1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML
><HEAD
><TITLE
>Recovery Target Settings</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
REV="MADE"
HREF="mailto:pgsql-docs@postgresql.org"><LINK
REL="HOME"
TITLE="PostgreSQL 9.3.13 Documentation"
HREF="index.html"><LINK
REL="UP"
TITLE="Recovery Configuration"
HREF="recovery-config.html"><LINK
REL="PREVIOUS"
TITLE="Archive Recovery Settings"
HREF="archive-recovery-settings.html"><LINK
REL="NEXT"
TITLE="Standby Server Settings"
HREF="standby-settings.html"><LINK
REL="STYLESHEET"
TYPE="text/css"
HREF="stylesheet.css"><META
HTTP-EQUIV="Content-Type"
CONTENT="text/html; charset=ISO-8859-1"><META
NAME="creation"
CONTENT="2016-05-09T21:13:26"></HEAD
><BODY
CLASS="SECT1"
><DIV
CLASS="NAVHEADER"
><TABLE
SUMMARY="Header navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="5"
ALIGN="center"
VALIGN="bottom"
><A
HREF="index.html"
>PostgreSQL 9.3.13 Documentation</A
></TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="top"
><A
TITLE="Archive Recovery Settings"
HREF="archive-recovery-settings.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="top"
><A
HREF="recovery-config.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="60%"
ALIGN="center"
VALIGN="bottom"
>Chapter 26. Recovery Configuration</TD
><TD
WIDTH="20%"
ALIGN="right"
VALIGN="top"
><A
TITLE="Standby Server Settings"
HREF="standby-settings.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="RECOVERY-TARGET-SETTINGS"
>26.2. Recovery Target Settings</A
></H1
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
><A
NAME="RECOVERY-TARGET-NAME"
></A
><TT
CLASS="VARNAME"
>recovery_target_name</TT
>
(<TT
CLASS="TYPE"
>string</TT
>)</DT
><DD
><P
> This parameter specifies the named restore point, created with
<CODE
CLASS="FUNCTION"
>pg_create_restore_point()</CODE
> to which recovery will proceed.
At most one of <TT
CLASS="VARNAME"
>recovery_target_name</TT
>,
<A
HREF="recovery-target-settings.html#RECOVERY-TARGET-TIME"
>recovery_target_time</A
> or
<A
HREF="recovery-target-settings.html#RECOVERY-TARGET-XID"
>recovery_target_xid</A
> can be specified. The default is to
recover to the end of the WAL log.
</P
></DD
><DT
><A
NAME="RECOVERY-TARGET-TIME"
></A
><TT
CLASS="VARNAME"
>recovery_target_time</TT
>
(<TT
CLASS="TYPE"
>timestamp</TT
>)</DT
><DD
><P
> This parameter specifies the time stamp up to which recovery
will proceed.
At most one of <TT
CLASS="VARNAME"
>recovery_target_time</TT
>,
<A
HREF="recovery-target-settings.html#RECOVERY-TARGET-NAME"
>recovery_target_name</A
> or
<A
HREF="recovery-target-settings.html#RECOVERY-TARGET-XID"
>recovery_target_xid</A
> can be specified.
The default is to recover to the end of the WAL log.
The precise stopping point is also influenced by
<A
HREF="recovery-target-settings.html#RECOVERY-TARGET-INCLUSIVE"
>recovery_target_inclusive</A
>.
</P
></DD
><DT
><A
NAME="RECOVERY-TARGET-XID"
></A
><TT
CLASS="VARNAME"
>recovery_target_xid</TT
> (<TT
CLASS="TYPE"
>string</TT
>)</DT
><DD
><P
> This parameter specifies the transaction ID up to which recovery
will proceed. Keep in mind
that while transaction IDs are assigned sequentially at transaction
start, transactions can complete in a different numeric order.
The transactions that will be recovered are those that committed
before (and optionally including) the specified one.
At most one of <TT
CLASS="VARNAME"
>recovery_target_xid</TT
>,
<A
HREF="recovery-target-settings.html#RECOVERY-TARGET-NAME"
>recovery_target_name</A
> or
<A
HREF="recovery-target-settings.html#RECOVERY-TARGET-TIME"
>recovery_target_time</A
> can be specified.
The default is to recover to the end of the WAL log.
The precise stopping point is also influenced by
<A
HREF="recovery-target-settings.html#RECOVERY-TARGET-INCLUSIVE"
>recovery_target_inclusive</A
>.
</P
></DD
><DT
><A
NAME="RECOVERY-TARGET-INCLUSIVE"
></A
><TT
CLASS="VARNAME"
>recovery_target_inclusive</TT
>
(<TT
CLASS="TYPE"
>boolean</TT
>)</DT
><DD
><P
> Specifies whether we stop just after the specified recovery target
(<TT
CLASS="LITERAL"
>true</TT
>), or just before the recovery target
(<TT
CLASS="LITERAL"
>false</TT
>).
Applies to both <A
HREF="recovery-target-settings.html#RECOVERY-TARGET-TIME"
>recovery_target_time</A
>
and <A
HREF="recovery-target-settings.html#RECOVERY-TARGET-XID"
>recovery_target_xid</A
>, whichever one is
specified for this recovery. This indicates whether transactions
having exactly the target commit time or ID, respectively, will
be included in the recovery. Default is <TT
CLASS="LITERAL"
>true</TT
>.
</P
></DD
><DT
><A
NAME="RECOVERY-TARGET-TIMELINE"
></A
><TT
CLASS="VARNAME"
>recovery_target_timeline</TT
>
(<TT
CLASS="TYPE"
>string</TT
>)</DT
><DD
><P
> Specifies recovering into a particular timeline. The default is
to recover along the same timeline that was current when the
base backup was taken. Setting this to <TT
CLASS="LITERAL"
>latest</TT
> recovers
to the latest timeline found in the archive, which is useful in
a standby server. Other than that you only need to set this parameter
in complex re-recovery situations, where you need to return to
a state that itself was reached after a point-in-time recovery.
See <A
HREF="continuous-archiving.html#BACKUP-TIMELINES"
>Section 24.3.5</A
> for discussion.
</P
></DD
><DT
><A
NAME="PAUSE-AT-RECOVERY-TARGET"
></A
><TT
CLASS="VARNAME"
>pause_at_recovery_target</TT
>
(<TT
CLASS="TYPE"
>boolean</TT
>)</DT
><DD
><P
> Specifies whether recovery should pause when the recovery target
is reached. The default is true.
This is intended to allow queries to be executed against the
database to check if this recovery target is the most desirable
point for recovery. The paused state can be resumed by using
<CODE
CLASS="FUNCTION"
>pg_xlog_replay_resume()</CODE
> (See
<A
HREF="functions-admin.html#FUNCTIONS-RECOVERY-CONTROL-TABLE"
>Table 9-63</A
>), which then
causes recovery to end. If this recovery target is not the
desired stopping point, then shutdown the server, change the
recovery target settings to a later target and restart to
continue recovery.
</P
><P
> This setting has no effect if <A
HREF="runtime-config-replication.html#GUC-HOT-STANDBY"
>hot_standby</A
> is not
enabled, or if no recovery target is set.
</P
></DD
></DL
></DIV
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
SUMMARY="Footer navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="archive-recovery-settings.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="index.html"
ACCESSKEY="H"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="standby-settings.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>Archive Recovery Settings</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="recovery-config.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>Standby Server Settings</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>
|