Thread: Extending tablespaces
Recently I ran into a "disk full" problem with my database. I had to play with the tablespaces and locations symlinks... until the disk could be cleaned just enough for the database to continue operation. I had plenty of space on another disk but found no *easy* way to humbly ask postgres to continue using other empty disk. I read the partitioning at http://www.postgresql.org/docs/8.1/interactive/ddl-partitioning.html but this unfortunately is not an option. Now I am thinking what it would take to give pg the functionality to extend tablespaces automatically. Something like "ALTER TABLESPACE foo ADD LOCATION '/bar'" and then PG can continue operation without notifying the disk is full... I yet have to dive more deeply into the storage system to gain more knowledge. I also realize that implementing something like this will effect many things like VACUUM, pg_dump, indexing, sorting and the entire storage system etc..etc.. I very much would like to know the communities opinion and thoughts about this. Would this even be possible? Or I am just dreaming (again) and scaring everyone else. -- Regards, Gevik Babakhani www.postgresql.nl www.truesoftware.nl
Gevik Babakhani <pgdev@xs4all.nl> writes:
> Now I am thinking what it would take to give pg the functionality to
> extend tablespaces automatically.
It's called LVM ... and no, we are not interested in reimplementing
filesystem-level functionality ...
regards, tom lane
Okay, thank you. On Thu, 2006-10-19 at 15:56 -0400, Tom Lane wrote: > Gevik Babakhani <pgdev@xs4all.nl> writes: > > Now I am thinking what it would take to give pg the functionality to > > extend tablespaces automatically. > > It's called LVM ... and no, we are not interested in reimplementing > filesystem-level functionality ... > > regards, tom lane > > ---------------------------(end of broadcast)--------------------------- > TIP 1: if posting/reading through Usenet, please send an appropriate > subscribe-nomail command to majordomo@postgresql.org so that your > message can get through to the mailing list cleanly >