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-rw-r--r--contrib/pg_upgrade/server.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/contrib/pg_upgrade/server.c b/contrib/pg_upgrade/server.c
index db622496372..49d4c8f9d73 100644
--- a/contrib/pg_upgrade/server.c
+++ b/contrib/pg_upgrade/server.c
@@ -209,10 +209,9 @@ start_postmaster(ClusterInfo *cluster)
* a gap of 2000000000 from the current xid counter, so autovacuum will
* not touch them.
*
- * Turn off durability requirements to improve object creation speed, and
- * we only modify the new cluster, so only use it there. If there is a
- * crash, the new cluster has to be recreated anyway. fsync=off is a big
- * win on ext4.
+ * synchronous_commit=off improves object creation speed, and we only
+ * modify the new cluster, so only use it there. If there is a crash,
+ * the new cluster has to be recreated anyway.
*/
snprintf(cmd, sizeof(cmd),
"\"%s/pg_ctl\" -w -l \"%s\" -D \"%s\" -o \"-p %d%s%s%s%s\" start",
@@ -220,8 +219,7 @@ start_postmaster(ClusterInfo *cluster)
(cluster->controldata.cat_ver >=
BINARY_UPGRADE_SERVER_FLAG_CAT_VER) ? " -b" :
" -c autovacuum=off -c autovacuum_freeze_max_age=2000000000",
- (cluster == &new_cluster) ?
- " -c synchronous_commit=off -c fsync=off -c full_page_writes=off" : "",
+ (cluster == &new_cluster) ? " -c synchronous_commit=off" : "",
cluster->pgopts ? cluster->pgopts : "", socket_string);
/*