Обсуждение: drive failure
Hello, He had a drive fail in an array and the spare kicked in to replace the failed drive. However, when I query a specific table, I get the below error: ERROR: could not open file "pg_tblspc/16412/PG_9.0_201008051/16419/5875980.7" (target block 2968776487): No such file or directory When I change to this directory, the file in question does not exist. Am I to assume that I'm completely hosed? If the spare kicked in, what happened to the file listed above? Any hints would be most appreciated. Thanks.
We were able to determine through a few of our queries that an index was corrupt. We did this through the process of elimination however. As a result, I have two questions: How can I determine that we have a corrupt index? How can I determine which datafile (5875980.x) is related to which tablespace? On Thu, 2011-03-31 at 08:38 -0400, Tony Capobianco wrote: > Hello, > He had a drive fail in an array and the spare kicked in to replace the > failed drive. However, when I query a specific table, I get the below > error: > > ERROR: could not open file > "pg_tblspc/16412/PG_9.0_201008051/16419/5875980.7" (target block > 2968776487): No such file or directory > > > When I change to this directory, the file in question does not exist. > Am I to assume that I'm completely hosed? If the spare kicked in, what > happened to the file listed above? Any hints would be most appreciated. > > Thanks.
On Thu, Mar 31, 2011 at 7:11 PM, Tony Capobianco <tcapobianco@prospectiv.com> wrote:
We were able to determine through a few of our queries that an index was
corrupt. We did this through the process of elimination however. As a
result, I have two questions:
How can I determine that we have a corrupt index?
Yes, this can be achieved by block level checking with pg_dump utility::
pg_dump -d <DB Name> -p <Port> -v >/dev/null
If there is any corrupted indexes or tables exists in the Database, it will throw an error with block number.
How can I determine which datafile (5875980.x) is related to which
tablespace?
Get oid & Name of the tablespace using below command:
select oid,* from pg_tablespace;
Once you get the oid,tablespace name, you can easily identify the which datafile is related to which tablespace in "pg_tblspc" directory.
--Raghu Ram
On Thu, 2011-03-31 at 08:38 -0400, Tony Capobianco wrote:
> Hello,
> He had a drive fail in an array and the spare kicked in to replace the
> failed drive. However, when I query a specific table, I get the below
> error:
>
> ERROR: could not open file
> "pg_tblspc/16412/PG_9.0_201008051/16419/5875980.7" (target block
> 2968776487): No such file or directory
>
>
> When I change to this directory, the file in question does not exist.
> Am I to assume that I'm completely hosed? If the spare kicked in, what
> happened to the file listed above? Any hints would be most appreciated.
>
> Thanks.
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