[jira] [Created] (KUDU-1608) Catalog Manager DeleteTablet retry logic is broken

["Dan Burkert (JIRA)" <ji...@apache.org>]

Dan Burkert created KUDU-1608:
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             Summary: Catalog Manager DeleteTablet retry logic is broken
                 Key: KUDU-1608
                 URL: https://issues.apache.org/jira/browse/KUDU-1608
             Project: Kudu
          Issue Type: Bug
          Components: master
            Reporter: Dan Burkert


There are a couple of issues with the Catalog Manager's retry logic for DeleteTablet requests:

1. The retries loop indefinitely
2. The RPC response is checked against a whitelist of fatal errors, instead of a list of retriable errors.  Additionally, we are missing many fatal errors on this list such as WRONG_SERVER_UUID and UNKNOWN_ERROR.  I think we should instead only retry on errors which we know we can recover from.
3. The catalog manager aggressively sends out DeleteTablet requests to tablet servers when tablets are ejected from the group.  Arguably this should only be done lazily when the dead tablets report in, since most of the time the tablet will be ejected due to failure (and will never be seen again).



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