Re: BUG #2446: FATAL: Could not write to statistics collector

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Stephen <jleelim(at)hotmail(dot)com>
Cc: pgsql-bugs(at)postgresql(dot)org
Subject: Re: BUG #2446: FATAL: Could not write to statistics collector
Date: 2006-05-22 00:49:46
Message-ID: 200605220049.k4M0nkW02722@candle.pha.pa.us
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We are putting out an 8.1.4 release in the next week that will fix this
problem --- please keep an eye out for it.

---------------------------------------------------------------------------

Stephen wrote:
>
> The following bug has been logged online:
>
> Bug reference: 2446
> Logged by: Stephen
> Email address: jleelim(at)hotmail(dot)com
> PostgreSQL version: 8.1.3
> Operating system: Windows Server 2003
> Description: FATAL: Could not write to statistics collector pipe.
> Details:
>
> I'm getting this error in my logs on all of my servers running Windows 2003
> with all the latest service pack installed.
>
> FATAL could not read from statistics collector pipe: no error
>
> LOG statistics collector process (PID 5732) was terminated by signal 1
>
> FATAL: Could not write to statistics collector pipe.
>
> LOG: could not receive data from client: No connection could be made because
> the target machine actively refused it.
>
> I don't know if the last error had anything to do with it. What could be
> causing the problem?
>
>
> I'm attaching the postgresql.conf file below
> --------------------------------------------
>
> # -----------------------------
> # PostgreSQL configuration file
> # -----------------------------
> #
> # This file consists of lines of the form:
> #
> # name = value
> #
> # (The '=' is optional.) White space may be used. Comments are introduced
> # with '#' anywhere on a line. The complete list of option names and
> # allowed values can be found in the PostgreSQL documentation. The
> # commented-out settings shown in this file represent the default values.
> #
> # Please note that re-commenting a setting is NOT sufficient to revert it
> # to the default value, unless you restart the postmaster.
> #
> # Any option can also be given as a command line switch to the
> # postmaster, e.g. 'postmaster -c log_connections=on'. Some options
> # can be changed at run-time with the 'SET' SQL command.
> #
> # This file is read on postmaster startup and when the postmaster
> # receives a SIGHUP. If you edit the file on a running system, you have
> # to SIGHUP the postmaster for the changes to take effect, or use
> # "pg_ctl reload". Some settings, such as listen_addresses, require
> # a postmaster shutdown and restart to take effect.
>
>
> #---------------------------------------------------------------------------
>
> # FILE LOCATIONS
> #---------------------------------------------------------------------------
>
>
> # The default values of these variables are driven from the -D command line
> # switch or PGDATA environment variable, represented here as ConfigDir.
>
> #data_directory = 'ConfigDir' # use data in another directory
> #hba_file = 'ConfigDir/pg_hba.conf' # host-based authentication file
> #ident_file = 'ConfigDir/pg_ident.conf' # IDENT configuration file
>
> # If external_pid_file is not explicitly set, no extra pid file is written.
> #external_pid_file = '(none)' # write an extra pid file
>
>
> #---------------------------------------------------------------------------
>
> # CONNECTIONS AND AUTHENTICATION
> #---------------------------------------------------------------------------
>
>
> # - Connection Settings -
>
> listen_addresses = '*' # what IP address(es) to listen on;
> # comma-separated list of addresses;
> # defaults to 'localhost', '*' = all
> port = 5432
> max_connections = 100
> # note: increasing max_connections costs ~400 bytes of shared memory per
> # connection slot, plus lock space (see max_locks_per_transaction). You
> # might also need to raise shared_buffers to support more connections.
> #superuser_reserved_connections = 2
> #unix_socket_directory = ''
> #unix_socket_group = ''
> #unix_socket_permissions = 0777 # octal
> #bonjour_name = '' # defaults to the computer name
>
> # - Security & Authentication -
>
> #authentication_timeout = 60 # 1-600, in seconds
> #ssl = off
> #password_encryption = on
> #db_user_namespace = off
>
> # Kerberos
> #krb_server_keyfile = ''
> #krb_srvname = 'postgres'
> #krb_server_hostname = '' # empty string matches any keytab entry
> #krb_caseins_users = off
>
> # - TCP Keepalives -
> # see 'man 7 tcp' for details
>
> #tcp_keepalives_idle = 0 # TCP_KEEPIDLE, in seconds;
> # 0 selects the system default
> #tcp_keepalives_interval = 0 # TCP_KEEPINTVL, in seconds;
> # 0 selects the system default
> #tcp_keepalives_count = 0 # TCP_KEEPCNT;
> # 0 selects the system default
>
>
> #---------------------------------------------------------------------------
>
> # RESOURCE USAGE (except WAL)
> #---------------------------------------------------------------------------
>
>
> # - Memory -
>
> shared_buffers = 30000 # min 16 or max_connections*2, 8KB each
> #temp_buffers = 1000 # min 100, 8KB each
> #max_prepared_transactions = 5 # can be 0 or more
> # note: increasing max_prepared_transactions costs ~600 bytes of shared
> memory
> # per transaction slot, plus lock space (see max_locks_per_transaction).
> work_mem = 8192 # min 64, size in KB
> #maintenance_work_mem = 16384 # min 1024, size in KB
> #max_stack_depth = 2048 # min 100, size in KB
>
> # - Free Space Map -
>
> max_fsm_pages = 500000 # min max_fsm_relations*16, 6 bytes each
> #max_fsm_relations = 1000 # min 100, ~70 bytes each
>
> # - Kernel Resource Usage -
>
> #max_files_per_process = 1000 # min 25
> #preload_libraries = ''
>
> # - Cost-Based Vacuum Delay -
>
> vacuum_cost_delay = 100 # 0-1000 milliseconds
> #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 = 100 # 0-10000 credits
>
> # - Background writer -
>
> #bgwriter_delay = 200 # 10-10000 milliseconds between rounds
> #bgwriter_lru_percent = 1.0 # 0-100% of LRU buffers scanned/round
> #bgwriter_lru_maxpages = 5 # 0-1000 buffers max written/round
> #bgwriter_all_percent = 0.333 # 0-100% of all buffers scanned/round
> #bgwriter_all_maxpages = 5 # 0-1000 buffers max written/round
>
>
> #---------------------------------------------------------------------------
>
> # WRITE AHEAD LOG
> #---------------------------------------------------------------------------
>
>
> # - Settings -
>
> #fsync = on # turns forced synchronization on or off
> #wal_sync_method = fsync # the default is the first option
> # supported by the operating system:
> # open_datasync
> # fdatasync
> # fsync
> # fsync_writethrough
> # open_sync
> #full_page_writes = on # recover from partial page writes
> wal_buffers = 256 # min 4, 8KB each
> #commit_delay = 0 # range 0-100000, in microseconds
> #commit_siblings = 5 # range 1-1000
>
> # - Checkpoints -
>
> checkpoint_segments = 32 # in logfile segments, min 1, 16MB each
> #checkpoint_timeout = 300 # range 30-3600, in seconds
> #checkpoint_warning = 30 # in seconds, 0 is off
>
> # - Archiving -
>
> #archive_command = '' # command to use to archive a logfile
> # segment
>
>
> #---------------------------------------------------------------------------
>
> # QUERY TUNING
> #---------------------------------------------------------------------------
>
>
> # - Planner Method Configuration -
>
> #enable_bitmapscan = on
> #enable_hashagg = on
> #enable_hashjoin = on
> #enable_indexscan = on
> #enable_mergejoin = on
> #enable_nestloop = on
> #enable_seqscan = on
> #enable_sort = on
> #enable_tidscan = on
>
> # - Planner Cost Constants -
>
> effective_cache_size = 32000 # typically 8KB each
> #random_page_cost = 4 # units are one sequential page fetch
> # cost
> #cpu_tuple_cost = 0.01 # (same)
> #cpu_index_tuple_cost = 0.001 # (same)
> #cpu_operator_cost = 0.0025 # (same)
>
> # - Genetic Query Optimizer -
>
> #geqo = on
> #geqo_threshold = 12
> #geqo_effort = 5 # range 1-10
> #geqo_pool_size = 0 # selects default based on effort
> #geqo_generations = 0 # selects default based on effort
> #geqo_selection_bias = 2.0 # range 1.5-2.0
>
> # - Other Planner Options -
>
> #default_statistics_target = 10 # range 1-1000
> #constraint_exclusion = off
> #from_collapse_limit = 8
> #join_collapse_limit = 8 # 1 disables collapsing of explicit
> # JOINs
>
>
> #---------------------------------------------------------------------------
>
> # ERROR REPORTING AND LOGGING
> #---------------------------------------------------------------------------
>
>
> # - Where to Log -
>
> log_destination = 'stderr' # Valid values are combinations of
> # stderr, syslog and eventlog,
> # depending on platform.
>
> # This is used when logging to stderr:
> redirect_stderr = on # Enable capturing of stderr into log
> # files
>
> # These are only used if redirect_stderr is on:
> #log_directory = 'pg_log' # Directory where log files are written
> # Can be absolute or relative to PGDATA
> #log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log' # Log file name pattern.
> # Can include strftime() escapes
> #log_truncate_on_rotation = off # If on, any existing log file of the same
> # name as the new log file will be
> # truncated rather than appended to. But
> # such truncation only occurs on
> # time-driven rotation, not on restarts
> # or size-driven rotation. Default is
> # off, meaning append to existing files
> # in all cases.
> #log_rotation_age = 1440 # Automatic rotation of logfiles will
> # happen after so many minutes. 0 to
> # disable.
> #log_rotation_size = 10240 # Automatic rotation of logfiles will
> # happen after so many kilobytes of log
> # output. 0 to disable.
>
> # These are relevant when logging to syslog:
> #syslog_facility = 'LOCAL0'
> #syslog_ident = 'postgres'
>
>
> # - When to Log -
>
> #client_min_messages = notice # Values, in order of decreasing detail:
> # debug5
> # debug4
> # debug3
> # debug2
> # debug1
> # log
> # notice
> # warning
> # error
>
> #log_min_messages = notice # Values, in order of decreasing detail:
> # debug5
> # debug4
> # debug3
> # debug2
> # debug1
> # info
> # notice
> # warning
> # error
> # log
> # fatal
> # panic
>
> #log_error_verbosity = default # terse, default, or verbose messages
>
> #log_min_error_statement = panic # Values in order of increasing severity:
> # debug5
> # debug4
> # debug3
> # debug2
> # debug1
> # info
> # notice
> # warning
> # error
> # panic(off)
>
> #log_min_duration_statement = -1 # -1 is disabled, 0 logs all statements
> # and their durations, in milliseconds.
>
> #silent_mode = off # DO NOT USE without syslog or
> # redirect_stderr
>
> # - What to Log -
>
> #debug_print_parse = off
> #debug_print_rewritten = off
> #debug_print_plan = off
> #debug_pretty_print = off
> #log_connections = off
> #log_disconnections = off
> #log_duration = off
> log_line_prefix = '%t ' # Special values:
> # %u = user name
> # %d = database name
> # %r = remote host and port
> # %h = remote host
> # %p = PID
> # %t = timestamp (no milliseconds)
> # %m = timestamp with milliseconds
> # %i = command tag
> # %c = session id
> # %l = session line number
> # %s = session start timestamp
> # %x = transaction id
> # %q = stop here in non-session
> # processes
> # %% = '%'
> # e.g. '<%u%%%d> '
> #log_statement = 'none' # none, mod, ddl, all
> #log_hostname = off
>
>
> #---------------------------------------------------------------------------
>
> # RUNTIME STATISTICS
> #---------------------------------------------------------------------------
>
>
> # - Statistics Monitoring -
>
> #log_parser_stats = off
> #log_planner_stats = off
> #log_executor_stats = off
> #log_statement_stats = off
>
> # - Query/Index Statistics Collector -
>
> stats_start_collector = on
> #stats_command_string = off
> #stats_block_level = off
> stats_row_level = on
> #stats_reset_on_server_start = off
>
>
> #---------------------------------------------------------------------------
>
> # AUTOVACUUM PARAMETERS
> #---------------------------------------------------------------------------
>
>
> autovacuum = on # enable autovacuum subprocess?
> #autovacuum_naptime = 60 # time between autovacuum runs, in secs
> autovacuum_vacuum_threshold = 2000 # min # of tuple updates before
> # vacuum
> autovacuum_analyze_threshold = 1000 # min # of tuple updates before
> # analyze
> autovacuum_vacuum_scale_factor = 0.05 # fraction of rel size before
> # vacuum
> autovacuum_analyze_scale_factor = 0.01 # fraction of rel size before
> # analyze
> #autovacuum_vacuum_cost_delay = -1 # default vacuum cost delay for
> # autovac, -1 means use
> # vacuum_cost_delay
> #autovacuum_vacuum_cost_limit = -1 # default vacuum cost limit for
> # autovac, -1 means use
> # vacuum_cost_limit
>
>
> #---------------------------------------------------------------------------
>
> # CLIENT CONNECTION DEFAULTS
> #---------------------------------------------------------------------------
>
>
> # - Statement Behavior -
>
> #search_path = '$user,public' # schema names
> #default_tablespace = '' # a tablespace name, '' uses
> # the default
> #check_function_bodies = on
> #default_transaction_isolation = 'read committed'
> #default_transaction_read_only = off
> #statement_timeout = 0 # 0 is disabled, in milliseconds
>
> # - Locale and Formatting -
>
> #datestyle = 'iso, mdy'
> #timezone = unknown # actually, defaults to TZ
> # environment setting
> #australian_timezones = off
> #extra_float_digits = 0 # min -15, max 2
> #client_encoding = sql_ascii # actually, defaults to database
> # encoding
>
> # These settings are initialized by initdb -- they might be changed
> lc_messages = 'C' # locale for system error message
> # strings
> lc_monetary = 'C' # locale for monetary formatting
> lc_numeric = 'C' # locale for number formatting
> lc_time = 'C' # locale for time formatting
>
> # - Other Defaults -
>
> #explain_pretty_print = on
> #dynamic_library_path = '$libdir'
>
>
> #---------------------------------------------------------------------------
>
> # LOCK MANAGEMENT
> #---------------------------------------------------------------------------
>
>
> #deadlock_timeout = 1000 # in milliseconds
> #max_locks_per_transaction = 64 # min 10
> # note: each lock table slot uses ~220 bytes of shared memory, and there
> are
> # max_locks_per_transaction * (max_connections + max_prepared_transactions)
> # lock table slots.
>
>
> #---------------------------------------------------------------------------
>
> # VERSION/PLATFORM COMPATIBILITY
> #---------------------------------------------------------------------------
>
>
> # - Previous Postgres Versions -
>
> #add_missing_from = off
> #regex_flavor = advanced # advanced, extended, or basic
> #sql_inheritance = on
> #default_with_oids = off
> #escape_string_warning = off
>
> # - Other Platforms & Clients -
>
> #transform_null_equals = off
>
>
> #---------------------------------------------------------------------------
>
> # CUSTOMIZED OPTIONS
> #---------------------------------------------------------------------------
>
>
> #custom_variable_classes = '' # list of custom variable class names
>
> ---------------------------(end of broadcast)---------------------------
> TIP 9: In versions below 8.0, the planner will ignore your desire to
> choose an index scan if your joining column's datatypes do not
> match
>

--
Bruce Momjian http://candle.pha.pa.us
EnterpriseDB http://www.enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

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