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Allow parallel copy/link in pg_upgrade

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This patch implements parallel copying/linking of files by tablespace
using the --jobs option in pg_upgrade.
This commit is contained in:
Bruce Momjian
2013-01-09 08:57:47 -05:00
parent c00dc337b8
commit a89c46f9bc
8 changed files with 256 additions and 73 deletions
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14
contrib/pg_upgrade/tablespace.c
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@ -23,7 +23,7 @@ init_tablespaces(void)
set_tablespace_directory_suffix(&old_cluster);
set_tablespace_directory_suffix(&new_cluster);
if (os_info.num_tablespaces > 0 &&
if (os_info.num_old_tablespaces > 0 &&
strcmp(old_cluster.tablespace_suffix, new_cluster.tablespace_suffix) == 0)
pg_log(PG_FATAL,
"Cannot upgrade to/from the same system catalog version when\n"
@ -57,16 +57,16 @@ get_tablespace_paths(void)
res = executeQueryOrDie(conn, "%s", query);
if ((os_info.num_tablespaces = PQntuples(res)) != 0)
os_info.tablespaces = (char **) pg_malloc(
os_info.num_tablespaces * sizeof(char *));
if ((os_info.num_old_tablespaces = PQntuples(res)) != 0)
os_info.old_tablespaces = (char **) pg_malloc(
os_info.num_old_tablespaces * sizeof(char *));
else
os_info.tablespaces = NULL;
os_info.old_tablespaces = NULL;
i_spclocation = PQfnumber(res, "spclocation");
for (tblnum = 0; tblnum < os_info.num_tablespaces; tblnum++)
os_info.tablespaces[tblnum] = pg_strdup(
for (tblnum = 0; tblnum < os_info.num_old_tablespaces; tblnum++)
os_info.old_tablespaces[tblnum] = pg_strdup(
PQgetvalue(res, tblnum, i_spclocation));
PQclear(res);