Restarting Stanby database after host crash

Ok here is the scenario . . .
the host for my Physical Standby database crashes . . . you know the janitor kick the plug out . . .
How do I gracefully restart the Physical Standby database . . .
My concern/paranoia/fear is that during the restating of the Physical Standby database that it does NOT opens as the new Primary database.
I guess what I am looking for is the steps it takes to "restart" the Physical Standby and make sure it is in "managed standby".
Edited by: user10260925 on Apr 6, 2010 12:54 AM

A physical or logical standby will never open itself as a primary. If you have Fast-Start Failover configured then the Observer will make it a Primary if the requirements for the failover have been met. Otherwise you would have to manually enter the failover commands to make it a Primary database.
As of 10g Release 1 if you do a STARTUP on a Physical standby it will open the database in read only mode if possible (i.e. the apply had been terminated cleanly). If, as would be in your case, the apply was terminated in the middle of applying then the open would fail until redo apply had been restarted and cleaned up after itself. In any case, in 10g (10.1 and 10.2) restarting the apply would close the physical standby before starting the apply. As of 11g it will not close the standby as that is what is called Active Data Guard, the Apply running while the standby is open read only.
Now, to answer your last question, getting it into managed recovery again. If you use the Broker it will take care of that for you. If you do not use the Broker then you need to execute the ALTER DATABASE RECOVER MANAGED STANDBY DATABASE.... command manually.
Larry

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Kind regards
Uwe
http://uhesse.wordpress.com

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Copyright (c) 1982, 2010, Oracle. All rights reserved.
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Thanks and regards.
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I hope this is the right area to publish my problem...
I can't find something like codetags for the system output - so I'm sorry for the bad looking
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Apply Lag:       (unknown)
Real Time Query: OFF
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    MaxFailure                      = '0'
    MaxConnections                  = '1'
    ReopenSecs                      = '300'
    NetTimeout                      = '30'
    RedoCompression                 = 'DISABLE'
    LogShipping                     = 'ON'
    PreferredApplyInstance          = ''
    ApplyInstanceTimeout            = '0'
    ApplyParallel                   = 'AUTO'
    StandbyFileManagement           = 'AUTO'
    ArchiveLagTarget                = '900'
    LogArchiveMaxProcesses          = '4'
    LogArchiveMinSucceedDest        = '1'
    DbFileNameConvert               = ''
    LogFileNameConvert              = ''
    FastStartFailoverTarget         = ''
    InconsistentProperties          = '(monitor)'
    InconsistentLogXptProps         = '(monitor)'
    SendQEntries                    = '(monitor)'
    LogXptStatus                    = '(monitor)'
    RecvQEntries                    = '(monitor)'
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    AlternateLocation               = ''
    LogArchiveTrace                 = '0'
    LogArchiveFormat                = '%t_%s_%r.arc'
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Role:            PRIMARY
Intended State: TRANSPORT-ON
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    DGConnectIdentifier             = 'prim'
    ObserverConnectIdentifier       = ''
    LogXptMode                      = 'ASYNC'
    DelayMins                       = '0'
    Binding                         = 'OPTIONAL'
    MaxFailure                      = '0'
    MaxConnections                  = '1'
    ReopenSecs                      = '300'
    NetTimeout                      = '30'
    RedoCompression                 = 'DISABLE'
    LogShipping                     = 'ON'
    PreferredApplyInstance          = ''
    ApplyInstanceTimeout            = '0'
    ApplyParallel                   = 'AUTO'
    StandbyFileManagement           = 'AUTO'
    ArchiveLagTarget                = '0'
    LogArchiveMaxProcesses          = '4'
    LogArchiveMinSucceedDest        = '1'
    DbFileNameConvert               = ''
    LogFileNameConvert              = ''
    FastStartFailoverTarget         = ''
    InconsistentProperties          = '(monitor)'
    InconsistentLogXptProps         = '(monitor)'
    SendQEntries                    = '(monitor)'
    LogXptStatus                    = '(monitor)'
    RecvQEntries                    = '(monitor)'
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SUCCESS
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Database - dbuc4stby
Role:            PRIMARY
Intended State: TRANSPORT-ON
Instance(s):
    dbuc4
    dbuc4stby
Properties:
    DGConnectIdentifier             = 'dbuc4stby'
    ObserverConnectIdentifier       = ''
    LogXptMode                      = 'ASYNC'
    DelayMins                       = '0'
    Binding                         = 'OPTIONAL'
    MaxFailure                      = '0'
    MaxConnections                  = '1'
    ReopenSecs                      = '300'
    NetTimeout                      = '30'
    RedoCompression                 = 'DISABLE'
    LogShipping                     = 'ON'
    PreferredApplyInstance          = ''
    ApplyInstanceTimeout            = '0'
    ApplyParallel                   = 'AUTO'
    StandbyFileManagement           = 'AUTO'
    ArchiveLagTarget                = '0'
    LogArchiveMaxProcesses          = '4'
    LogArchiveMinSucceedDest        = '1'
    DbFileNameConvert               = ''
    LogFileNameConvert              = ''
    FastStartFailoverTarget         = ''
    InconsistentProperties          = '(monitor)'
    InconsistentLogXptProps         = '(monitor)'
    SendQEntries                    = '(monitor)'
    LogXptStatus                    = '(monitor)'
    RecvQEntries                    = '(monitor)'
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SUCCESS
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SUCCESS
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ORA-16795: Die Standby-Datenbank muss neu erstellt werden (The standby database needs to be recreated)
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Thx fuechsin

Hi,
first of all: big thanks for your answer!
I think, this was a bad idea, too. But there was not enough space, so we decided to turn it off without thinking of consequences. :/
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>> Starting Data Guard Broker bootstrap <<
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Best regards,
fuechsin

Trying to reinstall iPhoto 6 after multiple crashes

After numerous crashes of iPhoto 6 (and reporting crashes to Apple via the pop-up box until my fingers fell off), I finally decided to back-up all my photos, delete and reinstall iPhoto 6. To do so, I did a spotlight search for anything with iPhoto in the name and then deleted all items I could find. I finally came down to a Library6.iphoto file, but when clicking on the i button in spotlight, only a dashed line ghost rectangle appeared. It had no location name, the date created and modified was Dec. 1903 and other useless information. How can I get rid of this program, that is says is still present, but I can't find it anywhere to delete it. I dont' want to re-install iPhoto 6, with this ghost running around.

ExpressMan:
Welcome to the Apple Discussions. I've gotten those ghosts files from time to time and they haven't given me troubles. Here's what I recommend:
1 - launch Disk Utility and repair disk permissions and verify the disk.
2 - be sure all files with iPhoto in the file name are out of the HD/Library/Redeipts folder if you haven't already done so.
3 - install iPhoto 6 and then run the following updaters in this order:
a - 6.0.4
b- 6.0.5
c - 6.0.6
I suggest you downloade them from the Download page (see the Download button at the top of this page) and run them from your HD instead of Software Update.
4- run Disk Utility again and repair disk permissions.
Also be sure you're running Quicktime 7.1.5.
Restarting your computer may get rid of that ghost file. But I wouldn't worry about it.
Do you Twango?
TIP: For insurance against the iPhoto database corruption that many users have experienced I recommend making a backup copy of the Library6.iPhoto database file and keep it current. If problems crop up where iPhoto suddenly can't see any photos or thinks there are no photos in the library, replacing the working Library6.iPhoto file with the backup will often get the library back. By keeping it current I mean backup after each import and/or any serious editing or work on books, slideshows, calendars, cards, etc. That insures that if a problem pops up and you do need to replace the database file, you'll retain all those efforts. It doesn't take long to make the backup and it's good insurance.
I've written an Automator workflow application (requires Tiger), iPhoto dB File Backup, that will copy the selected Library6.iPhoto file from your iPhoto Library folder to the Pictures folder, replacing any previous version of it. You can download it at Toad's Cellar. Be sure to read the Read Me pdf file.
TIP: For insurance against the iPhoto database corruption that many users have experienced I recommend making a backup copy of the Library6.iPhoto database file and keep it current. If problems crop up where iPhoto suddenly can't see any photos or thinks there are no photos in the library, replacing the working Library6.iPhoto file with the backup will often get the library back. By keeping it current I mean backup after each import and/or any serious editing or work on books, slideshows, calendars, cards, etc. That insures that if a problem pops up and you do need to replace the database file, you'll retain all those efforts. It doesn't take long to make the backup and it's good insurance.
I've written an Automator workflow application (requires Tiger), iPhoto dB File Backup, that will copy the selected Library6.iPhoto file from your iPhoto Library folder to the Pictures folder, replacing any previous version of it. You can download it at Toad's Cellar. Be sure to read the Read Me pdf file.
TIP: For insurance against the iPhoto database corruption that many users have experienced I recommend making a backup copy of the Library6.iPhoto database file and keep it current. If problems crop up where iPhoto suddenly can't see any photos or thinks there are no photos in the library, replacing the working Library6.iPhoto file with the backup will often get the library back. By keeping it current I mean backup after each import and/or any serious editing or work on books, slideshows, calendars, cards, etc. That insures that if a problem pops up and you do need to replace the database file, you'll retain all those efforts. It doesn't take long to make the backup and it's good insurance.
I've written an Automator workflow application (requires Tiger), iPhoto dB File Backup, that will copy the selected Library6.iPhoto file from your iPhoto Library folder to the Pictures folder, replacing any previous version of it. You can download it at Toad's Cellar. Be sure to read the Read Me pdf file.
TIP: For insurance against the iPhoto database corruption that many users have experienced I recommend making a backup copy of the Library6.iPhoto database file and keep it current. If problems crop up where iPhoto suddenly can't see any photos or thinks there are no photos in the library, replacing the working Library6.iPhoto file with the backup will often get the library back. By keeping it current I mean backup after each import and/or any serious editing or work on books, slideshows, calendars, cards, etc. That insures that if a problem pops up and you do need to replace the database file, you'll retain all those efforts. It doesn't take long to make the backup and it's good insurance.
I've written an Automator workflow application (requires Tiger), iPhoto dB File Backup, that will copy the selected Library6.iPhoto file from your iPhoto Library folder to the Pictures folder, replacing any previous version of it. You can download it at Toad's Cellar. Be sure to read the Read Me pdf file.

Need to recover DB after OS crash( Urgent pls hlp)

Hi,
I require to recover an oracle database on NT server .The NT server has crashed but I was able to recover all the data but now I require to get the oracle database. I have all the ctl & other files but no backup .
Please tell me how i can get the database back
I am not a DBA so plese sent your input in simple language

hi,
Thank you Raju.
I regret to inform u that yr reply came in a bit late & I had already solved my problem, I am posting my experience for the benifit of others.
I tried out a number of things today.
One thing clicked
I Installed the oracle server on another machine with the same name.Keep in mind that the drive name should be the same as the previous installation & so must be the DB name & the path as that of the previous installation.
After doing so shut down the oracle instance.
Replace all the control, log and dbf files.
Try to restart the oracle Instance if there is a problem, it might give u a password mis-match error.If u using another login to boot up .
To corect this run the orapwd.exe with the new password & the replace the PWD<databasename>.ora file
try to restart the databse after taking a shutdown .
This procedure works well.
null

Error with 11G restart of database on Windows XP

Hi
I make the installation of the Oracle 11g on windows XP with the dhcp, and then when i restart the database and try to get connection to the Enterprise Manager page with the http://localhost:1158/em after changing the host in the tnsnames.ora and listener.ora from dhcp ip address to localhost, still i am not able to connect to the EM. when i check the status of the EM from the command line i get the error like
C:\Documents and Settings\chandur>emctl status dbconsole
OC4J Configuration issue. D:\Oracle\product\11.1.0\db_1/oc4j/j2ee/OC4J_DBConsole_42.130.245.46_ORCL
not found.
can some one help how to get rid of the dhcp problmes and make the oracle EM work

Hi
Thanks I will try to figure it out and get it resolved. but i am able to connect from the command prompt to the database, like sqlplus sys as sysdba
and when i do the same from the sql developer with the TNS selected there it don't allow me to connect is this also related to the smae so if i fix the dhcp from the guide provided will help with sql developer as well.

Nodemanager does not restart managed server after Linux OS reboot

Running Linux 2.6.18, Sun JDK 1.6.0_14, and WebLogic 10.3, we have a correctly functioning nodemanager watching a single managed server. If I kill -9 the managed server, the nodemanager fires up a new one immediately. If, however, we reboot the box, the nodemanager will start cleanly and will not start the managed server. It appears to believe the node should remain down and reports its status as UNKNOWN.
I've seen where this is a known problem on Windows boxes, easily gotten around by supplying the -Xrs parameter to the startup parms for the managed server. (Section 5 of the general nodemanager config doc.) I don't see, however, where there's an equally clean solution for Linux.
Things I've tried:
+ When I set the server to DEBUG, it shows zero sign of receiving a shutdown signal. It's dumping loads of cluster messages, etc, into the log and then suddenly the log just ends so it's dying via kill -9. If the nodemanager is still running at that time, it might try to restart the managed server and log it somewhere as permanently failed.
+ The nodemanager only logs to INFO level, and logs no evidence of deciding to leave the node down. (DEBUG is an invalid LogLevel, so that's all I've got.)
+ A restart signal sent from our AdminServer (on another Linux box) successfully starts the managed node through the nodemanager. Nothing unusual occurs or is logged.
Things I'm curious about:
+ Is there some way to see in what state the nodemanager believes the managed server to be?
+ Is there some value in some doc somewhere that might say the server should not be restarted?
+ Is there not a log of NodeManager client actions? I don't see anything in domain.log or AdminServer.log except when the NM is down.
Thanks,
Kevin
ListenPort=5556
ListenBacklog=50
SecureListener=true
AuthenticationEnabled=true
NativeVersionEnabled=false
CrashRecoveryEnabled=true
JavaHome=/appl/java/jre
StartScriptEnabled=false
StopScriptEnabled=false
StartScriptName=startWebLogic.sh
StopScriptName=
LogFile=/appl/bea/wlserver_10.3/common/nodemanager/logs/nodemanager.log
LogLevel=INFO
LogLimit=0
LogCount=1

can you set NativeVersionEnabled to true. We have faced this in windows which was fixed by changing this property. Some notes from that issue:
Faced this interesting issue in Windows 2008 environment. Managed Servers were started by node manager and it was expected that on a system restart after a crash, the node manager will restore the state of the managed servers to the state it was before the crash. Node Manger was configured to run as a windows service. Hence it started after the server restart. But the individual managed servers were not getting started. Interestingly, for the managed servers started by the node manager there were no <Managed_Server_Name>.lck file in the <Server>/data/NodeManger folder.
To fix this always set the following properties in the nodemanager.properties on the node maager home directory.
CrashRecoveryEnabled=true /* This by default is set to false. This needs to be turned for auto restart after crash to work */
NativeVersionEnabled=true /* This is by default set to true and it should be set as such. If you turn this off on platforms for which weblogic provide native JNI libraries ( e.g. as in Windows 2008) then this wont create the .lck file and hence node manager wont restart the managed server after the crash.
Note: As per official documentation .lck files are required for weblogic node managers to do auto restart after system crash
From Official documentation:
After the system is restarted, Node Manager checks each managed domain specified in the nodemanager.domains file to determine if there are any server instances that were not cleanly shutdown. This is determined by the presence of any lock files which are created by Node Manager when a WebLogic Server process is created. This lock file contains the process identifier for WebLogic Server startup script. If the lock file exists, but the process ID is not running, Node Manager will attempt to automatically restart the server.
If the process is running, Node Manager performs an additional check to access the management servlet running in the process to verify that the process corresponding to the process ID is a WebLogic Server instance.
After the system is restarted, Node Manager checks each managed domain specified in the nodemanager.domains file to determine if there are any server instances that were not cleanly shutdown. This is determined by the presence of any lock files which are created by Node Manager when a WebLogic Server process is created. This lock file contains the process identifier for WebLogic Server startup script. If the lock file exists, but the process ID is not running, Node Manager will attempt to automatically restart the server.If the process is running, Node Manager performs an additional check to access the management servlet running in the process to verify that the process corresponding to the process ID is a WebLogic Server instance.
*/

Restarting Stanby database after host crash

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