PostgreSQL Source Code  git master
pg_upgrade.c File Reference
#include "postgres_fe.h"
#include "pg_upgrade.h"
#include "catalog/pg_class_d.h"
#include "common/file_perm.h"
#include "common/restricted_token.h"
#include "fe_utils/logging.h"
#include "fe_utils/string_utils.h"
Include dependency graph for pg_upgrade.c:

Go to the source code of this file.

Functions

static void prepare_new_cluster (void)
 
static void prepare_new_globals (void)
 
static void create_new_objects (void)
 
static void copy_xact_xlog_xid (void)
 
static void set_frozenxids (bool minmxid_only)
 
static void setup (char *argv0, bool *live_check)
 
static void cleanup (void)
 
int main (int argc, char **argv)
 
static void remove_new_subdir (const char *subdir, bool rmtopdir)
 
static void copy_subdir_files (const char *old_subdir, const char *new_subdir)
 

Variables

ClusterInfo old_cluster
 
ClusterInfo new_cluster
 
OSInfo os_info
 
char * output_files []
 

Function Documentation

◆ cleanup()

static void cleanup ( void  )
static

Definition at line 678 of file pg_upgrade.c.

References DB_DUMP_FILE_MASK, DB_DUMP_LOG_FILE_MASK, DbInfo::db_oid, ClusterInfo::dbarr, DbInfoArr::dbs, filename, GLOBALS_DUMP_FILE, LogOpts::internal, log_opts, MAXPGPATH, DbInfoArr::ndbs, output_files, LogOpts::retain, and snprintf.

Referenced by main().

679 {
680  fclose(log_opts.internal);
681 
682  /* Remove dump and log files? */
683  if (!log_opts.retain)
684  {
685  int dbnum;
686  char **filename;
687 
688  for (filename = output_files; *filename != NULL; filename++)
689  unlink(*filename);
690 
691  /* remove dump files */
692  unlink(GLOBALS_DUMP_FILE);
693 
694  if (old_cluster.dbarr.dbs)
695  for (dbnum = 0; dbnum < old_cluster.dbarr.ndbs; dbnum++)
696  {
697  char sql_file_name[MAXPGPATH],
698  log_file_name[MAXPGPATH];
699  DbInfo *old_db = &old_cluster.dbarr.dbs[dbnum];
700 
701  snprintf(sql_file_name, sizeof(sql_file_name), DB_DUMP_FILE_MASK, old_db->db_oid);
702  unlink(sql_file_name);
703 
704  snprintf(log_file_name, sizeof(log_file_name), DB_DUMP_LOG_FILE_MASK, old_db->db_oid);
705  unlink(log_file_name);
706  }
707  }
708 }
LogOpts log_opts
Definition: util.c:18
Oid db_oid
Definition: pg_upgrade.h:192
#define MAXPGPATH
char * output_files[]
Definition: pg_upgrade.c:63
ClusterInfo old_cluster
Definition: pg_upgrade.c:59
#define DB_DUMP_FILE_MASK
Definition: pg_upgrade.h:33
DbInfoArr dbarr
Definition: pg_upgrade.h:272
FILE * internal
Definition: pg_upgrade.h:293
#define DB_DUMP_LOG_FILE_MASK
Definition: pg_upgrade.h:35
static char * filename
Definition: pg_dumpall.c:91
#define GLOBALS_DUMP_FILE
Definition: pg_upgrade.h:32
DbInfo * dbs
Definition: pg_upgrade.h:204
bool retain
Definition: pg_upgrade.h:295
#define snprintf
Definition: port.h:192

◆ copy_subdir_files()

static void copy_subdir_files ( const char *  old_subdir,
const char *  new_subdir 
)
static

Definition at line 437 of file pg_upgrade.c.

References check_ok(), exec_prog(), MAXPGPATH, ClusterInfo::pgdata, prep_status(), remove_new_subdir(), snprintf, and UTILITY_LOG_FILE.

Referenced by copy_xact_xlog_xid().

438 {
439  char old_path[MAXPGPATH];
440  char new_path[MAXPGPATH];
441 
442  remove_new_subdir(new_subdir, true);
443 
444  snprintf(old_path, sizeof(old_path), "%s/%s", old_cluster.pgdata, old_subdir);
445  snprintf(new_path, sizeof(new_path), "%s/%s", new_cluster.pgdata, new_subdir);
446 
447  prep_status("Copying old %s to new server", old_subdir);
448 
449  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
450 #ifndef WIN32
451  "cp -Rf \"%s\" \"%s\"",
452 #else
453  /* flags: everything, no confirm, quiet, overwrite read-only */
454  "xcopy /e /y /q /r \"%s\" \"%s\\\"",
455 #endif
456  old_path, new_path);
457 
458  check_ok();
459 }
static void remove_new_subdir(const char *subdir, bool rmtopdir)
Definition: pg_upgrade.c:420
ClusterInfo new_cluster
Definition: pg_upgrade.c:59
#define MAXPGPATH
void prep_status(const char *fmt,...) pg_attribute_printf(1
ClusterInfo old_cluster
Definition: pg_upgrade.c:59
static void check_ok(void)
Definition: initdb.c:2103
#define UTILITY_LOG_FILE
Definition: pg_upgrade.h:37
char * pgdata
Definition: pg_upgrade.h:273
bool exec_prog(const char *log_file, const char *opt_log_file, bool report_error, bool exit_on_error, const char *fmt,...)
Definition: exec.c:80
#define snprintf
Definition: port.h:192

◆ copy_xact_xlog_xid()

static void copy_xact_xlog_xid ( void  )
static

Definition at line 462 of file pg_upgrade.c.

References ClusterInfo::bindir, ControlData::cat_ver, check_ok(), ControlData::chkpnt_nxtepoch, ControlData::chkpnt_nxtmulti, ControlData::chkpnt_nxtmxoff, ControlData::chkpnt_nxtxid, ControlData::chkpnt_oldstMulti, ClusterInfo::controldata, copy_subdir_files(), exec_prog(), GET_MAJOR_VERSION, ClusterInfo::major_version, MULTIXACT_FORMATCHANGE_CAT_VER, ControlData::nextxlogfile, ClusterInfo::pgdata, prep_status(), remove_new_subdir(), and UTILITY_LOG_FILE.

Referenced by main().

463 {
464  /*
465  * Copy old commit logs to new data dir. pg_clog has been renamed to
466  * pg_xact in post-10 clusters.
467  */
469  "pg_clog" : "pg_xact",
471  "pg_clog" : "pg_xact");
472 
473  /* set the next transaction id and epoch of the new cluster */
474  prep_status("Setting next transaction ID and epoch for new cluster");
475  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
476  "\"%s/pg_resetwal\" -f -x %u \"%s\"",
479  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
480  "\"%s/pg_resetwal\" -f -e %u \"%s\"",
483  /* must reset commit timestamp limits also */
484  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
485  "\"%s/pg_resetwal\" -f -c %u,%u \"%s\"",
490  check_ok();
491 
492  /*
493  * If the old server is before the MULTIXACT_FORMATCHANGE_CAT_VER change
494  * (see pg_upgrade.h) and the new server is after, then we don't copy
495  * pg_multixact files, but we need to reset pg_control so that the new
496  * server doesn't attempt to read multis older than the cutoff value.
497  */
500  {
501  copy_subdir_files("pg_multixact/offsets", "pg_multixact/offsets");
502  copy_subdir_files("pg_multixact/members", "pg_multixact/members");
503 
504  prep_status("Setting next multixact ID and offset for new cluster");
505 
506  /*
507  * we preserve all files and contents, so we must preserve both "next"
508  * counters here and the oldest multi present on system.
509  */
510  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
511  "\"%s/pg_resetwal\" -O %u -m %u,%u \"%s\"",
517  check_ok();
518  }
520  {
521  /*
522  * Remove offsets/0000 file created by initdb that no longer matches
523  * the new multi-xid value. "members" starts at zero so no need to
524  * remove it.
525  */
526  remove_new_subdir("pg_multixact/offsets", false);
527 
528  prep_status("Setting oldest multixact ID in new cluster");
529 
530  /*
531  * We don't preserve files in this case, but it's important that the
532  * oldest multi is set to the latest value used by the old system, so
533  * that multixact.c returns the empty set for multis that might be
534  * present on disk. We set next multi to the value following that; it
535  * might end up wrapped around (i.e. 0) if the old cluster had
536  * next=MaxMultiXactId, but multixact.c can cope with that just fine.
537  */
538  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
539  "\"%s/pg_resetwal\" -m %u,%u \"%s\"",
544  check_ok();
545  }
546 
547  /* now reset the wal archives in the new cluster */
548  prep_status("Resetting WAL archives");
549  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
550  /* use timeline 1 to match controldata and no WAL history file */
551  "\"%s/pg_resetwal\" -l 00000001%s \"%s\"", new_cluster.bindir,
554  check_ok();
555 }
static void remove_new_subdir(const char *subdir, bool rmtopdir)
Definition: pg_upgrade.c:420
uint32 major_version
Definition: pg_upgrade.h:281
ControlData controldata
Definition: pg_upgrade.h:271
#define GET_MAJOR_VERSION(v)
Definition: pg_upgrade.h:29
char nextxlogfile[25]
Definition: pg_upgrade.h:217
ClusterInfo new_cluster
Definition: pg_upgrade.c:59
uint32 chkpnt_nxtmxoff
Definition: pg_upgrade.h:222
uint32 chkpnt_nxtxid
Definition: pg_upgrade.h:218
uint32 chkpnt_nxtepoch
Definition: pg_upgrade.h:219
void prep_status(const char *fmt,...) pg_attribute_printf(1
ClusterInfo old_cluster
Definition: pg_upgrade.c:59
static void check_ok(void)
Definition: initdb.c:2103
uint32 chkpnt_oldstMulti
Definition: pg_upgrade.h:223
static void copy_subdir_files(const char *old_subdir, const char *new_subdir)
Definition: pg_upgrade.c:437
char * bindir
Definition: pg_upgrade.h:276
uint32 cat_ver
Definition: pg_upgrade.h:216
uint32 chkpnt_nxtmulti
Definition: pg_upgrade.h:221
#define MULTIXACT_FORMATCHANGE_CAT_VER
Definition: pg_upgrade.h:121
#define UTILITY_LOG_FILE
Definition: pg_upgrade.h:37
char * pgdata
Definition: pg_upgrade.h:273
bool exec_prog(const char *log_file, const char *opt_log_file, bool report_error, bool exit_on_error, const char *fmt,...)
Definition: exec.c:80

◆ create_new_objects()

static void create_new_objects ( void  )
static

Definition at line 314 of file pg_upgrade.c.

References ClusterInfo::bindir, check_ok(), cluster_conn_opts(), DB_DUMP_FILE_MASK, DB_DUMP_LOG_FILE_MASK, DbInfo::db_name, DbInfo::db_oid, ClusterInfo::dbarr, DbInfoArr::dbs, end_progress_output(), exec_prog(), get_db_and_rel_infos(), GET_MAJOR_VERSION, ClusterInfo::major_version, MAXPGPATH, DbInfoArr::ndbs, parallel_exec_prog(), pg_log(), PG_STATUS, prep_status(), reap_child(), set_frozenxids(), and snprintf.

Referenced by main().

315 {
316  int dbnum;
317 
318  prep_status("Restoring database schemas in the new cluster\n");
319 
320  /*
321  * We cannot process the template1 database concurrently with others,
322  * because when it's transiently dropped, connection attempts would fail.
323  * So handle it in a separate non-parallelized pass.
324  */
325  for (dbnum = 0; dbnum < old_cluster.dbarr.ndbs; dbnum++)
326  {
327  char sql_file_name[MAXPGPATH],
328  log_file_name[MAXPGPATH];
329  DbInfo *old_db = &old_cluster.dbarr.dbs[dbnum];
330  const char *create_opts;
331 
332  /* Process only template1 in this pass */
333  if (strcmp(old_db->db_name, "template1") != 0)
334  continue;
335 
336  pg_log(PG_STATUS, "%s", old_db->db_name);
337  snprintf(sql_file_name, sizeof(sql_file_name), DB_DUMP_FILE_MASK, old_db->db_oid);
338  snprintf(log_file_name, sizeof(log_file_name), DB_DUMP_LOG_FILE_MASK, old_db->db_oid);
339 
340  /*
341  * template1 and postgres databases will already exist in the target
342  * installation, so tell pg_restore to drop and recreate them;
343  * otherwise we would fail to propagate their database-level
344  * properties.
345  */
346  create_opts = "--clean --create";
347 
348  exec_prog(log_file_name,
349  NULL,
350  true,
351  true,
352  "\"%s/pg_restore\" %s %s --exit-on-error --verbose "
353  "--dbname postgres \"%s\"",
356  create_opts,
357  sql_file_name);
358 
359  break; /* done once we've processed template1 */
360  }
361 
362  for (dbnum = 0; dbnum < old_cluster.dbarr.ndbs; dbnum++)
363  {
364  char sql_file_name[MAXPGPATH],
365  log_file_name[MAXPGPATH];
366  DbInfo *old_db = &old_cluster.dbarr.dbs[dbnum];
367  const char *create_opts;
368 
369  /* Skip template1 in this pass */
370  if (strcmp(old_db->db_name, "template1") == 0)
371  continue;
372 
373  pg_log(PG_STATUS, "%s", old_db->db_name);
374  snprintf(sql_file_name, sizeof(sql_file_name), DB_DUMP_FILE_MASK, old_db->db_oid);
375  snprintf(log_file_name, sizeof(log_file_name), DB_DUMP_LOG_FILE_MASK, old_db->db_oid);
376 
377  /*
378  * template1 and postgres databases will already exist in the target
379  * installation, so tell pg_restore to drop and recreate them;
380  * otherwise we would fail to propagate their database-level
381  * properties.
382  */
383  if (strcmp(old_db->db_name, "postgres") == 0)
384  create_opts = "--clean --create";
385  else
386  create_opts = "--create";
387 
388  parallel_exec_prog(log_file_name,
389  NULL,
390  "\"%s/pg_restore\" %s %s --exit-on-error --verbose "
391  "--dbname template1 \"%s\"",
394  create_opts,
395  sql_file_name);
396  }
397 
398  /* reap all children */
399  while (reap_child(true) == true)
400  ;
401 
403  check_ok();
404 
405  /*
406  * We don't have minmxids for databases or relations in pre-9.3 clusters,
407  * so set those after we have restored the schema.
408  */
410  set_frozenxids(true);
411 
412  /* update new_cluster info now that we have objects in the databases */
414 }
void parallel_exec_prog(const char *log_file, const char *opt_log_file, const char *fmt,...)
Definition: parallel.c:63
uint32 major_version
Definition: pg_upgrade.h:281
#define GET_MAJOR_VERSION(v)
Definition: pg_upgrade.h:29
void end_progress_output(void)
Definition: util.c:44
PGresult char * cluster_conn_opts(ClusterInfo *cluster)
Definition: server.c:91
Oid db_oid
Definition: pg_upgrade.h:192
ClusterInfo new_cluster
Definition: pg_upgrade.c:59
#define MAXPGPATH
void prep_status(const char *fmt,...) pg_attribute_printf(1
ClusterInfo old_cluster
Definition: pg_upgrade.c:59
static void check_ok(void)
Definition: initdb.c:2103
#define DB_DUMP_FILE_MASK
Definition: pg_upgrade.h:33
char * bindir
Definition: pg_upgrade.h:276
static void set_frozenxids(bool minmxid_only)
Definition: pg_upgrade.c:580
DbInfoArr dbarr
Definition: pg_upgrade.h:272
void void pg_log(eLogType type, const char *fmt,...) pg_attribute_printf(2
void get_db_and_rel_infos(ClusterInfo *cluster)
Definition: info.c:313
#define DB_DUMP_LOG_FILE_MASK
Definition: pg_upgrade.h:35
bool reap_child(bool wait_for_child)
Definition: parallel.c:289
char * db_name
Definition: pg_upgrade.h:193
bool exec_prog(const char *log_file, const char *opt_log_file, bool report_error, bool exit_on_error, const char *fmt,...)
Definition: exec.c:80
DbInfo * dbs
Definition: pg_upgrade.h:204
#define snprintf
Definition: port.h:192

◆ main()

int main ( int  argc,
char **  argv 
)

Definition at line 76 of file pg_upgrade.c.

References adjust_data_dir(), ClusterInfo::bindir, check_and_dump_old_cluster(), check_cluster_compatibility(), check_cluster_versions(), check_new_cluster(), check_ok(), ControlData::chkpnt_nxtoid, cleanup(), ClusterInfo::controldata, copy_xact_xlog_xid(), create_new_objects(), create_script_for_cluster_analyze(), create_script_for_old_cluster_deletion(), ClusterInfo::dbarr, disable_old_cluster(), exec_prog(), get_restricted_token(), get_sock_dir(), GetDataDirectoryCreatePerm(), issue_warnings_and_set_wal_level(), output_check_banner(), output_completion_banner(), parseCommandLine(), PG_FATAL, pg_free(), pg_log(), pg_logging_init(), pg_mode_mask, PG_MODE_MASK_OWNER, PG_REPORT, PG_TEXTDOMAIN, ClusterInfo::pgdata, prep_status(), prepare_new_cluster(), prepare_new_globals(), report_clusters_compatible(), set_pglocale_pgservice(), setup(), start_postmaster(), stop_postmaster(), strerror, transfer_all_new_tablespaces(), UserOpts::transfer_mode, TRANSFER_MODE_LINK, user_opts, and UTILITY_LOG_FILE.

77 {
78  char *analyze_script_file_name = NULL;
79  char *deletion_script_file_name = NULL;
80  bool live_check = false;
81 
82  pg_logging_init(argv[0]);
83  set_pglocale_pgservice(argv[0], PG_TEXTDOMAIN("pg_upgrade"));
84 
85  /* Set default restrictive mask until new cluster permissions are read */
86  umask(PG_MODE_MASK_OWNER);
87 
88  parseCommandLine(argc, argv);
89 
91 
94 
95  setup(argv[0], &live_check);
96 
97  output_check_banner(live_check);
98 
100 
101  get_sock_dir(&old_cluster, live_check);
102  get_sock_dir(&new_cluster, false);
103 
104  check_cluster_compatibility(live_check);
105 
106  /* Set mask based on PGDATA permissions */
108  {
109  pg_log(PG_FATAL, "could not read permissions of directory \"%s\": %s\n",
110  new_cluster.pgdata, strerror(errno));
111  exit(1);
112  }
113 
114  umask(pg_mode_mask);
115 
116  check_and_dump_old_cluster(live_check);
117 
118 
119  /* -- NEW -- */
121 
124 
126  "\n"
127  "Performing Upgrade\n"
128  "------------------\n");
129 
131 
132  stop_postmaster(false);
133 
134  /*
135  * Destructive Changes to New Cluster
136  */
137 
139 
140  /* New now using xids of the old system */
141 
142  /* -- NEW -- */
144 
146 
148 
149  stop_postmaster(false);
150 
151  /*
152  * Most failures happen in create_new_objects(), which has completed at
153  * this point. We do this here because it is just before linking, which
154  * will link the old and new cluster data files, preventing the old
155  * cluster from being safely started once the new cluster is started.
156  */
159 
162 
163  /*
164  * Assuming OIDs are only used in system tables, there is no need to
165  * restore the OID counter because we have not transferred any OIDs from
166  * the old system, but we do it anyway just in case. We do it late here
167  * because there is no need to have the schema load use new oids.
168  */
169  prep_status("Setting next OID for new cluster");
170  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
171  "\"%s/pg_resetwal\" -o %u \"%s\"",
174  check_ok();
175 
176  prep_status("Sync data directory to disk");
177  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
178  "\"%s/initdb\" --sync-only \"%s\"", new_cluster.bindir,
180  check_ok();
181 
182  create_script_for_cluster_analyze(&analyze_script_file_name);
183  create_script_for_old_cluster_deletion(&deletion_script_file_name);
184 
186 
188  "\n"
189  "Upgrade Complete\n"
190  "----------------\n");
191 
192  output_completion_banner(analyze_script_file_name,
193  deletion_script_file_name);
194 
195  pg_free(analyze_script_file_name);
196  pg_free(deletion_script_file_name);
197 
198  cleanup();
199 
200  return 0;
201 }
void transfer_all_new_tablespaces(DbInfoArr *old_db_arr, DbInfoArr *new_db_arr, char *old_pgdata, char *new_pgdata)
Definition: relfilenode.c:32
void parseCommandLine(int argc, char *argv[])
Definition: option.c:39
static void cleanup(void)
Definition: pg_upgrade.c:678
ControlData controldata
Definition: pg_upgrade.h:271
void check_cluster_versions(void)
Definition: check.c:250
static void prepare_new_cluster(void)
Definition: pg_upgrade.c:263
void get_sock_dir(ClusterInfo *cluster, bool live_check)
Definition: option.c:465
static void create_new_objects(void)
Definition: pg_upgrade.c:314
void get_restricted_token(void)
uint32 chkpnt_nxtoid
Definition: pg_upgrade.h:220
void check_cluster_compatibility(bool live_check)
Definition: check.c:292
static void adjust_data_dir(void)
Definition: pg_ctl.c:2172
ClusterInfo new_cluster
Definition: pg_upgrade.c:59
void pg_logging_init(const char *argv0)
Definition: logging.c:38
static void prepare_new_globals(void)
Definition: pg_upgrade.c:293
void output_check_banner(bool live_check)
Definition: check.c:62
void prep_status(const char *fmt,...) pg_attribute_printf(1
ClusterInfo old_cluster
Definition: pg_upgrade.c:59
static void check_ok(void)
Definition: initdb.c:2103
void create_script_for_old_cluster_deletion(char **deletion_script_file_name)
Definition: check.c:536
transferMode transfer_mode
Definition: pg_upgrade.h:306
UserOpts user_opts
Definition: option.c:30
char * bindir
Definition: pg_upgrade.h:276
#define PG_TEXTDOMAIN(domain)
Definition: c.h:1121
#define PG_MODE_MASK_OWNER
Definition: file_perm.h:24
static void setup(char *argv0, bool *live_check)
Definition: pg_upgrade.c:205
void stop_postmaster(bool in_atexit)
Definition: server.c:328
DbInfoArr dbarr
Definition: pg_upgrade.h:272
void void pg_log(eLogType type, const char *fmt,...) pg_attribute_printf(2
#define strerror
Definition: port.h:205
void pg_free(void *ptr)
Definition: fe_memutils.c:105
static pgpid_t start_postmaster(void)
Definition: pg_ctl.c:449
#define UTILITY_LOG_FILE
Definition: pg_upgrade.h:37
bool GetDataDirectoryCreatePerm(const char *dataDir)
char * pgdata
Definition: pg_upgrade.h:273
void set_pglocale_pgservice(const char *argv0, const char *app)
Definition: exec.c:565
void disable_old_cluster(void)
Definition: controldata.c:676
void output_completion_banner(char *analyze_script_file_name, char *deletion_script_file_name)
Definition: check.c:219
void create_script_for_cluster_analyze(char **analyze_script_file_name)
Definition: check.c:446
void check_new_cluster(void)
Definition: check.c:151
bool exec_prog(const char *log_file, const char *opt_log_file, bool report_error, bool exit_on_error, const char *fmt,...)
Definition: exec.c:80
void check_and_dump_old_cluster(bool live_check)
Definition: check.c:80
void report_clusters_compatible(void)
Definition: check.c:179
void issue_warnings_and_set_wal_level(void)
Definition: check.c:196
int pg_mode_mask
Definition: file_perm.c:25
static void copy_xact_xlog_xid(void)
Definition: pg_upgrade.c:462

◆ prepare_new_cluster()

static void prepare_new_cluster ( void  )
static

Definition at line 263 of file pg_upgrade.c.

References ClusterInfo::bindir, check_ok(), cluster_conn_opts(), exec_prog(), log_opts, prep_status(), UTILITY_LOG_FILE, and LogOpts::verbose.

Referenced by main().

264 {
265  /*
266  * It would make more sense to freeze after loading the schema, but that
267  * would cause us to lose the frozenids restored by the load. We use
268  * --analyze so autovacuum doesn't update statistics later
269  */
270  prep_status("Analyzing all rows in the new cluster");
271  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
272  "\"%s/vacuumdb\" %s --all --analyze %s",
274  log_opts.verbose ? "--verbose" : "");
275  check_ok();
276 
277  /*
278  * We do freeze after analyze so pg_statistic is also frozen. template0 is
279  * not frozen here, but data rows were frozen by initdb, and we set its
280  * datfrozenxid, relfrozenxids, and relminmxid later to match the new xid
281  * counter later.
282  */
283  prep_status("Freezing all rows in the new cluster");
284  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
285  "\"%s/vacuumdb\" %s --all --freeze %s",
287  log_opts.verbose ? "--verbose" : "");
288  check_ok();
289 }
PGresult char * cluster_conn_opts(ClusterInfo *cluster)
Definition: server.c:91
LogOpts log_opts
Definition: util.c:18
ClusterInfo new_cluster
Definition: pg_upgrade.c:59
void prep_status(const char *fmt,...) pg_attribute_printf(1
static void check_ok(void)
Definition: initdb.c:2103
bool verbose
Definition: pg_upgrade.h:294
char * bindir
Definition: pg_upgrade.h:276
#define UTILITY_LOG_FILE
Definition: pg_upgrade.h:37
bool exec_prog(const char *log_file, const char *opt_log_file, bool report_error, bool exit_on_error, const char *fmt,...)
Definition: exec.c:80

◆ prepare_new_globals()

static void prepare_new_globals ( void  )
static

Definition at line 293 of file pg_upgrade.c.

References ClusterInfo::bindir, check_ok(), cluster_conn_opts(), exec_prog(), EXEC_PSQL_ARGS, GLOBALS_DUMP_FILE, prep_status(), set_frozenxids(), and UTILITY_LOG_FILE.

Referenced by main().

294 {
295  /*
296  * Before we restore anything, set frozenxids of initdb-created tables.
297  */
298  set_frozenxids(false);
299 
300  /*
301  * Now restore global objects (roles and tablespaces).
302  */
303  prep_status("Restoring global objects in the new cluster");
304 
305  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
306  "\"%s/psql\" " EXEC_PSQL_ARGS " %s -f \"%s\"",
309  check_ok();
310 }
PGresult char * cluster_conn_opts(ClusterInfo *cluster)
Definition: server.c:91
ClusterInfo new_cluster
Definition: pg_upgrade.c:59
void prep_status(const char *fmt,...) pg_attribute_printf(1
static void check_ok(void)
Definition: initdb.c:2103
char * bindir
Definition: pg_upgrade.h:276
static void set_frozenxids(bool minmxid_only)
Definition: pg_upgrade.c:580
#define UTILITY_LOG_FILE
Definition: pg_upgrade.h:37
#define EXEC_PSQL_ARGS
Definition: pg_upgrade.h:373
bool exec_prog(const char *log_file, const char *opt_log_file, bool report_error, bool exit_on_error, const char *fmt,...)
Definition: exec.c:80
#define GLOBALS_DUMP_FILE
Definition: pg_upgrade.h:32

◆ remove_new_subdir()

static void remove_new_subdir ( const char *  subdir,
bool  rmtopdir 
)
static

Definition at line 420 of file pg_upgrade.c.

References check_ok(), MAXPGPATH, pg_fatal, ClusterInfo::pgdata, prep_status(), rmtree(), and snprintf.

Referenced by copy_subdir_files(), and copy_xact_xlog_xid().

421 {
422  char new_path[MAXPGPATH];
423 
424  prep_status("Deleting files from new %s", subdir);
425 
426  snprintf(new_path, sizeof(new_path), "%s/%s", new_cluster.pgdata, subdir);
427  if (!rmtree(new_path, rmtopdir))
428  pg_fatal("could not delete directory \"%s\"\n", new_path);
429 
430  check_ok();
431 }
ClusterInfo new_cluster
Definition: pg_upgrade.c:59
#define MAXPGPATH
void prep_status(const char *fmt,...) pg_attribute_printf(1
static void check_ok(void)
Definition: initdb.c:2103
bool rmtree(const char *path, bool rmtopdir)
Definition: rmtree.c:42
char * pgdata
Definition: pg_upgrade.h:273
#define snprintf
Definition: port.h:192
#define pg_fatal(...)
Definition: logging.h:23

◆ set_frozenxids()

static void set_frozenxids ( bool  minmxid_only)
static

Definition at line 580 of file pg_upgrade.c.

References check_ok(), ControlData::chkpnt_nxtmulti, ControlData::chkpnt_nxtxid, conn, connectToServer(), ClusterInfo::controldata, CppAsString2, datallowconn, datname, executeQueryOrDie(), PQclear(), PQfinish(), PQfnumber(), PQgetvalue(), PQntuples(), prep_status(), and quote_identifier().

Referenced by create_new_objects(), and prepare_new_globals().

581 {
582  int dbnum;
583  PGconn *conn,
584  *conn_template1;
585  PGresult *dbres;
586  int ntups;
587  int i_datname;
588  int i_datallowconn;
589 
590  if (!minmxid_only)
591  prep_status("Setting frozenxid and minmxid counters in new cluster");
592  else
593  prep_status("Setting minmxid counter in new cluster");
594 
595  conn_template1 = connectToServer(&new_cluster, "template1");
596 
597  if (!minmxid_only)
598  /* set pg_database.datfrozenxid */
599  PQclear(executeQueryOrDie(conn_template1,
600  "UPDATE pg_catalog.pg_database "
601  "SET datfrozenxid = '%u'",
603 
604  /* set pg_database.datminmxid */
605  PQclear(executeQueryOrDie(conn_template1,
606  "UPDATE pg_catalog.pg_database "
607  "SET datminmxid = '%u'",
609 
610  /* get database names */
611  dbres = executeQueryOrDie(conn_template1,
612  "SELECT datname, datallowconn "
613  "FROM pg_catalog.pg_database");
614 
615  i_datname = PQfnumber(dbres, "datname");
616  i_datallowconn = PQfnumber(dbres, "datallowconn");
617 
618  ntups = PQntuples(dbres);
619  for (dbnum = 0; dbnum < ntups; dbnum++)
620  {
621  char *datname = PQgetvalue(dbres, dbnum, i_datname);
622  char *datallowconn = PQgetvalue(dbres, dbnum, i_datallowconn);
623 
624  /*
625  * We must update databases where datallowconn = false, e.g.
626  * template0, because autovacuum increments their datfrozenxids,
627  * relfrozenxids, and relminmxid even if autovacuum is turned off, and
628  * even though all the data rows are already frozen. To enable this,
629  * we temporarily change datallowconn.
630  */
631  if (strcmp(datallowconn, "f") == 0)
632  PQclear(executeQueryOrDie(conn_template1,
633  "ALTER DATABASE %s ALLOW_CONNECTIONS = true",
634  quote_identifier(datname)));
635 
636  conn = connectToServer(&new_cluster, datname);
637 
638  if (!minmxid_only)
639  /* set pg_class.relfrozenxid */
641  "UPDATE pg_catalog.pg_class "
642  "SET relfrozenxid = '%u' "
643  /* only heap, materialized view, and TOAST are vacuumed */
644  "WHERE relkind IN ("
645  CppAsString2(RELKIND_RELATION) ", "
646  CppAsString2(RELKIND_MATVIEW) ", "
647  CppAsString2(RELKIND_TOASTVALUE) ")",
649 
650  /* set pg_class.relminmxid */
652  "UPDATE pg_catalog.pg_class "
653  "SET relminmxid = '%u' "
654  /* only heap, materialized view, and TOAST are vacuumed */
655  "WHERE relkind IN ("
656  CppAsString2(RELKIND_RELATION) ", "
657  CppAsString2(RELKIND_MATVIEW) ", "
658  CppAsString2(RELKIND_TOASTVALUE) ")",
660  PQfinish(conn);
661 
662  /* Reset datallowconn flag */
663  if (strcmp(datallowconn, "f") == 0)
664  PQclear(executeQueryOrDie(conn_template1,
665  "ALTER DATABASE %s ALLOW_CONNECTIONS = false",
666  quote_identifier(datname)));
667  }
668 
669  PQclear(dbres);
670 
671  PQfinish(conn_template1);
672 
673  check_ok();
674 }
const char * quote_identifier(const char *ident)
Definition: ruleutils.c:10607
char * PQgetvalue(const PGresult *res, int tup_num, int field_num)
Definition: fe-exec.c:3164
ControlData controldata
Definition: pg_upgrade.h:271
PGresult * executeQueryOrDie(PGconn *conn, const char *fmt,...) pg_attribute_printf(2
void PQfinish(PGconn *conn)
Definition: fe-connect.c:4080
NameData datname
Definition: pg_database.h:35
int PQntuples(const PGresult *res)
Definition: fe-exec.c:2770
ClusterInfo new_cluster
Definition: pg_upgrade.c:59
bool datallowconn
Definition: pg_database.h:53
uint32 chkpnt_nxtxid
Definition: pg_upgrade.h:218
PGconn * conn
Definition: streamutil.c:56
void prep_status(const char *fmt,...) pg_attribute_printf(1
ClusterInfo old_cluster
Definition: pg_upgrade.c:59
static void check_ok(void)
Definition: initdb.c:2103
PGconn * connectToServer(ClusterInfo *cluster, const char *db_name)
Definition: server.c:28
#define CppAsString2(x)
Definition: c.h:224
uint32 chkpnt_nxtmulti
Definition: pg_upgrade.h:221
int PQfnumber(const PGresult *res, const char *field_name)
Definition: fe-exec.c:2878
void PQclear(PGresult *res)
Definition: fe-exec.c:695

◆ setup()

static void setup ( char *  argv0,
bool live_check 
)
static

Definition at line 205 of file pg_upgrade.c.

References canonicalize_path(), UserOpts::check, check_pghost_envvar(), exec_path, OSInfo::exec_path, find_my_exec(), last_dir_separator(), MAXPGPATH, pg_fatal, pg_strdup(), ClusterInfo::pgdata, pid_lock_file_exists(), start_postmaster(), stop_postmaster(), user_opts, and verify_directories().

Referenced by main().

206 {
207  char exec_path[MAXPGPATH]; /* full path to my executable */
208 
209  /*
210  * make sure the user has a clean environment, otherwise, we may confuse
211  * libpq when we connect to one (or both) of the servers.
212  */
214 
216 
217  /* no postmasters should be running, except for a live check */
219  {
220  /*
221  * If we have a postmaster.pid file, try to start the server. If it
222  * starts, the pid file was stale, so stop the server. If it doesn't
223  * start, assume the server is running. If the pid file is left over
224  * from a server crash, this also allows any committed transactions
225  * stored in the WAL to be replayed so they are not lost, because WAL
226  * files are not transferred from old to new servers. We later check
227  * for a clean shutdown.
228  */
229  if (start_postmaster(&old_cluster, false))
230  stop_postmaster(false);
231  else
232  {
233  if (!user_opts.check)
234  pg_fatal("There seems to be a postmaster servicing the old cluster.\n"
235  "Please shutdown that postmaster and try again.\n");
236  else
237  *live_check = true;
238  }
239  }
240 
241  /* same goes for the new postmaster */
243  {
244  if (start_postmaster(&new_cluster, false))
245  stop_postmaster(false);
246  else
247  pg_fatal("There seems to be a postmaster servicing the new cluster.\n"
248  "Please shutdown that postmaster and try again.\n");
249  }
250 
251  /* get path to pg_upgrade executable */
252  if (find_my_exec(argv0, exec_path) < 0)
253  pg_fatal("%s: could not find own program executable\n", argv0);
254 
255  /* Trim off program name and keep just path */
256  *last_dir_separator(exec_path) = '\0';
257  canonicalize_path(exec_path);
258  os_info.exec_path = pg_strdup(exec_path);
259 }
static char * argv0
Definition: pg_ctl.c:96
bool pid_lock_file_exists(const char *datadir)
Definition: exec.c:219
void canonicalize_path(char *path)
Definition: path.c:254
ClusterInfo new_cluster
Definition: pg_upgrade.c:59
void check_pghost_envvar(void)
Definition: server.c:355
#define MAXPGPATH
int find_my_exec(const char *argv0, char *retpath)
Definition: exec.c:129
ClusterInfo old_cluster
Definition: pg_upgrade.c:59
char * pg_strdup(const char *in)
Definition: fe_memutils.c:85
UserOpts user_opts
Definition: option.c:30
void stop_postmaster(bool in_atexit)
Definition: server.c:328
char * last_dir_separator(const char *filename)
Definition: path.c:138
void verify_directories(void)
Definition: exec.c:250
static char * exec_path
Definition: pg_ctl.c:91
bool check
Definition: pg_upgrade.h:304
static pgpid_t start_postmaster(void)
Definition: pg_ctl.c:449
char * pgdata
Definition: pg_upgrade.h:273
OSInfo os_info
Definition: pg_upgrade.c:61
#define pg_fatal(...)
Definition: logging.h:23
char * exec_path
Definition: pg_upgrade.h:323

Variable Documentation

◆ new_cluster

◆ old_cluster

◆ os_info

◆ output_files

char* output_files[]
Initial value:
= {
NULL
}
#define INTERNAL_LOG_FILE
Definition: pg_upgrade.h:38
#define SERVER_LOG_FILE
Definition: pg_upgrade.h:36
#define UTILITY_LOG_FILE
Definition: pg_upgrade.h:37

Definition at line 63 of file pg_upgrade.c.

Referenced by cleanup(), and parseCommandLine().