Re: pg_dump question -- did I delete my database -- please help -- urgent

Dear Group,

Please help me if you can. I am in a the most gravest
situation. here


I read the bug report :
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=143208
reason:

I got error when i tried \dt
relation "pg_catalog.pg_user" does not exist.

After reading some responses Comment#21 and Comment#22
(I have no clue why I am getting that error and no
idea about SELinux).

I tried the following:
$sudo /etc/rc.d/init.d/postgresql stop
$ psql -d mrnatest
psql: could not connect to server: S
        Is the server running locally and accepting
        connections on Unix domain socket
"/tmp/.s.PGSQL.5432"?

$ sudo rm -rf /var/lib/pgsql/data
$ sudo /sbin/restorecon -R /var/lib/pgsql
$ sudo /etc/rc.d/init.d/postgresql start
Initializing database:
    [  OK  ]
Starting postgresql service:
    [  OK  ]
$ psql -d mir-test
psql: FATAL:  database "mrnatest" does not exist

$ psql -d arraydb
psql: FATAL:  database "arraydb" does not exist


I am very much worried and I feel blood is not running
any more in me.

Please folks, tell me if something is really wrong.

The reason I donot have a backup also is that, my
pg_dump is not working.

when pg_dump'ed my database I created 0 bits file.


Very eagerly looking forward for some help...please..

thanks



--- Srinivas Iyyer <srini_iyyer_bio@yahoo.com> wrote:

> *** Apologies for re-posting this e-mail ****
>
> Dear group,
> I have a strange problem. apologies if this is the
> wrong place, however as a first option i am posting
> here. I have to subscribe to other special mailing
> lists.
>
>
> I have two databases in my system.
>
> In firstdb i am having the following problem:
> firstdb=# \d targets
> ERROR:  could not access status of transaction 362
> DETAIL:  could not open file
> "/var/lib/pgsql/data/pg_clog/0000": No such file or
> directory
>
> when I vacuumed it:
> $ vacuumdb firstdb
> vacuumdb: vacuuming of database "firstdb" failed:
> ERROR:  could not access status of transaction 11
> DETAIL:  could not open file
> "/var/lib/pgsql/data/pg_clog/0000": No such file or
> directory
>
>
>
> Second problem:
>
> Issue with secondb - arraydb
>
>
>
> $ vacuumdb arraydb
> VACUUM
>
> Suspecting there is something going on with
> postgres,
> I wanted to take a backup of the arraydb.
>
> here is what I am doing:
>
> $ sudo pg_dump arraydb >
> arraydb_bcup_Aug_05_2006.dump
>
> $ ls -lh
> total 8.0K
> -rw-r--r--  1 speri postgres 0 Aug  5 20:17
> arradb_bcup_Aug_05_2006.out
>
>
> There is nothing in this. I created dumps long back
> and they are heavy.
>
> what could be the problem in the cases of first and
> second problems.
>
> looking forward to hear from experts eagerly.
>
> Thanks
>
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