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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2008-05-02 19:52:37 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2008-05-02 19:52:37 +0000 |
| commit | cf9f6c8d8e9df28f3fbe1850ca7f042b2c01252e (patch) | |
| tree | 199144b9764d3f70aa7f6235c8d896be2d92b1e0 /src/include/pg_config.h.in | |
| parent | b3fb2d6505d6f31c3f7491b6b900cbbe251aec2a (diff) | |
| download | postgresql-cf9f6c8d8e9df28f3fbe1850ca7f042b2c01252e.tar.gz | |
Extend yesterday's patch making BLCKSZ and RELSEG_SIZE configurable to also
let XLOG_BLCKSZ and XLOG_SEG_SIZE be set via configure. Per a proposal by
Mark Wong, though I thought it better to call the switches after "wal" rather
than "xlog".
Diffstat (limited to 'src/include/pg_config.h.in')
| -rw-r--r-- | src/include/pg_config.h.in | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in index 608e75cd7b..2314d81965 100644 --- a/src/include/pg_config.h.in +++ b/src/include/pg_config.h.in @@ -747,6 +747,18 @@ first (like Motorola and SPARC, unlike Intel and VAX). */ #undef WORDS_BIGENDIAN +/* Size of a WAL file block. This need have no particular relation to BLCKSZ. + XLOG_BLCKSZ must be a power of 2, and if your system supports O_DIRECT I/O, + XLOG_BLCKSZ must be a multiple of the alignment requirement for direct-I/O + buffers, else direct I/O may fail. Changing XLOG_BLCKSZ requires an initdb. + */ +#undef XLOG_BLCKSZ + +/* XLOG_SEG_SIZE is the size of a single WAL file. This must be a power of 2 + and larger than XLOG_BLCKSZ (preferably, a great deal larger than + XLOG_BLCKSZ). Changing XLOG_SEG_SIZE requires an initdb. */ +#undef XLOG_SEG_SIZE + /* Number of bits in a file offset, on hosts where this is settable. */ #undef _FILE_OFFSET_BITS |