Re: Broken after upgrade

On 07/09/2016 08:59 AM, arnaud gaboury wrote:
> On Sat, Jul 9, 2016 at 5:08 PM, arnaud gaboury <arnaud.gaboury@gmail.com> wrote:
>> On Sat, Jul 9, 2016 at 4:16 PM, Adrian Klaver <adrian.klaver@aklaver.com> wrote:
>>> On 07/09/2016 03:09 AM, arnaud gaboury wrote:
>>>>
>>>> On Sat, Jul 9, 2016 at 11:54 AM, arnaud gaboury
>>>> <arnaud.gaboury@gmail.com> wrote:
>>>>>
>>>>> On Thu, Jul 7, 2016 at 10:01 AM, arnaud gaboury
>>>>> <arnaud.gaboury@gmail.com> wrote:
>>>>>>
>>>>>> On Thu, Jul 7, 2016 at 1:00 AM, José María Terry Jiménez
>>>>>> <jtj@tssystems.net> wrote:
>>>>>>>
>>>>>>> El 7/7/16 a las 0:14, Devrim Gündüz escribió:
>>>>>>>
>>>>>>>> Hi,
>>>>>>>>
>>>>>>>> Fedora packages have an executable (not sure about its name, but check
>>>>>>>> a
>>>>>>>> package called postgresql-upgrade or so). That will help you to finish
>>>>>>>> the
>>>>>>>> upgrade process.
>>>>>>>>
>>>>>>>> Regards, Devrim
>>>>>>>>
>>>>>>> Hello
>>>>>>>
>>>>>>> Yes, the package is called postgresql-upgrade, and you can read
>>>>>>> detailed
>>>>>>> instructions in /usr/share/doc/postgresql
>>>>>>>
>>>>>>> In Fedora 22 (the machine i can check now) the document is called
>>>>>>> README.rpm-dist in that directory
>>>>>>>
>>>>>>> Hope helps you
>>>>>>
>>>>>>
>>>>>> I effectively found the postgresql-update tool. But when running it, I
>>>>>> get an error:
>>>>>>
>>>>>> # postgresql-setup --upgrade
>>>>>>
>>>>>>  * Upgrading database.
>>>>>> ERROR: pg_upgrade tool failed
>>>>>> ERROR: Upgrade failed.
>>>>>>  * See /var/lib/pgsql/upgrade_postgresql.log for details.
>>>>>>
>>>>>>
>>>>>> #  cat /var/lib/pgsql/upgrade_postgresql.log
>>>>>> -----------------------------------------------------------------
>>>>>> connection to database failed: could not connect to server: No such
>>>>>> file or directory
>>>>>>     Is the server running locally and accepting
>>>>>>     connections on Unix domain socket "/home/postgres/.s.PGSQL.5432"?
>>>>>>
>>>>>>
>>>>>> could not connect to old postmaster started with the command:
>>>>>> "/usr/lib64/pgsql/postgresql-9.4/bin/pg_ctl" -w -l
>>>>>> "pg_upgrade_server.log" -D "/db/pgsql/data-old" -o "-p 5432 -b  -c
>>>>>> listen_addresses='' -c unix_socket_permissions=0700 -c
>>>>>> unix_socket_directories='/home/postgres'" start
>>>>>> Failure, exiting
>>>>>> --------------------------------------------------
>>>>>>
>>>>>> My data dir is in fact /db/pgsql/data. I do not know why it is looking
>>>>>> for data-old.
>>>>>> I will investigate this way.
>>>>>>
>>>>>
>>>>> It took me some time to figure out the correct way for Fedora to
>>>>> upgrade pgsql. Here is the command I am supposed to run as postgres
>>>>> user, with postgresql.service stopped:
>>>>>
>>>>>
>>>>> $ pg_upgrade -b /usr/lib64/pgsql/postgresql-9.4/bin/ -B /usr/bin -d
>>>>> /db/pgsql/data.old -D /db/pgsql/data
>>>>>
>>>>> with data a new DB initialized with postgresql 9.5, data.old my
>>>>> original DB, postgresql-9.4/bin old cluster executable.
>>>>> NOTE: I didn't put my original config files pg_hba.conf, pg_ident.conf
>>>>> and postgresql.conf in the new data directory. I left everything
>>>>> untouched after the init command. Is it correct ?
>>>>>
>>>>> The above command returns an error:
>>>>> -----------------------------------------------------------------------
>>>>> *failure*
>>>>> Consult the last few lines of "pg_upgrade_server.log" for
>>>>> the probable cause of the failure.
>>>>>
>>>>> connection to database failed: could not connect to server: No such
>>>>> file or directory
>>>>>     Is the server running locally and accepting
>>>>>     connections on Unix domain socket "/db/pgsql/.s.PGSQL.50432"?
>>>>>
>>>>>
>>>>> could not connect to old postmaster started with the command:
>>>>> "/usr/lib64/pgsql/postgresql-9.4/bin/pg_ctl" -w -l
>>>>> "pg_upgrade_server.log" -D "/db/pgsql/data.old" -o "-p 50432 -b  -c
>>>>> listen_addresses='' -c unix_socket_permissions=0700 -c
>>>>> unix_socket_directories='/db/pgsql'" start
>>>>> Failure, exiting
>>>>> ---------------------------------------------------------------------
>>>>>
>>>>> My postgresql service is in fact started with its socket in
>>>>> /run/postgresql directory, as indicated in my postgresql.conf. Now,
>>>>> when running pg_upgrade, where is the socket ? I guess it shall be in
>>>>> << unix_socket_directories='/db/pgsql' >> as indicated in the log file
>>>>> above? But it isn't apparently as postgresql can find the socket. How
>>>>> can I change this behavior? How can I tell pg_upgrade to place the
>>>>> socket in /db/pgsql ?
>>>>>
>>>>> Thank you for help. This issue is getting me crazy and my mail server is
>>>>> broken.
>>>>
>>>>
>>>> UPDATE
>>>>
>>>> Running the following command (it indicates where to find the socket):
>>>>
>>>> $  /usr/lib64/pgsql/postgresql-9.4/bin/pg_ctl -w -l
>>>> "pg_upgrade_server.log" -D "/db/pgsql/data.old" -o "-p 50432 -b  -c
>>>> listen_addresses='' -c unix_socket_permissions=0700 -c
>>>> unix_socket_directories='/run/postgresql'" start >>
>>>> "pg_upgrade_server.log"
>>>>
>>>>
>>>> leave me this time with another error, in fact the original one:
>>>>
>>>> % cat pg_upgrade_server.log
>>>> waiting for server to start....FATAL:  22023: database files are
>>>> incompatible with server
>>>> DETAIL:  The data directory was initialized by PostgreSQL version 9.5,
>>>> which is not compatible with this version 9.4.8.
>>>> LOCATION:  ValidatePgVersion, miscinit.c:1216
>>>>  stopped waiting
>>>
>>>
>>> Actually it is the opposite of your original message:
>>>
>>> "postgres(at)thetradinghall ➤➤ systemd/system %
>>> /usr/libexec/postgresql-ctl start -D /db/pgsql/data -s -w -t 270
>>> FATAL:  22023: database files are incompatible with server
>>> DETAIL:  The data directory was initialized by PostgreSQL version 9.4,
>>> which is not compatible with this version 9.5.3.
>>>
>>>>
>>>> So aside this socket issue, it seems I am back again to the
>>>> initialization issue. Is there something wrong in the command I use ?
>>>>
>>>> $ pg_upgrade -b /usr/lib64/pgsql/postgresql-9.4/bin/ -B /usr/bin -d
>>>> /db/pgsql/data.old -D /db/pgsql/data
>>>>
>>>
>>> Have no idea as I am confused as to your layout and what you have done, so:
>>
>> I understand you are confused, as I am too and tried too many things
>> with no success.
>>
>> I have postgresql 9.5.3 installed, and the upgrade was from 9.4.8 to 9.5.3.
>> I can find in /usr/lib64/pgsql/postgresql-9.4 some binaries from
>> previous versions. Nothing in /opt/ as it can be sometimes indicated.
>>
>> I have my old database in /db/pgsql/data.old and the new empty
>> initialized with 9.5 in /db/pgsql/data.old (here versions are given by
>> PG_VERSION files).
>>
>>
>>>
>>> 1) Did you run the Fedora postgresql-setup upgrade command at any time?
>> Yes I did many times against a /db/pgsql/data with my 9.4 database (If
>> I run the command with the 9.5 initialized data folder, I get ERROR:
>> Cannot upgrade because the database in /db/pgsql/data is of
>>        version 9.5 but it should be 9.4).
>>
>> The command failed with this error:
>>
>> --------------------------
>> *failure*
>> Consult the last few lines of "pg_upgrade_server.log" for
>> the probable cause of the failure.
>>
>> connection to database failed: could not connect to server: No such
>> file or directory
>>     Is the server running locally and accepting
>>     connections on Unix domain socket "/home/postgres/.s.PGSQL.5432"?
>> could not connect to old postmaster started with the command:
>> "/usr/lib64/pgsql/postgresql-9.4/bin/pg_ctl" -w -l
>> "pg_upgrade_server.log" -D "/db/pgsql/data-old" -o "-p 5432 -b  -c
>> listen_addresses='' -c unix_socket_permissions=0700 -c
>> unix_socket_directories='/home/postgres'" start
>> ----------------------------
>>
>> As already mentioned, postgresql put its socket in /run/postgresql.
>> Btw, both directories (/run/postgresql and /home/postgresql) are
>> indicated in postgresql.conf:
>>  unix_socket_directories = '/home/postgres,/run/postgresql'
>>
>> I would like now to try the above command when avoiding this socket story issue.
>>>
> UPDATE:
>
> with the idea to start my database with postgres 9.4 then dump the
> databse. I run:
>
> $ /usr/lib64/pgsql/postgresql-9.4/bin/pg_ctl -D /db/pgsql/data-9.4 start
>
> but it returns this error:
> FATAL:  58P01: could not access file "pg_stat_statements": No such
> file or directory
>
> $ ls -al data-9.4/pg_stat
> .......
> -rw------- 1 postgres postgres  905 Jul  9 15:36 pg_stat_statements.stat
>
>
> Why do I have this error then ?
>

Please let's not introduce new errors until we figure out the existing
errors and setup.


--
Adrian Klaver
adrian.klaver@aklaver.com