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job: Ignore namespace termination errors when creating pods or jobs

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Instead of reporting an event or displaying an error, simply exit
when the namespace is being terminated. This reduces the amount of
controller churn on namespace shutdown. While we could technically
exit the entire processing loop early for very large jobs,
we should wait for more evidence that is an issue before changing
that logic substantially.
This commit is contained in:
Clayton Coleman
2019-10-20 16:25:44 -04:00
parent 8f74c8970b
commit c6e34e58c5
3 changed files with 23 additions and 10 deletions
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1
pkg/controller/cronjob/BUILD
View File

@@ -20,6 +20,7 @@ go_library(
"//staging/src/k8s.io/api/batch/v1:go_default_library",
"//staging/src/k8s.io/api/batch/v1beta1:go_default_library",
"//staging/src/k8s.io/api/core/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/api/errors:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/labels:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/runtime:go_default_library",

7
pkg/controller/cronjob/cronjob_controller.go
View File

@@ -39,6 +39,7 @@ import (
batchv1 "k8s.io/api/batch/v1"
batchv1beta1 "k8s.io/api/batch/v1beta1"
"k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/types"
@@ -333,7 +334,11 @@ func syncOne(sj *batchv1beta1.CronJob, js []batchv1.Job, now time.Time, jc jobCo
}
jobResp, err := jc.CreateJob(sj.Namespace, jobReq)
if err != nil {
recorder.Eventf(sj, v1.EventTypeWarning, "FailedCreate", "Error creating job: %v", err)
// If the namespace is being torn down, we can safely ignore
// this error since all subsequent creations will fail.
if !errors.HasStatusCause(err, v1.NamespaceTerminatingCause) {
recorder.Eventf(sj, v1.EventTypeWarning, "FailedCreate", "Error creating job: %v", err)
}
return
}
klog.V(4).Infof("Created Job %s for %s", jobResp.Name, nameForLog)