Haisheng Yuan created HAWQ-763:
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Summary: Remove traceflag that allows ORCA to run in multiple
threads
Key: HAWQ-763
URL: https://issues.apache.org/jira/browse/HAWQ-763
Project: Apache HAWQ
Issue Type: Improvement
Reporter: Haisheng Yuan
Assignee: Lei Chang
We are integrating VEM with GPOS memory allocator. VMEM is not thread safe. So,
ORCA/GPOS also need to be single threaded. Currently, HAWQ users are using only
the single threaded Orca.
So need to remove the traceflag that allows ORCA to run in multiple threads so
that HAWQ users do not accidentally run ORCA in multiple threads.
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