Re: [GENERAL] Can't restart Postgres - Mailing list pgsql-general

From Shawn Thomas
Subject Re: [GENERAL] Can't restart Postgres
Date
Msg-id BC12E407-DD1B-4917-BB33-9BD4DFCBA883@u.washington.edu
Whole thread Raw
In response to Re: [GENERAL] Can't restart Postgres  ("Joshua D. Drake" <jd@commandprompt.com>)
Responses Re: [GENERAL] Can't restart Postgres  (Magnus Hagander <magnus@hagander.net>)
Re: [GENERAL] Can't restart Postgres  (Adrian Klaver <adrian.klaver@aklaver.com>)
Re: [GENERAL] Can't restart Postgres  (Adrian Klaver <adrian.klaver@aklaver.com>)
Re: [GENERAL] Can't restart Postgres  ("Joshua D. Drake" <jd@commandprompt.com>)
List pgsql-general
/usr/lib/postgresql/9.4/bin/pg_ctl: No such file or directory

postgres@pangaea:/usr/lib/postgresql/9.4/bin$ ls -al
  total 4008
  drwxr-xr-x 2 root root    4096 Feb  9 16:17 .
  drwxr-xr-x 3 root root    4096 Feb  9 16:17 ..
  -rwxr-xr-x 1 root root   68128 Nov 16 06:53 clusterdb
  -rwxr-xr-x 1 root root   68192 Nov 16 06:53 createdb
  -rwxr-xr-x 1 root root   63920 Nov 16 06:53 createlang
  -rwxr-xr-x 1 root root   72672 Nov 16 06:53 createuser
  -rwxr-xr-x 1 root root   63936 Nov 16 06:53 dropdb
  -rwxr-xr-x 1 root root   63920 Nov 16 06:53 droplang
  -rwxr-xr-x 1 root root   63904 Nov 16 06:53 dropuser
  -rwxr-xr-x 1 root root   68416 Nov 16 06:53 pg_basebackup
  -rwxr-xr-x 1 root root  351904 Nov 16 06:53 pg_dump
  -rwxr-xr-x 1 root root 2186504 Nov 16 06:53 pg_dumpall
  -rwxr-xr-x 1 root root   30992 Nov 16 06:53 pg_isready
  -rwxr-xr-x 1 root root   47600 Nov 16 06:53 pg_receivexlog
  -rwxr-xr-x 1 root root   51928 Nov 16 06:53 pg_recvlogical
  -rwxr-xr-x 1 root root  154944 Nov 16 06:53 pg_restore
  -rwxr-xr-x 1 root root  515320 Nov 16 06:53 psql
  -rwxr-xr-x 1 root root   68160 Nov 16 06:53 reindexdb
  -rwxr-xr-x 1 root root   72384 Nov 16 06:53 vacuumdb

As I mentioned, this Debian package removes pg_ctl from the bin directory and instead attempts to wrap the pg_ctl
functionalityin a perl script so that the PG process is integrated with systemd.  I really wish they hadn’t, and it’s
partof the reason I’m where I’m at. 

-Shawn



> On Feb 15, 2017, at 8:49 AM, Joshua D. Drake <jd@commandprompt.com> wrote:
>
> On 02/15/2017 08:35 AM, Shawn Thomas wrote:
>> Yes, that’s the correct sequence of scripts.  And no there’s not anything really helpful in the system logs.
>>
>> I’m thinking that at this point I need to approach this problem as more of a disaster recovery.  There was a full
pg_dumpall file that was deleted and cannot be recovered so I need to recover the data from the
/var/lib/postgresql/9.4/maindirectory.  I believe this is called a file level recovery.  I assume I need to use a fully
functional,same version PG (on another machine?) to create a full dump of the data directory.  Once I have this I can
re-installPostgres on the initial server and read the databases back into it. 
>>
>> Any advice on how to best go about this?  The official documentation seems a bit thin:
>>
>> https://www.postgresql.org/docs/9.4/static/backup-file.html
>>
>> I’ve only worked with normal (pg_dump, pg_dumpall) backups in the past.
>
> Shawn
>
> As the postgres user:
>
> /usr/lib/postgresql/9.4/bin/pg_ctl -D /var/lib/postgresql/9.4/main start
>
> What returns?
>
> Sincerely,
>
> JD
>
>
> --
> Command Prompt, Inc.                  http://the.postgres.company/
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> PostgreSQL Centered full stack support, consulting and development.
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