On Tue, Mar 7, 2017 at 12:31 PM, Ray Stell <stellr@xxxxxx> wrote:
On this doc page are some command examples for pg_basebackup:
https://www.postgresql.org/
docs/current/static/app- pgbasebackup.html such as:
pg_basebackup -h mydbserver -D /usr/local/pgsql/data
I've never gotten this to work. When I bring up the copy on an intended standby system I always get the classic: PANIC: could not locate a valid checkpoint recordFailing that, I backed up with pg_start_backup/tar/pg_stop_backup as an alternative, but I was always curious what I was doing wrong. The wiki page on setting up replication: https://wiki.postgresql.org/ wiki/Streaming_Replication says use the command with this options: pg_basebackup -h 192.168.0.10 -D /srv/pgsql/standby -P -U replication --xlog-method=stream and I stumbled into option: --checkpoint=fast The standby was able to recover when I used one of these, I don't remember which, maybe both. Should the doc be updated or am I missing something?
If you are using pg_basebackup without a log archive, then yes, you need --xlog-method=stream (or fetch). The checkpoint method only affects how quickly the checkpoint runs, it will always run.
If you do have a log archive, it should work fine without --xlog=stream, but you need to put your restore_command into recovery.conf manually.
