diff --git a/doc/src/sgml/wal.sgml b/doc/src/sgml/wal.sgml index 0baebb3c093db55aac9db6f1e79aab6e65840ac3..5a566b25c3d560c31b2bbc335ef9d9d651630234 100644 --- a/doc/src/sgml/wal.sgml +++ b/doc/src/sgml/wal.sgml @@ -1,4 +1,4 @@ -<!-- $Header: /cvsroot/pgsql/doc/src/sgml/wal.sgml,v 1.17 2002/08/30 16:50:50 momjian Exp $ --> +<!-- $Header: /cvsroot/pgsql/doc/src/sgml/wal.sgml,v 1.18 2002/08/30 16:53:34 momjian Exp $ --> <chapter id="wal"> <title>Write-Ahead Logging (<acronym>WAL</acronym>)</title> @@ -302,10 +302,10 @@ </para> <para> - The number of 16MB segment files will always be at least - 1, and will normally not exceed <varname>CHECKPOINT_SEGMENTS</varname>) - + 1. This may be used to estimate space requirements for WAL. - Ordinarily, when old log segment files are no longer needed, + There will be at least one 16MB segment file, and will normally + not be more than <varname>CHECKPOINT_SEGMENTS</varname>) + + 1 files. You can use this to estimate space requirements for + WAL. Ordinarily, when old log segment files are no longer needed, they are recycled (renamed to become the next sequential future segments). If, due to a short-term peak of log output rate, there are more than <varname>CHECKPOINT_SEGMENTS</varname>) + 1 segment files,