[pgpool-general: 1093] Error:Pgpool For Mulitple server setting

[newbie my]

Hi guys,

I need help with my pgpool-II setup.
When running the pgpool-II from the webserver , I could see these error
when clicking the error.


2012-10-25 08:45:37     ERROR:     pid 25155:     pool_init_pool_passwd:
couldn't open /usr/local/etc/pool_passwd. reason: Permission denied
2012-10-25 08:45:37     LOG:     pid 25155:     Backend status file
/var/log/pgpool/pgpool_status discarded
2012-10-25 08:45:37     LOG:     pid 25155:     pgpool-II successfully
started. version 3.2.0 (namameboshi)
2012-10-25 08:45:37     ERROR:     pid 25189:
check_replication_time_lag: SELECT pg_last_xlog_replay_location() returns
no data
2012-10-25 08:45:37     LOG:     pid 25155:     find_primary_node: primary
node id is 0
2012-10-25 08:45:48     ERROR:     pid 25189:
check_replication_time_lag: SELECT pg_last_xlog_replay_location() returns
no data
2012-10-25 08:45:58     ERROR:     pid 25189:
check_replication_time_lag: SELECT pg_last_xlog_replay_location() returns
no data

Can anyone explain what exactly these error are?

Thanks.
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