From: | darcy(at)druid(dot)net (D'Arcy J(dot)M(dot) Cain) |
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To: | tgl(at)sss(dot)pgh(dot)pa(dot)us (Tom Lane) |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: pg_sorttemp files |
Date: | 2001-10-19 11:52:05 |
Message-ID: | 20011019115206.12D291A71@druid.net |
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Lists: | pgsql-hackers |
Thus spake Tom Lane
> darcy(at)druid(dot)net (D'Arcy J.M. Cain) writes:
> > I have tons of old files with names like base/db/pg_sorttemp####.##. I
> > assume that they are temporary sorting files but somehow they never got
> > cleared out. Is it safe to delete these from a running system. The files
> > are months old.
>
> The first #### is the PID of the backend that made them. If there is no
> such backend anymore according to ps, it's safe to zap 'em. I'd rely on
> that much more than the mod date.
Thanks. I wasn't sure about that PID thing but I have now run a script
that got rid of them all.
> BTW, if you are seeing unreclaimed sorttemp files in a recent release
> (7.0 or later), I'd like to know about it. That shouldn't happen,
> short of a backend crash anyway...
Well, I had over 6,000 of these files. This database is about a year old.
I haven't seen all that many backend crashes in that time. I guess I better
keep a close eye on them.
--
D'Arcy J.M. Cain <darcy(at){druid|vex}.net> | Democracy is three wolves
http://www.druid.net/darcy/ | and a sheep voting on
+1 416 425 1212 (DoD#0082) (eNTP) | what's for dinner.
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