uvtRFyMK-bDCHEeGfJFTj... I am not sure whether KubeVirt already shared the resource requirements, so I provide short summary: *Resources for KubeVirt e2e tests:* - at least 12GB of RAM - we start 3 nodes (3 docker images) each require 4GB of RAM - exposed /dev/kvm to enable native virtualization - cached images, since these are used to build the test cluster: - kubevirtci/os-3.10.0-crio:latest - kubevirtci/os-3.10.0-multus:latest - kubevirtci/os-3.10.0:latest - kubevirtci/k8s-1.10.4:latest - kubevirtci/k8s-multus-1.11.1:latest - kubevirtci/k8s-1.11.0:latest How can we overcome this? Can we work together to build a suitable requirements for running the tests so it passes each time? Kind regards, Petr Kotas

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