Reduce the chatter to the log when starting a standby server. Don't

echo all the recovery.conf options. Don't emit the "initializing
recovery connections" message, which doesn't mean anything to a user.
Remove the "starting archive recovery" message and replace the
"automatic recovery in progress" message with a more informative message
saying whether the server is doing PITR, normal archive recovery, or
standby mode.

Author: hlinnaka

src/backend/access/transam/xlog.c

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/backend/access/transam/xlog.c,v 1.372 2010/02/12 07:56:36 heikki Exp $
+ * $PostgreSQL: pgsql/src/backend/access/transam/xlog.c,v 1.373 2010/02/12 09:49:08 heikki Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -4882,9 +4882,6 @@ readRecoveryCommandFile(void)
 						RECOVERY_COMMAND_FILE)));
 	}
 
-	ereport(LOG,
-			(errmsg("starting archive recovery")));
-
 	/*
 	 * Parse the file...
 	 */
@@ -4927,14 +4924,14 @@ readRecoveryCommandFile(void)
 		if (strcmp(tok1, "restore_command") == 0)
 		{
 			recoveryRestoreCommand = pstrdup(tok2);
-			ereport(LOG,
+			ereport(DEBUG2,
 					(errmsg("restore_command = '%s'",
 							recoveryRestoreCommand)));
 		}
 		else if (strcmp(tok1, "recovery_end_command") == 0)
 		{
 			recoveryEndCommand = pstrdup(tok2);
-			ereport(LOG,
+			ereport(DEBUG2,
 					(errmsg("recovery_end_command = '%s'",
 							recoveryEndCommand)));
 		}
@@ -4953,10 +4950,10 @@ readRecoveryCommandFile(void)
 									tok2)));
 			}
 			if (rtli)
-				ereport(LOG,
+				ereport(DEBUG2,
 						(errmsg("recovery_target_timeline = %u", rtli)));
 			else
-				ereport(LOG,
+				ereport(DEBUG2,
 						(errmsg("recovery_target_timeline = latest")));
 		}
 		else if (strcmp(tok1, "recovery_target_xid") == 0)
@@ -4967,7 +4964,7 @@ readRecoveryCommandFile(void)
 				ereport(FATAL,
 				 (errmsg("recovery_target_xid is not a valid number: \"%s\"",
 						 tok2)));
-			ereport(LOG,
+			ereport(DEBUG2,
 					(errmsg("recovery_target_xid = %u",
 							recoveryTargetXid)));
 			recoveryTarget = true;
@@ -4992,7 +4989,7 @@ readRecoveryCommandFile(void)
 														CStringGetDatum(tok2),
 												ObjectIdGetDatum(InvalidOid),
 														Int32GetDatum(-1)));
-			ereport(LOG,
+			ereport(DEBUG2,
 					(errmsg("recovery_target_time = '%s'",
 							timestamptz_to_str(recoveryTargetTime))));
 		}
@@ -5005,7 +5002,7 @@ readRecoveryCommandFile(void)
 				ereport(ERROR,
 						(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
 						 errmsg("parameter \"recovery_target_inclusive\" requires a Boolean value")));
-			ereport(LOG,
+			ereport(DEBUG2,
 					(errmsg("recovery_target_inclusive = %s", tok2)));
 		}
 		else if (strcmp(tok1, "standby_mode") == 0)
@@ -5014,20 +5011,20 @@ readRecoveryCommandFile(void)
 				ereport(ERROR,
 						(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
 						 errmsg("parameter \"standby_mode\" requires a Boolean value")));
-			ereport(LOG,
+			ereport(DEBUG2,
 					(errmsg("standby_mode = '%s'", tok2)));
 		}
 		else if (strcmp(tok1, "primary_conninfo") == 0)
 		{
 			PrimaryConnInfo = pstrdup(tok2);
-			ereport(LOG,
+			ereport(DEBUG2,
 					(errmsg("primary_conninfo = '%s'",
 							PrimaryConnInfo)));
 		}
 		else if (strcmp(tok1, "trigger_file") == 0)
 		{
 			TriggerFile = pstrdup(tok2);
-			ereport(LOG,
+			ereport(DEBUG2,
 					(errmsg("trigger_file = '%s'",
 							TriggerFile)));
 		}
@@ -5649,8 +5646,23 @@ StartupXLOG(void)
 		 */
 		if (InArchiveRecovery)
 		{
-			ereport(LOG,
-					(errmsg("automatic recovery in progress")));
+			if (StandbyMode)
+				ereport(LOG,
+						(errmsg("entering standby mode")));
+			else if (recoveryTarget)
+			{
+				if (recoveryTargetExact)
+					ereport(LOG,
+							(errmsg("starting point-in-time recovery to XID %u",
+									recoveryTargetXid)));
+				else
+					ereport(LOG,
+							(errmsg("starting point-in-time recovery to %s",
+									timestamptz_to_str(recoveryTargetTime))));
+			}
+			else
+				ereport(LOG,
+						(errmsg("starting archive recovery")));
 			ControlFile->state = DB_IN_ARCHIVE_RECOVERY;
 		}
 		else
@@ -5718,8 +5730,8 @@ StartupXLOG(void)
 
 			CheckRequiredParameterValues(checkPoint);
 
-			ereport(LOG,
-				(errmsg("initializing recovery connections")));
+			ereport(DEBUG1,
+					(errmsg("initializing recovery connections")));
 
 			InitRecoveryTransactionEnvironment();