[Pgpool-general] Question about Online Recovery

Tue Apr 7 23:46:21 UTC 2009

great, so recovery is working now?

On Tue, Apr 7, 2009 at 4:08 PM, Harold Lim <rold_50 at yahoo.com> wrote:

>
> Hi DM,
>
> I think pgpool is working now for me.
> I forgot to uncomment the listen address in my postgresql.conf of my new
> node.
> hehe
>
>
>
> Thanks,
> Harold
>
>
>
> --- On Tue, 4/7/09, DM <dm.aeqa at gmail.com> wrote:
>
> > From: DM <dm.aeqa at gmail.com>
> > Subject: Re: [Pgpool-general] Question about Online Recovery
> > To: rold_50 at yahoo.com
> > Cc: pgpool-general at pgfoundry.org
> > Date: Tuesday, April 7, 2009, 5:19 PM
>  > Hi Harold,
> >
> > Attached is the steps to recover the database using pgpool
> > recovery node.
> > (the document is not a standard, i prepared while i was
> > testing pgpool
> > recovery)
> > Email me for any questions on pgpool recovery i will try to
> > answer to my
> > best of knowledge.
> >
> > ------------------------------------------------------
> > Question: have a couple of errors.
> > LOG: could not receive data from client: connection reset
> > by peer
> > LOG: unexpected EOF within message length word
> >
> > Let me know if pgpool is working fine or not?
> >
> > ------------------------------------------------------
> > You dont need to define postgres password, but you have to
> > create user id
> > and password for using the file pcp.conf file under
> > "/opt/pgpoolII/etc/"
> >
> > snippiet form pcp.conf file..
> > # USERID:MD5PASSWD
> > pgpuser:09613b137a2e9be2ae93588c5970ab53
> >
> > my pcp_recovery_node command looks like this
> > usr/pgpool-II/2.2RC2/bin/pcp_recovery_node 20
> > <hostname> 9898 pgpuser
> > test123 1
> > ------------------------------------------------------
> >
> > My suggestion is execute your scripts base-backup.sh,
> > pgpool-recovery.sh,
> > pgpool_remote_start manually and see if it works or not. If
> > your scripts
> > work manually then pcp_recovery_node command should also
> > work.
> > Enjoy
> >
> > - Deepak Murthy
> >
> >
> > On Tue, Apr 7, 2009 at 1:05 PM, Harold Lim
> > <rold_50 at yahoo.com> wrote:
> >
> > >
> > > Hi DM,
> > >
> > > Can you send me your steps to recovery?
> > >
> > > Also, when I look at my postgresql log,
> > >
> > > I have a couple of errors.
> > >
> > > LOG: could not receive data from client: connection
> > reset by peer
> > > LOG: unexpected EOF within message length word
> > >
> >
> >
> > >
> > >
> > > I also have
> > >
> > > Password for user postgres:
> > > psql: fe_sendauth: no password supplied
> > >
> > >
> > >
> > > But I did supply a password when I run
> > pcp_recovery_node
> > >
> > > /opt/pgpoolII/bin/pcp_recovery_node 20 node1 9898
> > postgres postgres 1
> > >
> > >
> > > Thanks,
> > > Harold
> > >
> > >
> > >
> > > --- On Tue, 4/7/09, DM <dm.aeqa at gmail.com>
> > wrote:
> > >
> > > > From: DM <dm.aeqa at gmail.com>
> > > > Subject: Re: [Pgpool-general] Question about
> > Online Recovery
> > > > To: rold_50 at yahoo.com,
> > pgpool-general at pgfoundry.org
> > > > Date: Tuesday, April 7, 2009, 12:07 PM
> > >  > Harold,
> > > >
> > > > WAL archives can be enabled on one machine or
> > many machines
> > > > it depends on
> > > > how you want.
> > > > Assuming you have 2 systems one primary and
> > another
> > > > standby, in real time
> > > > scenario any system can go down. Its better to
> > enable WAL
> > > > on both system so
> > > > that if one fails you could recover from other.
> > > >
> > > > For your issue with recovery make sure that you
> > have added
> > > > both of your
> > > > system ip address or host name in pgpool_hba.conf
> > file and
> > > > try executing
> > > > your scripts one by one you should be able to
> > debug it.
> > > >
> > > > Also copy the scripts to recover the database on
> > both
> > > > machines.
> > > >
> > > > I can send you my steps to recovery if you want.
> > Its same
> > > > as Gerd's but
> > > > little modification.
> > > >
> > > > - Deepak
> > > >
> > -----------------------------------------------------------
> > > >
> > > > > Message: 2
> > > > > Date: Mon, 6 Apr 2009 15:32:34 -0700 (PDT)
> > > > > From: Harold Lim <rold_50 at yahoo.com>
> > > > > Subject: [Pgpool-general] Question about
> > Online
> > > > Recovery
> > > > > To: pgpool-general at pgfoundry.org
> > > > > Message-ID:
> > > > <5188.66741.qm at web51003.mail.re2.yahoo.com>
> > > > > Content-Type: text/plain; charset=us-ascii
> > > > >
> > > > >
> > > > > Hi All,
> > > > >
> > > > > I'm trying to setup the online recovery.
> > I'm
> > > > following the
> > > > > tutorial/beginners guide written by Gerd.
> > > > >
> > > > > I am getting an error for 2nd stage. Any
> > idea what the
> > > > problem might be?
> > > > >
> > > > >
> > > > > Below is the log file:
> > > > >
> > > > > 2009-04-06 18:28:14 DEBUG: pid 25867:
> > pcp_child:
> > > > authentication OK
> > > > > 2009-04-06 18:28:14 DEBUG: pid 25867:
> > pcp_child:
> > > > received PCP packet type
> > > > > of service 'O'
> > > > > 2009-04-06 18:28:14 DEBUG: pid 25867:
> > pcp_child: start
> > > > online recovery
> > > > > 2009-04-06 18:28:14 LOG:   pid 25867:
> > starting
> > > > recovering node 1
> > > > > 2009-04-06 18:28:14 DEBUG: pid 25867:
> > exec_checkpoint:
> > > > start checkpoint
> > > > > 2009-04-06 18:28:14 DEBUG: pid 25867:
> > exec_checkpoint:
> > > > finish checkpoint
> > > > > 2009-04-06 18:28:14 LOG:   pid 25867:
> > CHECKPOINT in
> > > > the 1st stage done
> > > > > 2009-04-06 18:28:14 LOG:   pid 25867:
> > starting
> > > > recovery command: "SELECT
> > > > > pgpool_recovery('copy_base_backup',
> > > > '172.16.63.10',
> > > > > '/opt/PostgreSQL/8.3/data')"
> > > > > 2009-04-06 18:28:14 DEBUG: pid 25867:
> > exec_recovery:
> > > > start recovery
> > > > > 2009-04-06 18:28:22 DEBUG: pid 25834:
> > starting health
> > > > checking
> > > > > 2009-04-06 18:28:22 DEBUG: pid 25834:
> > health_check: 0
> > > > th DB node status: 1
> > > > > 2009-04-06 18:28:22 DEBUG: pid 25834:
> > health_check: 1
> > > > th DB node status: 3
> > > > > 2009-04-06 18:28:33 DEBUG: pid 25867:
> > exec_recovery:
> > > > finish recovery
> > > > > 2009-04-06 18:28:33 LOG:   pid 25867: 1st
> > stage is
> > > > done
> > > > > 2009-04-06 18:28:33 LOG:   pid 25867:
> > starting 2nd
> > > > stage
> > > > > 2009-04-06 18:28:33 LOG:   pid 25867: all
> > connections
> > > > from clients have
> > > > > been closed
> > > > > 2009-04-06 18:28:33 DEBUG: pid 25867:
> > exec_checkpoint:
> > > > start checkpoint
> > > > > 2009-04-06 18:28:33 DEBUG: pid 25867:
> > exec_checkpoint:
> > > > finish checkpoint
> > > > > 2009-04-06 18:28:33 LOG:   pid 25867:
> > CHECKPOINT in
> > > > the 2nd stage done
> > > > > 2009-04-06 18:28:33 LOG:   pid 25867:
> > starting
> > > > recovery command: "SELECT
> > > > >
> > pgpool_recovery('pgpool_recovery_pitr',
> > > > '172.16.63.10',
> > > > > '/opt/PostgreSQL/8.3/data')"
> > > > > 2009-04-06 18:28:33 DEBUG: pid 25867:
> > exec_recovery:
> > > > start recovery
> > > > > 2009-04-06 18:28:33 ERROR: pid 25867:
> > exec_recovery:
> > > > pgpool_recovery_pitr
> > > > > command failed at 2nd stage
> > > > > 2009-04-06 18:28:33 DEBUG: pid 25867:
> > exec_recovery:
> > > > finish recovery
> > > > > 2009-04-06 18:28:33 DEBUG: pid 25867:
> > pcp_child:
> > > > received PCP packet type
> > > > > of service 'X'
> > > > > 2009-04-06 18:28:33 DEBUG: pid 25867:
> > pcp_child:
> > > > client disconnecting.
> > > > > close connection
> > > > >
> > > > > Thanks!
> > > > > Harold
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > ------------------------------
> > > > >
> > > > > Message: 3
> > > > > Date: Mon, 6 Apr 2009 16:42:20 -0700 (PDT)
> > > > > From: Harold Lim <rold_50 at yahoo.com>
> > > > > Subject: [Pgpool-general] Online recovery +
> > WAL
> > > > archiving
> > > > > To: pgpool-general at pgfoundry.org
> > > > > Message-ID:
> > > >
> > <858505.36310.qm at web51010.mail.re2.yahoo.com>
> > > > > Content-Type: text/plain; charset=us-ascii
> > > > >
> > > > >
> > > > > Hi,
> > > > >
> > > > > I'm currently looking at the pgpool-ii
> > > > beginner's guide.
> > > > > I'm mainly interested in online recovery
> > (e.g,
> > > > dynamically adding a new
> > > > > postgresql node).
> > > > >
> > > > > Do I have to enable wal archiving for all of
> > my node?
> > > > or just for my first
> > > > > node?
> > > > >
> > > > >
> > > > >
> > > > > Thanks!,
> > > > > Harold
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > ------------------------------
> > > > >
> > > > >
> > _______________________________________________
> > > > > Pgpool-general mailing list
> > > > > Pgpool-general at pgfoundry.org
> > > > >
> > http://pgfoundry.org/mailman/listinfo/pgpool-general
> > > > >
> > > > >
> > > > > End of Pgpool-general Digest, Vol 53, Issue
> > 5
> > > > >
> > *********************************************
> > > > >
> > >
> > >
> > >
> > >
>
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://pgfoundry.org/pipermail/pgpool-general/attachments/20090407/bec1576d/attachment.html 