From c846e67c46d5e72e6a0855282720bc44c6f95cb9 Mon Sep 17 00:00:00 2001
From: Heikki Linnakangas <heikki.linnakangas@iki.fi>
Date: Fri, 5 Dec 2014 11:58:24 +0200
Subject: [PATCH] Print wal_log_hints in the rm_desc routing of a
parameter-change record.
It was an oversight in the original commit.
Also note in the sample config file that changing wal_log_hints requires a
restart.
Michael Paquier. Backpatch to 9.4, where wal_log_hints was added.
---
src/backend/access/rmgrdesc/xlogdesc.c | 7 +++++--
src/backend/utils/misc/postgresql.conf.sample | 1 +
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/src/backend/access/rmgrdesc/xlogdesc.c b/src/backend/access/rmgrdesc/xlogdesc.c
index 6b5fea96d7b..8a88155ef9c 100644
--- a/src/backend/access/rmgrdesc/xlogdesc.c
+++ b/src/backend/access/rmgrdesc/xlogdesc.c
@@ -108,12 +108,15 @@ xlog_desc(StringInfo buf, XLogReaderState *record)
}
}
- appendStringInfo(buf, "max_connections=%d max_worker_processes=%d max_prepared_xacts=%d max_locks_per_xact=%d wal_level=%s",
+ appendStringInfo(buf, "max_connections=%d max_worker_processes=%d "
+ "max_prepared_xacts=%d max_locks_per_xact=%d "
+ "wal_level=%s wal_log_hints=%s",
xlrec.MaxConnections,
xlrec.max_worker_processes,
xlrec.max_prepared_xacts,
xlrec.max_locks_per_xact,
- wal_level_str);
+ wal_level_str,
+ xlrec.wal_log_hints ? "on" : "off");
}
else if (info == XLOG_FPW_CHANGE)
{
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index c4b546ed12e..b053659f88e 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -187,6 +187,7 @@
# open_sync
#full_page_writes = on # recover from partial page writes
#wal_log_hints = off # also do full page writes of non-critical updates
+ # (change requires restart)
#wal_buffers = -1 # min 32kB, -1 sets based on shared_buffers
# (change requires restart)
#wal_writer_delay = 200ms # 1-10000 milliseconds
--
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