PostgreSQL Source Code  git master
pg_upgrade.c File Reference
Include dependency graph for pg_upgrade.c:

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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 626 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().

627 {
628  fclose(log_opts.internal);
629 
630  /* Remove dump and log files? */
631  if (!log_opts.retain)
632  {
633  int dbnum;
634  char **filename;
635 
636  for (filename = output_files; *filename != NULL; filename++)
637  unlink(*filename);
638 
639  /* remove dump files */
640  unlink(GLOBALS_DUMP_FILE);
641 
642  if (old_cluster.dbarr.dbs)
643  for (dbnum = 0; dbnum < old_cluster.dbarr.ndbs; dbnum++)
644  {
645  char sql_file_name[MAXPGPATH],
646  log_file_name[MAXPGPATH];
647  DbInfo *old_db = &old_cluster.dbarr.dbs[dbnum];
648 
649  snprintf(sql_file_name, sizeof(sql_file_name), DB_DUMP_FILE_MASK, old_db->db_oid);
650  unlink(sql_file_name);
651 
652  snprintf(log_file_name, sizeof(log_file_name), DB_DUMP_LOG_FILE_MASK, old_db->db_oid);
653  unlink(log_file_name);
654  }
655  }
656 }
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:60
ClusterInfo old_cluster
Definition: pg_upgrade.c:56
#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:85
#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 385 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().

386 {
387  char old_path[MAXPGPATH];
388  char new_path[MAXPGPATH];
389 
390  remove_new_subdir(new_subdir, true);
391 
392  snprintf(old_path, sizeof(old_path), "%s/%s", old_cluster.pgdata, old_subdir);
393  snprintf(new_path, sizeof(new_path), "%s/%s", new_cluster.pgdata, new_subdir);
394 
395  prep_status("Copying old %s to new server", old_subdir);
396 
397  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
398 #ifndef WIN32
399  "cp -Rf \"%s\" \"%s\"",
400 #else
401  /* flags: everything, no confirm, quiet, overwrite read-only */
402  "xcopy /e /y /q /r \"%s\" \"%s\\\"",
403 #endif
404  old_path, new_path);
405 
406  check_ok();
407 }
static void remove_new_subdir(const char *subdir, bool rmtopdir)
Definition: pg_upgrade.c:368
int snprintf(char *str, size_t count, const char *fmt,...) pg_attribute_printf(3
ClusterInfo new_cluster
Definition: pg_upgrade.c:56
#define MAXPGPATH
void prep_status(const char *fmt,...) pg_attribute_printf(1
ClusterInfo old_cluster
Definition: pg_upgrade.c:56
static void check_ok(void)
Definition: initdb.c:2051
#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 410 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().

411 {
412  /*
413  * Copy old commit logs to new data dir. pg_clog has been renamed to
414  * pg_xact in post-10 clusters.
415  */
417  "pg_clog" : "pg_xact",
419  "pg_clog" : "pg_xact");
420 
421  /* set the next transaction id and epoch of the new cluster */
422  prep_status("Setting next transaction ID and epoch for new cluster");
423  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
424  "\"%s/pg_resetwal\" -f -x %u \"%s\"",
427  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
428  "\"%s/pg_resetwal\" -f -e %u \"%s\"",
431  /* must reset commit timestamp limits also */
432  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
433  "\"%s/pg_resetwal\" -f -c %u,%u \"%s\"",
438  check_ok();
439 
440  /*
441  * If the old server is before the MULTIXACT_FORMATCHANGE_CAT_VER change
442  * (see pg_upgrade.h) and the new server is after, then we don't copy
443  * pg_multixact files, but we need to reset pg_control so that the new
444  * server doesn't attempt to read multis older than the cutoff value.
445  */
448  {
449  copy_subdir_files("pg_multixact/offsets", "pg_multixact/offsets");
450  copy_subdir_files("pg_multixact/members", "pg_multixact/members");
451 
452  prep_status("Setting next multixact ID and offset for new cluster");
453 
454  /*
455  * we preserve all files and contents, so we must preserve both "next"
456  * counters here and the oldest multi present on system.
457  */
458  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
459  "\"%s/pg_resetwal\" -O %u -m %u,%u \"%s\"",
465  check_ok();
466  }
468  {
469  /*
470  * Remove offsets/0000 file created by initdb that no longer matches
471  * the new multi-xid value. "members" starts at zero so no need to
472  * remove it.
473  */
474  remove_new_subdir("pg_multixact/offsets", false);
475 
476  prep_status("Setting oldest multixact ID in new cluster");
477 
478  /*
479  * We don't preserve files in this case, but it's important that the
480  * oldest multi is set to the latest value used by the old system, so
481  * that multixact.c returns the empty set for multis that might be
482  * present on disk. We set next multi to the value following that; it
483  * might end up wrapped around (i.e. 0) if the old cluster had
484  * next=MaxMultiXactId, but multixact.c can cope with that just fine.
485  */
486  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
487  "\"%s/pg_resetwal\" -m %u,%u \"%s\"",
492  check_ok();
493  }
494 
495  /* now reset the wal archives in the new cluster */
496  prep_status("Resetting WAL archives");
497  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
498  /* use timeline 1 to match controldata and no WAL history file */
499  "\"%s/pg_resetwal\" -l 00000001%s \"%s\"", new_cluster.bindir,
502  check_ok();
503 }
static void remove_new_subdir(const char *subdir, bool rmtopdir)
Definition: pg_upgrade.c:368
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:56
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:56
static void check_ok(void)
Definition: initdb.c:2051
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:385
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 299 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(), 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().

300 {
301  int dbnum;
302 
303  prep_status("Restoring database schemas in the new cluster\n");
304 
305  for (dbnum = 0; dbnum < old_cluster.dbarr.ndbs; dbnum++)
306  {
307  char sql_file_name[MAXPGPATH],
308  log_file_name[MAXPGPATH];
309  DbInfo *old_db = &old_cluster.dbarr.dbs[dbnum];
310  const char *create_opts;
311  const char *starting_db;
312 
313  pg_log(PG_STATUS, "%s", old_db->db_name);
314  snprintf(sql_file_name, sizeof(sql_file_name), DB_DUMP_FILE_MASK, old_db->db_oid);
315  snprintf(log_file_name, sizeof(log_file_name), DB_DUMP_LOG_FILE_MASK, old_db->db_oid);
316 
317  /*
318  * template1 and postgres databases will already exist in the target
319  * installation, so tell pg_restore to drop and recreate them;
320  * otherwise we would fail to propagate their database-level
321  * properties.
322  */
323  if (strcmp(old_db->db_name, "template1") == 0 ||
324  strcmp(old_db->db_name, "postgres") == 0)
325  create_opts = "--clean --create";
326  else
327  create_opts = "--create";
328 
329  /* When processing template1, we can't connect there to start with */
330  if (strcmp(old_db->db_name, "template1") == 0)
331  starting_db = "postgres";
332  else
333  starting_db = "template1";
334 
335  parallel_exec_prog(log_file_name,
336  NULL,
337  "\"%s/pg_restore\" %s %s --exit-on-error --verbose "
338  "--dbname %s \"%s\"",
341  create_opts,
342  starting_db,
343  sql_file_name);
344  }
345 
346  /* reap all children */
347  while (reap_child(true) == true)
348  ;
349 
351  check_ok();
352 
353  /*
354  * We don't have minmxids for databases or relations in pre-9.3 clusters,
355  * so set those after we have restored the schema.
356  */
358  set_frozenxids(true);
359 
360  /* update new_cluster info now that we have objects in the databases */
362 }
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:88
Oid db_oid
Definition: pg_upgrade.h:186
ClusterInfo new_cluster
Definition: pg_upgrade.c:56
#define MAXPGPATH
void prep_status(const char *fmt,...) pg_attribute_printf(1
ClusterInfo old_cluster
Definition: pg_upgrade.c:56
void pg_log(eLogType type, const char *fmt,...)
Definition: logging.c:69
static void check_ok(void)
Definition: initdb.c:2051
#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:528
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
DbInfo * dbs
Definition: pg_upgrade.h:198

◆ main()

int main ( int  argc,
char **  argv 
)

Definition at line 73 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(), issue_warnings_and_set_wal_level(), output_check_banner(), output_completion_banner(), parseCommandLine(), pg_free(), pg_log(), PG_REPORT, PG_TEXTDOMAIN, ClusterInfo::pgdata, prep_status(), prepare_new_cluster(), prepare_new_globals(), OSInfo::progname, report_clusters_compatible(), S_IRWXG, S_IRWXO, set_pglocale_pgservice(), setup(), start_postmaster(), stop_postmaster(), transfer_all_new_tablespaces(), UserOpts::transfer_mode, TRANSFER_MODE_LINK, user_opts, and UTILITY_LOG_FILE.

74 {
75  char *analyze_script_file_name = NULL;
76  char *deletion_script_file_name = NULL;
77  bool live_check = false;
78 
79  set_pglocale_pgservice(argv[0], PG_TEXTDOMAIN("pg_upgrade"));
80 
81  /* Ensure that all files created by pg_upgrade are non-world-readable */
82  umask(S_IRWXG | S_IRWXO);
83 
84  parseCommandLine(argc, argv);
85 
87 
90 
91  setup(argv[0], &live_check);
92 
93  output_check_banner(live_check);
94 
96 
97  get_sock_dir(&old_cluster, live_check);
98  get_sock_dir(&new_cluster, false);
99 
100  check_cluster_compatibility(live_check);
101 
102  check_and_dump_old_cluster(live_check);
103 
104 
105  /* -- NEW -- */
107 
110 
112  "\n"
113  "Performing Upgrade\n"
114  "------------------\n");
115 
117 
118  stop_postmaster(false);
119 
120  /*
121  * Destructive Changes to New Cluster
122  */
123 
125 
126  /* New now using xids of the old system */
127 
128  /* -- NEW -- */
130 
132 
134 
135  stop_postmaster(false);
136 
137  /*
138  * Most failures happen in create_new_objects(), which has completed at
139  * this point. We do this here because it is just before linking, which
140  * will link the old and new cluster data files, preventing the old
141  * cluster from being safely started once the new cluster is started.
142  */
145 
148 
149  /*
150  * Assuming OIDs are only used in system tables, there is no need to
151  * restore the OID counter because we have not transferred any OIDs from
152  * the old system, but we do it anyway just in case. We do it late here
153  * because there is no need to have the schema load use new oids.
154  */
155  prep_status("Setting next OID for new cluster");
156  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
157  "\"%s/pg_resetwal\" -o %u \"%s\"",
160  check_ok();
161 
162  prep_status("Sync data directory to disk");
163  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
164  "\"%s/initdb\" --sync-only \"%s\"", new_cluster.bindir,
166  check_ok();
167 
168  create_script_for_cluster_analyze(&analyze_script_file_name);
169  create_script_for_old_cluster_deletion(&deletion_script_file_name);
170 
172 
174  "\n"
175  "Upgrade Complete\n"
176  "----------------\n");
177 
178  output_completion_banner(analyze_script_file_name,
179  deletion_script_file_name);
180 
181  pg_free(analyze_script_file_name);
182  pg_free(deletion_script_file_name);
183 
184  cleanup();
185 
186  return 0;
187 }
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:626
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:248
void get_sock_dir(ClusterInfo *cluster, bool live_check)
Definition: option.c:447
static void create_new_objects(void)
Definition: pg_upgrade.c:299
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:2059
void get_restricted_token(const char *progname)
ClusterInfo new_cluster
Definition: pg_upgrade.c:56
static void prepare_new_globals(void)
Definition: pg_upgrade.c:278
void output_check_banner(bool live_check)
Definition: check.c:61
#define S_IRWXG
Definition: win32_port.h:292
void prep_status(const char *fmt,...) pg_attribute_printf(1
ClusterInfo old_cluster
Definition: pg_upgrade.c:56
void pg_log(eLogType type, const char *fmt,...)
Definition: logging.c:69
static void check_ok(void)
Definition: initdb.c:2051
void create_script_for_old_cluster_deletion(char **deletion_script_file_name)
Definition: check.c:517
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:1043
static void setup(char *argv0, bool *live_check)
Definition: pg_upgrade.c:191
void stop_postmaster(bool in_atexit)
Definition: server.c:325
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:443
#define UTILITY_LOG_FILE
Definition: pg_upgrade.h:37
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
OSInfo os_info
Definition: pg_upgrade.c:58
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:427
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
#define S_IRWXO
Definition: win32_port.h:304
static void copy_xact_xlog_xid(void)
Definition: pg_upgrade.c:410

◆ prepare_new_cluster()

static void prepare_new_cluster ( void  )
static

Definition at line 248 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().

249 {
250  /*
251  * It would make more sense to freeze after loading the schema, but that
252  * would cause us to lose the frozenids restored by the load. We use
253  * --analyze so autovacuum doesn't update statistics later
254  */
255  prep_status("Analyzing all rows in the new cluster");
256  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
257  "\"%s/vacuumdb\" %s --all --analyze %s",
259  log_opts.verbose ? "--verbose" : "");
260  check_ok();
261 
262  /*
263  * We do freeze after analyze so pg_statistic is also frozen. template0 is
264  * not frozen here, but data rows were frozen by initdb, and we set its
265  * datfrozenxid, relfrozenxids, and relminmxid later to match the new xid
266  * counter later.
267  */
268  prep_status("Freezing all rows in the new cluster");
269  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
270  "\"%s/vacuumdb\" %s --all --freeze %s",
272  log_opts.verbose ? "--verbose" : "");
273  check_ok();
274 }
PGresult char * cluster_conn_opts(ClusterInfo *cluster)
Definition: server.c:88
LogOpts log_opts
Definition: util.c:18
ClusterInfo new_cluster
Definition: pg_upgrade.c:56
void prep_status(const char *fmt,...) pg_attribute_printf(1
static void check_ok(void)
Definition: initdb.c:2051
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 278 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().

279 {
280  /*
281  * Before we restore anything, set frozenxids of initdb-created tables.
282  */
283  set_frozenxids(false);
284 
285  /*
286  * Now restore global objects (roles and tablespaces).
287  */
288  prep_status("Restoring global objects in the new cluster");
289 
290  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
291  "\"%s/psql\" " EXEC_PSQL_ARGS " %s -f \"%s\"",
294  check_ok();
295 }
PGresult char * cluster_conn_opts(ClusterInfo *cluster)
Definition: server.c:88
ClusterInfo new_cluster
Definition: pg_upgrade.c:56
void prep_status(const char *fmt,...) pg_attribute_printf(1
static void check_ok(void)
Definition: initdb.c:2051
char * bindir
Definition: pg_upgrade.h:269
static void set_frozenxids(bool minmxid_only)
Definition: pg_upgrade.c:528
#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 368 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().

369 {
370  char new_path[MAXPGPATH];
371 
372  prep_status("Deleting files from new %s", subdir);
373 
374  snprintf(new_path, sizeof(new_path), "%s/%s", new_cluster.pgdata, subdir);
375  if (!rmtree(new_path, rmtopdir))
376  pg_fatal("could not delete directory \"%s\"\n", new_path);
377 
378  check_ok();
379 }
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:56
#define MAXPGPATH
void prep_status(const char *fmt,...) pg_attribute_printf(1
static void check_ok(void)
Definition: initdb.c:2051
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 528 of file pg_upgrade.c.

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

Referenced by create_new_objects(), and prepare_new_globals().

529 {
530  int dbnum;
531  PGconn *conn,
532  *conn_template1;
533  PGresult *dbres;
534  int ntups;
535  int i_datname;
536  int i_datallowconn;
537 
538  if (!minmxid_only)
539  prep_status("Setting frozenxid and minmxid counters in new cluster");
540  else
541  prep_status("Setting minmxid counter in new cluster");
542 
543  conn_template1 = connectToServer(&new_cluster, "template1");
544 
545  if (!minmxid_only)
546  /* set pg_database.datfrozenxid */
547  PQclear(executeQueryOrDie(conn_template1,
548  "UPDATE pg_catalog.pg_database "
549  "SET datfrozenxid = '%u'",
551 
552  /* set pg_database.datminmxid */
553  PQclear(executeQueryOrDie(conn_template1,
554  "UPDATE pg_catalog.pg_database "
555  "SET datminmxid = '%u'",
557 
558  /* get database names */
559  dbres = executeQueryOrDie(conn_template1,
560  "SELECT datname, datallowconn "
561  "FROM pg_catalog.pg_database");
562 
563  i_datname = PQfnumber(dbres, "datname");
564  i_datallowconn = PQfnumber(dbres, "datallowconn");
565 
566  ntups = PQntuples(dbres);
567  for (dbnum = 0; dbnum < ntups; dbnum++)
568  {
569  char *datname = PQgetvalue(dbres, dbnum, i_datname);
570  char *datallowconn = PQgetvalue(dbres, dbnum, i_datallowconn);
571 
572  /*
573  * We must update databases where datallowconn = false, e.g.
574  * template0, because autovacuum increments their datfrozenxids,
575  * relfrozenxids, and relminmxid even if autovacuum is turned off, and
576  * even though all the data rows are already frozen. To enable this,
577  * we temporarily change datallowconn.
578  */
579  if (strcmp(datallowconn, "f") == 0)
580  PQclear(executeQueryOrDie(conn_template1,
581  "ALTER DATABASE %s ALLOW_CONNECTIONS = true",
582  quote_identifier(datname)));
583 
584  conn = connectToServer(&new_cluster, datname);
585 
586  if (!minmxid_only)
587  /* set pg_class.relfrozenxid */
589  "UPDATE pg_catalog.pg_class "
590  "SET relfrozenxid = '%u' "
591  /* only heap, materialized view, and TOAST are vacuumed */
592  "WHERE relkind IN ("
597 
598  /* set pg_class.relminmxid */
600  "UPDATE pg_catalog.pg_class "
601  "SET relminmxid = '%u' "
602  /* only heap, materialized view, and TOAST are vacuumed */
603  "WHERE relkind IN ("
608  PQfinish(conn);
609 
610  /* Reset datallowconn flag */
611  if (strcmp(datallowconn, "f") == 0)
612  PQclear(executeQueryOrDie(conn_template1,
613  "ALTER DATABASE %s ALLOW_CONNECTIONS = false",
614  quote_identifier(datname)));
615  }
616 
617  PQclear(dbres);
618 
619  PQfinish(conn_template1);
620 
621  check_ok();
622 }
const char * quote_identifier(const char *ident)
Definition: ruleutils.c:10435
char * PQgetvalue(const PGresult *res, int tup_num, int field_num)
Definition: fe-exec.c:3118
ControlData controldata
Definition: pg_upgrade.h:264
#define RELKIND_MATVIEW
Definition: pg_class.h:165
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:56
uint32 chkpnt_nxtxid
Definition: pg_upgrade.h:212
PGconn * conn
Definition: streamutil.c:46
void prep_status(const char *fmt,...) pg_attribute_printf(1
ClusterInfo old_cluster
Definition: pg_upgrade.c:56
static void check_ok(void)
Definition: initdb.c:2051
PGconn * connectToServer(ClusterInfo *cluster, const char *db_name)
Definition: server.c:27
#define CppAsString2(x)
Definition: c.h:224
#define RELKIND_TOASTVALUE
Definition: pg_class.h:163
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
#define RELKIND_RELATION
Definition: pg_class.h:160

◆ setup()

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

Definition at line 191 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().

192 {
193  char exec_path[MAXPGPATH]; /* full path to my executable */
194 
195  /*
196  * make sure the user has a clean environment, otherwise, we may confuse
197  * libpq when we connect to one (or both) of the servers.
198  */
200 
202 
203  /* no postmasters should be running, except for a live check */
205  {
206  /*
207  * If we have a postmaster.pid file, try to start the server. If it
208  * starts, the pid file was stale, so stop the server. If it doesn't
209  * start, assume the server is running. If the pid file is left over
210  * from a server crash, this also allows any committed transactions
211  * stored in the WAL to be replayed so they are not lost, because WAL
212  * files are not transferred from old to new servers.
213  */
214  if (start_postmaster(&old_cluster, false))
215  stop_postmaster(false);
216  else
217  {
218  if (!user_opts.check)
219  pg_fatal("There seems to be a postmaster servicing the old cluster.\n"
220  "Please shutdown that postmaster and try again.\n");
221  else
222  *live_check = true;
223  }
224  }
225 
226  /* same goes for the new postmaster */
228  {
229  if (start_postmaster(&new_cluster, false))
230  stop_postmaster(false);
231  else
232  pg_fatal("There seems to be a postmaster servicing the new cluster.\n"
233  "Please shutdown that postmaster and try again.\n");
234  }
235 
236  /* get path to pg_upgrade executable */
237  if (find_my_exec(argv0, exec_path) < 0)
238  pg_fatal("%s: could not find own program executable\n", argv0);
239 
240  /* Trim off program name and keep just path */
241  *last_dir_separator(exec_path) = '\0';
242  canonicalize_path(exec_path);
243  os_info.exec_path = pg_strdup(exec_path);
244 }
static char * argv0
Definition: pg_ctl.c:93
bool pid_lock_file_exists(const char *datadir)
Definition: exec.c:217
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:56
void check_pghost_envvar(void)
Definition: server.c:352
#define MAXPGPATH
int find_my_exec(const char *argv0, char *retpath)
Definition: exec.c:119
ClusterInfo old_cluster
Definition: pg_upgrade.c:56
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:325
char * last_dir_separator(const char *filename)
Definition: path.c:138
void verify_directories(void)
Definition: exec.c:248
static char * exec_path
Definition: pg_ctl.c:88
bool check
Definition: pg_upgrade.h:297
static pgpid_t start_postmaster(void)
Definition: pg_ctl.c:443
char * pgdata
Definition: pg_upgrade.h:266
OSInfo os_info
Definition: pg_upgrade.c:58
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 60 of file pg_upgrade.c.

Referenced by cleanup(), and parseCommandLine().