Reflecting an updated parameter value requires a server restart, which
was not mentioned in the documentation and in postgresql.conf.sample.
Reported-by: Thomas Poty
Discussion: https://postgr.es/m/15659-
0cd812f13027a2d8@postgresql.org
<para>
When set to off, which is the default, <productname>PostgreSQL</productname>
will raise a PANIC-level error on failure to flush modified data files
- to the filesystem. This causes the database server to crash.
+ to the filesystem. This causes the database server to crash. This
+ parameter can only be set at server start.
</para>
<para>
On some operating systems, the status of data in the kernel's page
#exit_on_error = off # terminate session on any error?
#restart_after_crash = on # reinitialize after backend crash?
-#data_sync_retry = off # retry or panic on failure to fsync data?
+#data_sync_retry = off # retry or panic on failure to fsync
+ # data?
+ # (change requires restart)
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