Ronald Zhang created YUNIKORN-1165:
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Summary: Yunikorn plugin inconsistent node assignment + scheduling
Key: YUNIKORN-1165
URL: https://issues.apache.org/jira/browse/YUNIKORN-1165
Project: Apache YuniKorn
Issue Type: Bug
Reporter: Ronald Zhang
Assignee: Craig Condit
Although the plugin selects a certain node, the default scheduler may not
schedule the pod on the plugin-selected node. In the below example, Yunikorn
selected node host-05.shared-ek8s-dev-01.kcloud.cloudera.com. However, the pod
was scheduled on host-01.shared-ek8s-dev-01.kcloud.cloudera.com.
Internally, Yunikorn still incorrectly believes that the node was scheduled on
host-05.shared-ek8s-dev-01.kcloud.cloudera.com.
{code:java}
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Warning FailedScheduling 19s yunikorn 0/10 nodes are available: 10 Pod
is not ready for scheduling.
Warning FailedScheduling 19s yunikorn 0/10 nodes are available: 10 Pod
is not ready for scheduling.
Normal Scheduling 16s yunikorn dev/test-pod-1 is queued and
waiting for allocation
Normal QuotaApproved 16s yunikorn Pod dev/test-pod-1 is ready for
scheduling on node host-05.shared-ek8s-dev-01.kcloud.cloudera.com
Normal Scheduled 16s yunikorn Successfully assigned
dev/test-pod-1 to host-01.shared-ek8s-dev-01.kcloud.cloudera.com
Normal Pulled 15s kubelet Container image
"docker-private.infra.cloudera.com/cloudera_base/alpine:latest" already present
on machine
Normal Created 15s kubelet Created container sleep-600s-1
Normal Started 15s kubelet Started container sleep-600s-1
{code}
{code:java}
{ "applicationID": "app-v1", "usedResource": "[memory:50
vcore:50]", "partition": "default", "queueName": "root.dev",
"submissionTime": 1648676490424350638, "allocations": [
{ "allocationKey":
"d50084ea-2ae1-4057-8a9b-48cda1fad4c7", "allocationTags":
{ "kubernetes.io/label/app": "sleep",
"kubernetes.io/label/applicationId": "app-v1",
"kubernetes.io/label/component": "yunikorn-scheduler",
"kubernetes.io/label/queue": "root.default",
"kubernetes.io/meta/namespace": "dev",
"kubernetes.io/meta/podName": "test-pod-1" },
"uuid": "f7e4b5d6-1e71-4d5b-bd1d-aa28067a3d4b", "resource":
"[memory:50 vcore:50]", "priority": "0",
"queueName": "root.dev", "nodeId":
"host-05.shared-ek8s-dev-01.kcloud.cloudera.com",
"applicationId": "app-v1", "partition": "default" }
], "applicationState": "Starting" },
{code}
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