mirror/postgresql
2
0
Fork 0
mirror of https://git.postgresql.org/git/postgresql.git synced 2024-12-21 08:29:39 +08:00
Code Issues Packages Projects Releases Wiki Activity

Document default Linux autocommit behavior, and show workaround.

Browse Source
This commit is contained in:
Bruce Momjian 2003-06-12 15:31:02 +00:00
parent b4117d8b1b
commit 8d2d92c5f0
1 changed files with 11 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
doc/src/sgml/runtime.sgml
View File

@ -1,5 +1,5 @@
<!-- <!--
$Header: /cvsroot/pgsql/doc/src/sgml/runtime.sgml,v 1.184 2003/06/11 22:13:21 momjian Exp $ $Header: /cvsroot/pgsql/doc/src/sgml/runtime.sgml,v 1.185 2003/06/12 15:31:02 momjian Exp $
--> -->
<Chapter Id="runtime"> <Chapter Id="runtime">
@ -2780,6 +2780,16 @@ kernel.shmmax = 134217728
<filename>/usr/src/linux/include/asm-<replaceable>xxx</>/shmpara <filename>/usr/src/linux/include/asm-<replaceable>xxx</>/shmpara
m.h</> and <filename>/usr/src/linux/include/linux/sem.h</>. m.h</> and <filename>/usr/src/linux/include/linux/sem.h</>.
</para> </para>
<para>
Linux has poor default memory overcommit behavior. Rather than
failing if it can not reserve enough memory, it returns success,
but later fails when the memory can't be mapped and terminates
the application. To prevent unpredictable process termination, use:
<programlisting>
sysctl -w vm.overcommit_memory=3
</programlisting>
</para>
</listitem> </listitem>
</varlistentry> </varlistentry>