ceph-csi/e2e/errors.go
Niels de Vos 5c016b4b94 e2e: retry on "connect: connection refused" errors
Sometimes there are failures in the e2e suite when connecting to the
etcdserver fails. The following error was caught:

    INFO: Error getting pvc "rbd-pvc" in namespace "rbd-1318": Get "https://192.168.39.222:8443/api/v1/namespaces/rbd-1318/persistentvolumeclaims/rbd-pvc": dial tcp 192.168.39.222:8443: connect: connection refused
    FAIL: failed to create PVC with error failed to get pvc: Get "https://192.168.39.222:8443/api/v1/namespaces/rbd-1318/persistentvolumeclaims/rbd-pvc": dial tcp 192.168.39.222:8443: connect: connection refused

If etcdserver was only briefly unavailable, one or more retries might be
sufficient to have the test pass.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
2021-07-21 13:08:41 +00:00

46 lines
1.4 KiB
Go

/*
Copyright 2020 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package e2e
import (
"strings"
apierrors "k8s.io/apimachinery/pkg/api/errors"
utilnet "k8s.io/apimachinery/pkg/util/net"
)
func isRetryableAPIError(err error) bool {
// These errors may indicate a transient error that we can retry in tests.
if apierrors.IsInternalError(err) || apierrors.IsTimeout(err) || apierrors.IsServerTimeout(err) ||
apierrors.IsTooManyRequests(err) || utilnet.IsProbableEOF(err) || utilnet.IsConnectionReset(err) ||
utilnet.IsConnectionRefused(err) {
return true
}
// If the error sends the Retry-After header, we respect it as an explicit confirmation we should retry.
if _, shouldRetry := apierrors.SuggestsClientDelay(err); shouldRetry {
return true
}
// "etcdserver: request timed out" does not seem to match the timeout errors above
if strings.HasSuffix(err.Error(), "etcdserver: request timed out") {
return true
}
return false
}