Details
Major Description
While writing some tests against 1.x, I noticed that what should have been a DoNotRetryIOException sent to the client from a RegionServer was getting retried until it reached the hbase client retries limit.
Upon inspection, I found that the SecureBulkLoadClient was wrapping all Exceptions from the RPC as an IOException. I believe this is creating a case where the RPC system doesn't notice that there's a DNRIOException wrapped beneath it, thinking it's a transient error.
This results in clients having to wait for the retry limit to be reached before they get acknowledgement that something failed.