Paul Rogers created DRILL-5511:
----------------------------------
Summary: Additional UserException categories for internal errors
Key: DRILL-5511
URL: https://issues.apache.org/jira/browse/DRILL-5511
Project: Apache Drill
Issue Type: Improvement
Affects Versions: 1.11.0
Reporter: Paul Rogers
Assignee: Paul Rogers
Priority: Minor
Fix For: 1.11.0
The {{UserException}} class in Drill is the way that Drill passes error
conditions from the server to the client. {{UserException}} groups errors into
a number of categories as defined in [the protobuf
definitions|https://github.com/apache/drill/blob/master/protocol/src/main/protobuf/UserBitShared.proto].
As we enhance error handling in operators, it becomes clear that some errors do
not fit into the existing categories. In particular:
* Execution errors: problems related to run-time issues where the cause is not
known, or the error does not fit into an existing category. This might occur,
say, if a temporary file fills, a spill file is deleted or other odd-ball cases.
* Internal error: error that indicates failure of Drill code, invariants or the
like. Internal errors are generally not something wrong with the user's data,
query or environment, but rather something wrong with Drill itself. For
example, all {{IllegalStateException}}, {{AssertionError}} or
{{IllegalArgumentException}} errors would map to an internal error.
* Unspecified error: for cases where Drill code caches an exception from a
deeper layer, but we don't know enough about the exception to render a useful
categorization. Most often used in cases of plugins that don't do adequate
error handing themselves.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
