Could anyone tell me how to specify the application_name as the log_line_prefix?
According to the manual at http://www.postgresql.org/docs/9.2/static/runtime-config-logging.html#GUC-APPLICATION-NAME:
"
application_name (string)
-
The application_name can be any string of less than NAMEDATALEN characters (64 characters in a standard build). It is typically set by an application upon connection to the server. The name will be displayed in the pg_stat_activity view and included in CSV log entries. It can also be included in regular log entries via the log_line_prefix parameter. Only printable ASCII characters may be used in the application_name value...
and also, the manual entry for log_line_prefix (http://www.postgresql.org/docs/9.2/static/runtime-config-logging.html#GUC-LOG-LINE-PREFIX)
"
log_line_prefix (string)
This is a
printf-style
string that is output at the beginning of each log line.
% characters begin "escape sequences" that are replaced with
status information as outlined below... %a Application name
"
However, I have the following configuration settings in postgresql.conf
application_name = 'mypostgres'
log_line_prefix = '[%a] '
But, my log line is prefixed as "[] " like
[] LOG: 00000: database system was shut down at 2012-10-28 22:15:08 PDT
[] LOCATION: StartupXLOG, xlog.c:6112
[] LOG: 00000: autovacuum launcher started
[] LOCATION: AutoVacLauncherMain, autovacuum.c:407
[] LOG: 00000: database system is ready to accept connections
[] LOCATION: reaper, postmaster.c:2408
Did I miss something?
Thanks a lot!
Tianyin
--
Tianyin XU,
http://cseweb.ucsd.edu/~tixu/
