On Thu, Dec 7, 2017 at 5:18 PM, Dylan Luong <Dylan.Luong@xxxxxxxxxxxx> wrote: > We have an issue where one of the developers ran a large query that hung was > filling up the DATA drive very rapidly. From 50% usage to 95% in less than > 2hrs. > > It created a very large pgsql_tmp size (300GB). To stop the drive filling up > we had to kill the process manually using kill -9. > > How do we clean up the pgsql_tmp folder? Will Postgres periodically clean > it? Ie CHECKPOINT? Hi Dylan, A clean shutdown/restart will clean it out. A crash restart (as happens if you kill processes like that) doesn't clear away pgsql_tmp data on the theory that it might be useful for forensics. -- Thomas Munro http://www.enterprisedb.com
