Re: testing hot standby

On Mon, Apr 12, 2010 at 1:48 AM, Fujii Masao <masao(dot)fujii(at)gmail(dot)com> wrote:
> On Mon, Apr 12, 2010 at 3:29 PM, Jaime Casanova
> <jcasanov(at)systemguards(dot)com(dot)ec> wrote:
>> On Mon, Apr 12, 2010 at 1:21 AM, Fujii Masao <masao(dot)fujii(at)gmail(dot)com> wrote:
>>> Didn't the standby
>>> accept connections before executing pgbench?
>>>
>>
>> nop, and last time i try it was in that state for an hour (without
>> accepting connections)... after that i execute on the primary: CREATE
>> TABLE tt2 AS SELECT generate_series(1, 100) as i
>> After that, the standby start accepting connections
>
> OK. Your reproduction scenario is the following?
> If not, could you show me the complete scenario?
>
> 1. start the primary
> 2. pg_start_backup()
> 3. copy $PGDATA from the primary to the standby
> 4. pg_stop_backup();
> 5. create the recovery.conf and start the standby

execute some WAL-logged action (i've seen this happen even with no
WAL-logged action if i wait for a while before shutdown servers)

> 6. shutdown (smart mode) the standby

shutdown (smart) the primary
start the primary again

> 7. start the standby again
>   --> cannot accept connnections until new WAL has been created
>

a manual CHECKPOINT on the primary does help

--
Atentamente,
Jaime Casanova
Soporte y capacitación de PostgreSQL
Asesoría y desarrollo de sistemas
Guayaquil - Ecuador
Cel. +59387171157