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/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 674 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().

675 {
676  fclose(log_opts.internal);
677 
678  /* Remove dump and log files? */
679  if (!log_opts.retain)
680  {
681  int dbnum;
682  char **filename;
683 
684  for (filename = output_files; *filename != NULL; filename++)
685  unlink(*filename);
686 
687  /* remove dump files */
688  unlink(GLOBALS_DUMP_FILE);
689 
690  if (old_cluster.dbarr.dbs)
691  for (dbnum = 0; dbnum < old_cluster.dbarr.ndbs; dbnum++)
692  {
693  char sql_file_name[MAXPGPATH],
694  log_file_name[MAXPGPATH];
695  DbInfo *old_db = &old_cluster.dbarr.dbs[dbnum];
696 
697  snprintf(sql_file_name, sizeof(sql_file_name), DB_DUMP_FILE_MASK, old_db->db_oid);
698  unlink(sql_file_name);
699 
700  snprintf(log_file_name, sizeof(log_file_name), DB_DUMP_LOG_FILE_MASK, old_db->db_oid);
701  unlink(log_file_name);
702  }
703  }
704 }
int snprintf(char *str, size_t count, const char *fmt,...) pg_attribute_printf(3
LogOpts log_opts
Definition: util.c:18
Oid db_oid
Definition: pg_upgrade.h:186
#define MAXPGPATH
char * output_files[]
Definition: pg_upgrade.c:61
ClusterInfo old_cluster
Definition: pg_upgrade.c:57
#define DB_DUMP_FILE_MASK
Definition: pg_upgrade.h:33
DbInfoArr dbarr
Definition: pg_upgrade.h:265
FILE * internal
Definition: pg_upgrade.h:286
#define DB_DUMP_LOG_FILE_MASK
Definition: pg_upgrade.h:35
static char * filename
Definition: pg_dumpall.c:88
#define GLOBALS_DUMP_FILE
Definition: pg_upgrade.h:32
DbInfo * dbs
Definition: pg_upgrade.h:198
bool retain
Definition: pg_upgrade.h:288

◆ copy_subdir_files()

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

Definition at line 433 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().

434 {
435  char old_path[MAXPGPATH];
436  char new_path[MAXPGPATH];
437 
438  remove_new_subdir(new_subdir, true);
439 
440  snprintf(old_path, sizeof(old_path), "%s/%s", old_cluster.pgdata, old_subdir);
441  snprintf(new_path, sizeof(new_path), "%s/%s", new_cluster.pgdata, new_subdir);
442 
443  prep_status("Copying old %s to new server", old_subdir);
444 
445  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
446 #ifndef WIN32
447  "cp -Rf \"%s\" \"%s\"",
448 #else
449  /* flags: everything, no confirm, quiet, overwrite read-only */
450  "xcopy /e /y /q /r \"%s\" \"%s\\\"",
451 #endif
452  old_path, new_path);
453 
454  check_ok();
455 }
static void remove_new_subdir(const char *subdir, bool rmtopdir)
Definition: pg_upgrade.c:416
int snprintf(char *str, size_t count, const char *fmt,...) pg_attribute_printf(3
ClusterInfo new_cluster
Definition: pg_upgrade.c:57
#define MAXPGPATH
void prep_status(const char *fmt,...) pg_attribute_printf(1
ClusterInfo old_cluster
Definition: pg_upgrade.c:57
static void check_ok(void)
Definition: initdb.c:2132
#define UTILITY_LOG_FILE
Definition: pg_upgrade.h:37
char * pgdata
Definition: pg_upgrade.h:266
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

◆ copy_xact_xlog_xid()

static void copy_xact_xlog_xid ( void  )
static

Definition at line 458 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().

459 {
460  /*
461  * Copy old commit logs to new data dir. pg_clog has been renamed to
462  * pg_xact in post-10 clusters.
463  */
465  "pg_clog" : "pg_xact",
467  "pg_clog" : "pg_xact");
468 
469  /* set the next transaction id and epoch of the new cluster */
470  prep_status("Setting next transaction ID and epoch for new cluster");
471  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
472  "\"%s/pg_resetwal\" -f -x %u \"%s\"",
475  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
476  "\"%s/pg_resetwal\" -f -e %u \"%s\"",
479  /* must reset commit timestamp limits also */
480  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
481  "\"%s/pg_resetwal\" -f -c %u,%u \"%s\"",
486  check_ok();
487 
488  /*
489  * If the old server is before the MULTIXACT_FORMATCHANGE_CAT_VER change
490  * (see pg_upgrade.h) and the new server is after, then we don't copy
491  * pg_multixact files, but we need to reset pg_control so that the new
492  * server doesn't attempt to read multis older than the cutoff value.
493  */
496  {
497  copy_subdir_files("pg_multixact/offsets", "pg_multixact/offsets");
498  copy_subdir_files("pg_multixact/members", "pg_multixact/members");
499 
500  prep_status("Setting next multixact ID and offset for new cluster");
501 
502  /*
503  * we preserve all files and contents, so we must preserve both "next"
504  * counters here and the oldest multi present on system.
505  */
506  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
507  "\"%s/pg_resetwal\" -O %u -m %u,%u \"%s\"",
513  check_ok();
514  }
516  {
517  /*
518  * Remove offsets/0000 file created by initdb that no longer matches
519  * the new multi-xid value. "members" starts at zero so no need to
520  * remove it.
521  */
522  remove_new_subdir("pg_multixact/offsets", false);
523 
524  prep_status("Setting oldest multixact ID in new cluster");
525 
526  /*
527  * We don't preserve files in this case, but it's important that the
528  * oldest multi is set to the latest value used by the old system, so
529  * that multixact.c returns the empty set for multis that might be
530  * present on disk. We set next multi to the value following that; it
531  * might end up wrapped around (i.e. 0) if the old cluster had
532  * next=MaxMultiXactId, but multixact.c can cope with that just fine.
533  */
534  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
535  "\"%s/pg_resetwal\" -m %u,%u \"%s\"",
540  check_ok();
541  }
542 
543  /* now reset the wal archives in the new cluster */
544  prep_status("Resetting WAL archives");
545  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
546  /* use timeline 1 to match controldata and no WAL history file */
547  "\"%s/pg_resetwal\" -l 00000001%s \"%s\"", new_cluster.bindir,
550  check_ok();
551 }
static void remove_new_subdir(const char *subdir, bool rmtopdir)
Definition: pg_upgrade.c:416
uint32 major_version
Definition: pg_upgrade.h:274
ControlData controldata
Definition: pg_upgrade.h:264
#define GET_MAJOR_VERSION(v)
Definition: pg_upgrade.h:29
char nextxlogfile[25]
Definition: pg_upgrade.h:211
ClusterInfo new_cluster
Definition: pg_upgrade.c:57
uint32 chkpnt_nxtmxoff
Definition: pg_upgrade.h:216
uint32 chkpnt_nxtxid
Definition: pg_upgrade.h:212
uint32 chkpnt_nxtepoch
Definition: pg_upgrade.h:213
void prep_status(const char *fmt,...) pg_attribute_printf(1
ClusterInfo old_cluster
Definition: pg_upgrade.c:57
static void check_ok(void)
Definition: initdb.c:2132
uint32 chkpnt_oldstMulti
Definition: pg_upgrade.h:217
static void copy_subdir_files(const char *old_subdir, const char *new_subdir)
Definition: pg_upgrade.c:433
char * bindir
Definition: pg_upgrade.h:269
uint32 cat_ver
Definition: pg_upgrade.h:210
uint32 chkpnt_nxtmulti
Definition: pg_upgrade.h:215
#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:266
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 310 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().

311 {
312  int dbnum;
313 
314  prep_status("Restoring database schemas in the new cluster\n");
315 
316  /*
317  * We cannot process the template1 database concurrently with others,
318  * because when it's transiently dropped, connection attempts would fail.
319  * So handle it in a separate non-parallelized pass.
320  */
321  for (dbnum = 0; dbnum < old_cluster.dbarr.ndbs; dbnum++)
322  {
323  char sql_file_name[MAXPGPATH],
324  log_file_name[MAXPGPATH];
325  DbInfo *old_db = &old_cluster.dbarr.dbs[dbnum];
326  const char *create_opts;
327 
328  /* Process only template1 in this pass */
329  if (strcmp(old_db->db_name, "template1") != 0)
330  continue;
331 
332  pg_log(PG_STATUS, "%s", old_db->db_name);
333  snprintf(sql_file_name, sizeof(sql_file_name), DB_DUMP_FILE_MASK, old_db->db_oid);
334  snprintf(log_file_name, sizeof(log_file_name), DB_DUMP_LOG_FILE_MASK, old_db->db_oid);
335 
336  /*
337  * template1 and postgres databases will already exist in the target
338  * installation, so tell pg_restore to drop and recreate them;
339  * otherwise we would fail to propagate their database-level
340  * properties.
341  */
342  create_opts = "--clean --create";
343 
344  exec_prog(log_file_name,
345  NULL,
346  true,
347  true,
348  "\"%s/pg_restore\" %s %s --exit-on-error --verbose "
349  "--dbname postgres \"%s\"",
352  create_opts,
353  sql_file_name);
354 
355  break; /* done once we've processed template1 */
356  }
357 
358  for (dbnum = 0; dbnum < old_cluster.dbarr.ndbs; dbnum++)
359  {
360  char sql_file_name[MAXPGPATH],
361  log_file_name[MAXPGPATH];
362  DbInfo *old_db = &old_cluster.dbarr.dbs[dbnum];
363  const char *create_opts;
364 
365  /* Skip template1 in this pass */
366  if (strcmp(old_db->db_name, "template1") == 0)
367  continue;
368 
369  pg_log(PG_STATUS, "%s", old_db->db_name);
370  snprintf(sql_file_name, sizeof(sql_file_name), DB_DUMP_FILE_MASK, old_db->db_oid);
371  snprintf(log_file_name, sizeof(log_file_name), DB_DUMP_LOG_FILE_MASK, old_db->db_oid);
372 
373  /*
374  * template1 and postgres databases will already exist in the target
375  * installation, so tell pg_restore to drop and recreate them;
376  * otherwise we would fail to propagate their database-level
377  * properties.
378  */
379  if (strcmp(old_db->db_name, "postgres") == 0)
380  create_opts = "--clean --create";
381  else
382  create_opts = "--create";
383 
384  parallel_exec_prog(log_file_name,
385  NULL,
386  "\"%s/pg_restore\" %s %s --exit-on-error --verbose "
387  "--dbname template1 \"%s\"",
390  create_opts,
391  sql_file_name);
392  }
393 
394  /* reap all children */
395  while (reap_child(true) == true)
396  ;
397 
399  check_ok();
400 
401  /*
402  * We don't have minmxids for databases or relations in pre-9.3 clusters,
403  * so set those after we have restored the schema.
404  */
406  set_frozenxids(true);
407 
408  /* update new_cluster info now that we have objects in the databases */
410 }
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:274
#define GET_MAJOR_VERSION(v)
Definition: pg_upgrade.h:29
void end_progress_output(void)
Definition: util.c:44
int snprintf(char *str, size_t count, const char *fmt,...) pg_attribute_printf(3
PGresult char * cluster_conn_opts(ClusterInfo *cluster)
Definition: server.c:91
Oid db_oid
Definition: pg_upgrade.h:186
ClusterInfo new_cluster
Definition: pg_upgrade.c:57
#define MAXPGPATH
void prep_status(const char *fmt,...) pg_attribute_printf(1
ClusterInfo old_cluster
Definition: pg_upgrade.c:57
void pg_log(eLogType type, const char *fmt,...)
Definition: logging.c:69
static void check_ok(void)
Definition: initdb.c:2132
#define DB_DUMP_FILE_MASK
Definition: pg_upgrade.h:33
char * bindir
Definition: pg_upgrade.h:269
static void set_frozenxids(bool minmxid_only)
Definition: pg_upgrade.c:576
DbInfoArr dbarr
Definition: pg_upgrade.h:265
void get_db_and_rel_infos(ClusterInfo *cluster)
Definition: info.c:311
#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:187
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:198

◆ main()

int main ( int  argc,
char **  argv 
)

Definition at line 74 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_mode_mask, PG_MODE_MASK_OWNER, PG_REPORT, PG_TEXTDOMAIN, ClusterInfo::pgdata, prep_status(), prepare_new_cluster(), prepare_new_globals(), OSInfo::progname, 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.

75 {
76  char *analyze_script_file_name = NULL;
77  char *deletion_script_file_name = NULL;
78  bool live_check = false;
79 
80  set_pglocale_pgservice(argv[0], PG_TEXTDOMAIN("pg_upgrade"));
81 
82  /* Set default restrictive mask until new cluster permissions are read */
83  umask(PG_MODE_MASK_OWNER);
84 
85  parseCommandLine(argc, argv);
86 
88 
91 
92  setup(argv[0], &live_check);
93 
94  output_check_banner(live_check);
95 
97 
98  get_sock_dir(&old_cluster, live_check);
99  get_sock_dir(&new_cluster, false);
100 
101  check_cluster_compatibility(live_check);
102 
103  /* Set mask based on PGDATA permissions */
105  {
106  pg_log(PG_FATAL, "could not read permissions of directory \"%s\": %s\n",
107  new_cluster.pgdata, strerror(errno));
108  exit(1);
109  }
110 
111  umask(pg_mode_mask);
112 
113  check_and_dump_old_cluster(live_check);
114 
115 
116  /* -- NEW -- */
118 
121 
123  "\n"
124  "Performing Upgrade\n"
125  "------------------\n");
126 
128 
129  stop_postmaster(false);
130 
131  /*
132  * Destructive Changes to New Cluster
133  */
134 
136 
137  /* New now using xids of the old system */
138 
139  /* -- NEW -- */
141 
143 
145 
146  stop_postmaster(false);
147 
148  /*
149  * Most failures happen in create_new_objects(), which has completed at
150  * this point. We do this here because it is just before linking, which
151  * will link the old and new cluster data files, preventing the old
152  * cluster from being safely started once the new cluster is started.
153  */
156 
159 
160  /*
161  * Assuming OIDs are only used in system tables, there is no need to
162  * restore the OID counter because we have not transferred any OIDs from
163  * the old system, but we do it anyway just in case. We do it late here
164  * because there is no need to have the schema load use new oids.
165  */
166  prep_status("Setting next OID for new cluster");
167  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
168  "\"%s/pg_resetwal\" -o %u \"%s\"",
171  check_ok();
172 
173  prep_status("Sync data directory to disk");
174  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
175  "\"%s/initdb\" --sync-only \"%s\"", new_cluster.bindir,
177  check_ok();
178 
179  create_script_for_cluster_analyze(&analyze_script_file_name);
180  create_script_for_old_cluster_deletion(&deletion_script_file_name);
181 
183 
185  "\n"
186  "Upgrade Complete\n"
187  "----------------\n");
188 
189  output_completion_banner(analyze_script_file_name,
190  deletion_script_file_name);
191 
192  pg_free(analyze_script_file_name);
193  pg_free(deletion_script_file_name);
194 
195  cleanup();
196 
197  return 0;
198 }
void transfer_all_new_tablespaces(DbInfoArr *old_db_arr, DbInfoArr *new_db_arr, char *old_pgdata, char *new_pgdata)
Definition: relfilenode.c:30
void parseCommandLine(int argc, char *argv[])
Definition: option.c:38
static void cleanup(void)
Definition: pg_upgrade.c:674
ControlData controldata
Definition: pg_upgrade.h:264
void check_cluster_versions(void)
Definition: check.c:233
static void prepare_new_cluster(void)
Definition: pg_upgrade.c:259
void get_sock_dir(ClusterInfo *cluster, bool live_check)
Definition: option.c:447
static void create_new_objects(void)
Definition: pg_upgrade.c:310
uint32 chkpnt_nxtoid
Definition: pg_upgrade.h:214
void check_cluster_compatibility(bool live_check)
Definition: check.c:275
static void adjust_data_dir(void)
Definition: pg_ctl.c:2061
void get_restricted_token(const char *progname)
ClusterInfo new_cluster
Definition: pg_upgrade.c:57
static void prepare_new_globals(void)
Definition: pg_upgrade.c:289
void output_check_banner(bool live_check)
Definition: check.c:61
void prep_status(const char *fmt,...) pg_attribute_printf(1
ClusterInfo old_cluster
Definition: pg_upgrade.c:57
void pg_log(eLogType type, const char *fmt,...)
Definition: logging.c:69
static void check_ok(void)
Definition: initdb.c:2132
void create_script_for_old_cluster_deletion(char **deletion_script_file_name)
Definition: check.c:519
transferMode transfer_mode
Definition: pg_upgrade.h:299
UserOpts user_opts
Definition: option.c:29
char * bindir
Definition: pg_upgrade.h:269
#define PG_TEXTDOMAIN(domain)
Definition: c.h:1054
#define PG_MODE_MASK_OWNER
Definition: file_perm.h:24
static void setup(char *argv0, bool *live_check)
Definition: pg_upgrade.c:202
void stop_postmaster(bool in_atexit)
Definition: server.c:328
DbInfoArr dbarr
Definition: pg_upgrade.h:265
const char * progname
Definition: pg_upgrade.h:309
void pg_free(void *ptr)
Definition: fe_memutils.c:105
static pgpid_t start_postmaster(void)
Definition: pg_ctl.c:444
#define UTILITY_LOG_FILE
Definition: pg_upgrade.h:37
bool GetDataDirectoryCreatePerm(const char *dataDir)
char * pgdata
Definition: pg_upgrade.h:266
void set_pglocale_pgservice(const char *argv0, const char *app)
Definition: exec.c:550
void disable_old_cluster(void)
Definition: controldata.c:609
const char * strerror(int errnum)
Definition: strerror.c:19
OSInfo os_info
Definition: pg_upgrade.c:59
void output_completion_banner(char *analyze_script_file_name, char *deletion_script_file_name)
Definition: check.c:202
void create_script_for_cluster_analyze(char **analyze_script_file_name)
Definition: check.c:429
void check_new_cluster(void)
Definition: check.c:143
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:79
void report_clusters_compatible(void)
Definition: check.c:162
void issue_warnings_and_set_wal_level(void)
Definition: check.c:179
int pg_mode_mask
Definition: file_perm.c:25
static void copy_xact_xlog_xid(void)
Definition: pg_upgrade.c:458

◆ prepare_new_cluster()

static void prepare_new_cluster ( void  )
static

Definition at line 259 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().

260 {
261  /*
262  * It would make more sense to freeze after loading the schema, but that
263  * would cause us to lose the frozenids restored by the load. We use
264  * --analyze so autovacuum doesn't update statistics later
265  */
266  prep_status("Analyzing all rows in the new cluster");
267  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
268  "\"%s/vacuumdb\" %s --all --analyze %s",
270  log_opts.verbose ? "--verbose" : "");
271  check_ok();
272 
273  /*
274  * We do freeze after analyze so pg_statistic is also frozen. template0 is
275  * not frozen here, but data rows were frozen by initdb, and we set its
276  * datfrozenxid, relfrozenxids, and relminmxid later to match the new xid
277  * counter later.
278  */
279  prep_status("Freezing all rows in the new cluster");
280  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
281  "\"%s/vacuumdb\" %s --all --freeze %s",
283  log_opts.verbose ? "--verbose" : "");
284  check_ok();
285 }
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:57
void prep_status(const char *fmt,...) pg_attribute_printf(1
static void check_ok(void)
Definition: initdb.c:2132
bool verbose
Definition: pg_upgrade.h:287
char * bindir
Definition: pg_upgrade.h:269
#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 289 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().

290 {
291  /*
292  * Before we restore anything, set frozenxids of initdb-created tables.
293  */
294  set_frozenxids(false);
295 
296  /*
297  * Now restore global objects (roles and tablespaces).
298  */
299  prep_status("Restoring global objects in the new cluster");
300 
301  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
302  "\"%s/psql\" " EXEC_PSQL_ARGS " %s -f \"%s\"",
305  check_ok();
306 }
PGresult char * cluster_conn_opts(ClusterInfo *cluster)
Definition: server.c:91
ClusterInfo new_cluster
Definition: pg_upgrade.c:57
void prep_status(const char *fmt,...) pg_attribute_printf(1
static void check_ok(void)
Definition: initdb.c:2132
char * bindir
Definition: pg_upgrade.h:269
static void set_frozenxids(bool minmxid_only)
Definition: pg_upgrade.c:576
#define UTILITY_LOG_FILE
Definition: pg_upgrade.h:37
#define EXEC_PSQL_ARGS
Definition: pg_upgrade.h:360
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 416 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().

417 {
418  char new_path[MAXPGPATH];
419 
420  prep_status("Deleting files from new %s", subdir);
421 
422  snprintf(new_path, sizeof(new_path), "%s/%s", new_cluster.pgdata, subdir);
423  if (!rmtree(new_path, rmtopdir))
424  pg_fatal("could not delete directory \"%s\"\n", new_path);
425 
426  check_ok();
427 }
int snprintf(char *str, size_t count, const char *fmt,...) pg_attribute_printf(3
void pg_fatal(const char *fmt,...)
Definition: logging.c:83
ClusterInfo new_cluster
Definition: pg_upgrade.c:57
#define MAXPGPATH
void prep_status(const char *fmt,...) pg_attribute_printf(1
static void check_ok(void)
Definition: initdb.c:2132
bool rmtree(const char *path, bool rmtopdir)
Definition: rmtree.c:36
char * pgdata
Definition: pg_upgrade.h:266

◆ set_frozenxids()

static void set_frozenxids ( bool  minmxid_only)
static

Definition at line 576 of file pg_upgrade.c.

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

Referenced by create_new_objects(), and prepare_new_globals().

577 {
578  int dbnum;
579  PGconn *conn,
580  *conn_template1;
581  PGresult *dbres;
582  int ntups;
583  int i_datname;
584  int i_datallowconn;
585 
586  if (!minmxid_only)
587  prep_status("Setting frozenxid and minmxid counters in new cluster");
588  else
589  prep_status("Setting minmxid counter in new cluster");
590 
591  conn_template1 = connectToServer(&new_cluster, "template1");
592 
593  if (!minmxid_only)
594  /* set pg_database.datfrozenxid */
595  PQclear(executeQueryOrDie(conn_template1,
596  "UPDATE pg_catalog.pg_database "
597  "SET datfrozenxid = '%u'",
599 
600  /* set pg_database.datminmxid */
601  PQclear(executeQueryOrDie(conn_template1,
602  "UPDATE pg_catalog.pg_database "
603  "SET datminmxid = '%u'",
605 
606  /* get database names */
607  dbres = executeQueryOrDie(conn_template1,
608  "SELECT datname, datallowconn "
609  "FROM pg_catalog.pg_database");
610 
611  i_datname = PQfnumber(dbres, "datname");
612  i_datallowconn = PQfnumber(dbres, "datallowconn");
613 
614  ntups = PQntuples(dbres);
615  for (dbnum = 0; dbnum < ntups; dbnum++)
616  {
617  char *datname = PQgetvalue(dbres, dbnum, i_datname);
618  char *datallowconn = PQgetvalue(dbres, dbnum, i_datallowconn);
619 
620  /*
621  * We must update databases where datallowconn = false, e.g.
622  * template0, because autovacuum increments their datfrozenxids,
623  * relfrozenxids, and relminmxid even if autovacuum is turned off, and
624  * even though all the data rows are already frozen. To enable this,
625  * we temporarily change datallowconn.
626  */
627  if (strcmp(datallowconn, "f") == 0)
628  PQclear(executeQueryOrDie(conn_template1,
629  "ALTER DATABASE %s ALLOW_CONNECTIONS = true",
630  quote_identifier(datname)));
631 
632  conn = connectToServer(&new_cluster, datname);
633 
634  if (!minmxid_only)
635  /* set pg_class.relfrozenxid */
637  "UPDATE pg_catalog.pg_class "
638  "SET relfrozenxid = '%u' "
639  /* only heap, materialized view, and TOAST are vacuumed */
640  "WHERE relkind IN ("
641  CppAsString2(RELKIND_RELATION) ", "
642  CppAsString2(RELKIND_MATVIEW) ", "
643  CppAsString2(RELKIND_TOASTVALUE) ")",
645 
646  /* set pg_class.relminmxid */
648  "UPDATE pg_catalog.pg_class "
649  "SET relminmxid = '%u' "
650  /* only heap, materialized view, and TOAST are vacuumed */
651  "WHERE relkind IN ("
652  CppAsString2(RELKIND_RELATION) ", "
653  CppAsString2(RELKIND_MATVIEW) ", "
654  CppAsString2(RELKIND_TOASTVALUE) ")",
656  PQfinish(conn);
657 
658  /* Reset datallowconn flag */
659  if (strcmp(datallowconn, "f") == 0)
660  PQclear(executeQueryOrDie(conn_template1,
661  "ALTER DATABASE %s ALLOW_CONNECTIONS = false",
662  quote_identifier(datname)));
663  }
664 
665  PQclear(dbres);
666 
667  PQfinish(conn_template1);
668 
669  check_ok();
670 }
const char * quote_identifier(const char *ident)
Definition: ruleutils.c:10488
char * PQgetvalue(const PGresult *res, int tup_num, int field_num)
Definition: fe-exec.c:3118
ControlData controldata
Definition: pg_upgrade.h:264
PGresult * executeQueryOrDie(PGconn *conn, const char *fmt,...) pg_attribute_printf(2
void PQfinish(PGconn *conn)
Definition: fe-connect.c:3638
int PQntuples(const PGresult *res)
Definition: fe-exec.c:2724
ClusterInfo new_cluster
Definition: pg_upgrade.c:57
bool datallowconn
Definition: pg_database.h:37
uint32 chkpnt_nxtxid
Definition: pg_upgrade.h:212
PGconn * conn
Definition: streamutil.c:55
void prep_status(const char *fmt,...) pg_attribute_printf(1
ClusterInfo old_cluster
Definition: pg_upgrade.c:57
static void check_ok(void)
Definition: initdb.c:2132
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:215
int PQfnumber(const PGresult *res, const char *field_name)
Definition: fe-exec.c:2832
void PQclear(PGresult *res)
Definition: fe-exec.c:671

◆ setup()

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

Definition at line 202 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().

203 {
204  char exec_path[MAXPGPATH]; /* full path to my executable */
205 
206  /*
207  * make sure the user has a clean environment, otherwise, we may confuse
208  * libpq when we connect to one (or both) of the servers.
209  */
211 
213 
214  /* no postmasters should be running, except for a live check */
216  {
217  /*
218  * If we have a postmaster.pid file, try to start the server. If it
219  * starts, the pid file was stale, so stop the server. If it doesn't
220  * start, assume the server is running. If the pid file is left over
221  * from a server crash, this also allows any committed transactions
222  * stored in the WAL to be replayed so they are not lost, because WAL
223  * files are not transferred from old to new servers.
224  */
225  if (start_postmaster(&old_cluster, false))
226  stop_postmaster(false);
227  else
228  {
229  if (!user_opts.check)
230  pg_fatal("There seems to be a postmaster servicing the old cluster.\n"
231  "Please shutdown that postmaster and try again.\n");
232  else
233  *live_check = true;
234  }
235  }
236 
237  /* same goes for the new postmaster */
239  {
240  if (start_postmaster(&new_cluster, false))
241  stop_postmaster(false);
242  else
243  pg_fatal("There seems to be a postmaster servicing the new cluster.\n"
244  "Please shutdown that postmaster and try again.\n");
245  }
246 
247  /* get path to pg_upgrade executable */
248  if (find_my_exec(argv0, exec_path) < 0)
249  pg_fatal("%s: could not find own program executable\n", argv0);
250 
251  /* Trim off program name and keep just path */
252  *last_dir_separator(exec_path) = '\0';
253  canonicalize_path(exec_path);
254  os_info.exec_path = pg_strdup(exec_path);
255 }
static char * argv0
Definition: pg_ctl.c:94
bool pid_lock_file_exists(const char *datadir)
Definition: exec.c:219
void canonicalize_path(char *path)
Definition: path.c:254
void pg_fatal(const char *fmt,...)
Definition: logging.c:83
ClusterInfo new_cluster
Definition: pg_upgrade.c:57
void check_pghost_envvar(void)
Definition: server.c:355
#define MAXPGPATH
int find_my_exec(const char *argv0, char *retpath)
Definition: exec.c:119
ClusterInfo old_cluster
Definition: pg_upgrade.c:57
char * pg_strdup(const char *in)
Definition: fe_memutils.c:85
UserOpts user_opts
Definition: option.c:29
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:89
bool check
Definition: pg_upgrade.h:297
static pgpid_t start_postmaster(void)
Definition: pg_ctl.c:444
char * pgdata
Definition: pg_upgrade.h:266
OSInfo os_info
Definition: pg_upgrade.c:59
char * exec_path
Definition: pg_upgrade.h:310

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 61 of file pg_upgrade.c.

Referenced by cleanup(), and parseCommandLine().