A Qui, 14-07-2016 às 10:52 +0100, Miguel Ramos escreveu: > > A Qua, 13-07-2016 às 18:42 -0400, Tom Lane escreveu: > > > > I wrote: > > > > > > I'm still suspicious that this might be some sort of NOTICE- > > > processing- > > > related buffer bloat. Could you try loading the data with the > > > server's > > > log_min_messages level cranked down to NOTICE, so you can see > > > from > > > the > > > postmaster log whether any NOTICEs are being issued to the > > > pg_restore > > > session? > > > > BTW, I experimented with that theory by creating a table with a > > BEFORE > > INSERT trigger function that emits a NOTICE, and then making > > pg_restore > > restore a lot of data into it. I could not see any memory growth > > in > > the pg_restore process. However, I was testing 9.1.22, not 9.1.8. > > Also, some of the misbehaviors we've discovered along these lines > > have > > been timing-sensitive, meaning that the problem might or might not > > reproduce for another person even with the same software version. > > Are you running pg_restore locally on the same machine as the > > server, > > or across a network --- and if the latter, how fast is the network? > > > > regards, tom lane > > > > I was running pg_restore locally. > The disk containing the backup, however, is on NAS. > The NAS is mounted on the server using SMB and the FreeBSD kernel > implementation of smbfs (mount_smbfs -I ... /mnt). > The kernel smbfs is notoriously outdated and sometimes we get > timeouts. > > However, those timeouts happen randomly and this "out of memory" > happens consistently. > This time, the server was no longer under heavy load, the log lines > are > consecutive, there was no activity during the start of the COPY > statement and the error. > > The network is 1Gbps with a single unmanaged 24-port switch. > The server > has two aggregated links to the switch. > > > I ran pg_restore locally because the server is in another office, > connected to mine through a VPN. > > Now I have arranjed for a PC to be there for me and my next test will > be to do the restore using the latest pgadmin. > > > Thanks, > > -- Miguel Ramos > I tried the restore using pgAdmin III 1.22.1. This time from a Windows PC connected to the server through a 1Gbps switch. Unfortunately the result was the same, and this was my best bet. I see (transcribed by hand from screenshot): ... pg_restore: processing data for table "inspection.positioned_scan" out of memory Process returned exit code 1. I hadn't yet set log_min_messages to 'notice'. But as client_min_messages is at 'notice', aren't this displayed on a verbose pg_restore? Maybe during the weekend I can have more verbose logging. Now I'm repeating the backup (maybe the file is bad) and then I will repeat the restore with log_min_messages to 'notice'. I suppose log_statement to 'all' is no longer necessary? What else? -- Miguel Ramos -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
