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Commitaa27178

Browse files
author
Artur Zakirov
committed
Fixes for retention and validate commands
1 parentd10e5f1 commitaa27178

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6 files changed

+95
-41
lines changed

6 files changed

+95
-41
lines changed

‎catalog.c‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -314,7 +314,7 @@ pgBackupWriteResultSection(FILE *out, pgBackup *backup)
314314
}
315315
}
316316

317-
/* create backup.ini */
317+
/* create backup.conf */
318318
void
319319
pgBackupWriteIni(pgBackup*backup)
320320
{
@@ -324,7 +324,7 @@ pgBackupWriteIni(pgBackup *backup)
324324
pgBackupGetPath(backup,ini_path,lengthof(ini_path),BACKUP_CONF_FILE);
325325
fp=fopen(ini_path,"wt");
326326
if (fp==NULL)
327-
elog(ERROR,"cannot openINI file \"%s\": %s",ini_path,
327+
elog(ERROR,"cannot openconfiguration file \"%s\": %s",ini_path,
328328
strerror(errno));
329329

330330
/* configuration section */

‎delete.c‎

Lines changed: 19 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -158,6 +158,7 @@ do_retention_purge(void)
158158
XLogRecPtroldest_lsn=InvalidXLogRecPtr;
159159
TimeLineIDoldest_tli;
160160
intret;
161+
boolkeep_next_backup= true;/* Do not delete first full backup */
161162

162163
if (retention_redundancy>0)
163164
elog(LOG,"REDUNDANCY=%u",retention_redundancy);
@@ -190,6 +191,10 @@ do_retention_purge(void)
190191
pgBackup*backup= (pgBackup*)parray_get(backup_list,i);
191192
uint32backup_num_evaluate=backup_num;
192193

194+
/* Consider only validated and correct backups */
195+
if (backup->status!=BACKUP_STATUS_OK)
196+
continue;
197+
193198
/*
194199
* When a validate full backup was found, we can delete the
195200
* backup that is older than it using the number of generations.
@@ -198,12 +203,24 @@ do_retention_purge(void)
198203
backup_num++;
199204

200205
/* Evaluate if this backup is eligible for removal */
201-
if (backup_num_evaluate+1 <=retention_redundancy||
202-
(retention_window>0&&backup->start_time >=days_threshold))
206+
if (keep_next_backup||
207+
backup_num_evaluate+1 <=retention_redundancy||
208+
(retention_window>0&&backup->recovery_time >=days_threshold))
203209
{
204210
/* Save LSN and Timeline to remove unnecessary WAL segments */
205211
oldest_lsn=backup->start_lsn;
206212
oldest_tli=backup->tli;
213+
214+
/* Save parent backup of this incremental backup */
215+
if (backup->backup_mode!=BACKUP_MODE_FULL)
216+
keep_next_backup= true;
217+
/*
218+
* Previous incremental backup was kept or this is first backup
219+
* so do not delete this backup.
220+
*/
221+
else
222+
keep_next_backup= false;
223+
207224
continue;
208225
}
209226

‎parsexlog.c‎

Lines changed: 63 additions & 22 deletions
Original file line numberDiff line numberDiff line change
@@ -104,18 +104,20 @@ extractPageMap(const char *archivedir, XLogRecPtr startpoint, TimeLineID tli,
104104
void
105105
validate_wal(pgBackup*backup,
106106
constchar*archivedir,
107-
XLogRecPtrstartpoint,
108107
time_ttarget_time,
109-
TransactionIdrecovery_target_xid,
108+
TransactionIdtarget_xid,
110109
TimeLineIDtli)
111110
{
111+
XLogRecPtrstartpoint=backup->start_lsn;
112112
XLogRecord*record;
113113
XLogReaderState*xlogreader;
114114
char*errormsg;
115115
XLogPageReadPrivateprivate;
116116
TransactionIdlast_xid=InvalidTransactionId;
117117
TimestampTzlast_time=0;
118-
chartimestamp[100];
118+
chartimestamp[100];
119+
boolall_wal= false,
120+
got_endpoint= false;
119121

120122
private.archivedir=archivedir;
121123
private.tli=tli;
@@ -130,32 +132,39 @@ validate_wal(pgBackup *backup,
130132
record=XLogReadRecord(xlogreader,startpoint,&errormsg);
131133
if (record==NULL)
132134
{
133-
XLogRecPtrerrptr;
134-
135-
errptr=startpoint ?startpoint :xlogreader->EndRecPtr;
136-
if (recovery_target_xid==InvalidTransactionId&&target_time==0)
137-
{
138-
break;
139-
}
140-
141135
if (errormsg)
142-
elog(ERROR,"could not read WAL record at %X/%X: %s",
143-
(uint32) (errptr >>32), (uint32) (errptr),
144-
errormsg);
145-
else
146-
elog(ERROR,"could not read WAL record at %X/%X",
147-
(uint32) (errptr >>32),
148-
(uint32) (errptr));
136+
elog(WARNING,"%s",errormsg);
137+
138+
break;
149139
}
150140

141+
/* Got WAL record at stop_lsn */
142+
if (xlogreader->ReadRecPtr==backup->stop_lsn)
143+
got_endpoint= true;
144+
151145
timestamp_record=getRecordTimestamp(xlogreader,&last_time);
152146
if (XLogRecGetXid(xlogreader)!=InvalidTransactionId)
153147
last_xid=XLogRecGetXid(xlogreader);
154-
if (recovery_target_xid!=InvalidTransactionId&&recovery_target_xid==last_xid)
155-
break;
156148

157-
if (target_time!=0&&timestamp_record&&timestamptz_to_time_t(last_time) >=target_time)
149+
/* Check target xid */
150+
if (TransactionIdIsValid(target_xid)&&target_xid==last_xid)
151+
{
152+
all_wal= true;
153+
break;
154+
}
155+
/* Check target time */
156+
elseif (target_time!=0&&timestamp_record&&timestamptz_to_time_t(last_time) >=target_time)
157+
{
158+
all_wal= true;
159+
break;
160+
}
161+
/* Stop if there are no target xid and target time */
162+
elseif (!TransactionIdIsValid(target_xid)&&target_time==0&&
163+
xlogreader->ReadRecPtr==backup->stop_lsn)
164+
{
165+
all_wal= true;
158166
break;
167+
}
159168

160169
startpoint=InvalidXLogRecPtr;/* continue reading at next record */
161170
}
@@ -167,7 +176,39 @@ validate_wal(pgBackup *backup,
167176
if (last_xid==InvalidTransactionId)
168177
last_xid=backup->recovery_xid;
169178

170-
elog(INFO,"Backup validation stopped on %s time and xid:"XID_FMT,timestamp,last_xid);
179+
/* There are all need WAL records */
180+
if (all_wal)
181+
elog(INFO,"Backup validation stopped on %s time and xid:"XID_FMT,
182+
timestamp,last_xid);
183+
/* There are not need WAL records */
184+
else
185+
{
186+
if (!got_endpoint)
187+
elog(ERROR,"there are not enough WAL records to restore from %X/%X to %X/%X",
188+
(uint32) (backup->start_lsn >>32),
189+
(uint32) (backup->start_lsn),
190+
(uint32) (backup->stop_lsn >>32),
191+
(uint32) (backup->stop_lsn));
192+
else
193+
{
194+
if (target_time>0)
195+
time2iso(timestamp,lengthof(timestamp),
196+
timestamptz_to_time_t(target_time));
197+
198+
if (TransactionIdIsValid(target_xid)&&target_time!=0)
199+
elog(WARNING,"there are not WAL records to time %s and xid "XID_FMT,
200+
timestamp,target_xid);
201+
elseif (TransactionIdIsValid(target_xid))
202+
elog(WARNING,"there are not WAL records to xid "XID_FMT,
203+
target_xid);
204+
elseif (target_time!=0)
205+
elog(WARNING,"there are not WAL records to time %s ",
206+
timestamp);
207+
208+
elog(WARNING,"recovery can be done to time %s and xid "XID_FMT,
209+
timestamp,last_xid);
210+
}
211+
}
171212

172213
/* clean */
173214
XLogReaderFree(xlogreader);

‎pg_probackup.h‎

Lines changed: 1 addition & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -356,9 +356,8 @@ extern void extractPageMap(const char *datadir,
356356
XLogRecPtrendpoint);
357357
externvoidvalidate_wal(pgBackup*backup,
358358
constchar*archivedir,
359-
XLogRecPtrstartpoint,
360359
time_ttarget_time,
361-
TransactionIdrecovery_target_xid,
360+
TransactionIdtarget_xid,
362361
TimeLineIDtli);
363362

364363
/* in util.c */

‎tests/validate_test.py‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -58,4 +58,4 @@ def test_validate_broke_wal_1(self):
5858

5959
id_backup=self.show_pb(node)[0].id
6060
res=self.validate_pb(node,id_backup,options=['--xid=%s'%target_xid])
61-
self.assertIn(six.b("couldnotreadWALrecord at"),res)
61+
self.assertIn(six.b("there arenot WALrecords to xid"),res)

‎validate.c‎

Lines changed: 9 additions & 12 deletions
Original file line numberDiff line numberDiff line change
@@ -74,16 +74,16 @@ int do_validate(time_t backup_id,
7474
constchar*target_inclusive,
7575
TimeLineIDtarget_tli)
7676
{
77-
inti;
78-
intbase_index;/* index of base (full) backup */
79-
intlast_restored_index;/* index of last restored database backup */
77+
inti;
78+
intbase_index;/* index of base (full) backup */
79+
intlast_restored_index;/* index of last restored database backup */
8080
TimeLineIDbackup_tli;
8181
TimeLineIDnewest_tli;
82-
parray*timelines;
83-
parray*backups;
82+
parray*timelines;
83+
parray*backups;
8484
pgRecoveryTarget*rt=NULL;
85-
pgBackup*base_backup=NULL;
86-
boolbackup_id_found= false;
85+
pgBackup*base_backup=NULL;
86+
boolbackup_id_found= false;
8787

8888
catalog_lock(false);
8989

@@ -187,15 +187,12 @@ int do_validate(time_t backup_id,
187187
}
188188

189189
/* and now we must check WALs */
190-
{
191-
pgBackup*backup= (pgBackup*)parray_get(backups,last_restored_index);
192-
validate_wal(backup,
190+
if (!stream_wal)
191+
validate_wal((pgBackup*)parray_get(backups,last_restored_index),
193192
arclog_path,
194-
backup->start_lsn,
195193
rt->recovery_target_time,
196194
rt->recovery_target_xid,
197195
target_tli);
198-
}
199196

200197
/* release catalog lock */
201198
catalog_unlock();

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