The documentation of the pg_upgrade -l/--logfile option never made much sense to me:
-l, --logfile=FILENAME log session activity to file I don't know what "session" means for pg_upgrade, so I never used it. What it actually does is log the output of all the programs that pg_upgrade calls internally, such as pg_ctl, psql, vacuumdb, pg_resetxlog, to the specified file, which is quite useful for analyzing errors such as unable to connect to new postmaster started with the command: "/usr/lib/postgresql/9.1/bin/pg_ctl" -w -l "/dev/null" -D "/var/lib/postgresql/9.1/main" -o "-p 5433 -b" start >> "/dev/null" 2>&1 where -l would have put something in the place of /dev/null. So what might be a better wording for this option? Something like "log output of internally called programs to file"? -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers