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Commit2bc096b

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Merge pull request#515 from postgrespro/PBCKP-170
PBCKP-170
2 parents2e1950a +8ce27c9 commit2bc096b

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6 files changed

+415
-15
lines changed

6 files changed

+415
-15
lines changed

‎src/backup.c

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -695,7 +695,7 @@ pgdata_basic_setup(ConnectionOptions conn_opt, PGNodeInfo *nodeInfo)
695695
*/
696696
int
697697
do_backup(InstanceState*instanceState,pgSetBackupParams*set_backup_params,
698-
boolno_validate,boolno_sync,boolbackup_logs)
698+
boolno_validate,boolno_sync,boolbackup_logs,time_tstart_time)
699699
{
700700
PGconn*backup_conn=NULL;
701701
PGNodeInfonodeInfo;
@@ -710,7 +710,7 @@ do_backup(InstanceState *instanceState, pgSetBackupParams *set_backup_params,
710710
current.external_dir_str=instance_config.external_dir_str;
711711

712712
/* Create backup directory and BACKUP_CONTROL_FILE */
713-
pgBackupCreateDir(&current,instanceState->instance_backup_subdir_path);
713+
pgBackupCreateDir(&current,instanceState,start_time);
714714

715715
if (!instance_config.pgdata)
716716
elog(ERROR,"required parameter not specified: PGDATA "

‎src/catalog.c

Lines changed: 27 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -23,7 +23,7 @@ static pgBackup* get_closest_backup(timelineInfo *tlinfo);
2323
staticpgBackup*get_oldest_backup(timelineInfo*tlinfo);
2424
staticconstchar*backupModes[]= {"","PAGE","PTRACK","DELTA","FULL"};
2525
staticpgBackup*readBackupControlFile(constchar*path);
26-
statictime_tcreate_backup_dir(pgBackup*backup,constchar*backup_instance_path);
26+
staticvoidcreate_backup_dir(pgBackup*backup,constchar*backup_instance_path);
2727

2828
staticboolbackup_lock_exit_hook_registered= false;
2929
staticparray*locks=NULL;
@@ -1420,10 +1420,12 @@ get_multi_timeline_parent(parray *backup_list, parray *tli_list,
14201420
*/
14211421

14221422
void
1423-
pgBackupCreateDir(pgBackup*backup,constchar*backup_instance_path)
1423+
pgBackupCreateDir(pgBackup*backup,InstanceState*instanceState,time_tstart_time)
14241424
{
14251425
inti;
14261426
parray*subdirs=parray_new();
1427+
parray*backups;
1428+
pgBackup*target_backup;
14271429

14281430
parray_append(subdirs,pg_strdup(DATABASE_DIR));
14291431

@@ -1444,7 +1446,26 @@ pgBackupCreateDir(pgBackup *backup, const char *backup_instance_path)
14441446
free_dir_list(external_list);
14451447
}
14461448

1447-
backup->backup_id=create_backup_dir(backup,backup_instance_path);
1449+
/* Get list of all backups*/
1450+
backups=catalog_get_backup_list(instanceState,INVALID_BACKUP_ID);
1451+
if (parray_num(backups)>0)
1452+
{
1453+
target_backup= (pgBackup*)parray_get(backups,0);
1454+
if (start_time>target_backup->backup_id)
1455+
{
1456+
backup->backup_id=start_time;
1457+
create_backup_dir(backup,instanceState->instance_backup_subdir_path);
1458+
}
1459+
else
1460+
{
1461+
elog(ERROR,"Cannot create directory for older backup");
1462+
}
1463+
}
1464+
else
1465+
{
1466+
backup->backup_id=start_time;
1467+
create_backup_dir(backup,instanceState->instance_backup_subdir_path);
1468+
}
14481469

14491470
if (backup->backup_id==0)
14501471
elog(ERROR,"Cannot create backup directory: %s",strerror(errno));
@@ -1471,7 +1492,7 @@ pgBackupCreateDir(pgBackup *backup, const char *backup_instance_path)
14711492
* Create root directory for backup,
14721493
* update pgBackup.root_dir if directory creation was a success
14731494
*/
1474-
time_t
1495+
void
14751496
create_backup_dir(pgBackup*backup,constchar*backup_instance_path)
14761497
{
14771498
intattempts=10;
@@ -1480,17 +1501,16 @@ create_backup_dir(pgBackup *backup, const char *backup_instance_path)
14801501
{
14811502
intrc;
14821503
charpath[MAXPGPATH];
1483-
time_tbackup_id=time(NULL);
14841504

1485-
join_path_components(path,backup_instance_path,base36enc(backup_id));
1505+
join_path_components(path,backup_instance_path,base36enc(backup->backup_id));
14861506

14871507
/* TODO: add wrapper for remote mode */
14881508
rc=dir_create_dir(path,DIR_PERMISSION, true);
14891509

14901510
if (rc==0)
14911511
{
14921512
backup->root_dir=pgut_strdup(path);
1493-
returnbackup_id;
1513+
return;
14941514
}
14951515
else
14961516
{
@@ -1499,7 +1519,6 @@ create_backup_dir(pgBackup *backup, const char *backup_instance_path)
14991519
}
15001520
}
15011521

1502-
return0;
15031522
}
15041523

15051524
/*

‎src/pg_probackup.c

Lines changed: 10 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -78,6 +78,7 @@ pid_t my_pid = 0;
7878
__threadintmy_thread_num=1;
7979
boolprogress= false;
8080
boolno_sync= false;
81+
time_tstart_time=0;
8182
#ifPG_VERSION_NUM >=100000
8283
char*replication_slot=NULL;
8384
booltemp_slot= false;
@@ -201,6 +202,7 @@ static ConfigOption cmd_options[] =
201202
{'s','i',"backup-id",&backup_id_string,SOURCE_CMD_STRICT },
202203
{'b',133,"no-sync",&no_sync,SOURCE_CMD_STRICT },
203204
{'b',134,"no-color",&no_color,SOURCE_CMD_STRICT },
205+
{'U',241,"start-time",&start_time,SOURCE_CMD_STRICT },
204206
/* backup options */
205207
{'b',180,"backup-pg-log",&backup_logs,SOURCE_CMD_STRICT },
206208
{'f','b',"backup-mode",opt_backup_mode,SOURCE_CMD_STRICT },
@@ -957,14 +959,21 @@ main(int argc, char *argv[])
957959
caseBACKUP_CMD:
958960
{
959961
current.stream=stream_wal;
962+
if (start_time==0)
963+
start_time=current_time;
964+
else
965+
elog(WARNING,"Please do not use the --start-time option to start backup. "
966+
"This is a service option required to work with other extensions. "
967+
"We do not guarantee future support for this flag.");
968+
960969

961970
/* sanity */
962971
if (current.backup_mode==BACKUP_MODE_INVALID)
963972
elog(ERROR,"required parameter not specified: BACKUP_MODE "
964973
"(-b, --backup-mode)");
965974

966975
returndo_backup(instanceState,set_backup_params,
967-
no_validate,no_sync,backup_logs);
976+
no_validate,no_sync,backup_logs,start_time);
968977
}
969978
caseCATCHUP_CMD:
970979
returndo_catchup(catchup_source_pgdata,catchup_destination_pgdata,num_threads, !no_sync,

‎src/pg_probackup.h

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -842,7 +842,7 @@ extern char** commands_args;
842842

843843
/* in backup.c */
844844
externintdo_backup(InstanceState*instanceState,pgSetBackupParams*set_backup_params,
845-
boolno_validate,boolno_sync,boolbackup_logs);
845+
boolno_validate,boolno_sync,boolbackup_logs,time_tstart_time);
846846
externvoiddo_checkdb(boolneed_amcheck,ConnectionOptionsconn_opt,
847847
char*pgdata);
848848
externBackupModeparse_backup_mode(constchar*value);
@@ -983,7 +983,7 @@ extern void write_backup_filelist(pgBackup *backup, parray *files,
983983
constchar*root,parray*external_list,boolsync);
984984

985985

986-
externvoidpgBackupCreateDir(pgBackup*backup,constchar*backup_instance_path);
986+
externvoidpgBackupCreateDir(pgBackup*backup,InstanceState*instanceState,time_tstart_time);
987987
externvoidpgNodeInit(PGNodeInfo*node);
988988
externvoidpgBackupInit(pgBackup*backup);
989989
externvoidpgBackupFree(void*backup);

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