Don’t see anything out of the ordinary.

You don’t have a postgresql.auto.conf file or is it empty?  The custom settings 
might be in that one.  The auto is set when you use

 

ALTER SYSTEM

 

and that would generally be copied over from your old instance.

 

 

Also are all your databases on PG12 and full as I would expect, since I think 
the failure happened after all the data was copied over already.

The fact vacuum(full, analyze)  didn’t fail is good and perhaps suggests 
nothing to worry about.

 

Whatever killed vacuumdb sounds like another process that was running at the 
same time.  The fact it happened even on the other server you are testing might 
be just something you consistently install.  I would try the vacuum on each of 
your databases to see if any cause a crash.

 

 

 

 

From: postgis-users [mailto:postgis-users-boun...@lists.osgeo.org] On Behalf Of 
pham lan
Sent: Saturday, March 18, 2023 3:37 AM
To: PostGIS Users Discussion <postgis-users@lists.osgeo.org>
Subject: Re: [postgis-users] Help to upgrade postgresql10 with postgis 2.5

 

Hi Regina,

The postgresql.conf and pg_hba.conf for postgres12 are the default one. I just 
changed the port to 5433 and all authentication to trust. Nothing special.

Please find in attachments those files.

Please find the output:
postgres@host:~> psql -p 5433 -d template1 -c "SELECT * FROM pg_extension;"
  oid  | extname | extowner | extnamespace | extrelocatable | extversion | 
extconfig | extcondition
-------+---------+----------+--------------+----------------+------------+-----------+--------------
 14385 | plpgsql |       10 |           11 | f              | 1.0        |      
     |
(1 row)

0 postgres@host:~> free -h
              total        used        free      shared  buff/cache   available
Mem:           15Gi       610Mi       3.5Gi        13Mi        11Gi        14Gi

Swap:         2.0Gi        95Mi       1.9Gi

 

Let me know if you see something wrong.

Thanks,

Lan

 

On Sat, Mar 18, 2023 at 7:04 AM Regina Obe <l...@pcorp.us 
<mailto:l...@pcorp.us> > wrote:

I’ve never seen that error before.

It might be some OOM killer getting in the way as it’s failing on vacuuming of 
pg_catalog.pg_proc in template1, which is a really strange place to be failing 
since the template database have pretty much nothing, unless you installed some 
extension in them.

 

What does output – is it low?

free –h

 

It might be something in your postgresql.conf or postgresql.auto.conf like your 
maintenance_work_mem is set too high for your server.

 

Since you are doing non-link mode pg_upgrade, you should have 2 instances off 
pg now.  I think if it got to the point of vacuumdb it’s already loaded all the 
data in the PG12 instance and you can check if everything is there.

 

 

Can you connect to your PostgreSQL 12, you might have to manually start it up

 

And then see if you can run below without it crashing.  That is essentially 
what vacuumdb does:

 

psql -p 5433 -d template1 -c "vacuum (analyze,verbose);"

 

 

Also check what extensions you have installed in template1. 

 

psql -p 5433 -d template1 -c "SELECT * FROM pg_extension;"

 

For template1, there is usually only one extension plpgsql.

If you have more, you might want to drop the others to rule out it’s some 
extension getting in the way.

 

 

 

From: postgis-users [mailto:postgis-users-boun...@lists.osgeo.org 
<mailto:postgis-users-boun...@lists.osgeo.org> ] On Behalf Of pham lan
Sent: Saturday, March 18, 2023 1:21 AM
To: PostGIS Users Discussion <postgis-users@lists.osgeo.org 
<mailto:postgis-users@lists.osgeo.org> >
Subject: Re: [postgis-users] Help to upgrade postgresql10 with postgis 2.5

 

Hi Regina,

So I tried to pg_upgrade at least from postgresql 10 (postgis 2.5) to 
postgresql 12 (postgis 2.5) and get the following error. Do you have any idea 
why? (I tried this several times, I even pg_basebackup to another server with 
postgresql 10 and pg_upgrade to postgres12 but got the same error)

> /usr/pgsql-12/bin/pg_upgrade -b /usr/pgsql-10/bin/ -B /usr/pgsql-12/bin/ -d 
> /var/lib/pgsql/10/data/ -D /var/lib/pgsql/12/data/ -p 5432 -P 5433
Performing Consistency Checks
-----------------------------
Checking cluster versions                                   ok
Checking database user is the install user                  ok
Checking database connection settings                       ok
Checking for prepared transactions                          ok
Checking for system-defined composite types in user tables  ok
Checking for reg* data types in user tables                 ok
Checking for contrib/isn with bigint-passing mismatch       ok
Checking for tables WITH OIDS                               ok
Checking for invalid "sql_identifier" user columns          ok
Creating dump of global objects                             ok
Creating dump of database schemas
                                                            ok
Checking for presence of required libraries                 ok
Checking database user is the install user                  ok
Checking for prepared transactions                          ok
Checking for new cluster tablespace directories             ok

If pg_upgrade fails after this point, you must re-initdb the
new cluster before continuing.

Performing Upgrade
------------------
Analyzing all rows in the new cluster
*failure*

Consult the last few lines of "pg_upgrade_utility.log" for
the probable cause of the failure.
Failure, exiting
1 postgres@host:~> cat pg_upgrade_utility.log

-----------------------------------------------------------------
  pg_upgrade run on Sat Mar 18 06:16:00 2023
-----------------------------------------------------------------

command: "/usr/pgsql-12/bin/pg_dumpall" --host /var/lib/pgsql --port 5432 
--username postgres --globals-only --quote-all-identifiers --binary-upgrade  -f 
pg_upgrade_dump_globals.sql >> "pg_upgrade_utility.log" 2>&1


command: "/usr/pgsql-12/bin/vacuumdb" --host /var/lib/pgsql --port 5433 
--username postgres --all --analyze  >> "pg_upgrade_utility.log" 2>&1
vacuumdb: vacuuming database "postgres"
vacuumdb: vacuuming database "template1"
WARNING:  terminating connection because of crash of another server process
DETAIL:  The postmaster has commanded this server process to roll back the 
current transaction and exit, because another server process exited abnormally 
and possibly corrupted shared memory.
HINT:  In a moment you should be able to reconnect to the database and repeat 
your command.
vacuumdb: error: vacuuming of table "pg_catalog.pg_proc" in database 
"template1" failed: server closed the connection unexpectedly
        This probably means the server terminated abnormally

        before or while processing the request.

 

Thanks,

Lan

 

On Fri, Mar 17, 2023 at 10:27 AM pham lan <phamla...@gmail.com 
<mailto:phamla...@gmail.com> > wrote:

Yes, actually I followed your instructions.

After drop extension postgis_sfcgal whichs required me to drop cascade 13 
materialized views, the upgrade to postgres15 went well. 

Afterward, I wanted to update the postgis extension:

ALTER EXTENSION postgis UPDATE;

 it requests me to drop cascade around 200 materialized views. For the test DB, 
I did that, the update to postgis 3.3 went well but afterward, the vacuum step 
failed.

In the end, I talked to the teams and they can not afford to have those 
materialized views deleted and then being created again by them.

That's why I wanna ask if there is a simple way of migrating the materialized 
views? I am not familiar with this.

Thanks,

Lan

 

On Fri, Mar 17, 2023 at 9:26 AM Regina Obe <l...@pcorp.us 
<mailto:l...@pcorp.us> > wrote:

You’d probably want to upgrade PostgreSQL too since PostgreSQL 10 is EOL’d.

 

Below are some instructions I had written for Centos.  Should be more or less 
the same for Redhat.

 

https://www.bostongis.com/blog/index.php?/archives/278-Using-pg_upgrade-to-upgrade-PostgreSQL-9.6-PostGIS-2.4-to-PostgreSQL-15-3.3-on-Yum.html

 

 

 

From: postgis-users [mailto:postgis-users-boun...@lists.osgeo.org 
<mailto:postgis-users-boun...@lists.osgeo.org> ] On Behalf Of pham lan
Sent: Friday, March 17, 2023 3:56 AM
To: PostGIS Users Discussion <postgis-users@lists.osgeo.org 
<mailto:postgis-users@lists.osgeo.org> >
Subject: Re: [postgis-users] Help to upgrade postgresql10 with postgis 2.5

 

Hi Regina,

 

Thank you for your reply. Below is the output of the command. Do you know a 
good way to migrate all the definitions of materialized views because we have a 
lot of them and they are quite complex?

# SELECT postgis_full_version(), version();
                                                                                
                      postgis_full_version
                       |                                                 version
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-----------------------+----------------------------------------------------------------------------------------------------------
 POSTGIS="2.5.5" [EXTENSION] PGSQL="100" GEOS="3.9.2-CAPI-1.14.3" 
SFCGAL="1.4.1" PROJ="Rel. 7.2.1, January 1st, 2021" GDAL="GDAL 3.2.3, released 
2021/04/27" LIBXML="2.9.7" LIBJSON="0.13.1" LIBPROTOBUF="
1.3.0" TOPOLOGY RASTER | PostgreSQL 10.23 on x86_64-pc-linux-gnu, compiled by 
gcc (GCC) 8.5.0 20210514 (Red Hat 8.5.0-15), 64-bit

Thanks,

Lan

 

 

On Thu, Mar 16, 2023 at 2:15 PM Regina Obe <l...@pcorp.us 
<mailto:l...@pcorp.us> > wrote:

It depends on what platform you are on.

 

Can you output the following from your postgis enabled databases:

 

SELECT postgis_full_version(), version();

 

And send us the output of what each says.  That will give a clue of at least 
what platform you are running.

 

You’ll need to run this on each database you have with postgis installed on, as 
it is possible to have 2 versions of postgis installed in separate databases.

 

As to whether you’d need to drop and recreate any materialized views, it would 
depend on what functions they are using.  If they are using deprecated or 
removed functions, then eventually you will need to drop and recreate, but you 
could do that at a later time.  The PostGIS 3+ upgrade will notify you of those 
issues, but generally can just rename the functions in use, so you can drop and 
recreate at a more convenient time.

 

For materialized views that take a long time to build, I generally build them 
under a new name, and do a swap after the new one has been built.  That would 
reduce the downtime from hours to 1-2 minutes.

 

Thanks,

Regina

 

From: postgis-users [mailto:postgis-users-boun...@lists.osgeo.org 
<mailto:postgis-users-boun...@lists.osgeo.org> ] On Behalf Of pham lan
Sent: Wednesday, March 15, 2023 5:00 PM
To: PostGIS Users Discussion <postgis-users@lists.osgeo.org 
<mailto:postgis-users@lists.osgeo.org> >
Subject: [postgis-users] Help to upgrade postgresql10 with postgis 2.5

 

Hello,

 

I have very less experience with postgres and postgis. However i receive a task 
to upgrade an old database which has postgresql10 with postgis 2.5. The 
database has some extensions: postgis, postgis_sfcgal, postgis_topology, raster 
and have a lot of materialized views which depends on functions on postgis and 
sfcgal libraries. Could someone please instruct me to upgrade my postgres DB to 
a newer postgres and postgis version without having to drop all those 
materialized views? Idealy to postgis 3.x?

 

Thanks in advance.

 

Best regards

Lan Pham

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