Lars Volker created IMPALA-6756:
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Summary: Order children of profiles in a canonical way
Key: IMPALA-6756
URL: https://issues.apache.org/jira/browse/IMPALA-6756
Project: IMPALA
Issue Type: Improvement
Components: Backend
Affects Versions: Impala 2.12.0
Reporter: Lars Volker
IMPALA-6694 addressed an issue where variations in the execution order across
multiple backends changed the order of a fragment instance's profile children.
Instead of relying on the order in which children are created on the worker
nodes and reported to the coordinator, we should introduce a canonical order,
e.g. have the non-exec-node children appear before the exec-nodes, and order
them alphabetically. [This discussion in the
review|https://gerrit.cloudera.org/#/c/9749/3/be/src/util/runtime-profile.cc@358]
has some more details.
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