Thank you - it worked beautifully. Dara On Thu, Mar 12, 2015 at 4:28 PM, Chander Ganesan <[email protected]> wrote:
> Hi Dara, > > A few things: > > 1. Replication is a binary process - that means that you can never set it > up with using any of the pg_dump type tools (i.e., pg_dumpall/pg_dump can > never be used.) > 2. PostgreSQL provides a special tool to make this process super-simple: > http://www.postgresql.org/docs/9.1/static/app-pgbasebackup.html > > So the steps should be as follows: > > 1. Don't touch the master (you really should never have to touch the > master's config/run state once you have replication setup, except for > performance tuning, etc.) > 2. Install PostgreSQL on the slave (if it already exists there, stop the > slave server.) > 3. On the slave server run the pg_basebackup tool (note: you may need to > delete the contents of the data directory on the slave first): > > pg_basebackup -D <DATA DIRECTORY ON SLAVE> -c -P -h <MASTER IP ADDRESS> -U > <REPLICATION USERNAME> > > 4. If your config files are in your data directory of the master, they'll > all be replicated over as well - if they are not then you'll need to copy > them over by hand. > > Hope that helps! > > Chander > > > > On 3/12/15 5:05 PM, Dara Unglaube wrote: > > We had two servers set up with streaming replication. I believe when we > did a full vacuum analyze to the database on the master, it caused the > slave to not be able to catch up (wal_keep_segments = 32, but still not > enough and had archive off). I am trying to re-set up the slave to > streaming replication. Below are the steps I took (attempted a couple times > now). Does anyone have any idea what I am doing wrong? The service is > unable to start after I copy and paste the files over. > > - Uninstalled and re-installed postgres on slave and master (v9.1.10) > > > - Stopped slave postgres service and added files and settings for > streaming replication to the slave (postgresql.cof, recovery.conf - which > all worked in the past set up) > - Loaded the master with a pg_dumpall backup file. > - Stopped the master postgres service. > - Copied the data directory from master to slave minus pg_xlog > folder, postgresql.conf and postgresql.pid files using rsync > - Attempted to start postgres on the slave and it is unable to start > - Postgres log: > - CDT LOG: entering standby mode > - CDT FATAL: the database is starting up (multiple times) > - CDT FATAL: could not connect to the primary server... (assume > this is ok because master has not been started yet) > - Event Viewer, Administrative Events > - Timed out waiting for server start up > > Any help, thoughts, comments, tips, etc would be greatly appreciated. > Thanks! > Dara > > > > -- > Chander Ganesan > Open Technology Group, Inc. > 11010 Lake Grove Blvd Ste. 100-307 > Morrisville, NC 27560 > 919-463-0999/877-258-8987http://www.otg-nc.com > >
