I would say Cloudera support if you have that for your cluster. They can then vet it against existing bug and patches backported to your version. They can also tell you if a bug exist, when it will be available and which version. And failing all of that they can open a new JIRA. You can open a JIRA account and create a ticket yourself, providing the CDH version and ask the community how to proceed. They should have some guidelines as well although I do not know them or have them handy. ... View more