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Add pg_upgrade --jobs parameter

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Add pg_upgrade --jobs, which allows parallel dump/restore of databases,
which improves performance.
This commit is contained in:
Bruce Momjian
2012-12-26 19:26:30 -05:00
parent 3f88b08003
commit 6f1b9e4efd
7 changed files with 277 additions and 19 deletions
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8
contrib/pg_upgrade/option.c
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@ -52,6 +52,7 @@ parseCommandLine(int argc, char *argv[])
{"check", no_argument, NULL, 'c'},
{"link", no_argument, NULL, 'k'},
{"retain", no_argument, NULL, 'r'},
{"jobs", required_argument, NULL, 'j'},
{"verbose", no_argument, NULL, 'v'},
{NULL, 0, NULL, 0}
};
@ -101,7 +102,7 @@ parseCommandLine(int argc, char *argv[])
if ((log_opts.internal = fopen_priv(INTERNAL_LOG_FILE, "a")) == NULL)
pg_log(PG_FATAL, "cannot write to log file %s\n", INTERNAL_LOG_FILE);
while ((option = getopt_long(argc, argv, "d:D:b:B:cko:O:p:P:ru:v",
while ((option = getopt_long(argc, argv, "d:D:b:B:cj:ko:O:p:P:ru:v",
long_options, &optindex)) != -1)
{
switch (option)
@ -128,6 +129,10 @@ parseCommandLine(int argc, char *argv[])
new_cluster.pgconfig = pg_strdup(optarg);
break;
case 'j':
user_opts.jobs = atoi(optarg);
break;
case 'k':
user_opts.transfer_mode = TRANSFER_MODE_LINK;
break;
@ -229,6 +234,7 @@ Options:\n\
-c, --check check clusters only, don't change any data\n\
-d, --old-datadir=OLDDATADIR old cluster data directory\n\
-D, --new-datadir=NEWDATADIR new cluster data directory\n\
-j, --jobs number of simultaneous processes or threads to use\n\
-k, --link link instead of copying files to new cluster\n\
-o, --old-options=OPTIONS old cluster options to pass to the server\n\
-O, --new-options=OPTIONS new cluster options to pass to the server\n\