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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2021-07-01 13:33:05 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2021-07-01 13:33:05 -0400 |
| commit | b741f4c3ee67666aa333dbb25bd71906b3474def (patch) | |
| tree | 2d729ddb09ea71e44234340da38426eb939a0e5e /doc/src | |
| parent | d700518d744e53994fdded14b23ebc15b031b0dd (diff) | |
Add --clobber-cache option to initdb, for CCA testing.
Commit 4656e3d66 replaced the "#define CLOBBER_CACHE_ALWAYS"
testing mechanism with a GUC, which has been a great help for
doing cache-clobber testing in more efficient ways; but there
is a gap in the implementation. The only way to do cache-clobber
testing during an initdb run is to use the old method with #define,
because one can't set the GUC from outside. Improve this by
adding a switch to initdb for the purpose.
(Perhaps someday we should let initdb pass through arbitrary
"-c NAME=VALUE" switches. Quoting difficulties dissuaded me
from attempting that right now, though.)
Back-patch to v14 where 4656e3d66 came in.
Discussion: https://postgr.es/m/1582507.1624227029@sss.pgh.pa.us
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/ref/initdb.sgml | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/doc/src/sgml/ref/initdb.sgml b/doc/src/sgml/ref/initdb.sgml index afd344b4c06..3077530c7b4 100644 --- a/doc/src/sgml/ref/initdb.sgml +++ b/doc/src/sgml/ref/initdb.sgml @@ -389,6 +389,17 @@ PostgreSQL documentation <variablelist> <varlistentry> + <term><option>--clobber-cache</option></term> + <listitem> + <para> + Run the bootstrap backend with the + <literal>debug_invalidate_system_caches_always=1</literal> option. + This takes a very long time and is only of use for deep debugging. + </para> + </listitem> + </varlistentry> + + <varlistentry> <term><option>-d</option></term> <term><option>--debug</option></term> <listitem> |