Open Database
failed - DATAFILE NEEDS MORE RECOVERY TO BE CONSISTENT ORA-1194 ORA-1547
ORA-1110
Applies to:
Oracle Database - Enterprise Edition - Version
9.2.0.1 and later
Information in this document applies to any platform.
Purpose
The goal of this article is to assist DBAs who encounter the following errors
at Database open.
ORA-1194 "file %s needs more recovery to be
consistent"
ORA-1547 "warning: RECOVER succeeded but OPEN RESETLOGS would get
error below"
ORA-1110 "data file %s: '%s'"
Scope
This article is meant for database administrators and backup and recovery
specialists tasked with the restore and recovery of a database
Details
Assuming All Datafiles was either successfully restored, and/or recovery was
done with existing database datafiles.
Then open the database failed with
errors like:
ORA-01547: warning: RECOVER succeeded but OPEN RESETLOGS would get error
below
ORA-01194: file 1 needs more recovery to be consistent
ORA-01110:
data file 1: '/u01/app/oracle/oradata/V1123/system01.dbf'
Scenario 1: Current Controlfile is available
This shows the Information whats needed for recovery, usually you will not
see the errors as above at open database, but nevertheless giving this
example.
1) Ensure Instance is Mounted and ALL Datafiles ONLINE
If the CURRENT CONTROLFILE is used then you can run recover database,
and it will
apply all archivelogs, and the online 'current' redolog if
available, and finally you can open database
Example:
SQL> select name, controlfile_type from v$database
;
NAME CONTROL
--------- -------
V1123
CURRENT
SQL> recover automatic database ;
..
Media recovery complete
SQL> alter database open
Scenario 2: Backup Controlfile is used for recovery
Please see steps below showing you an example getting the errors like
ORA-1194, ORA-1547, ORA-1110,
and how to verify status of Controlfile,
Datafiles, Logfiles, and finally recover and open database.
SQL> select name, controlfile_type from v$database
;
NAME CONTROL
--------- -------
V1123 BACKUP --
controlfile_type is "Backup" Controlfile
SQL> select status,
2
resetlogs_change#,
3 resetlogs_time,
4
checkpoint_change#,
5 to_char(checkpoint_time, 'DD-MON-YYYY
HH24:MI:SS') as checkpoint_time,
6 count(*)
7 from
v$datafile_header
8 group by status, resetlogs_change#, resetlogs_time,
checkpoint_change#, checkpoint_time
9 order by status,
checkpoint_change#, checkpoint_time ;
STATUS RESETLOGS_CHANGE#
RESETLOGS_TIME CHECKPOINT_CHANGE# CHECKPOINT_TIME
COUNT(*)
------- ----------------- -------------------- ------------------
-------------------- ----------
ONLINE 995548
15-FEB-2012:17:17:20 2446300 13-FEB-2013
15:09:44 1 -- Datafile(s) are at different checkpoint_change# (scn),
so not consistent
ONLINE 995548 15-FEB-2012:17:17:20
2472049 13-FEB-2013 16:02:22
6
SQL>
SQL>
SQL> -- Check for datafile status, and
fuzziness
SQL> select STATUS, ERROR, FUZZY, count(*) from
v$datafile_header group by STATUS, ERROR, FUZZY ;
STATUS
ERROR FUZ
COUNT(*)
-------
----------------------------------------------------------------- ---
----------
ONLINE
YES 7
SQL>
SQL>
SQL> -- Check for MIN, and MAX
SCN in Datafiles
SQL> select min(CHECKPOINT_CHANGE#),
max(CHECKPOINT_CHANGE#) from v$datafile_header ;
MIN(CHECKPOINT_CHANGE#)
MAX(CHECKPOINT_CHANGE#)
-----------------------
-----------------------
2446300 2472049
SQL>
SQL> select substr(L.GROUP#,1,6) GROUP#
2 ,substr(L.THREAD#,1,7) THREAD#
3
,substr(L.SEQUENCE#,1,10) SEQUENCE#
4
,substr(L.MEMBERS,1,7) MEMBERS
5
,substr(L.ARCHIVED,1,8) ARCHIVED
6
,substr(L.STATUS,1,10) STATUS
7
,substr(L.FIRST_CHANGE#,1,16) FIRST_CHANGE#
8
,substr(LF.member,1,60) REDO_LOGFILE
9 from GV$LOG L, GV$LOGFILE
LF
10 where L.GROUP# = LF.GROUP# ;
GROUP# THREAD# SEQUENCE# MEMBERS
ARC STATUS FIRST_CHANGE# REDO_LOGFILE
------ ------- ----------
------- --- ---------- ----------------
------------------------------------------------------------
1 1
454 1 NO CURRENT
2471963 /u01/app/oracle/oradata/V1123/redo01.log
<-- This is CURRENT log containing most recent redo, and is available
3 1 453 1 YES INACTIVE 2471714
/u01/app/oracle/oradata/V1123/redo03.log
2 1 452 1
YES INACTIVE 2451698
/u01/app/oracle/oradata/V1123/redo02.log
SQL>
-- Use
MIN(CHECKPOINT_CHANGE#) 2446300 as found before, then use it with this query to
find the
-- first SEQ# 'number' and archivelog file needed for recover to
start with.
-- All SEQ# up to the online Current Redolog SEQ# must be
available without any gap for successful recovery
--
MIN(CHECKPOINT_CHANGE#) 2446300
SQL> select thread#, sequence#,
substr(name,1,80) from v$Archived_log
where 2446300 between
first_change# and next_change#;
THREAD# SEQUENCE#
SUBSTR(NAME,1,80)
---------- ----------
--------------------------------------------------------------------------------
1 449
/u01/app/oracle/oradata/V1123/arch1/arch_1_449_775329440.arc
1 449
/u01/app/oracle/fra/V1123/archivelog/2013_02_13/o1_mf_1_449_8kq7oc6y_.arc
1 450
/u01/app/oracle/oradata/V1123/arch1/arch_1_450_775329440.arc
1 450
/u01/app/oracle/fra/V1123/archivelog/2013_02_13/o1_mf_1_450_8kqbn929_.arc
SQL>
SQL>
select * from v$recover_file ; -- Checking for Datafile(s) which needs
recovery
FILE# ONLINE ONLINE_
ERROR CHANGE#
TIME
---------- ------- -------
----------------------------------------------------------------- ----------
--------------------
6 ONLINE
ONLINE
2446300 13-FEB-2013:15:09:44
SQL>
If you use a "BACKUP CONTROLFILE", or previously used a CANCEL based recover
command
then we need to recover, and finally 'manual' apply the online
current redolog.
Example:
SQL> select name, controlfile_type from v$database
;
NAME CONTROL
--------- -------
V1123
BACKUP
SQL>
SQL> RECOVER DATABASE USING BACKUP CONTROLFILE UNTIL
CANCEL ;
ORA-00279: change 2446300 generated at 02/13/2013 15:09:44
needed for thread 1
ORA-00289: suggestion :
/u01/app/oracle/fra/V1123/archivelog/2013_02_13/o1_mf_1_450_8kqbn929_.arc
ORA-00280:
change 2446300 for thread 1 is in sequence #450
Specify log:
{=suggested | filename | AUTO | CANCEL}
auto
ORA-00279: change
2451694 generated at 02/13/2013 16:00:25 needed for thread 1
ORA-00289:
suggestion :
/u01/app/oracle/fra/V1123/archivelog/2013_02_13/o1_mf_1_451_8kqbnbmh_.arc
ORA-00280:
change 2451694 for thread 1 is in sequence #451
ORA-00278: log file
'/u01/app/oracle/fra/V1123/archivelog/2013_02_13/o1_mf_1_450_8kqbn929_.arc' no
longer needed for this recovery
...
< all required logs applied >
...
ORA-00279: change 2471963 generated at 02/13/2013 16:02:19 needed for
thread 1
ORA-00289: suggestion :
/u01/app/oracle/fra/V1123/archivelog/2013_02_13/o1_mf_1_454_%u_.arc
ORA-00280:
change 2471963 for thread 1 is in sequence #454
ORA-00278: log file
'/u01/app/oracle/fra/V1123/archivelog/2013_02_13/o1_mf_1_453_8kqbqvrk_.arc' no
longer needed for this recovery <-- All Redo, up to and including SEQ# 453
is applied
ORA-00308: cannot open archived log
'/u01/app/oracle/fra/V1123/archivelog/2013_02_13/o1_mf_1_454_%u_.arc'
<<<-- "SEQ# 454" requested, which is in ONLINE REDOLOG
as seen before
ORA-27037: unable to obtain file status
Linux-x86_64
Error: 2: No such file or directory
Additional information:
3
ORA-01547: warning: RECOVER succeeded but OPEN RESETLOGS
would get error below
ORA-01194: file 1 needs more recovery
to be consistent
ORA-01110: data file 1:
'/u01/app/oracle/oradata/V1123/system01.dbf'
SQL>
SQL>
select * from v$recover_file ;
FILE# ONLINE ONLINE_
ERROR CHANGE#
TIME
---------- ------- -------
----------------------------------------------------------------- ----------
--------------------
6 ONLINE
ONLINE
2471963 13-FEB-2013:16:02:19
SQL>
SQL> alter database open
resetlogs ;
alter database open resetlogs
*
ERROR at line
1:
ORA-01194: file 1 needs more recovery to be consistent
ORA-01110: data
file 1: '/u01/app/oracle/oradata/V1123/system01.dbf'
SQL>
The following query will show you the SCN to which we must at least recover
to, to get all datafiles consistent.
SQL> select min(FHSCN) "LOW FILEHDR
SCN"
, max(FHSCN) "MAX FILEHDR SCN"
, max(FHAFS)
"Min PITR ABSSCN"
from X$KCVFH ;
LOW FILEHDR SCN MAX FILEHDR
SCN Min PITR ABSSCN
---------------- ----------------
----------------
2446300 2472049 0
-- Example
output explained:
--
-- "LOW FILEHDR SCN" - this is the SCN at which
recovery process starts
-- "MAX FILEHDR SCN" - this is the SCN we must
recover to to get all datafiles consistent
--
-- IF "Min PITR
ABSSCN" != 0 AND > "MAX FILEHDR SCN"
-- THEN "Min PITR ABSSCN" is
the SCN we must recover to to get all datafiles consistent
ABSSCN = Absolute SCN
Comment:
In the above
output/sample we see, redo (archivelogs) was applied and datafile 6 was rolled
forward but still needs more recovery and redo to be applied.
Database
Recovery did not complete, because the online 'current' redolog is not applied
automatically with a 'BACKUP' controlfile.
As we use a Backup Controlfile we
must 'manually' apply the online 'current' redolog
'/u01/app/oracle/oradata/V1123/redo01.log' having SEQ# 454 ( SCN 2472049)
!
Additional
Note:
As this is recover with a Backup Controlfile, or controlfile
create from Tracefile (sql> alter database backup to trace;) ,
query of
v$log/v$logfile will possibly not give the correct information, about which
logfile contains which sequence number (seq#).
# Options to find the
Online log to be used
a: Check the Alert.log file for the last
sequences used with 'Online Redolog files'
b: If Alert.log is lost you
may simply try all online redolog files, if the wrong logfile is chosen nothing
will be applied,
but you will see in in the output message which
sequence is in that online redolog file.
Then simply try the
next online redolog file until you get 'media recovery complete'
message.
c: You may also dump the file log file headers for Online
redolog file(s)
Example:
--------
sql> alter
system dump logfile '/u01/app/oracle/oradata/V1123/redo01.log' scn min 1 scn max
1 ;
-- This will write a tracefile with the header dump to your
'trace' (11g) [ or udump (<=10g) ] directory
-- Check the tracefile
for similar entry like...
~~~
..
descrip:"Thread
0001, Seq# 0000000454 ...
..
Low scn: 0x.....
Next scn: 0x.....
..
~~~
SQL> RECOVER DATABASE USING BACKUP CONTROLFILE UNTIL
CANCEL ;
.
ORA-00279: change 2471963 generated at
02/13/2013 16:02:19 needed for thread 1
ORA-00289: suggestion :
/u01/app/oracle/fra/V1123/archivelog/2013_02_13/o1_mf_1_454_%u_.arc
ORA-00280:
change 2471963 for thread 1 is in sequence #454
Specify log:
{=suggested | filename | AUTO |
CANCEL}
'/u01/app/oracle/oradata/V1123/redo01.log' <--
specify the online redologfile having SEQ# 454 to be manually
applied
Log applied.
Media recovery complete.
SQL> alter database
open resetlogs ;
Database altered.
SQL>
Note:
If after applying all archive logs and online
redo logs the database does not open
please provide the following script
output to Oracle support to assist with the recovery.
( Please upload
spooled file: recovery_info.txt )
SQL> set pagesize 20000
set
linesize 180
set pause off
set serveroutput on
set
feedback on
set echo on
set numformat
999999999999999
Spool recovery_info.txt
select substr(name,
1, 50), status from v$datafile;
select substr(name,1,40), recover,
fuzzy, checkpoint_change# from v$datafile_header;
select
GROUP#,substr(member,1,60) from v$logfile;
select * from
v$recover_file;
select distinct status from v$backup;
select
hxfil FILENUMBER, fhsta STATUS, fhscn SCN, FHAFS ABSSCN , fhrba_Seq SEQUENCE
from x$kcvfh;
select distinct (fuzzy) from v$datafile_header;
spool off
exit;