Description of problem: We have a periodic CI job that executes `oc adm prune images` daily: https://deck-ci.apps.ci.l2s4.p1.openshiftapps.com/?job=periodic-ci-image-pruner It frequently fails with: error updating image stream $x…: the object has been modified; please apply your changes to the latest version and try again How reproducible: Almost every execution fails with that error, likely due to the volume of IS operations in the CI cluster: https://deck-ci.apps.ci.l2s4.p1.openshiftapps.com/job-history/gs/origin-ci-test/logs/periodic-ci-image-pruner
Setting the version to 4.5 as the job uses `quay.io/openshift/origin-cli:4.5`.
That's not the reason why this job fails, there are retries in the pruner. The real reason is OOM killer: https://deck-ci.apps.ci.l2s4.p1.openshiftapps.com/view/gs/origin-ci-test/logs/periodic-ci-image-pruner/1275217546462629888 state: terminated: containerID: docker://2ded865fc54bac1e7435aeb2c98122028fefae87c37c883a78a0ae91df252022 exitCode: 255 finishedAt: "2020-06-23T00:11:04Z" ... reason: OOMKilled Can you increase memory limits?