Ming LI created HAWQ-994:
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Summary: PL/R UDF need to be separated from postgres process for
robustness
Key: HAWQ-994
URL: https://issues.apache.org/jira/browse/HAWQ-994
Project: Apache HAWQ
Issue Type: New Feature
Reporter: Ming LI
Assignee: Lei Chang
Background:
In previous single node DB, user always deploy testing code on another testing
DB. Now the data maintained in HAWQ grows enormously, so it is hard to deploy a
testing hawq with the same test data.
So user need to run some testing UDF or deploy some UDFs which lack of testing
the whole data directly onto hawq in production env, which may crash in PL/R or
R code. Sometimes poorly written query leads to postmaster reset causing all
running jobs to be cancelled and rolled back. Customer often sees this as a
HAWQ issue even if it is a user code issue. So we need to separated from
postgres process, and change inter process communication from shared memory to
others(e.g. pipe, socket and so on).
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