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pg_upgrade: remove reference to autovacuum_multixact_freeze_max_age 

autovacuum_multixact_freeze_max_age was added as a pg_ctl start
parameter in 9.3.X to prevent autovacuum from running.  However, only
some 9.3.X releases have autovacuum_multixact_freeze_max_age as it was
added in a minor PG 9.3 release.  It also isn't needed because -b turns
off autovacuum in 9.1+.

Without this fix, trying to upgrade from an early 9.3 release to 9.4
would fail.

Report by EDB

Backpatch through 9.3
This commit is contained in:
Bruce Momjian 2014-08-04 11:45:45 -04:00
parent cd74a151b5
commit b4bd6f6b05
1 changed files with 8 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
contrib/pg_upgrade/server.c
View File

@ -202,12 +202,13 @@ start_postmaster(ClusterInfo *cluster, bool throw_error)
#endif
/*
* Using autovacuum=off disables cleanup vacuum and analyze, but freeze
* vacuums can still happen, so we set autovacuum_freeze_max_age and
* autovacuum_multixact_freeze_max_age to their maximums. We assume all
* datfrozenxid, relfrozenxid, and relminmxid values are less than a gap
* of 2000000000 from the current xid counter, so autovacuum will not
* touch them.
* Since PG 9.1, we have used -b to disable autovacuum. For earlier
* releases, setting autovacuum=off disables cleanup vacuum and analyze,
* but freeze vacuums can still happen, so we set autovacuum_freeze_max_age
* to its maximum. (autovacuum_multixact_freeze_max_age was introduced
* after 9.1, so there is no need to set that.) We assume all datfrozenxid
* and relfrozenxid values are less than 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
@ -215,13 +216,11 @@ start_postmaster(ClusterInfo *cluster, bool throw_error)
* win on ext4.
*/
snprintf(cmd, sizeof(cmd),
"\"%s/pg_ctl\" -w -l \"%s\" -D \"%s\" -o \"-p %d%s%s %s%s%s\" start",
"\"%s/pg_ctl\" -w -l \"%s\" -D \"%s\" -o \"-p %d%s%s %s%s\" start",
cluster->bindir, SERVER_LOG_FILE, cluster->pgconfig, cluster->port,
(cluster->controldata.cat_ver >=
BINARY_UPGRADE_SERVER_FLAG_CAT_VER) ? " -b" :
" -c autovacuum=off -c autovacuum_freeze_max_age=2000000000",
(GET_MAJOR_VERSION(cluster->major_version) >= 903) ?
" -c autovacuum_multixact_freeze_max_age=2000000000" : "",
(cluster == &new_cluster) ?
" -c synchronous_commit=off -c fsync=off -c full_page_writes=off" : "",
cluster->pgopts ? cluster->pgopts : "", socket_string);