[pgpool-general: 8578] Re: PgPool thinks node 0 is in recovery.

[Ron]

Right.  PgPool *thinks* that backend 0 is down, but it's actually up and 
running.

Where do I look to see why Pgpool thinks backend 0 is down even though 
backend 0 is actually up?

On 1/26/23 20:57, Tatsuo Ishii wrote:
>> psql on FISPCCPGS405a port 5432 says that pg_is_in_recovery() = 'f'
>> (that is correct), while psql on FISPCCPGS405a port 9999 says that
>> pg_is_in_recovery() = 't'.
>>
>> That is incorrect, and certainly why "psql --host=localhost
>> --port=9999" drops me into a read only transaction.
> Because backend 0 is in down status, Pgpool-II thinks backend 0 is out
> of use and sends all queries to backend 1.
>
> So you need to solve the problem, i.e. backend0 is in down status
> problem first.
>
>> What should I look for (logging is debug3") to resolve this?
>>
>> $ hostname
>> FISPCCPGS405a
>>
>>
>> $ grep FISPCCPGS405[ab] pgpool.conf
>> backend_hostname0 = 'FISPCCPGS405a'
>> backend_hostname1 = 'FISPCCPGS405b'
>> hostname0 = 'FISPCCPGS405a'
>> hostname1 = 'FISPCCPGS405a'
>>
>>
>> $ psql --host=localhost --username=postgres --port=9999 -c "\x" -c
>> "show pool_nodes;"
>> Expanded display is on.
>> -[ RECORD 1 ]----------+--------------------
>> node_id                | 0
>> hostname               | FISPCCPGS405a
>> port                   | 5432
>> status                 | down <<<<<<<<<<<<<<
>> pg_status              | up <<<<<<<<<<<<<<
>> lb_weight              | 0.666667
>> role                   | primary
>> pg_role                | primary
>> select_cnt             | 0
>> load_balance_node      | false
>> replication_delay      | 0
>> replication_state      |
>> replication_sync_state |
>> last_status_change     | 2023-01-26 13:31:04
>> -[ RECORD 2 ]----------+--------------------
>> node_id                | 1
>> hostname               | FISPCCPGS405b
>> port                   | 5432
>> status                 | up <<<<<<<<<<<<<<<
>> pg_status              | up <<<<<<<<<<<<<<<
>> lb_weight              | 0.333333
>> role                   | standby
>> pg_role                | standby
>> select_cnt             | 0
>> load_balance_node      | true
>> replication_delay      | 0
>> replication_state      |
>> replication_sync_state |
>> last_status_change     | 2023-01-26 13:31:04
>>
>>
>>
>> -- 
>> Born in Arizona, moved to Babylonia.
>> _______________________________________________
>> pgpool-general mailing list
>> pgpool-general at pgpool.net
>> http://www.pgpool.net/mailman/listinfo/pgpool-general

-- 
Born in Arizona, moved to Babylonia.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.pgpool.net/pipermail/pgpool-general/attachments/20230127/e530ac22/attachment.htm>