diff options
| author | Tom Lane | 2022-08-23 13:41:37 +0000 |
|---|---|---|
| committer | Tom Lane | 2022-08-23 14:15:06 +0000 |
| commit | 4ee6740167b6a311660a1e8752447a496dd0d235 (patch) | |
| tree | 1cf1401792ef68cb1873d44063316462fa5c71f5 | |
| parent | bd67b7e01031b688f2f19f657ece4aa2322dbcc8 (diff) | |
Doc: prefer sysctl to /proc/sys in docs and comments.
sysctl is more portable than Linux's /proc/sys file tree, and
often easier to use too. That's why most of our docs refer to
sysctl when talking about how to adjust kernel parameters.
Bring the few stragglers into line.
Discussion: https://postgr.es/m/[email protected]
| -rw-r--r-- | doc/src/sgml/runtime.sgml | 11 | ||||
| -rw-r--r-- | src/backend/postmaster/postmaster.c | 2 |
2 files changed, 7 insertions, 6 deletions
diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index 963b18ed85..5d0b32121d 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1258,11 +1258,12 @@ default:\ <itemizedlist> <listitem> <para> - On <productname>Linux</productname> - <filename>/proc/sys/fs/file-max</filename> determines the - maximum number of open files that the kernel will support. It can - be changed by writing a different number into the file or by - adding an assignment in <filename>/etc/sysctl.conf</filename>. + On <productname>Linux</productname> the kernel parameter + <varname>fs.file-max</varname> determines the maximum number of open + files that the kernel will support. It can be changed with + <literal>sysctl -w fs.file-max=<replaceable>N</replaceable></literal>. + To make the setting persist across reboots, add an assignment + in <filename>/etc/sysctl.conf</filename>. The maximum limit of files per process is fixed at the time the kernel is compiled; see <filename>/usr/src/linux/Documentation/proc.txt</filename> for diff --git a/src/backend/postmaster/postmaster.c b/src/backend/postmaster/postmaster.c index 8a038d1b2a..1664fcee2a 100644 --- a/src/backend/postmaster/postmaster.c +++ b/src/backend/postmaster/postmaster.c @@ -4891,7 +4891,7 @@ SubPostmasterMain(int argc, char *argv[]) * If testing EXEC_BACKEND on Linux, you should run this as root before * starting the postmaster: * - * echo 0 >/proc/sys/kernel/randomize_va_space + * sysctl -w kernel.randomize_va_space=0 * * This prevents using randomized stack and code addresses that cause the * child process's memory map to be different from the parent's, making it |