diff options
Diffstat (limited to 'doc/src/sgml/wal.sgml')
| -rw-r--r-- | doc/src/sgml/wal.sgml | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/doc/src/sgml/wal.sgml b/doc/src/sgml/wal.sgml index 2b650e71d2..07d279685d 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 1.13 2001/11/21 06:09:45 thomas Exp $ --> +<!-- $Header: /cvsroot/pgsql/doc/src/sgml/wal.sgml,v 1.14 2001/11/28 20:49:10 petere Exp $ --> <chapter id="wal"> <title>Write-Ahead Logging (<acronym>WAL</acronym>)</title> @@ -54,7 +54,7 @@ <orderedlist> <listitem> - <simpara>index tuples pointing to non-existent table rows</simpara> + <simpara>index tuples pointing to nonexistent table rows</simpara> </listitem> <listitem> @@ -148,8 +148,8 @@ <para> <acronym>WAL</acronym> logs are stored in the directory <Filename><replaceable>$PGDATA</replaceable>/pg_xlog</Filename>, as - a set of segment files, each 16MB in size. Each segment is - divided into 8KB pages. The log record headers are described in + a set of segment files, each 16 MB in size. Each segment is + divided into 8 kB pages. The log record headers are described in <filename>access/xlog.h</filename>; record content is dependent on the type of event that is being logged. Segment files are given ever-increasing numbers as names, starting at @@ -163,7 +163,7 @@ shared memory, and are handled by the backends; they are protected by lightweight locks. The demand on shared memory is dependent on the number of buffers. The default size of the <acronym>WAL</acronym> - buffers is 8 8KB buffers, or 64KB. + buffers is 8 buffers of 8 kB each, or 64 kB total. </para> <para> @@ -208,7 +208,7 @@ corruption of <filename>pg_control</filename>, we should actually implement the reading of existing log segments in reverse order -- newest to oldest -- in order to find the last checkpoint. This has - not yet been done in release 7.1. + not been implemented, yet. </para> </sect2> </sect1> @@ -348,11 +348,11 @@ </para> <para> - Setting the <varname>WAL_DEBUG</varname> parameter to any non-zero + Setting the <varname>WAL_DEBUG</varname> parameter to any nonzero value will result in each <function>LogInsert</function> and <function>LogFlush</function> <acronym>WAL</acronym> call being logged to standard error. At present, it makes no difference what - the non-zero value is. This option may be replaced by a more + the nonzero value is. This option may be replaced by a more general mechanism in the future. </para> </sect1> |