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Re: FSM corruption and standby servers - Mailing list pgsql-admin

From Poul Kristensen
Subject Re: FSM corruption and standby servers
Date
Msg-id CAAOuvVqPjon3=26Pnv7-55k5VeJHyr8=ALg5KFX2GJ3ns8FQ5g@mail.gmail.com
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In response to Re: FSM corruption and standby servers  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: FSM corruption and standby servers
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I have some comments to the documentation. 

I worked with PostgreSQL for some time ago( 5-8 years)  setting up a few Postgres databases using version 8.4 and RHEL 5:* in production and still running.
A LOT have happened since then and I am going to setup Postgres 9+ with everything needed to secure data, backup(PITR) 
, cluster with zero dataloss. OS is RHEL 7.2.
I my opinion the documentation is not very straightforward with examples omn exactly how to make such a complete installation using
2+ servers to make data available 24/7. One has to pick up a little here and a litte there. And one always have to do a litte there and here to make things switch
in order to make data available 24/7. 
Creating of tablespace can't be scriptet, Restore(I know this another list(pg_rman) can't handle symbolic links. 
Sorry about my belching as vocabulary and my bad english!

/Poul
     

 

2016-10-31 19:19 GMT+01:00 Tom Lane <tgl@sss.pgh.pa.us>:
"David G. Johnston" <david.g.johnston@gmail.com> writes:
> On Mon, Oct 31, 2016 at 9:55 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> I would have thought that the referenced page is clear enough about
>> needing to check the standbys; do you think it isn't?

> ​I can ​see how the following is a bit loose for someone not super-familiar
> with WAL.

Yeah.  On the other hand, I don't want people who aren't running
replication to stop reading as soon as they see something about standby
servers.  I tweaked the existing wording a bit to emphasize that standbys
can be corrupt even with a valid master; hopefully that's enough.

                        regards, tom lane


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--
Med venlig hilsen / Best regards
Poul Kristensen
Linux-OS/Virtualizationexpert and Oracle DBA

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