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ORA-00600: internal error code, arguments: [smboPut:fixedlen2]

ORA-00600: internal error code, arguments: [smboPut:fixedlen2] published on Комментариев к записи ORA-00600: internal error code, arguments: [smboPut:fixedlen2] нет

while import full dump from AIX machine to X86 faced this error:

ORA-00600: internal error code, arguments: [smboPut:fixedlen2], [2], [7], [0], [66436], [], [], [], [], [], [], []
Failing sql is:
CREATE INDEX SHIPMENT_INS_DATE ON SHIPMENT ("INSERT_DATE") 
ORA-39083: Object type INDEX failed to create with error:
ORA-00600: internal error code, arguments: [smboPut:fixedlen2], [2], [7], [0], [66436], [], [], [], [], [], [], []

helped to set this parameter:

ALTER system SET "_newsort_enabled" = FALSE;

ps: version is 11.2.0.4.5

ORA-25152: TEMPFILE cannot be dropped at this time

ORA-25152: TEMPFILE cannot be dropped at this time published on Комментариев к записи ORA-25152: TEMPFILE cannot be dropped at this time нет

hello, here how I dropped tempfile :

start with:

ALTER TABLESPACE temp  DROP TEMPFILE '+DATADG/p00pgp/tempfile/temp.340.882540285';
ALTER TABLESPACE temp  DROP TEMPFILE '+DATADG/p00pgp/tempfile/temp.339.882540283';

but when I try to drop datafiles I’ve got this error:
ORA-25152: TEMPFILE cannot be dropped at this time

helped this sript

SELECT   b.TABLESPACE
       , b.segfile#
       , b.segblk#
       , ROUND (  (  ( b.blocks * p.VALUE ) / 1024 / 1024 ), 2 ) size_mb
       , a.SID
       , a.serial#
       , a.username
       , a.osuser
       , a.program
       , a.status
    FROM v$session a
       , v$sort_usage b
       , v$process c
       , v$parameter p
   WHERE p.NAME = 'db_block_size'
     AND a.saddr = b.session_addr
     AND a.paddr = c.addr
     and b.segfile# in ( 205,206)
ORDER BY b.TABLESPACE
       , b.segfile#
       , b.segblk#
       , b.blocks;

which helped me to find sessions using tempfile
sessions was idle, so I kill them, after that this command have no errors:

ALTER DATABASE TEMPFILE '+DATADG/p00pgp/tempfile/temp.339.882540283' DROP      INCLUDING DATAFILES;
ALTER DATABASE TEMPFILE '+DATADG/p00pgp/tempfile/temp.340.882540285' DROP      INCLUDING DATAFILES;

postgresql pgpool-II autofailover and failback

postgresql pgpool-II autofailover and failback published on Комментариев к записи postgresql pgpool-II autofailover and failback нет

Hello, try to find a good material about how-to configure pgpool and found nothing, so I’ve decide to write my own article =))

I’m recommend to read previous articles:
How to install postgres
How to configure repmgr to manage standby databases
because I use those config in this scenario

So, lets start =)

First of all lest configure OS to match our needs ( I had to use RH 6 distributive )
1. configure passwordless ssh to all nodes from root and from postgres user
2. configure passwordless sudo to allow this commands:
add to /etc/sudoers

postgres ALL=(root) NOPASSWD: /sbin/ip
postgres ALL=(root) NOPASSWD: /sbin/arping
postgres ALL=(root) NOPASSWD: /sbin/ifconfig
postgres ALL=(root) NOPASSWD: /etc/init.d/postgresql-9.5

To allow passwordless pcp commands create this file in postgres and root users:

cat $HOME/.pcppass
*:*:pgpooladmin:q1
chmod 600 .pcppass

now lets configure pgpool

start with easiest part, configure pcp.conf
to do this run pg_md5 command with password as first argument:

[postgres@pg1 ~]$ pg_md5 q1
ff33f1b12213e021c2c4a888141953ba

result add to pcp.conf with format of username:pg_md5_pass

echo "pgpooladmin:ff33f1b12213e021c2c4a888141953ba" >> pcp.conf

I’m allow connect to pgpool from whole network, to archive this I’ve add this line to pool_hba.conf

host	all		all	10.10.10.0/24	md5

next session is to configure pgpool.conf
I’ve made it from pgpool.conf.sample-stream

diff pgpool.conf.sample-stream pgpool.conf

27c27,28
< listen_addresses = 'localhost' --- > listen_addresses = ‘*’
>
65c66
< backend_hostname0 = 'host1' --- > backend_hostname0 = ‘pg1’
71c72
< backend_data_directory0 = '/data' --- > backend_data_directory0 = ‘/u01/postgres/9.5/main/pgdata’
76,80c77,89
< #backend_hostname1 = 'host2' < #backend_port1 = 5433 < #backend_weight1 = 1 < #backend_data_directory1 = '/data1' < #backend_flag1 = 'ALLOW_TO_FAILOVER' --- > backend_hostname1 = ‘pg2’
> backend_port1 = 5432
> backend_weight1 = 1
> backend_data_directory1 = ‘/u01/postgres/9.5/main/pgdata’
> backend_flag1 = ‘ALLOW_TO_FAILOVER’
>
> backend_hostname2 = ‘pg3’
> backend_port2 = 5432
> backend_weight2 = 1
> backend_data_directory2 = ‘/u01/postgres/9.5/main/pgdata’
> backend_flag2 = ‘ALLOW_TO_FAILOVER’
>
>
84c93
< enable_pool_hba = off --- > enable_pool_hba = on
120c129
< num_init_children = 32 --- > num_init_children = 300
123c132
< max_pool = 4 --- > max_pool = 1
218c227
< pid_file_name = '/var/run/pgpool/pgpool.pid' --- > pid_file_name = ‘/var/run/pgpool-II-95/pgpool.pid’
333c342
< sr_check_user = 'nobody' --- > sr_check_user = ‘repmgr’
337c346
< sr_check_password = '' --- > sr_check_password = ‘q1’
348c357
< follow_master_command = '' --- > follow_master_command = ‘/u01/postgres/9.5/main/conf/follow_master.sh %d %H %m %P %h’
367c376
< health_check_period = 0 --- > health_check_period = 5
373c382
< health_check_user = 'nobody' --- > health_check_user = ‘repmgr’
375c384
< health_check_password = '' --- > health_check_password = ‘q1’
377c386
< health_check_database = '' --- > health_check_database = ‘postgres’
379c388
< health_check_max_retries = 0 --- > health_check_max_retries = 5
381c390
< health_check_retry_delay = 1 --- > health_check_retry_delay = 5
383c392
< connect_timeout = 10000 --- > connect_timeout = 30000
394c403
< failover_command = '' --- > failover_command = ‘/u01/postgres/9.5/main/conf/failover.sh %d %H %m %P %h’
408c417,418
< failback_command = '' --- > failback_command = ‘/u01/postgres/9.5/main/conf/stb_recreate.sh %d %H %m %P %h’
> #failback_command = ”
439c449
< recovery_user = 'nobody' --- > recovery_user = ‘repmgr’
441c451
< recovery_password = '' --- > recovery_password = ‘q1’
465c475
< use_watchdog = off --- > use_watchdog = on
471c481
< trusted_servers = '' --- > trusted_servers = ‘app01,app02’
482c492
< wd_hostname = '' --- > wd_hostname = ‘pg1’
505c515
< delegate_IP = '' --- > delegate_IP = ‘10.10.10.20’
509c519
< if_cmd_path = '/sbin' --- > if_cmd_path = ‘/usr/bin’
512c522
< if_up_cmd = 'ip addr add $_IP_$/24 dev eth0 label eth0:0' --- > if_up_cmd = ‘sudo ip addr add $_IP_$/24 dev eth1 label eth1:1’
515c525
< if_down_cmd = 'ip addr del $_IP_$/24 dev eth0' --- > if_down_cmd = ‘sudo ip addr del $_IP_$/24 dev eth1:1’
518c528
< arping_path = '/usr/sbin' --- > arping_path = ‘/usr/bin’
521c531
< arping_cmd = 'arping -U $_IP_$ -w 1' --- > arping_cmd = ‘sudo arping -U $_IP_$ -w 1’
569c579
< heartbeat_destination0 = 'host0_ip1' --- > heartbeat_destination0 = ‘pg2’
586,588c596,598
< #heartbeat_destination1 = 'host0_ip2' < #heartbeat_destination_port1 = 9694 < #heartbeat_device1 = '' --- > heartbeat_destination1 = ‘pg3’
> heartbeat_destination_port1 = 9694
> heartbeat_device1 = ”
601c611
< wd_lifecheck_user = 'nobody' --- > wd_lifecheck_user = ‘pgpool’
604c614
< wd_lifecheck_password = '' --- > wd_lifecheck_password = ‘w7DeMth2oid3oYyE’
610c620
< #other_pgpool_hostname0 = 'host0' --- > other_pgpool_hostname0 = ‘pg2’
613c623
< #other_pgpool_port0 = 5432 --- > other_pgpool_port0 = 9999
616c626
< #other_wd_port0 = 9000 --- > other_wd_port0 = 9000
619,621c629,631
< #other_pgpool_hostname1 = 'host1' < #other_pgpool_port1 = 5432 < #other_wd_port1 = 9000 --- > other_pgpool_hostname1 = ‘p01db03’
> other_pgpool_port1 = 9999
> other_wd_port1 = 9000

[свернуть]

in my configuration I use trusted servers ( app servers ) you may leave it blank, also there was 3 node config ( for quorum) but in my test stand I use only two stands for one datacenter.

Key thig here is to keep first part of this file the same on all host ( where backend_hostname defenition is described )

copy config to second node:

scp  /etc/pgpool-II-95/* pg2:/etc/pgpool-II-95/

modify:
wd_hostname to second node
heartbeat_destination0 to first node
other_pgpool_hostname0 to first node

if you have any problems start pgpool in foreground mode ( also can be usefull to enable debug )
pgpool -f /etc/pgpool-II-95/pgpool.conf -n -d

usefull commands:
check node status
I use connect to VIP ip and port 9999

psql -U repmgr -d postgres -p 9999 -h 10.10.10.20 -c "show pool_nodes"
 node_id | hostname | port | status | lb_weight |  role   | select_cnt
---------+----------+------+--------+-----------+---------+------------
 0       | pg1      | 5432 | 2      | 0.500000  | primary | 0
 1       | pg2      | 5432 | 2      | 0.500000  | standby | 0 

scripts ( check that they are executable or add chmod +x /u01/postgres/9.5/main/conf/*.sh )

follow_master.sh

[code language=”bash”]
#!/bin/sh
failed_node=$1
new_master=$2
new_master_id=$3
old_primary=$4
cur_hostname=$5 #%h = host name
(
date
echo "Failed node: $failed_node"
echo "New_master: $new_master"
echo "New_master_id: $new_master_id"
echo "Old_primary: $old_primary"
echo "cur_hostname: $cur_hostname"

set -x
if [ $new_master_id -eq -1 ]; then echo "smth wrong" ; exit 1; fi

if [ $UID -eq 0 ]
then su postgres -c "/usr/pgsql-9.5/bin/repmgr -f /u01/postgres/9.5/main/conf/repmgr.conf -D $PGDATA -h $new_master -U repmgr -d postgres standby follow"
else /usr/pgsql-9.5/bin/repmgr -f /u01/postgres/9.5/main/conf/repmgr.conf -D $PGDATA -h $new_master -U repmgr -d postgres standby follow
fi
exit 0;
) 2>&1 | tee -a /tmp/pgpool_failover.log
[/code]

[свернуть]

failover.sh

[code language=”bash”]
#!/bin/sh
failed_node=$1
new_master=$2
new_master_id=$3
old_primary=$4
cur_hostname=$5 #%h = host name
(
date
echo "Failed node: $failed_node"
echo "New_master: $new_master"
echo "New_master_id: $new_master_id"
echo "Old_primary: $old_primary"
echo "cur_hostname: $cur_hostname"

set -x
if [ $new_master_id -eq -1 ]; then echo "smth wrong" ; exit 1; fi

if [ $UID -eq 0 ]
then su postgres -c "/usr/bin/ssh -T -l postgres $new_master \"/usr/pgsql-9.5/bin/repmgr -f /u01/postgres/9.5/main/conf/repmgr.conf standby promote 2>/dev/null 1>/dev/null <&-\" "
else /usr/bin/ssh $new_master "/usr/pgsql-9.5/bin/repmgr -f /u01/postgres/9.5/main/conf/repmgr.conf standby promote 2>/dev/null 1>/dev/null <&-"
fi
sleep 5
if [ $UID -eq 0 ]
then su postgres -c "/usr/bin/ssh -T -l postgres $new_master \"pcp_attach_node -p 9898 -U pgpooladmin -w -n $new_master_id\""
else /usr/bin/ssh -T -l postgres $new_master "/usr/bin/ssh -T -l postgres $new_master \"pcp_attach_node -p 9898 -U pgpooladmin -w -n $new_master_id\""
fi
exit 0;
) 2>&1 | tee -a /tmp/pgpool_failover.log
[/code]

[свернуть]
stb_recreate.sh

[code language=”bash”]
#!/bin/sh
failed_node=$1
new_master=$2
new_master_id=$3
old_primary=$4
cur_hostname=$5 #%h = host name
repmgr_conf=/u01/postgres/9.5/main/conf/repmgr.conf
(
date
echo "Failed node: $failed_node"
echo "New_master: $new_master"
echo "New_master_id: $new_master_id"
echo "Old_primary: $old_primary"
echo "cur_hostname: $cur_hostname"

set -x
if [ $new_master_id -eq -1 ]; then echo "smth wrong" ; exit 1; fi

if [ $UID -eq 0 ]
then su postgres -c "
/usr/pgsql-9.5/bin/repmgr -c -h $master_node -d postgres -U repmgr -D $PGDATA -f $repmgr_conf standby clone
sudo /etc/init.d/postgresql-9.5 start
/usr/pgsql-9.5/bin/repmgr -f $repmgr_conf standby register -F
sleep 15
pcp_attach_node -h localhost -U pgpooladmin -w -n 1
"
else
/usr/pgsql-9.5/bin/pg_ctl -m fast stop
mv $PGDATA "$(echo $PGDATA)_$(echo `date +%H:%M_%d%m%Y`)"
/usr/pgsql-9.5/bin/repmgr -c -h $new_master -d postgres -U repmgr -D $PGDATA -f $repmgr_conf standby clone
sudo /etc/init.d/postgresql-9.5 start
/usr/pgsql-9.5/bin/repmgr -f $repmgr_conf standby register -F
sleep 15
pcp_attach_node -h localhost -U pgpooladmin -w -n 1

fi
exit 0;
) 2>&1 | tee -a /tmp/pgpool_recreate.log
[/code]

[свернуть]

postgresql repmgr how-to

postgresql repmgr how-to published on 1 комментарий к записи postgresql repmgr how-to

For better result you should install database by this document
how-to install postgres database

i have 4 node config, 2 nodes in one datacenter and 2 in other

config will look like this:

DR1     DR2
DB01--->DB11
|       |
 \_DB02  \_DB12

create config file:

node1 /u01/postgres/9.5/main/conf/repmgr.conf

node=1
cluster=db_cluster
node_name=pg1
conninfo='host=pg01 user=repmgr dbname=postgres password=q1'
pg_bindir=/usr/pgsql-9.5/bin/
master_response_timeout=5
reconnect_attempts=2
reconnect_interval=2
failover=manual
promote_command='/usr/pgsql-9.5/bin/repmgr standby promote -f /u01/postgres/9.5/main/conf/repmgr.conf'
follow_command='/usr/pgsql-9.5/bin/repmgr standby follow -f /u01/postgres/9.5/main/conf/repmgr.conf'
use_replication_slots=1

node2 /u01/postgres/9.5/main/conf/repmgr.conf

node=2
cluster=db_cluster
node_name=pg2
conninfo='host=pg02 user=repmgr dbname=postgres password=q1'
pg_bindir=/usr/pgsql-9.5/bin/
master_response_timeout=5
reconnect_attempts=2
reconnect_interval=2
failover=manual
promote_command='/usr/pgsql-9.5/bin/repmgr standby promote -f /u01/postgres/9.5/main/conf/repmgr.conf'
follow_command='/usr/pgsql-9.5/bin/repmgr standby follow -f /u01/postgres/9.5/main/conf/repmgr.conf'
use_replication_slots=1

node3 /u01/postgres/9.5/main/conf/repmgr.conf

node=3
cluster=db_cluster
node_name=pg3
conninfo='host=pg03 user=repmgr dbname=postgres password=q1'
pg_bindir=/usr/pgsql-9.5/bin/
master_response_timeout=5
reconnect_attempts=2
reconnect_interval=2
failover=manual
promote_command='/usr/pgsql-9.5/bin/repmgr standby promote -f /u01/postgres/9.5/main/conf/repmgr.conf'
follow_command='/usr/pgsql-9.5/bin/repmgr standby follow -f /u01/postgres/9.5/main/conf/repmgr.conf'
use_replication_slots=1

node4 /u01/postgres/9.5/main/conf/repmgr.conf

node=4
cluster=db_cluster
node_name=pg4
conninfo='host=pg04 user=repmgr dbname=postgres password=q1'
pg_bindir=/usr/pgsql-9.5/bin/
master_response_timeout=5
reconnect_attempts=2
reconnect_interval=2
failover=manual
promote_command='/usr/pgsql-9.5/bin/repmgr standby promote -f /u01/postgres/9.5/main/conf/repmgr.conf'
follow_command='/usr/pgsql-9.5/bin/repmgr standby follow -f /u01/postgres/9.5/main/conf/repmgr.conf'
use_replication_slots=1
upstream_node=3

also we need to setup passwordless auth of repmgr user
create .pgpass file in postgres user home directory with 0600 premissions:

All nodes:

cat ~/.pgpass
*:*:*:repmgr:q1
chmod 600 ~/.pgpass

create repmgr user

createuser -s repmgr

also we need to allow repmgr to connect to database with replication role
add this lines to your pg_hba.conf file on all nodes:

cat /u01/postgres/9.5/main/conf/pg_hba.conf | tail -3

local   replication,postgres        repmgr                             trust
host    replicatoin,postgres        repmgr      127.0.0.1/32           trust
host    replication,postgres        repmgr      10.10.10.0/24        md5

Here I’m allowed to connect from all network, but if you want, you can limit this by certain machines.

Next step is configure repmgr

Create Master:

[postgres@pg1 ~]$  /usr/pgsql-9.5/bin/repmgr -f /u01/postgres/9.5/main/conf/repmgr.conf master register
[2016-12-05 19:06:36] [NOTICE] master node correctly registered for cluster db_cluster with id 1 (conninfo: host=pg1 user=repmgr dbname=postgres password=q1)

create standbys
on host pg2 and pg3:

/usr/pgsql-9.5/bin/repmgr  -c -h pg1 -d postgres -U repmgr -D $PGDATA -f /u01/postgres/9.5/main/conf/repmgr.conf standby clone

start standby:

 pg_ctl start -o "-c config_file=/u01/postgres/9.5/main/conf/postgresql.conf"

and register standby:

/usr/pgsql-9.5/bin/repmgr -f /u01/postgres/9.5/main/conf/repmgr.conf standby register

create last standby ( which is going to be cascade standby ) and we are create this standby from PG3 database

/usr/pgsql-9.5/bin/repmgr  -c -h pg3 -d postgres -U repmgr -D $PGDATA -f /u01/postgres/9.5/main/conf/repmgr.conf standby clone

start and register database:

pg_ctl start -o "-c config_file=/u01/postgres/9.5/main/conf/postgresql.conf"
/usr/pgsql-9.5/bin/repmgr -f /u01/postgres/9.5/main/conf/repmgr.conf standby register

final result is

postgres=# select * from repmgr_db_cluster.repl_nodes ;
 id |  type   | upstream_node_id |  cluster   | name |                            conninfo                            |   slot_name   | priority | active
----+---------+------------------+------------+------+----------------------------------------------------------------+---------------+----------+--------
  1 | master  |                  | db_cluster | pg1  | host=pg1 user=repmgr dbname=postgres password=xxxxxxxxxxxxxxxx | repmgr_slot_1 |      100 | t
  2 | standby |                1 | db_cluster | pg2  | host=pg2 user=repmgr dbname=postgres password=xxxxxxxxxxxxxxxx | repmgr_slot_2 |      100 | t
  3 | standby |                1 | db_cluster | pg3  | host=pg3 user=repmgr dbname=postgres password=xxxxxxxxxxxxxxxx | repmgr_slot_3 |      100 | t
  4 | standby |                3 | db_cluster | pg4  | host=pg4 user=repmgr dbname=postgres password=xxxxxxxxxxxxxxxx | repmgr_slot_4 |      100 | t

postgresql install how-to

postgresql install how-to published on 2 комментария к записи postgresql install how-to

I will split material of how-to install pgpool on several logical parts
here is the first one:

start install postgres with packages:

yum install  postgresql95-devel postgresql95 postgresql95-test postgresql95-libs postgresql95-server postgresql95-contrib pgbouncer.x86_64 repmgr95* pgpool-II-95 pgpool-II-95-extensions

for 9.6

yum install  postgresql96-devel postgresql96 postgresql96-test postgresql96-libs postgresql96-server postgresql96-contrib pgbouncer.x86_64 repmgr96*

for 10

yum install  postgresql10-devel postgresql10 postgresql10-test postgresql10-libs postgresql10-server postgresql10-contrib pgbouncer.x86_64 

create directories and change home directory of postgres user:

mkdir /var/log/postgres
chown postgres: /var/log/postgres


usermod -m -d /u01 postgres
chown postgres: /u01 -R
su - postgres
cp /etc/skel/.bash* $HOME
mkdir -p /u01/postgres/main/pgdata/
mkdir -p /u01/postgres/main/pgdatats/
mkdir -p /u01/postgres/main/recovery
mkdir -p /u01/postgres/main/conf
mkdir /u01/postgres/main/recovery/backup
mkdir /u01/postgres/main/recovery/walarchive
mkdir /u01/postgres/main/recovery/dmp

configure bash_profile:

echo "export PGDATA=/u01/postgres/main/pgdata ">> ~/.bash_profile
echo "export PGTBS=/u01/postgres/main/pgdatats ">> ~/.bash_profile
echo "export PGCFG=/u01/postgres/main/conf ">> ~/.bash_profile

echo "export HISTTIMEFORMAT='%Y-%m-%d %H:%M:%S ' ">> ~/.bash_profile
echo "export HISTFILESIZE=9000 ">> ~/.bash_profile
echo "export PROMPT_COMMAND='history -a' ">> ~/.bash_profile
echo "export PS1='\[\e]0;\u@\h: \w\a\][\u@\h \W]$ ' ">> ~/.bash_profile

create dummy database:

/usr/pgsql-9.5/bin/initdb  --locale=ru_RU.utf8 --data-checksums

configure init scripts ( or systemd daemon ) to work with our external config directory:
RH6:

/etc/init.d/postgresql-9.5
PGDATA=/u01/postgres/main/pgdata
PGOPTS="-c config_file=/u01/postgres/main/conf/postgresql.conf"

RH7:

vim /usr/lib/systemd/system/postgresql-9.5.service
# Note: changing PGDATA will typically require adjusting SELinux
# Note: do not use a PGDATA pathname containing spaces, or you will
Environment=PGDATA=/u01/postgres/main/pgdata
Environment=PGCONF=/u01/postgres/main/conf
ExecStartPre=/usr/pgsql-10/bin/postgresql-10-check-db-dir ${PGDATA}
ExecStart=/usr/pgsql-10/bin/postmaster -D ${PGDATA} -c config_file=${PGCONF}/postgresql.conf

don’t forget about:

systemctl daemon-reload

Create starter database:

/usr/pgsql-9.5/bin/initdb --lc-collate=ru_RU.UTF8 --locale=en_US.UTF8 --encoding=UTF8
/usr/pgsql-9.5/bin/pg_ctl stop

Move config file /u01/postgres/main/conf/postgresql.conf to $PGCFG directory and modify it :

data_directory='/u01/postgres/main/pgdata'
hba_file='/u01/postgres/main/conf/pg_hba.conf'
ident_file='/u01/postgres/main/conf/pg_ident.conf'

enable database startup:

chkconfig postgresql-9.5 on
cat postgresql.conf | egrep -v (^#|^s*$|^s* *#)

[code]
data_directory=’/u01/postgres/main/pgdata’
hba_file=’/u01/postgres/main/conf/pg_hba.conf’
ident_file=’/u01/postgres/main/conf/pg_ident.conf’
listen_addresses = ‘*’ # what IP address(es) to listen on;
max_connections = 500 # (change requires restart)
shared_buffers = 8GB # min 128kB
work_mem = 64MB # min 64kB
maintenance_work_mem = 2GB # min 1MB
dynamic_shared_memory_type = posix # the default is the first option
wal_level = hot_standby # minimal, archive, hot_standby, or logical
max_wal_size = 3GB
min_wal_size = 1GB
checkpoint_completion_target = 0.9 # checkpoint target duration, 0.0 – 1.0
archive_mode = on # enables archiving; off, on, or always
archive_command = ‘cp -i %p /u01/postgres/main/recovery/walarchive/%f < /dev/null’ # command to use to archive a logfile segment
max_wal_senders = 4 # max number of walsender processes
max_replication_slots = 4 # max number of replication slots
hot_standby = on # "on" allows queries during recovery
hot_standby_feedback = on # send info from standby to prevent
effective_cache_size = 24GB
log_destination = ‘stderr’ # Valid values are combinations of
logging_collector = on # Enable capturing of stderr and csvlog
log_directory = ‘/var/log/postgres’ # directory where log files are written,
log_filename = ‘postgresql-%Y-%m-%d.log’ # log file name pattern,
log_truncate_on_rotation = on # If on, an existing log file with the
log_rotation_age = 1d # Automatic rotation of logfiles will
log_rotation_size = 0 # Automatic rotation of logfiles will
log_min_duration_statement = 300 # -1 is disabled, 0 logs all statements
log_checkpoints = on
log_connections = on
log_disconnections = on
log_line_prefix = ‘%t [%p]: [%l-1] db=%d,appname=%q,user=%u,client=%h’ # special values:
log_statement = ‘ddl’ # none, ddl, mod, all
log_temp_files = 0 # log temporary files equal or larger
log_timezone = ‘Europe/Moscow’
cluster_name = ‘p00nrd’ # added to process titles if nonempty
track_io_timing = on
autovacuum_vacuum_scale_factor = 0.02 # fraction of table size before vacuum
autovacuum_analyze_scale_factor = 0.01 # fraction of table size before analyze
autovacuum_vacuum_cost_delay = 30ms # default vacuum cost delay for
datestyle = ‘iso, mdy’
timezone = ‘Europe/Moscow’
lc_messages = ‘en_US.UTF8’ # locale for system error message
lc_monetary = ‘en_US.UTF8’ # locale for monetary formatting
lc_numeric = ‘en_US.UTF8’ # locale for number formatting
lc_time = ‘en_US.UTF8’ # locale for time formatting
default_text_search_config = ‘pg_catalog.english’
shared_preload_libraries = ‘pg_stat_statements’ # (change requires restart)
pg_stat_statements.max=10000
pg_stat_statements.track=top
pg_stat_statements.track_utility=off
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