당신은 주제를 찾고 있습니까 “ora-38760 this database instance failed to turn on flashback database – Turn FLASHBACK DATABASE on \u0026 off while the Database stays OPEN“? 다음 카테고리의 웹사이트 https://chewathai27.com/you 에서 귀하의 모든 질문에 답변해 드립니다: https://chewathai27.com/you/blog. 바로 아래에서 답을 찾을 수 있습니다. 작성자 Uwe Hesse about Database Technology 이(가) 작성한 기사에는 조회수 1,381회 및 좋아요 10개 개의 좋아요가 있습니다.
From the alert log, it is clear that flashback mode is enabled in the database and someone has mistakenly deleted flashback log physically. So, to fix this issue, the only solution is to disable the flashback mode and open the database.
ora-38760 this database instance failed to turn on flashback database 주제에 대한 동영상 보기
여기에서 이 주제에 대한 비디오를 시청하십시오. 주의 깊게 살펴보고 읽고 있는 내용에 대한 피드백을 제공하세요!
d여기에서 Turn FLASHBACK DATABASE on \u0026 off while the Database stays OPEN – ora-38760 this database instance failed to turn on flashback database 주제에 대한 세부정보를 참조하세요
The clip demonstrates how to change FLASHBACK DATABASE without having to restart the instance. A text version is here: https://uhesse.com/2010/06/25/turning-flashback-database-on-off-with-instance-in-status-open/ The demo is done with 12c but the shown can be done with 11gR2 as well.
ora-38760 this database instance failed to turn on flashback database 주제에 대한 자세한 내용은 여기를 참조하세요.
ORA-38760: This database instance failed to turn … – Doyensys
SOLUTION: Check if flashback database is disable or not. When checked the flashback status after disabling flashback, it shows ‘RESTORE POINT …
Source: doyensys.com
Date Published: 6/9/2021
View: 4607
STARTUP Database failed ORA-38760 to turn on Flashback …
Oracle Database – Enterprise Edition – Version 10.2.0.4 and later: STARTUP Database failed ORA-38760 to turn on Flashback Database.
Source: support.oracle.com
Date Published: 11/10/2021
View: 2518
ORA-38760: This database instance … – Burleson Consulting
Cause: Database flashback is on but this instance failed to start generating flashback data. Look in alert log for more specific errors. Action: Correct the …
Source: dba-oracle.com
Date Published: 10/27/2022
View: 9974
ORA-38760: This database instance failed to turn … – IT Tutorial
When you startup Oracle Database, you can get ” ORA-38760: This database instance failed to turn on flashback database ” error.
Source: ittutorial.org
Date Published: 12/16/2022
View: 2012
ORA-38760: This database instance failed to turn on …
ORA-38760: This database instance failed to turn on flashback database · 1. MOUNT the database and issue: · 2. Look for the trace file generated in the trace sub- …
Source: www.thegeekdiary.com
Date Published: 7/24/2022
View: 4960
ORA-38760 While starting an Oracle Database
From the alert log, it is clear that flashback mode is enabled in the database and someone has mistakenly deleted flashback log physically.
Source: ahmedfattah.com
Date Published: 2/14/2022
View: 2959
ORA-38760: This database instance failed to turn on …
Following error happens when run command SQL > startup ORA-38760: This database instance failed to turn on flashback database ・Same error happens even …
Source: userapps.support.sap.com
Date Published: 6/6/2021
View: 6259
ORA-38760: This database instance failed to turn on …
ORA-38760 during opening the database. The database had flashback enabled when backup was taken, and backup was used to restore the …
Source: www.oraclenext.com
Date Published: 11/23/2022
View: 7913
ODG — ORA-38760 This database instance failed to turn on …
Now it’s clear why Oracle complained about “ORA-38760: This database instance failed to turn on flashback”. It was because the standby had …
Source: joelitechlife.ca
Date Published: 10/12/2021
View: 1409
주제와 관련된 이미지 ora-38760 this database instance failed to turn on flashback database
주제와 관련된 더 많은 사진을 참조하십시오 Turn FLASHBACK DATABASE on \u0026 off while the Database stays OPEN. 댓글에서 더 많은 관련 이미지를 보거나 필요한 경우 더 많은 관련 기사를 볼 수 있습니다.
주제에 대한 기사 평가 ora-38760 this database instance failed to turn on flashback database
- Author: Uwe Hesse about Database Technology
- Views: 조회수 1,381회
- Likes: 좋아요 10개
- Date Published: 2017. 1. 2.
- Video Url link: https://www.youtube.com/watch?v=U8T2RJ7yDzU
ORA-38760: This database instance failed to turn on flashback database – DBACLASS
PROBLEM:
While starting the database, got below error.
SQL> startup
ORACLE instance started.
Total System Global Area 1.2549E+10 bytes
Fixed Size 12155024 bytes
Variable Size 6744442736 bytes
Database Buffers 5771362304 bytes
Redo Buffers 21397504 bytes
Database mounted.
ORA-38760: This database instance failed to turn on flashback database.
SOLUTION:
1. Check the alert log:
Errors in file /oracle/app/oracle/diag/rdbms/db12cr2/DB12CR2/trace/DB12CR2_rvwr_2776.trc: ORA-38701: Flashback database log 1 seq 1 thread 1: “/oracle/app/oracle/product/12.2.0/dbhome_1/dbs/arch/FRA/DB12CR2/flashback/o1_mf_djfp4fjd_.flb” ORA-27037: unable to obtain file status SVR4 Error: 2: No such file or directory Additional information: 7 2017-05-01T09:43:24.075852+03:00 WARNING: Cannot open the flashback thread for this instance due to the above error. WARNING: Flashback thread open failed – to resolve this, either correct the reported error or turn off database flashback. 2017-05-01T09:43:24.076337+03:00 Database mounted in Exclusive Mode Lost write protection disabled Using STANDBY_ARCHIVE_DEST parameter default value as USE_DB_RECOVERY_FILE_DEST Completed: ALTER DATABASE MOUNT
2. Check the flashback_mode of the database.
SQL> select name,flashback_on from v$database; NAME FLASHBACK_ON ——— —————— DBATEST YES —– > FLASHBACK IS ENABLED…
From the alert log, it is clear that flashback mode is enabled in the database and someone has mistakenly deleted flashback log physically.
So, to fix this issue, the only solution is to disable the flashback mode and open the database.
SQL> select name,open_mode from v$database; NAME OPEN_MODE ——— ——————– DB12CR2 MOUNTED SQL> alter database flashback off; Database altered. SQL> alter database open; Database altered.
ORA-38760: This database instance failed to turn on flashback database
ERROR:
ORA-38760: This database instance failed to turn on flashback database
CAUSE:
When we are upgrading from 12c to 19c we faced below error,
SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-38760: This database instance failed to turn on flashback database
SOLUTION:
Check if flashback database is disable or not. When checked the flashback status after disabling flashback, it shows ‘RESTORE POINT ONLY’ instead of ‘NO’.
SQL> select flashback_on from v$database;
FLASHBACK_ON
——————
RESTORE POINT ONLY
Check the name from v$restore_point view but that would also fail with same error:
SQL> select * from v$restore_point;
select * from v$restore_point
*
ERROR at line 1:
ORA-38701: Flashback database log 2 seq 2 thread 1: “+
/ /flashback/log_2.2286.801367563” ORA-17503: ksfdopn:2 Failed to open file +
/ /flashback/log_2.2286.801367563 ORA-15012: ASM file ‘+
/ /flashback/log_2.2286.801367563’ does not exist Here we are not able to query v$restore _point to find out the name.
Now Dump the controlfile to get the restore point name:
SQL> oradebug setmypid
SQL> alter session set events ‘immediate trace name controlf level 9’;
SQL> oradebug tracefile_name
From trace file of controlfile dump, we could see below information:
***************************************************************************
RESTORE POINT RECORDS
***************************************************************************
(size = 212, compat size = 212, section max = 2048, section in-use = 1,
last-recid= 1, old-recno = 0, last-recno = 0)
(extent = 1, blkno = 240, numrecs = 2048)
RESTORE POINT #1:
restore point name:
guarantee flag: 1 incarnation: 2next record 0 <<<< Name of restore point restore point scn: 0x0000.fbff3d87 12/07/2012 02:16:32 Now we have name of Guaranteed Restore Point: SQL> Drop restore point ; SQL> alter database open;
Database Altered
STARTUP Database failed ORA-38760 to turn on Flashback Database
STARTUP Database failed ORA-38760 to turn on Flashback Database (Doc ID 1554596.1)
Last updated on MARCH 29, 2022
Applies to:
Symptoms
This is not RAC specific and could happen in Single Instances as well
if Flashback logs required are not available, as for example FLB logs was deleted using OS commands.
The following example shows symptoms seen in a RAC environment.
One of the RAC Instances does not come up, its looking for a Flash back log which has been accidently deleted.
Oracle is trying to turn on flashback database on startup automatically and failing with ORA-38760 as flashback log is missing.
Changes
Current flashback log deleted accidently from OS level.
Cause
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ORA-38760: This database instance failed to turn on flashback database tips
Question:
My database is set with flashback on, but I have deleted a flashback file (by mistake) and I can not open the database. When I start database, oracle show the error:
ORA-38760: This database instance failed to turn on flashback database
Is there a way to open the database?
Answer:
The Oracle docs note the following on ORA-38760:
ORA-38760: This database instance failed to turn on flashback database
Cause: Database flashback is on but this instance failed to start generating flashback data. Look in alert log for more specific errors.
Action: Correct the error or turn off database flashback.
Here are the steps to follow to open the database and recover your flashback file:
1. Shutdown Oracle
2. Startup nomount
3. Turn off flashback database
4. Startup Oracle database instance
5. Recover deleted flashback log files from disk or tape backup. (You should be backing up these critical files.)
6. Restart Oracle instance and enable flashback
ORA-38760: This database instance failed to turn on flashback database and Drop Restore Point
ORA-38760: This database instance failed to turn on flashback database and Drop Restore Point
When you startup Oracle Database, you can get ” ORA-38760: This database instance failed to turn on flashback database ” error.
ORA-38760: This database instance failed to turn on flashback database
When I startup Oracle database, I got following error.
[[email protected] ~]$ sqlplus / as sysdba SQL*Plus: Release 12.1.0.2.0 Production on Tue May 28 14:51:53 2019 Copyright (c) 1982, 2011, Oracle. All rights reserved. Connected to an idle instance. SQL> startup ORA-32004: obsolete or deprecated parameter(s) specified for RDBMS instance ORACLE instance started. Total System Global Area 2.1379E+10 bytes Fixed Size 2237776 bytes Variable Size 8522828464 bytes Database Buffers 1.2818E+10 bytes Redo Buffers 36098048 bytes Database mounted. ORA-38760: This database instance failed to turn on flashback databaseTry to disable Flashback and open database, or try to enable Flashback to see What is going on.
SQL> alter database flashback off; Database altered. SQL> SQL> SQL> alter database open; alter database open * ERROR at line 1: ORA-38760: This database instance failed to turn on flashback database SQL> alter database flashback on; alter database flashback on * ERROR at line 1: ORA-38706: Cannot turn on FLASHBACK DATABASE logging. ORA-38714: Instance recovery required.
Database is not opened, so we need to drop restore point that is created in the past. Find it and drop this restore point like following.
SQL> select NAME,SCN,GUARANTEE_FLASHBACK_DATABASE,DATABASE_INCARNATION# from v$restore_point; NAME ——————————————————————————– SCN GUA DATABASE_INCARNATION# ———- — ——————— RESTORE_POINT_17052019 5.9932E+12 YES 1 SQL> SQL> SQL> drop restore point RESTORE_POINT_17052019; Restore point dropped.
After Restore point is dropped, we can open database like following.
SQL> alter database open; Database altered.
Do you want to learn Oracle Database for Beginners, then read the following articles.
https://ittutorial.org/oracle-database-19c-tutorials-for-beginners/
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ORA-38760: This database instance failed to turn on flashback database – The Geek Diary
Question: How to find the name of old restore points when the database fails to open with the below error?
ORA-38760: This database instance failed to turn on flashback database.
All flashback logs have been manually deleted but the database will not open because there is an old restore point that needs to be dropped but the precise name has been forgotten.
1. MOUNT the database and issue:
SQL>alter session set events ‘immediate trace name controlf level 9′;
2. Look for the trace file generated in the trace sub-directory of the ADR (11G) or the udump directory for releases prior to 11G. The first few lines will be similar to this:
DUMP OF CONTROL FILES, Seq # 4780 = 0x12ac V10 STYLE FILE HEADER: Compatibility Vsn = 186646528=0xb200000 Db ID=4058109829=0xf1e1d785, Db Name='[DBNAME]’ Activation ID=0=0x0 Control Seq=4780=0x12ac, File size=624=0x270 File Number=0, Blksiz=16384, File Type=1 CONTROL
3. Any restore points will be listed in the section: NORMAL RESTORE POINT RECORDS:
NORMAL RESTORE POINT RECORDS *************************************************************************** (size = 212, compat size = 212, section max = 2083, section in-use = 1, last-recid= 1, old-recno = 1, last-recno = 1) (extent = 1, blkno = 198, numrecs = 2083) Earliest record: RECID #1 Recno 1 Record timestamp 01/24/11 15:37:22 RESTORE POINT #1: restore point name: guarantee flag: 0 incarnation: 1next record 0 restore point scn: 0x0000.000e8733 01/24/2011 15:37:22 Latest record: RECID #1 Recno 1 Record timestamp 01/24/11 15:37:22 RESTORE POINT #1: restore point name: guarantee flag: 0 incarnation: 1next record 0 restore point scn: 0x0000.000e8733 01/24/2011 15:37:22
ORA-38760 While starting an Oracle Database
This is a quick post about an issue that I faced while trying to start one database yesterday.
When I was trying to open one 12cR1 database, I got the following error:
SYS SQL>alter database open;
alter database open
*
ERROR at line 1:
ORA-38760: This database instance failed to turn on flashback database
The database status was “mounted”:
From the alert log, it is clear that flashback mode is enabled in the database and someone has mistakenly deleted flashback log physically. So, I tried to disable the flashback mode as follows:
After that, I tried to open the database again but I received the same set of the above errors.
Did someone create a restore point, let us check:
So, this is the reason behind this issue. There is a guaranteed restore point, and its flashback logs were physically deleted. Let us drop this restore point:
Now let us try to open the database:
Done !
Thanks
Ahmed
3008457 – ORA-38760: This database instance failed to turn on flashback database – NetWeaver
3008457 – ORA-38760: This database instance failed to turn on flashback database – NetWeaver
Symptom
・Following error happens when run command SQL > startup ORA-38760: This database instance failed to turn on flashback database ・Same error happens even though disabled flashback.
SQL> startup mount
SQL> alter database flashback off; Database altered. SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-38760: This database instance failed to turn on flashback database
Read more…
Environment
Netweaver on Oracle.
Product
SAP NetWeaver 2004 ; SAP NetWeaver 7.0 ; SAP NetWeaver 7.1 ; SAP NetWeaver 7.2 ; SAP NetWeaver 7.3 ; SAP NetWeaver 7.4 ; SAP NetWeaver 7.5 ; SAP enhancement package 1 for SAP NetWeaver 7.0 ; SAP enhancement package 1 for SAP NetWeaver 7.3 ; SAP enhancement package 2 for SAP NetWeaver 7.0 ; SAP enhancement package 3 for SAP NetWeaver 7.0
Keywords
ORA-38760, flashback , KBA , BC-DB-ORA , Oracle , Problem
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ORA-38760: This database instance failed to turn on flashback database
I faced this error message while opening my database, after restoring the database from a cold backup (OS level copy of all database files). I realized that when I backed up my database, it had flashback feature turned on and there was also a guaranteed restore point at the time I took the backup. And this time when I was trying to open this database, there were no old flashback logs available in fast recovery area.
ODG — ORA-38760 This database instance failed to turn on flashback
In my last post, I resolved an ODG issue that the primary server IP was wrong on the standby server. I walked away and one hour later, I was told the redo apply was still not working. “Something else is wrong?” I was thinking.
So I looked at the system again. I saw the error ORA-38760 in the alert log
2020-06-12T15:48:29.542757-04:00 ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT NODELAY Starting background process MRP0 2020-06-12T15:48:29.574028-04:00 MRP0 started with pid=46, OS id=6800 2020-06-12T15:48:34.605048-04:00 Started logmerger process 2020-06-12T15:48:34.620654-04:00 PR00 (PID:2948): MRP0: Background Media Recovery terminated with error 38760 2020-06-12T15:48:34.620654-04:00 Errors in file C:\PROD\DATA\LOGS\ORACLE\DIAG\diag\rdbms\PROD2\PROD\trace\PROD_pr00_2948.trc: ORA-38760: This database instance failed to turn on flashback database 2020-06-12T15:48:35.729969-04:00 Recovery Slave PR00 previously exited with exception 38760 2020-06-12T15:48:35.823714-04:00 Errors in file C:\PROD\DATA\LOGS\ORACLE\DIAG\diag\rdbms\PROD2\PROD\trace\PROD_mrp0_6800.trc: ORA-38760: This database instance failed to turn on flashback
The trace files didn’t contain too much information other than the ORA-38760 error itself. There were messages like below because OS is Windows:
Required IPC RDMAV_FORK_SAFE environment not set Required IPC RDMAV_HUGEPAGES_SAFE environment not set
According to MOS note: 19c Database On Windows – ADR Is Flooded By Linux-related Trace Files (Doc ID 2588705.1), “This is not an error or warning in particular.”
The standby database has flashback_on set to yes. It looked like Oracle tried to turn it on after the media recovery started, but failed to do so for some reasons. Then recovery service terminated. So I decided to turn it off and see how it goes:
SQL> alter database flashback off; Database altered. SQL> alter database flashback on; alter database flashback on * ERROR at line 1: ORA-38706: Cannot turn on FLASHBACK DATABASE logging. ORA-38788: More standby database recovery is needed
Now it’s clear why Oracle complained about “ORA-38760: This database instance failed to turn on flashback”. It was because the standby had fallen behind too much. And because of failing to turn on flashback as configured, redo log could not be applied — kind of like a deadlock. What I needed to do was to just start the media recovery with flashback off.
SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT NODELAY;
and wait for the redo applying to catch up. During this process, I see the warning ORA-16853 in ODG broker because DelayMins is set to “0”. It would disappear when the log gap was closed.
DGMGRL> show configuration; Configuration – DG_PROD Protection Mode: MaxPerformance Members: PROD1 – Primary database PROD2 – Physical standby database Warning: ORA-16853: apply lag has exceeded specified threshold Fast-Start Failover: Disabled Configuration Status: WARNING (status updated 43 seconds ago) DGMGRL> show database “PROD2” Database – PROD2 Role: PHYSICAL STANDBY Intended State: APPLY-ON Transport Lag: 0 seconds (computed 1 second ago) Apply Lag: 1 day(s) 24 minutes 33 seconds (computed 1 second ago) Average Apply Rate: 10.81 MByte/s Real Time Query: OFF Instance(s): mvf Database Warning(s): ORA-16853: apply lag has exceeded specified threshold Database Status: WARNING DGMGRL> show database “PROD2” DelayMins DelayMins = ‘0’
After the primary and the standby was in sync, I stopped redo apply on the standby, turned on flashback, then started redo apply again. The issue was fixed by then.
SQL> alter database recover managed standby database cancel; SQL> alter database recover managed standby database disconnect nodelay;
키워드에 대한 정보 ora-38760 this database instance failed to turn on flashback database
다음은 Bing에서 ora-38760 this database instance failed to turn on flashback database 주제에 대한 검색 결과입니다. 필요한 경우 더 읽을 수 있습니다.
이 기사는 인터넷의 다양한 출처에서 편집되었습니다. 이 기사가 유용했기를 바랍니다. 이 기사가 유용하다고 생각되면 공유하십시오. 매우 감사합니다!
사람들이 주제에 대해 자주 검색하는 키워드 Turn FLASHBACK DATABASE on \u0026 off while the Database stays OPEN
- Oracle
- Database
- Backup
- Recovery
- Flashback
Turn #FLASHBACK #DATABASE #on #\u0026 #off #while #the #Database #stays #OPEN
YouTube에서 ora-38760 this database instance failed to turn on flashback database 주제의 다른 동영상 보기
주제에 대한 기사를 시청해 주셔서 감사합니다 Turn FLASHBACK DATABASE on \u0026 off while the Database stays OPEN | ora-38760 this database instance failed to turn on flashback database, 이 기사가 유용하다고 생각되면 공유하십시오, 매우 감사합니다.
