The index management job status is always `Completed` even when there has an error in the job log.

$ oc get pod
NAME                                            READY   STATUS      RESTARTS   AGE
cluster-logging-operator-7b96786d97-72kjl       1/1     Running     0          24m
elasticsearch-cdm-zi2vxyc8-1-785cb8d59-8rjql    2/2     Running     0          22m
elasticsearch-cdm-zi2vxyc8-2-7dbf55b468-26z2r   2/2     Running     0          22m
elasticsearch-cdm-zi2vxyc8-3-7475c78549-67qdp   2/2     Running     0          22m
elasticsearch-im-app-26980020-k2wxc             0/1     Completed   0          98s
elasticsearch-im-audit-26980020-sjlsz           0/1     Completed   0          98s
elasticsearch-im-infra-26980020-xgl2w           0/1     Completed   0          98s
$ oc logs elasticsearch-im-infra-26980020-xgl2w
Index management delete process startingNo indices to delete
Index management rollover process starting
Current write index for infra-write: infra-000001
Checking results from _rollover call
Calculating next write index based on current write index...
Next write index for infra-write: infra-000002
Checking if infra-000002 exists
{
  "error" : {
    "root_cause" : [
      {
        "type" : "cluster_block_exception",
        "reason" : "blocked by: [FORBIDDEN/12/index read-only / allow delete (api)];"
      }
    ],
    "type" : "cluster_block_exception",
    "reason" : "blocked by: [FORBIDDEN/12/index read-only / allow delete (api)];"
  },
  "status" : 403
}