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This patch against 8.0.0beta1 source adds log_line_prefix options for 

millisecond timestamps (%m) and remote host (%h). The milliseconds are
useful for QPS measurements.

Ed L.
This commit is contained in:
Bruce Momjian 2005-06-09 22:29:52 +00:00
parent 7974c35020
commit 6c2ba14d8d
3 changed files with 45 additions and 3 deletions
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12
doc/src/sgml/runtime.sgml
View File

@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/runtime.sgml,v 1.322 2005/06/04 20:42:41 momjian Exp $
$PostgreSQL: pgsql/doc/src/sgml/runtime.sgml,v 1.323 2005/06/09 22:29:52 momjian Exp $
-->
<chapter Id="runtime">
@ -2829,6 +2829,11 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Windows
<entry>Remote host name or IP address, and remote port</entry>
<entry>yes</entry>
</row>
<row>
<entry><literal>%h</literal></entry>
<entry>Remote Hostname or IP address</entry>
<entry>yes</entry>
</row>
<row>
<entry><literal>%p</literal></entry>
<entry>Process ID</entry>
@ -2839,6 +2844,11 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Windows
<entry>Time stamp</entry>
<entry>no</entry>
</row>
<row>
<entry><literal>%m</literal></entry>
<entry>Timestamp with milliseconds</entry>
<entry>no</entry>
</row>
<row>
<entry><literal>%i</literal></entry>
<entry>Command tag: This is the command that generated the log line.</entry>

33
src/backend/utils/error/elog.c
View File

@ -42,7 +42,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/error/elog.c,v 1.158 2005/03/12 01:54:44 tgl Exp $
* $PostgreSQL: pgsql/src/backend/utils/error/elog.c,v 1.159 2005/06/09 22:29:52 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -1375,6 +1375,33 @@ log_line_prefix(StringInfo buf)
case 'l':
appendStringInfo(buf, "%ld", log_line_number);
break;
case 'm':
{
time_t stamp_time;
char strfbuf[128], msbuf[5];
struct timeval tv;
gettimeofday(&tv, NULL);
stamp_time = tv.tv_sec;
strftime(strfbuf, sizeof(strfbuf),
/* leave room for milliseconds... */
/* Win32 timezone names are too long so don't print them. */
#ifndef WIN32
"%Y-%m-%d %H:%M:%S %Z",
#else
"%Y-%m-%d %H:%M:%S ",
#endif
localtime(&stamp_time));
/* 'paste' milliseconds into place... */
sprintf(msbuf, ".%03d",
(int)(tv.tv_usec/1000));
strncpy(strfbuf+19, msbuf, 4);
appendStringInfoString(buf, strfbuf);
}
break;
case 't':
{
/*
@ -1426,6 +1453,10 @@ log_line_prefix(StringInfo buf)
MyProcPort->remote_port);
}
break;
case 'h':
if (MyProcPort)
appendStringInfo(buf, "%s", MyProcPort->remote_host);
break;
case 'q':
/* in postmaster and friends, stop if %q is seen */
/* in a backend, just ignore */

3
src/backend/utils/misc/postgresql.conf.sample
View File

@ -241,8 +241,9 @@
#log_duration = false
#log_line_prefix = '' # e.g. '<%u%%%d> '
# %u=user name %d=database name
# %r=remote host and port
# %r=remote host and port %h=remote host
# %p=PID %t=timestamp %i=command tag
# %m=timestamp with milliseconds
# %c=session id %l=session line number
# %s=session start timestamp %x=transaction id
# %q=stop here in non-session processes