From: Jerry Sievers <gsievers19@comcast.net>
To: ram pratap maurya <rampratap0000@gmail.com>
Cc: pgsql-admin@lists.postgresql.org
Subject: Re: old and new pg_controldata WAL segment sizes are invalid or do
 not match
References: 
 <CAAiDzSeEEfhxjfT-v+DDySHnfB7N9y_QezQizuRV8RKQ0LDGSg@mail.gmail.com>
Date: Wed, 17 Jun 2020 16:36:31 -0500
In-Reply-To: 
 <CAAiDzSeEEfhxjfT-v+DDySHnfB7N9y_QezQizuRV8RKQ0LDGSg@mail.gmail.com>
	(ram pratap maurya's message of "Thu, 18 Jun 2020 02:35:17 +0530")
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ram pratap maurya <rampratap0000@gmail.com> writes:

> Hello taem,
>
> i am faction=C2=A0issue during upgrade postgres11 to 12. can you please
> suggest how to resolve this issue.
>
> .........................................................................=
.................................................
> bash-4.1$ /usr/pgsql-12/bin/pg_upgrade --old-datadir /var/lib/pgsql/
> 11/data/ --new-datadir /var/lib/pgsql/12/data/ --old-bindir /usr/
> pgsql-11/bin/ --new-bindir /usr/pgsql-12/bin/ --check
> Performing Consistency Checks
> -----------------------------
> Checking cluster versions =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 ok
>
> old and new pg_controldata WAL segment sizes are invalid or do not
> match
> Failure, exiting

Did you initdb the v12 cluster with a non-default WAL size?

Suggest you run pg_controldata for both old/new clusters and see what it
says, which the pg_upgrade error message is telling you to do.

HTH

>
>
> regards,
> ram Pratap
>
>

--=20
Jerry Sievers
Postgres DBA/Development Consulting
e: postgres.consulting@comcast.net