PG11的配置文件解析

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一、公司PG11




二、postgresql.conf

postgresql.conf


listen_addresses = '0.0.0.0'            # what IP address(es) to listen on;
port = 1921                             # (change requires restart)
max_connections = 20000                 # (change requires restart)
superuser_reserved_connections = 13     # (change requires restart)
unix_socket_directories = '.'   # comma-separated list of directories
                                        # (change requires restart)
#unix_socket_group = ''                 # (change requires restart)
unix_socket_permissions = 0700          # begin with 0 to use octal notation
                                        # (change requires restart)
shared_buffers = 192GB                  # min 128kB
work_mem = 10MB                         # min 64kB
maintenance_work_mem = 10240MB          # min 1MB
#max_stack_depth = 2MB                  # min 100kB
shared_preload_libraries = 'pg_stat_statements'         # (change requires restart)

# - Cost-Based Vacuum Delay -

#vacuum_cost_page_hit = 1               # 0-10000 credits
#vacuum_cost_page_miss = 10             # 0-10000 credits
#vacuum_cost_page_dirty = 20            # 0-10000 credits
vacuum_cost_limit = 10000               # 1-10000 credits

# - Background Writer -

bgwriter_delay = 10ms                   # 10-10000ms between rounds
#bgwriter_lru_multiplier = 2.0          # 0-10.0 multipler on buffers scanned/round
wal_level = hot_standby                 # minimal, archive, or hot_standby
                                        # (change requires restart)
#fsync = on                             # turns forced synchronization on or off
synchronous_commit = off                # synchronization level;
                                        # off, local, remote_write, or on
#wal_sync_method = fsync                # the default is the first option
                                        # supported by the operating system:
                                        #   open_datasync
                                        #   fdatasync (default on Linux)
                                        #   fsync
                                        #   fsync_writethrough
                                        #   open_sync
#full_page_writes = on                  # recover from partial page writes
wal_buffers = 16384kB                   # min 32kB, -1 sets based on shared_buffers
                                        # (change requires restart)
wal_writer_delay = 10ms         # 1-10000 milliseconds
archive_mode = on               # allows archiving to be done
                                # (change requires restart)
archive_command = 'DIR=/data/arch/`date +%F`; test ! -d $DIR && mkdir -p $DIR; chmod 755 $DIR; test ! -f $DIR/%f && cp %p $DIR/%f; chmod 755 $DIR/%f'          # command to use to archive a logfile segment
#archive_command = '/bin/true'           # command to use to archive a logfile segment
                                # placeholders: %p = path of file to archive
                                #               %f = file name only
                                # e.g. 'test ! -f /mnt/server/archivedir/%f && cp %p /mnt/server/archivedir/%f'
#archive_timeout = 0            # force a logfile segment switch after this
                                # number of seconds; 0 disables
max_wal_senders = 32            # max number of walsender processes
                                # (change requires restart)
#wal_sender_timeout = 60s       # in milliseconds; 0 disables

# - Master Server -

# These settings are ignored on a standby server.

#synchronous_standby_names = '' # standby servers that provide sync rep
                                # comma-separated list of application_name
                                # from standby(s); '*' = all
#vacuum_defer_cleanup_age = 0   # number of xacts by which cleanup is delayed

# - Standby Servers -

# These settings are ignored on a master server.

hot_standby = on                        # "on" allows queries during recovery
                                        # (change requires restart)
max_standby_archive_delay = 300s        # max delay before canceling queries
                                        # when reading WAL from archive;
                                        # -1 allows indefinite delay
max_standby_streaming_delay = 300s      # max delay before canceling queries
                                        # when reading streaming WAL;
                                        # -1 allows indefinite delay
wal_receiver_status_interval = 1s       # send replies at least this often
                                        # 0 disables
hot_standby_feedback = on               # send info from standby to prevent
                                        # query conflicts
#wal_receiver_timeout = 60s             # time that receiver waits for
                                        # communication from master
                                        # in milliseconds; 0 disables
effective_cache_size = 400GB
log_destination = 'csvlog'              # Valid values are combinations of
logging_collector = on                  # Enable capturing of stderr and csvlog
log_directory = 'pg_log'                # directory where log files are written,
log_filename = 'postgresql-%Y-%m-%d_%H%M%S.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 = 1024MB                   # Automatic rotation of logfiles will
log_min_duration_statement = 1s # -1 is disabled, 0 logs all statements
log_checkpoints = on
log_connections = on
log_disconnections = on
#log_duration = off
log_error_verbosity = verbose           # terse, default, or verbose messages
#log_hostname = off
log_line_prefix = '< %m >'                      # special values:
log_lock_waits = on                     # log lock waits >= deadlock_timeout
log_statement = 'all'                   # none, ddl, mod, all
#log_temp_files = -1                    # log temporary files equal or larger
                                        # than the specified size in kilobytes;
                                        # -1 disables, 0 logs all temp files
log_timezone = 'Asia/Shanghai'
autovacuum = on                 # Enable autovacuum subprocess?  'on'
                                        # requires track_counts to also be on.
log_autovacuum_min_duration = 0 # -1 disables, 0 logs all actions and
                                        # their durations, > 0 logs only
                                        # actions running at least this number
datestyle = 'iso, mdy'
#intervalstyle = 'postgres'
timezone = 'PRC'
lc_messages = 'C'                       # locale for system error message
                                        # strings
lc_monetary = 'C'                       # locale for monetary formatting
lc_numeric = 'C'                        # locale for number formatting
lc_time = 'C'                           # locale for time formatting
 
# default configuration for text search
default_text_search_config = 'pg_catalog.english'
####add by cstech for pg11 ####
tcp_keepalives_idle = 5
tcp_keepalives_interval = 5
tcp_keepalives_count = 3
max_prepared_transactions=20000
vacuum_cost_delay=2
bgwriter_lru_maxpages=1000
wal_compression=on
temp_file_limit=20GB
autovacuum_max_workers=10
autovacuum_vacuum_threshold=500
autovacuum_analyze_threshold=500
autovacuum_vacuum_cost_delay=2ms
lock_timeout=600000
track_io_timing=on
track_functions=all
pg_stat_statements.max=10000
pg_stat_statements.track = all
max_wal_size = 50GB
min_wal_size = 4GB
wal_keep_segments=3200
wal_log_hints=on
full_page_writes=on
track_activity_query_size = 4096
checkpoint_completion_target = 0.1
huge_pages = on



三、recovery.conf


#restore_command = 'scp root@172.31.205.159:/data/nfs_storage/coupon/arch_primary/%f %p'                                                           
standby_mode = 'on'
#recovery_target_timeline = 'latest'
recovery_target_timeline = 'latest'
primary_conninfo = 'application_name=172.25.113.102 host=172.21.13.101 port=1921 user=replica password=PostGRESQL.replica keepalives_idle=60' 




四、postgres用户环境变量


# .bash_profile
# Get the aliases and functions
if [ -f ~/.bashrc ]; then

. ~/.bashrc

fi
# User specific environment and startup programs
PATH=$PATH:$HOME/.local/bin:$HOME/bin
export PATH
export PS1="[`whoami`@`hostname`:"'$PWD]$'
export PGPORT=1921
export PGDATA=/data/postgres/pgdata
export LANG=en_US.utf8
export PGHOME=/usr/pgsql-11/
export LD_LIBRARY_PATH=$PGHOME/lib:/lib64:/usr/lib64:/usr/local/lib64:/lib:/usr/lib:/usr/local/lib:$LD_LIBRARY_PATH
export DATE=`date +"%Y%m%d%H%M"`
export PATH=$PGHOME/bin:$PATH:.
export MANPATH=$PGHOME/share/man:$MANPATH
export PGHOST=$PGDATA
export PGDATABASE=postgres
alias ll="ls -l"




五、补充