Re: recovery from out of disk space

On Wed, Oct 20, 2010 at 9:32 AM, Alexander B <alexander_b74(at)yahoo(dot)com> wrote:
> I use PostGre 8.3 on Ubuntu.
>
> I realized last Friday that my /opt hard disk was full. The disk was full
> about 2-4 hours of moderate activity. The disk  ran out of space for reasons
> outside of postgres
> I'm really at a loss of what to do.  Does anyone have suggestions for what
> my next step should be.  T
>
> More details:
>
> When I run postgress...Postgres seems to come up...However, it is completely
> unresponsive to my application.  Everything just hangs.
>
> postgres  7364  0.0  1.5 1089056 27164 ?       S    09:35   0:00
> /opt/PostgreSQL/8.3/bin/postgres -D /opt/PostgreSQL/8.3/data
> postgres  7365  0.0  0.0  10700   984 ?        Ss   09:35   0:00 postgres:
> logger process
> postgres  7367  0.0  0.4 1089572 7244 ?        Ss   09:35   0:00 postgres:
> writer process
> postgres  7368  0.0  0.0 1089572 1056 ?        Ss   09:35   0:00 postgres:
> wal writer process
> postgres  7369  0.0  0.0 1089712 1348 ?        Ss   09:35   0:00 postgres:
> autovacuum launcher process
> postgres  7370  0.0  0.0  10828  1236 ?        Ss   09:35   0:00 postgres:
> stats collector process
>
> I also tried to run pg_dump to make a backup and that failed with the
> following message:
>
> (reverse-i-search)`./.': cd ../../
> root(at)domU-12-31-39-0F-44-82:/opt/PostgreSQL/8.3/bin# p -v -c -f
> /opt/backup/bb.txt -U nuxeo nuxeodb
> pg_dump: reading schemas
> pg_dump: reading user-defined functions
> pg_dump: reading user-defined types
> pg_dump: reading procedural languages
> pg_dump: reading user-defined aggregate functions
> pg_dump: reading user-defined operators
> pg_dump: reading user-defined operator classes
> pg_dump: reading user-defined text search parsers
> pg_dump: reading user-defined text search templates
> pg_dump: reading user-defined text search dictionaries
> pg_dump: reading user-defined text search configurations
> pg_dump: reading user-defined operator families
> pg_dump: reading user-defined conversions
> pg_dump: reading user-defined tables
> pg_dump: SQL command failed
> pg_dump: Error message from server: ERROR:  permission denied for relation
> totalcount
> pg_dump: The command was: LOCK TABLE public.totalcount IN ACCESS SHARE MODE
> pg_dump: *** aborted because of error

my guess is that while moving the database from one physical volume to
another you did not preserver permissions etc (typically done via 'cp
-a'). If you have the source database, repeat the copy, making sure
to preserve. Otherwise it all has to be set manually.

merlin