1- <!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.166 2008/02/16 21:14:08 momjian Exp $ -->
1+ <!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.167 2008/03/05 16:59:10 momjian Exp $ -->
22
33<chapter Id="runtime-config">
44 <title>Server Configuration</title>
@@ -1584,9 +1584,10 @@ SET ENABLE_SEQSCAN TO OFF;
15841584 </indexterm>
15851585 <listitem>
15861586 <para>
1587- Maximum distance between automatic WAL checkpoints, in log
1588- file segments (each segment is normally 16 megabytes). The
1589- default is three segments.
1587+ Maximum number of log file segments between automatic WAL
1588+ checkpoints (each segment is normally 16 megabytes). The default
1589+ is three segments. Increasing this parameter can increase the
1590+ amount of time needed for crash recovery.
15901591 This parameter can only be set in the <filename>postgresql.conf</>
15911592 file or on the server command line.
15921593 </para>
@@ -1602,6 +1603,8 @@ SET ENABLE_SEQSCAN TO OFF;
16021603 <para>
16031604 Maximum time between automatic WAL checkpoints, in
16041605 seconds. The default is five minutes (<literal>5min</>).
1606+ Increasing this parameter can increase the amount of time needed
1607+ for crash recovery.
16051608 This parameter can only be set in the <filename>postgresql.conf</>
16061609 file or on the server command line.
16071610 </para>