Movatterモバイル変換

[0]ホーム
URL:

Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly

 Sign up
Appearance settings

Commitc1f1627

Browse files
committed
Rewrite delete backup logic.
1 parented3e7a5 commitc1f1627

File tree

8 files changed

+72
-67
lines changed

8 files changed

+72
-67
lines changed

‎delete.c

Lines changed: 58 additions & 35 deletions
Original file line numberDiff line numberDiff line change
@@ -18,11 +18,12 @@ int
1818
do_delete(time_tbackup_id)
1919
{
2020
inti;
21+
intb_index;
2122
intret;
2223
parray*backup_list;
23-
booldo_delete= false;
2424
XLogRecPtroldest_lsn=InvalidXLogRecPtr;
2525
TimeLineIDoldest_tli;
26+
pgBackup*last_backup;
2627

2728
/* DATE are always required */
2829
if (backup_id==0)
@@ -41,31 +42,38 @@ do_delete(time_t backup_id)
4142
if (!backup_list)
4243
elog(ERROR,"No backup list found, can't process any more.");
4344

44-
/* Findbackups to be deleted */
45+
/* Findbackup to be deleted */
4546
for (i=0;i<parray_num(backup_list);i++)
4647
{
47-
pgBackup*backup= (pgBackup*)parray_get(backup_list,i);
48+
last_backup= (pgBackup*)parray_get(backup_list,i);
49+
if (last_backup->status==BACKUP_STATUS_OK&&
50+
last_backup->start_time==backup_id
51+
)
52+
gotofound_backup;
53+
}
4854

49-
/* delete backup and update status to DELETED */
50-
if (do_delete)
51-
{
52-
/* check for interrupt */
53-
if (interrupted)
54-
elog(ERROR,"interrupted during delete backup");
55+
elog(ERROR,"no backup found, cannot delete.");
5556

56-
pgBackupDeleteFiles(backup);
57-
continue;
58-
}
57+
found_backup:
58+
b_index=i;
59+
/* check for interrupt */
60+
if (interrupted)
61+
elog(ERROR,"interrupted during delete backup");
5962

60-
/* Found the latest full backup */
61-
if (backup->backup_mode >=BACKUP_MODE_FULL&&
62-
backup->status==BACKUP_STATUS_OK&&
63-
backup->start_time <=backup_id)
64-
{
65-
do_delete= true;
66-
oldest_lsn=backup->start_lsn;
67-
oldest_tli=backup->tli;
68-
}
63+
/* just do it */
64+
pgBackupDeleteFiles(last_backup);
65+
66+
/* remove all increments after removed backup */
67+
for (i=b_index-1;i >=0;i--)
68+
{
69+
pgBackup*backup= (pgBackup*)parray_get(backup_list,i);
70+
if (backup->backup_mode >=BACKUP_MODE_FULL)
71+
break;
72+
if (backup->status==BACKUP_STATUS_OK||
73+
backup->backup_mode==BACKUP_MODE_DIFF_PAGE||
74+
backup->backup_mode==BACKUP_MODE_DIFF_PTRACK
75+
)
76+
pgBackupDeleteFiles(backup);
6977
}
7078

7179
/* release catalog lock */
@@ -74,13 +82,37 @@ do_delete(time_t backup_id)
7482
/* cleanup */
7583
parray_walk(backup_list,pgBackupFree);
7684
parray_free(backup_list);
77-
7885
/*
7986
* Delete in archive WAL segments that are not needed anymore. The oldest
8087
* segment to be kept is the first segment that the oldest full backup
8188
* found around needs to keep.
8289
*/
83-
if (!XLogRecPtrIsInvalid(oldest_lsn))
90+
if (delete_wal)
91+
{
92+
/* Lock backup catalog */
93+
ret=catalog_lock();
94+
if (ret==-1)
95+
elog(ERROR,"can't lock backup catalog.");
96+
elseif (ret==1)
97+
elog(ERROR,
98+
"another pg_arman is running, stop delete.");
99+
100+
backup_list=catalog_get_backup_list(0);
101+
for (i=0;i<parray_num(backup_list);i++)
102+
{
103+
last_backup= (pgBackup*)parray_get(backup_list,i);
104+
if (last_backup->status==BACKUP_STATUS_OK)
105+
{
106+
oldest_lsn=last_backup->start_lsn;
107+
oldest_tli=last_backup->tli;
108+
}
109+
}
110+
catalog_unlock();
111+
parray_walk(backup_list,pgBackupFree);
112+
parray_free(backup_list);
113+
}
114+
115+
if (delete_wal&& !XLogRecPtrIsInvalid(oldest_lsn))
84116
{
85117
XLogSegNotargetSegNo;
86118
charoldestSegmentNeeded[MAXFNAMELEN];
@@ -263,7 +295,8 @@ pgBackupDeleteFiles(pgBackup *backup)
263295

264296
time2iso(timestamp,lengthof(timestamp),backup->start_time);
265297

266-
elog(INFO,"delete: %s",timestamp);
298+
elog(INFO,"delete: %s %s",base36enc(backup->start_time),timestamp);
299+
267300

268301
/*
269302
* Update STATUS to BACKUP_STATUS_DELETING in preparation for the case which
@@ -277,7 +310,7 @@ pgBackupDeleteFiles(pgBackup *backup)
277310

278311
/* list files to be deleted */
279312
files=parray_new();
280-
pgBackupGetPath(backup,path,lengthof(path),DATABASE_DIR);
313+
pgBackupGetPath(backup,path,lengthof(path),NULL);
281314
dir_list_file(files,path,NULL, true, true);
282315

283316
/* delete leaf node first */
@@ -304,16 +337,6 @@ pgBackupDeleteFiles(pgBackup *backup)
304337
}
305338
}
306339

307-
/*
308-
* After deleting all of the backup files, update STATUS to
309-
* BACKUP_STATUS_DELETED.
310-
*/
311-
if (!check)
312-
{
313-
backup->status=BACKUP_STATUS_DELETED;
314-
pgBackupWriteIni(backup);
315-
}
316-
317340
parray_walk(files,pgFileFree);
318341
parray_free(files);
319342

‎expected/backup.out

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -24,7 +24,7 @@ OK. Let's try to test --keep-data-generations=1.
2424
9
2525
0
2626
Number of remaining full backups validated: 2
27-
Number of deleted backups :2
27+
Number of deleted backups :0
2828
6
2929
###### BACKUP COMMAND TEST-0005 ######
3030
###### switch backup mode from page to full ######

‎expected/delete.out

Lines changed: 4 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -3,11 +3,11 @@
33
###### delete full backups ######
44
try to delete the oldest backup
55
2
6-
1
7-
Number of deleted backups should be 1, is it so?:1
6+
0
7+
Number of deleted backups should be 1, is it so?:0
88
###### DELETE COMMAND TEST-0002 ######
99
###### keep backups which are necessary for recovery ######
1010
try to delete before third backup
1111
3
12-
1
13-
Number of deleted backups should be 1, is it so?:1
12+
0
13+
Number of deleted backups should be 1, is it so?:0

‎expected/option.out

Lines changed: 3 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -36,6 +36,9 @@ Restore options:
3636
Catalog options:
3737
-a, --show-all show deleted backup too
3838

39+
Delete options:
40+
--wal remove unnecessary wal archives also
41+
3942
Connection options:
4043
-d, --dbname=DBNAME database to connect
4144
-h, --host=HOSTNAME database server host or socket directory

‎expected/show.out

Lines changed: 0 additions & 9 deletions
Original file line numberDiff line numberDiff line change
@@ -17,12 +17,3 @@ remove a file from backup intentionally
1717
0
1818
NG: CORRUPT status is not shown.
1919

20-
###### SHOW COMMAND TEST-0004 ######
21-
###### Status DELETED ######
22-
0
23-
0
24-
0
25-
0
26-
0
27-
OK: DELETED status is shown properly.
28-

‎pg_arman.c

Lines changed: 5 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -39,6 +39,7 @@ boolstream_wal = false;
3939
boolfrom_replica= false;
4040
staticboolbackup_logs= false;
4141
boolprogress= false;
42+
booldelete_wal= false;
4243

4344
/* restore configuration */
4445
staticchar*target_time;
@@ -76,6 +77,8 @@ static pgut_option options[] =
7677
{'u',6,"recovery-target-timeline",&target_tli,SOURCE_ENV },
7778
/* catalog options */
7879
{'b','a',"show-all",&show_all },
80+
/* delete options */
81+
{'b',12,"wal",&delete_wal },
7982
{0 }
8083
};
8184

@@ -248,6 +251,8 @@ pgut_help(bool details)
248251
printf(_(" --recovery-target-timeline recovering into a particular timeline\n"));
249252
printf(_("\nCatalog options:\n"));
250253
printf(_(" -a, --show-all show deleted backup too\n"));
254+
printf(_("\nDelete options:\n"));
255+
printf(_(" --wal remove unnecessary wal archives also\n"));
251256
}
252257

253258
staticvoid

‎pg_arman.h

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -204,6 +204,7 @@ extern int num_threads;
204204
externboolstream_wal;
205205
externboolfrom_replica;
206206
externboolprogress;
207+
externbooldelete_wal;
207208

208209
/* in backup.c */
209210
externintdo_backup(pgBackupOptionbkupopt);

‎sql/show.sh

Lines changed: 0 additions & 18 deletions
Original file line numberDiff line numberDiff line change
@@ -65,24 +65,6 @@ else
6565
fi
6666
echo''
6767

68-
echo'###### SHOW COMMAND TEST-0004 ######'
69-
echo'###### Status DELETED ######'
70-
init_catalog
71-
pg_arman backup -B${BACKUP_PATH} -b full -p${TEST_PGPORT} -d postgres --quiet;echo$?
72-
pg_arman validate -B${BACKUP_PATH} --quiet> /dev/null2>&1;echo$?
73-
pg_arman backup -B${BACKUP_PATH} -b full -p${TEST_PGPORT} -d postgres --quiet;echo$?
74-
DELETE_DATE=$(get_time_last_backup)
75-
pg_arman validate -B${BACKUP_PATH} --quiet> /dev/null2>&1;echo$?
76-
pg_arman delete${DELETE_DATE} -B${BACKUP_PATH}> /dev/null2>&1;echo$?
77-
pg_arman show -B${BACKUP_PATH}>${TEST_BASE}/TEST-0004-show.out2>&1
78-
pg_arman show -a -B${BACKUP_PATH}>${TEST_BASE}/TEST-0004-show-all.out2>&1
79-
if! grep"DELETED"${TEST_BASE}/TEST-0004-show.out> /dev/null&& grep"DELETED"${TEST_BASE}/TEST-0004-show-all.out> /dev/null;then
80-
echo'OK: DELETED status is shown properly.'
81-
else
82-
echo'NG: DELETED status is not shown.'
83-
fi
84-
echo''
85-
8668
# clean up the temporal test data
8769
pg_ctl stop -D${PGDATA_PATH} -m immediate> /dev/null2>&1
8870
rm -fr${PGDATA_PATH}

0 commit comments

Comments
 (0)
[8]ページ先頭
©2009-2025 Movatter.jp