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util/cephcmds: have GetOMapValue() return ErrPoolNotFound

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On occasion the e2e tests fail as there is an unexpected error while
deleting an RBD image. The particular tests forcefully removes the pool
where the RBD image is stored. Deleting a volume that has been removed
already (or when its parent pool has been wiped), should succeed.

By catching the error that a pool does not exist (anymore), the
provisioner responds to the DeleteVolume request with succes.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
This commit is contained in:
Niels de Vos 2020-03-19 13:30:59 +01:00 committed by mergify[bot]
parent 02367c4a3f
commit 19cc28ddea
2 changed files with 14 additions and 4 deletions
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5
pkg/util/cephcmds.go
View File

@ -182,6 +182,11 @@ func GetOMapValue(ctx context.Context, monitors string, cr *Credentials, poolNam
return "", ErrKeyNotFound{poolName + "/" + oMapName + "/" + oMapKey, err}
}
if strings.Contains(stdoutanderr, "error opening pool "+
poolName+": (2) No such file or directory") {
return "", ErrPoolNotFound{poolName, err}
}
// log other errors for troubleshooting assistance
klog.Errorf(Log(ctx, "failed getting omap value for key (%s) from omap (%s) in pool (%s): (%v)"),
oMapKey, oMapName, poolName, err)

13
pkg/util/voljournal.go
View File

@ -215,7 +215,8 @@ func (cj *CSIJournal) CheckReservation(ctx context.Context, monitors string, cr
if err != nil {
// error should specifically be not found, for volume to be absent, any other error
// is not conclusive, and we should not proceed
if _, ok := err.(ErrKeyNotFound); ok {
switch err.(type) {
case ErrKeyNotFound, ErrPoolNotFound:
return "", nil
}
return "", err
@ -453,8 +454,10 @@ func (cj *CSIJournal) GetObjectUUIDData(ctx context.Context, monitors string, cr
if err != nil {
// if the key was not found, assume the default key + UUID
// otherwise return error
if _, ok := err.(ErrKeyNotFound); !ok {
switch err.(type) {
default:
return "", "", "", "", err
case ErrKeyNotFound, ErrPoolNotFound:
}
if snapSource {
@ -468,11 +471,13 @@ func (cj *CSIJournal) GetObjectUUIDData(ctx context.Context, monitors string, cr
encryptionKmsConfig, err = GetOMapValue(ctx, monitors, cr, pool, cj.namespace,
cj.cephUUIDDirectoryPrefix+objectUUID, cj.encryptKMSKey)
if err != nil {
if _, ok := err.(ErrKeyNotFound); !ok {
// ErrKeyNotFound means no encryption KMS was used
switch err.(type) {
default:
return "", "", "", "", fmt.Errorf("OMapVal for %s/%s failed to get encryption KMS value: %s",
pool, cj.cephUUIDDirectoryPrefix+objectUUID, err)
case ErrKeyNotFound, ErrPoolNotFound:
}
// ErrKeyNotFound means no encryption KMS was used
}
if snapSource {