Postgresql of csv log settings

June 16, 2012 09:27:00 weixin_34406796 Reads 24

Original link: https://my.oschina.net/Kenyon/blog/62504

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PG logging system more complete, the system starts to remove the specified log, log Wal substandard, the following describes a further detailed output log: csv log related to the parameter file:. $ PGDATA / postgresql.conf
main parameters involved:

log_destination = 'csvlog'
logging_collector = on
log_directory = '/home/postgres/pg_log'
log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log'

1. Description
To turn csv log, you need to set logging_collector = on, or else lose out. DB need to restart after setting finished.
The default parameters are log_destination stderr, without modification, then only the output stderr
log_directory is the path of the output log
log_filename is the name of the output log, the default.
There are other parameters specific reference to where to log the postgresql.conf portion.

2. View:

[postgres@localhost pg_log]$ ll /home/postgres/pg_log/
total 4
-rw-------. 1 postgres postgres 2476 Jun 15 15:40 postgresql-2012-06-15_152431.csv
-rw-------. 1 postgres postgres    0 Jun 15 15:24 postgresql-2012-06-15_152431.log
 
[postgres@localhost pg_log]$ more postgresql-2012-06-15_152431.csv 
2012-06-15 15:24:31.258 CST,,,1882,,4fdae32f.75a,1,,2012-06-15 15:24:31 CST,,0,LOG,00000,"database system was shut down at 2012-06-1
5 15:24:19 CST",,,,,,,,,""
2012-06-15 15:24:31.259 CST,,,1882,,4fdae32f.75a,2,,2012-06-15 15:24:31 CST,,0,LOG,00000,"could not remove cache file ""base/16384/p
g_internal.init"": Not a directory",,,,,,,,,""
2012-06-15 15:24:31.282 CST,,,1885,,4fdae32f.75d,1,,2012-06-15 15:24:31 CST,,0,LOG,00000,"autovacuum launcher started",,,,,,,,,""
2012-06-15 15:24:31.306 CST,,,1880,,4fdae32e.758,1,,2012-06-15 15:24:30 CST,,0,LOG,00000,"database system is ready to accept connect
ions",,,,,,,,,""

3. The log storage
is to import the text file into the database, using the copy mode is relatively simple. To build the table

CREATE TABLE pg_log
(
  log_time timestamp(3) with time zone,
  user_name text,
  database_name text,
  process_id integer,
  connection_from text,
  session_id text,
  session_line_num bigint,
  command_tag text,
  session_start_time timestamp with time zone,
  virtual_transaction_id text,
  transaction_id bigint,
  error_severity text,
  sql_state_code text,
  message text,
  detail text,
  hint text,
  internal_query text,
  internal_query_pos integer,
  context text,
  query text,
  query_pos integer,
  location text,
  application_name text,
  PRIMARY KEY (session_id, session_line_num)
);
 
NOTICE:  CREATE TABLE / PRIMARY KEY will create implicit index "pg_log_pkey" for table "pg_log"

copy pg_log from '/home/postgres/pg_log/postgresql-2012-06-15_152431.csv' with csv;
COPY 4

4. Close the log
to log open during operation do the reverse, set off to the correlation value

5. Other
This log information may be combined with a log output start time to see a history of operation of the system, is a very easy to troubleshoot the system err Tool of

Reproduced in: https: //my.oschina.net/Kenyon/blog/62504

[Posts] csv log settings of the Postgresql

Postgresql of csv log settings

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