[jira] [Created] (IMPALA-7133) Beeswax methods return Default TException instead of real exception

["Tim Armstrong (JIRA)" <ji...@apache.org>]

Tim Armstrong created IMPALA-7133:
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             Summary: Beeswax methods return Default TException instead of real exception
                 Key: IMPALA-7133
                 URL: https://issues.apache.org/jira/browse/IMPALA-7133
             Project: IMPALA
          Issue Type: Bug
    Affects Versions: Impala 2.13.0, Impala 3.1.0
            Reporter: Tim Armstrong


An instance of this bug is that we see a "Default TException" error instead of "Query Id ... Not Found" because of the following issue:
* get_results_metadata() does not declare that it throws BeeswaxException
* But our implementation actually throws that in the "Query Id ... Not Found" case
* The Thrift C++ server has some logic that calls .what() on unknown exceptions and wraps them into a TException
* On 3.x, we have THRIFT-727 in Thrift 0.9.3, which implements .what(), so the original error message is present albeit wrapped in some garbage. 
* On 2.x .what() does not return any useful information, so we just get a weird empty message



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