Dear Pg-users,
I am coming back to Postgres/PostGIS after a few years. I am dealing with a big database with a lot of geometries and too many vertices.
After hours running a query to Subdivide, I get this Postgres error
2023-09-08 02:11:23.745 BST [328594] postgres@database ERROR: could not extend file "base/16388/7985375.1020": No space left on device
2023-09-08 02:11:23.745 BST [328594] postgres@database HINT: Check free disk space.
2023-09-08 02:11:23.745 BST [328594] postgres@database STATEMENT: CREATE TABLE _gaul_administrative_subdivided100 AS (
SELECT *, st_subdivide(geom,100) AS geom_subdivided100
FROM gaul_administrative
);
2023-09-08 02:15:38.251 BST [313729] LOG: checkpoint complete: wrote 81956 buffers (1.6%); 0 WAL file(s) added, 0 removed, 608 recycled; write=269.414 s, sync=0.001 s, total=269.634 s; sync files=1, longest=0.001 s, average=0.001 s; distance=9962549 kB, estimate=9980351 kB; lsn=291/BF46ABE8, redo lsn=291/A0FB7D98
It seems that it is not a problem of space.
Command df -h returns:
Filesystem Size Used Avail Use% Mounted on
tmpfs 6.3G 1.1M 6.3G 1% /run
/dev/sda 1.3T 164G 1.1T 14% /
tmpfs 32G 3.2M 32G 1% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 6.3G 4.0K 6.3G 1% /run/user/1000
Command df -ih returns:
Filesystem Inodes IUsed IFree IUse% Mounted on
tmpfs 7.9M 724 7.9M 1% /run
/dev/sda 80M 179K 80M 1% /
tmpfs 7.9M 4 7.9M 1% /dev/shm
tmpfs 7.9M 3 7.9M 1% /run/lock
tmpfs 1.6M 28 1.6M 1% /run/user/1000
I suppose it is an issue with temporary table, here my present configuration in postgresql.conf
#temp_tablespaces = '' # a list of tablespace names, '' uses
# only default tablespace
#temp_file_limit = -1 # limits per-process temp file space
# in kilobytes, or -1 for no limit
What do you suggest?
cheers,
Enzopolo
