[Postgres-xl-developers] Possible regression with recent GTM patches in XL9_5_STABLE

Krzysztof Nienartowicz krzysztof.nienartowicz at unige.ch
Sat Oct 21 13:09:35 PDT 2017


Hello Tomas,

We have experienced failed processing due to shared queue problems and
segfaults under load with the latest two patches from 95 branch on
queries that had run before without problems.

* Allocate thread-local snapshot array statically
* Remember queryId for queries executed using FQS

We did not have time to analyze in detail but reverting patches fixes
the problem (no idea which one could be a culprit..).
Cores are available just in case.

Cheers
Krzysztof


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