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https://issues.apache.org/jira/browse/YUNIKORN-2220?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wilfred Spiegelenburg closed YUNIKORN-2220.
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> pod.DeepCopy() is called twice in Task
> --------------------------------------
>
> Key: YUNIKORN-2220
> URL: https://issues.apache.org/jira/browse/YUNIKORN-2220
> Project: Apache YuniKorn
> Issue Type: Sub-task
> Components: shim - kubernetes
> Reporter: Peter Bacsko
> Assignee: Peter Bacsko
> Priority: Minor
>
> A small improvement is possible in {{task.go}}.
> In {{handleSubmitTaskEvent()}} and {{{}postTaskAllocated(){}}}, we call
> {{pod.DeepCopy()}} twice to avoid possible race conditions, but a single copy
> is enough. Once we have a copy, it's local to the method.
> {noformat}
> events.GetRecorder().Eventf(task.pod.DeepCopy(), nil, v1.EventTypeNormal,
> "Scheduling", "Scheduling",
> "%s is queued and waiting for allocation", task.alias)
> // if this task belongs to a task group, that means the app has gang
> scheduling enabled
> // in this case, post an event to indicate the task is being gang
> scheduled
> if !task.placeholder && task.taskGroupName != "" {
> events.GetRecorder().Eventf(task.pod.DeepCopy(), nil,
> v1.EventTypeNormal, "GangScheduling", "GangScheduling",
> "Pod belongs to the taskGroup %s, it will be scheduled
> as a gang member", task.taskGroupName) <-- second copy if GS is used
> }
> {noformat}
> {noformat}
> events.GetRecorder().Eventf(task.pod.DeepCopy(),
> nil, v1.EventTypeNormal, "Scheduled", "Scheduled",
> "Successfully assigned %s to node %s", task.alias, task.nodeName)
> ...
> events.GetRecorder().Eventf(task.pod.DeepCopy(), nil,
> v1.EventTypeNormal, "PodBindSuccessful", "PodBindSuccessful",
> "Pod %s is successfully bound to node %s", task.alias, task.nodeName)
> {noformat}
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