[Bucardo-general] how to backup and restore postgres9.6 running on bucardo cluster

arshi shaikh arshi.s at gmail.com
Thu Dec 27 07:09:05 UTC 2018

Hi .

  Any update ?

Arshi Shaikh

On Tue, Dec 11, 2018, 5:34 PM arshi shaikh <arshi.s at gmail.com> wrote:

> Hi David,
> Thanks a lot for your reply. Below is the scenario that we are trying.
> As explained earlier we have 3 node Multimaster cluster and bucardo is
> running on separate node.
> We would like to take the backup from one of the nodes so that in event
> when any of the node goes down we can do
> recover from the backup.
> Assume that backup is taken at 10:00AM from one of the cluster node and
> bucardo node. Backup is taken using pg_basebackup utility of Postgres.
> Consider node 3 goes down at 10:30AM and we want to recover it so that it
> can join the existing cluster and be in sync with
> other Master nodes.
> We tried following steps to achieve this
> 1. Performed restore on node3 from the backup taken at 10:00AM.
> 2.  After restore was completed node3 was able to join the cluster.
> However Transaction that happend between 10:00AM to 10:30AM
> where missing from this node. Also bucardo did not recognizes that node3
> is not in sync.
> We would like to know that if there are any additional steps need to
> perform to bring node3 in sync. Also let us know if we are doing anything
> wrong.
> Any help or suggestion are appreciated.
> Thanks in Advance,
> Arshi Shaikh
> On Thu, Nov 29, 2018 at 11:24 PM David Christensen <david at endpoint.com>
> wrote:
>> > Hi ,
>> >
>> >   Can some one please point me to the document or guide me steps by
>> which I can take the backup of postgres9.6 running bucado cluster.
>> >
>> > I have 3 node. Node1 is running bucardo server and other 2 are data
>> node.
>> > I want to know exact steps by which I can take backup of bucardo
>> cluster and prerequisites that I have to check before triggering the backup.
>> > Also steps to restore the backup on failed node and joining back in
>> cluster or adding new node in cluster.
>> > Any Help is appreciated ..
>> Hi Arshi,
>> There shouldn’t really be any specific trick to this; you’d just backup
>> the database as normal, making sure to also backup your “bucardo” database
>> if that runs on a separate database cluster.  “pg_dump”,  “pg_backrest”,
>> etc should just work as normal to save the state of the Bucardo database.
>> HTH,
>> David
>> --
>> David Christensen
>> End Point Corporation
>> david at endpoint.com
>> 785-727-1171
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