Re: pg_dump crashes

/usr/lib/postgresql/11/bin/pg_upgrade
--old-datadir /data/postgresql/9.5/main/
--new-datadir /var/lib/postgresql/11/main/
-b /usr/lib/postgresql/9.5/bin
-B /usr/lib/postgresql/11/bin
-o ' -c config_file=/etc/postgresql/9.5/main/postgresql.conf'
-O ' -c config_file=/etc/postgresql/11/main/postgresql.conf'

On Fri, May 22, 2020 at 3:35 PM Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com>
wrote:

> On 5/22/20 5:37 AM, Nico De Ranter wrote:
> > Hi all,
> >
> > Postgres version: 9.5
> > OS: Ubuntu 18.04.4
> >
> > I have a 144GB Bacula database that crashes the postgres daemon when I
> > try to do a pg_dump.
> > At some point the server ran out of diskspace for the database storage.
> > I expanded the lvm and rebooted the server. It seemed to work fine,
> > however when I try to dump the bacula database the postgres daemon dies
> > after about 37GB.
> >
> > I tried copying the database to another machine and upgrading postgres
> > to 11 using pg_upgrade. The upgrade seems to work but I still get
> > exactly the same problem when trying to dump the database.
>
> What was the full command you used to do the pg_upgrade?
>
> >
> > postgres(at)core4:~$ pg_dumpall --cluster 11/main --file=dump.sql
> > pg_dump: Dumping the contents of table "file" failed: PQgetCopyData()
> > failed.
> > pg_dump: Error message from server: server closed the connection
> > unexpectedly
> > This probably means the server terminated abnormally
> > before or while processing the request.
> > pg_dump: The command was: COPY public.file (fileid, fileindex, jobid,
> > pathid, filenameid, deltaseq, markid, lstat, md5) TO stdout;
> > pg_dumpall: pg_dump failed on database "bacula", exiting
> >
> > In the logs I see:
> >
> > 2020-05-22 14:23:30.649 CEST [12768] LOG: server process (PID 534) was
> > terminated by signal 11: Segmentation fault
> > 2020-05-22 14:23:30.649 CEST [12768] DETAIL: Failed process was
> > running: COPY public.file (fileid, fileindex, jobid, pathid, filenameid,
> > deltaseq, markid, lstat, md5) TO stdout;
> > 2020-05-22 14:23:30.651 CEST [12768] LOG: terminating any other active
> > server processes
> > 2020-05-22 14:23:30.651 CEST [482] WARNING: terminating connection
> > because of crash of another server process
> > 2020-05-22 14:23:30.651 CEST [482] 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.
> > 2020-05-22 14:23:30.651 CEST [482] HINT: In a moment you should be able
> > to reconnect to the database and repeat your command.
> > 2020-05-22 14:23:30.652 CEST [12768] LOG: all server processes
> > terminated; reinitializing
> > 2020-05-22 14:23:30.671 CEST [578] LOG: database system was
> > interrupted; last known up at 2020-05-22 14:15:19 CEST
> > 2020-05-22 14:23:30.809 CEST [578] LOG: database system was not
> > properly shut down; automatic recovery in progress
> > 2020-05-22 14:23:30.819 CEST [578] LOG: redo starts at 197/D605EA18
> > 2020-05-22 14:23:30.819 CEST [578] LOG: invalid record length at
> > 197/D605EA50: wanted 24, got 0
> > 2020-05-22 14:23:30.819 CEST [578] LOG: redo done at 197/D605EA18
> > 2020-05-22 14:23:30.876 CEST [12768] LOG: database system is ready to
> > accept connections
> > 2020-05-22 14:29:07.511 CEST [12768] LOG: received fast shutdown request
> >
> >
> > Any ideas how to fix or debug this?
> >
> > Nico
> >
> > --
> >
> > Nico De Ranter
> >
> > Operations Engineer
> >
> > T. +32 16 38 72 10
> >
> >
> > <http://www.esaturnus.com>
> >
> > <http://www.esaturnus.com>
> >
> >
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> >
> >
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> >
> >
>
>
> --
> Adrian Klaver
> adrian(dot)klaver(at)aklaver(dot)com
>

--

Nico De Ranter

Operations Engineer

T. +32 16 38 72 10

<http://www.esaturnus.com>

<http://www.esaturnus.com>

eSATURNUS
Philipssite 5, D, box 28
3001 Leuven – Belgium

T. +32 16 40 12 82
F. +32 16 40 84 77
www.esaturnus.com

<http://www.esaturnus.com/>

*For Service & Support :*

Support Line Belgium: +32 2 2009897

Support Line International: +44 12 56 68 38 78

Or via email : medical(dot)services(dot)eu(at)sony(dot)com