Обсуждение: Space Problems
Hi, I has a problem with a production database Postgres 7.1.2. Happens when finished free space disk. Some important tables were empty with no reason. I tried to find respectives files for tables with psql command : select relfilenode from pg_class where relname = '<table>'; relfilenode ------------- 19597 (1 row) Then I found this file into /home2/postgres/data/base/18720 directory $ ls -lh 19597 -rw------- 1 postgres postgres 0 Oct 30 2001 19597 First, it's look like empty. Second, the file date was too old for the database. But, looking into this directory, I found some files with date and size compatibles with my old database (when works !) $ ls -lh 1* -rw------- 1 postgres postgres 182.0M Mar 11 16:23 108464 -rw------- 1 postgres postgres 204.0M Mar 11 16:23 108487 -rw------- 1 postgres postgres 94.8M Mar 11 16:23 108490 -rw------- 1 postgres postgres 268.6M Mar 11 16:23 118920 -rw------- 1 postgres postgres 206.1M Mar 11 16:23 118953 Then, I tried to find them into pg_class table, with pgsql : # select * from pg_class where relfilenode in (108464,108487,108490,118920,118953); relname | reltype | relowner | relam | relfilenode | relpages | reltuples | reltoastrelid | reltoastidxid | relhasindex | relisshared | relkind | relnatts | relchecks | reltriggers | relukeys | relfkeys | relrefs | relhaspkey | relhasrules | relhassubclass | relacl ---------+---------+----------+-------+-------------+----------+-----------+---------------+---------------+-------------+-------------+---------+----------+-----------+-------------+----------+----------+---------+------------+-------------+----------------+-------- (0 rows) The point is : I think some system table was corrupted. The files are still in the directory, but it seems they are not referenced in the database system ( couldn't find any relationship between pg_class table and them) Have any way to restore them ?? I already restarted the database and executed vacuum command but didn't work. Could someone help me ? Tks Eduardo Naschenweng DÍGITRO TECNOLOGIA | |||
