WF pending logs verbosity

[vishal-biyani]

After an error in the workflow definition, the workflow pod constantly logs the error Workflow is not ready yet. - and the actual error gets burried somewhere. This is just from user experience point of view - but something that can be improved on. At the very least - the frequency of logging same error should be reduced in a retry/backoff kind of mechanism.

 workflow time="2018-08-20T11:44:15Z" level=info msg="Resolving function: http" component=fnenv.fission
 workflow time="2018-08-20T11:44:15Z" level=info msg="Resolving function: whalesay" component=fnenv.fission
 workflow time="2018-08-20T11:44:15Z" level=info msg="Event added: INVOCATION_CREATED" aggregate=invocation/wi-feef01bd-8d75-4472-9819-0d7b562c5fcf nats.subject=invocation.wi-feef01bd-8d75-4472-9819-0d7b562c5fcf parent=/
 workflow time="2018-08-20T11:44:15Z" level=error msg="Workflow is not ready yet." wf.status=PENDING
 workflow time="2018-08-20T11:44:15Z" level=error msg="Action '*workflow.ActionParseWorkflow' failed: failed to resolve tasks in workflow: failed to resolve function 'whalesay' using clients 'map[internal:0xc42000c610 fission:0xc42000c628]': Resource not found - NotFound" component=controller.workflow
 workflow time="2018-08-20T11:44:15Z" level=error msg="Workflow is not ready yet." wf.status=PENDING
 workflow time="2018-08-20T11:44:15Z" level=error msg="Workflow is not ready yet." wf.status=PENDING
 workflow time="2018-08-20T11:44:16Z" level=error msg="Workflow is not ready yet." wf.status=PENDING
 workflow time="2018-08-20T11:44:16Z" level=error msg="Workflow is not ready yet." wf.status=PENDING
 workflow time="2018-08-20T11:44:16Z" level=error msg="Workflow is not ready yet." wf.status=PENDING
 workflow time="2018-08-20T11:44:16Z" level=error msg="Workflow is not ready yet." wf.status=PENDING
 workflow time="2018-08-20T11:44:16Z" level=error msg="Workflow is not ready yet." wf.status=PENDING