Re: v13: CLUSTER segv with wal_level=minimal and parallel index creation - Mailing list pgsql-hackers

From Kyotaro Horiguchi
Subject Re: v13: CLUSTER segv with wal_level=minimal and parallel index creation
Date
Msg-id 20200907.134528.1788420979518620237.horikyota.ntt@gmail.com
Whole thread Raw
In response to Re: v13: CLUSTER segv with wal_level=minimal and parallel index creation  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: v13: CLUSTER segv with wal_level=minimal and parallel index creation
List pgsql-hackers
At Mon, 07 Sep 2020 00:33:03 -0400, Tom Lane <tgl@sss.pgh.pa.us> wrote in 
> Justin Pryzby <pryzby@telsasoft.com> writes:
> > This is easily reproduced, at least on pg_attribute

Thanks for the repro.

> Yeah, duplicated here.  The assertion (not SIGSEGV) is in code
> added by c6b92041d, so it seems clearly an open issue for v13.
> 
> I did not check to see what happens in a non-assert build.

The cause is that the worker had received pending-sync entry correctly
but not never created a relcache entry for the relation using
RelationBuildDesc. So the rd_firstRelfilenodeSubid is not correctly
set.

I'm investigating it.

regards.

-- 
Kyotaro Horiguchi
NTT Open Source Software Center



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