What to do when database hang

Hi all,
May I know what to do when database hangs after shutdown immediate command perform? Can I use kill process command to stop Oracle process?

Hello,
see documentation for details of immediate-clause:
http://download.oracle.com/docs/cd/B19306_01/server.102/b14231/start.htm#sthref589
You can do an shutdown abort instead, but then sql is terminated. You can read details here: http://download.oracle.com/docs/cd/B19306_01/server.102/b14231/start.htm#sthref595
Greets,
Hannibal

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What do?. when database not open

my server oem is cash and i don't backup control file.
Now my database startup mount only. it does't startup open.
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Hi
If you can mount the database it means that you have a control file.
What did you lose in the crash?
What errors do you get when you try to open the database?
How did you restore?
Are you running archivelog mode?

Runinstaller (oracle database) hangs the zone and global zone

We have recently installed a Solaris 10 (Oracle Solaris 10 8/11 s10s_u10wos_17b SPARC) on the SPARC T4 and create two zones out of it.
We tried to install oracle database on the zone by running the installer (tried xclock and it works very well so display is not a problem).
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Starting Oracle Universal Installer...
Checking Temp space: must be greater than 180 MB.   Actual 16058 MB    Passed
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[when system hang]
any ideas?

Hi,
Please can you confirm, is it a standalone DB that you are trying to install..
If yes, What is the DB version?
The error message is simply unable to obtain the xfont. This link might help you:
http://answers.yahoo.com/question/index?qid=1006042535728
Please also refer note:
Error during Installation of Weblogic Server: Warning: Cannot Convert String "-Monotype-Arial-Regular-R-Normal--*-140-*-*-P-*-Iso8859-1" To Type FontStruct [ID 1361691.1]
Regards,

Shutting down database hangs

Dear Gurus,
I m facing a database hang issue while performing the scheduled offline backup.I m able to take the online backup.When the backup starts , the database starts to shutdown.When checked in the log of backup it shows in tail as shutting down database.When checked for user trace , it shows message as "Attempting to kill pid xxxxxxx" and keeps on retrying for n no. of times.Then I have to manually kill the backup and restart the application.Then again try for an offline backup.This time it happens smoothly.This activity we did for couple of weeks .But now from past 3 days even after restarting the backup, it goes to hang mode.In other words unable to perform the backup activity.
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This issue is h
Please suggest me at the earliest.As need to resolve this at the earliest.
Bye.
Amit

Hi,
No "archive process shutdown avoided" message is there in the log file.
In usertrace i get messages as mentioned below.
bslcrmprddb #more bcp_ora_1257502.trc
Dump file /oracle/BCP/saptrace/usertrace/bcp_ora_1257502.trc
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, Data Mining and Real Application Testing options
ORACLE_HOME = /oracle/BCP/102_64
System name:    AIX
Node name:      bslcrmprddb
Release:        3
Version:        5
Machine:        00C6C4024C00
Instance name: BCP
Redo thread mounted by this instance: 1
Oracle process number: 0
Unix process pid: 1257502, image: oracle@bslcrmprddb
2009-06-05 08:01:36.875
Oracle Instance Startup operation failed. Another process may be attempting to startup or shutdown
Failed to acquire instance startup/shutdown serialization primitive
bslcrmprddb #more bcp_ora_2453676.trc
Dump file /oracle/BCP/saptrace/usertrace/bcp_ora_2453676.trc
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, Data Mining and Real Application Testing options
ORACLE_HOME = /oracle/BCP/102_64
System name:    AIX
Node name:      bslcrmprddb
Release:        3
Version:        5
Machine:        00C6C4024C00
Instance name: BCP
Redo thread mounted by this instance: 0 <none>
Oracle process number: 0
Unix process pid: 2453676, image: oracle@bslcrmprddb
2009-06-06 07:04:22.494
Dynamic strand is set to TRUE
Running with 2 shared and 88 private strand(s). Zero-copy redo is FALSE
bslcrmprddb #more bcp_ora_1495266.trc
Dump file /oracle/BCP/saptrace/usertrace/bcp_ora_1495266.trc
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, Data Mining and Real Application Testing options
ORACLE_HOME = /oracle/BCP/102_64
System name:    AIX
Node name:      bslcrmprddb
Release:        3
Version:        5
Machine:        00C6C4024C00
Instance name: BCP
Redo thread mounted by this instance: 1
Oracle process number: 213
Unix process pid: 1495266, image: oracle@bslcrmprddb (TNS V1-V3)
ACTION NAME:() 2009-06-06 03:00:22.223
MODULE NAME:(sqlplus@bslcrmprddb (TNS V1-V3)) 2009-06-06 03:00:22.223
SERVICE NAME:(SYS$USERS) 2009-06-06 03:00:22.223
SESSION ID:(517.13229) 2009-06-06 03:00:22.223
ksukia: Starting kill, force = 0
ksukia: killed 274 out of 274 processes.
ksukia: Starting kill, force = 0
ksukia: killed 0 out of 2 processes.
ksukia: Starting kill, force = 0
ksukia: killed 0 out of 1 processes.
ksukia: Starting kill, force = 0
ksukia: killed 0 out of 1 processes.
ksukia: Starting kill, force = 0
Please suggest.
Regards,
Amit

Oracle 10g Database Hanging twice a day

My database server has 10g with MS 2003 server as OS.
Twice a day the database hangs and does disconnects all the users from local and remote locations.
Current SYSTEM tablespace has a size of 470 MB and is 98.86 in use, when I try to add another datafile as 'SYSTEM02.DBF' in the same path where other system data files are, I kept this operation running during weekends but datafile was not added.
Has it anything to do with the MS 2003 server no. of users.
Any other suggestions for SYSTEM Tablespace to be free.
Please reply.
Thanks
Ajaz Ahmed

Hi friends / sameer,
Sorry for the delay. Here is the attached alert.log file Since the data from foxpro was loaded into oracle on to oracle 10 g from 7th may the problem of database hanging started from the next day. I joined the organization on 22nd july.
Current SYSTEM tablespace has a size of 470 MB and is 98.86 in use, when I try to add another datafile as 'SYSTEM02.DBF' in the same path where other system data file is, it does not add. I kept this operation running during weekends but datafile was not added.
Has it anything to do with the MS 2003 server no. of users.
Any other suggestions for SYSTEM Tablespace to be free.
If you can get me your mail id then I can send the
attachment of alert.log file as [email protected] bounces back.
Thanks
Ajaz Ahmed

Database Hanging

Hi,
I have Oracle database 10g my database is hanging and i want to check what locks occur on which table how can i work on this database hanging process.Kindly help...because i am new for this i need good procedure to face this problem..

If db hangs there could be a lot of possibilities..
eg. no more space for archive log or datafiles
Locks on table are different. You can look on alertlog and start investigating..

Oracle 8i database hangs for the same amount during JDBC calls.

Hi all,
I have a Oracle 8i database on solaris. The database hangs for exactly 61 seconds for a random jdbc call from my Java application, i mean there is no particular pattern or a JDBC call for which the database hangs. If i choose to wait for 61 seconds it returns the results from the database but if i try to access the database with another query(SQL Plus) the first query starts executing immediately. Is that a database configuration problem or some thing else.
And i also get some exceptions occasionally( Maximum Open Cursors exception). Are these two related?
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I have uninstalled Oracle 8i.
Removed all the services from Windows services by deleting corresponding registry entries and deleted the Oracle folder.
I have reinstalled Oracle 8i, this time i changed the name of global database to oracledb.
I channged the tnsnames.ora file from DevSuite appropriately as:
# tnsnames.ora Network Configuration File: C:\DevSuiteHome_1\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = mscserver)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = ORACLEDB)
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What's lost when you reconfigure Enterprise Manager?

Hi all,
Going straight into the questions:
What's lost when you reconfigure a EM? And,
What's stored in the EM Repository?
Configuration: Windows 2003 Server Enterprise, Oracle 10g release 2
All of the EM consoles stopped working after we changed the host name on a Windows Server. The EMC services refuse to start.
It seems that using emca to reconfigure the EMs fixes the problem. But the other problem is that EMCA mentioned that all configuration would be lost.
I tried searching around the forum, Google and the official documentation but couldn't find much details.
It would be much appreciated if you could help me out a bit.
Thanks,
Benjamin

EM repository consists set of tables in a database containing state information for the managed environment and information about the management packs. It is used as a back-end store by the Oracle Management Servers, providing distributed control between clients and managed nodes.

Database Hang Analysis

DB:11.2.0.3
OS :Linux 5
My database is in hung state now. I did the below steps
sqlplus -prelim '/as sysdba'
SQL*Plus: Release 11.2.0.3.0 Production on Thu Oct 24 08:18:17 2013
Copyright (c) 1982, 2011, Oracle. All rights reserved.
SQL> oradebug setmypid
Statement processed.
SQL> oradebug unlimit
Statement processed.
SQL> oradebug hanganalyze 3
Statement processed.
SQL> oradebug hanganalyze 3
Statement processed.
SQL> oradebug tracefile_name
/oemdwlk1/oracle/diag/rdbms/eioemd1/eioemd1/trace/eioemd1_ora_14132.trc
SQL> exit
Getting the below output in trace file
Processing Oradebug command 'hanganalyze 3'
===============================================================================
HANG ANALYSIS:
ERROR: Can not perform hang analysis dump without a process
state object and a session state object.
( process=(nil), sess=(nil) )
As per oracle doc How to Collect Diagnostics for Database Hanging Issues (Doc ID 452358.1).
Note: From 11.2.0.2 onwards, hanganalyze will not produce output under a sqlplus "preliminary connection" since it requires a process state object and a session state object. If a hanganalyze is attempted, the trace will output:
HANG ANALYSIS:
ERROR: Can not perform hang analysis dump without a process state object and a session state object.
( process=(nil), sess=(nil) )
Is something i am missing or there is some different steps.
===============================================================================

Level 3 --> will collect HANGANALYZE OUTPUT + DUMPS ONLY THE PROCESSES THOUGH TO BE IN HANG.
This many not be a case of process hang. So check with LEVEL 10 .
Still if you are getting the same error than , you need to contact oracle support.
Thanks,
<mod. action: blog ref. removed, please link to one of your blog entries when it's appropriate>
Message was edited by: Nicolas.Gasparotto

What exactly happens when datafile is put in backup mode ?

Dear Friend,
i want to know what exactly happens when a datafile is put in backup mode ?
that is what happens between Begin Backup ........................... end backup
with regards.

When u start hot backup via 'alter tablespace begin backup', the tablespace headers are marked as such. The dirty data buffers that belong to the database files are written out to the files and the datafiles are check pointed. The headers are updated with SCN @ the time the backup commences. It is the data file headers that were not updated until the 'alter tablespace end backup' is issued.
The database files still continue to be read and updated. Recovery will commence from the scn written at the commencement of the backup and it is the changes written to the redo\archive logs during the backup that are rolled forward during recovery
Cheers,
Bin

What to do when updatemanager won't install ....

Forum Moderator et al:
I periodically see instances where updatemanager will hang when it is starting the "Install phase".
In other words, after I check for patches, select the patches to be installed, and it has downloaded the patches. It will often simply sit there at the final "Analyzing system" or at the "Installing updates" section .... but not actual be installing anything.
When it works properly, prstat shows that it is running a series of "pkginstall" and "pkgadd" commands ... but when it hangs, these are not running.
While I trust that this means that something it needs is no longer running, I can't seem to figure out what it is missing and, more often than not, my only way to recover is to reboot. In fact, when I try to hit "Cancel", it seems to sit forever at the "Canceling ..." window but never actually closes down updatemanager. So, I do a "ps -ef | grep update" and kill the processes that it lists (/usr/bin/updatemanager, the java process running swupdate.jar, and two "smpatch update" processes and then I also "rm /var/sadm/spool/sunucLog/job_history.log.lck".). But that normally doesn't fix anything so I have to reboot to "restore" updatemanager functionality. That's not a very pleasant thing to have to do on a production machine and always makes me cringe as being the Windows way of solving problems.
Is there a list of things like processes that need to be running, lock files that either should or should not be present, etc. Ideally, it would be nice to be able to run a little script named something like "um_check" that could check for all of these things.
Note: I'm confident that I've got all applicable patches installed and I have three identical machines ... periodically, however, one of them will show this "updatemanager hang" behavior and which machine of the three may hang never seems predictable.
What should I be looking for? /var/adm/messages rarely shows anything. Is there another log file that I can be checking?
Thanks,
John

Forum Moderator:
I just ran an experiment that, I think, provides some additional information. This morning, one of my machines thinks that it needs to install the following 4 patches (this is a Solaris 10u4 x86 system). They are:
127112-11 (kernel .... requiring immediate reboot)
119758-12 (Samba .... also requiring immediate reboot)
124873-04 (Sun Studio 12 stuff ...)
128345-01 (time.h)
If I select all 4 of these, it appears to download everything and then hangs at the "Installing ..." step. When I check the log that I generated with the debug flag, it appears to have determined that the order of the patches to be applied as: 128345-01, 119758-12, 124873-04, and 127112-11. And, as shown by the last few lines of the updatemanager debug file, it tried to start installing 128345-01 and just sat there.
Status: STATUS DOWNLOAD_PATCHDB BEGIN
Status: STATUS DOWNLOAD_DETECTORS BEGIN
Status: STATUS DOWNLOAD_DETECTORS END DOWNLOAD_DETECTORS.0 "Download of {0} was
successful." "detectors"
Status: STATUS DOWNLOAD_PATCHDB END DOWNLOAD_PATCHDB.0 "Download of {0} was successful." "current"
Status: STATUS ANALYZE BEGIN
Status: STATUS PATCH_SEQUENCER BEGIN 128345-01
Status: STATUS PATCH_SEQUENCER END 128345-01 PATCH_SEQUENCER.0 "Update {0} passed sequencer check." "128345-01"
Status: STATUS PATCH_SEQUENCER BEGIN 119758-12
Status: STATUS PATCH_SEQUENCER END 119758-12 PATCH_SEQUENCER.0 "Update {0} passed sequencer check." "119758-12"
Status: STATUS PATCH_SEQUENCER BEGIN 124873-04
Status: STATUS PATCH_SEQUENCER END 124873-04 PATCH_SEQUENCER.0 "Update {0} passed sequencer check." "124873-04"
Status: STATUS PATCH_SEQUENCER BEGIN 127112-11
Status: STATUS PATCH_SEQUENCER END 127112-11 PATCH_SEQUENCER.0 "Update {0} passed sequencer check." "127112-11"
Status: STATUS ANALYZE END ANALYZE.0 "Request to analyze the system was successful
ul."
Status: STATUS INSTALL BEGIN 128345-01
So, I killed the various update processes and did a 'rm /var/sadm/spool/sunucLog/job_history.log.lck
and started up updatemanger a second time with the debug flag.
This time I only selected on patch to be applied at a time .... but with no other changes.
Starting with 127112-11 (the Kernel) .... it tried to install it, realized that it was a "reboot immediate" and came back and reported that it would be installed at the next reboot and asked if I wanted to reboot now. I answered "No" and continued.
The next patch in the list was 119758-12 (Samba) and behaved the same way ... an immediate reboot patch that can only be installed at the next reboot and asked if I wanted to reboot now. I answered "No" and continued.
The next patch was 124873-04 (Some of the Sun Studio 12 debug tools, I think). Interestingly, this installed just fine. This seems to indicate that there is nothing intrinsically broken with my updatemanager setup and would also seem to indicate that the underling call to smpatch also succeeded.
Finally, I selected 128345-01 (time.h) from the list. As when I was trying to install all 4 patches simultaneously, this hung and the final line of the updatemanager debug log was:
Status: STATUS INSTALL BEGIN 128345-01
where it tried to start installing this patch ..... but nothing appeared to happen.
So, this would seem to imply that there are certain patches that cause updatemanager to hang. While I don't have a clue as to what is different about 128345-01 (that hung up) as compared to 124873-04 that installed successfully during the same updatemanager session .... it sure seems that there is something that is patch-specific, don't you think?
Now, I can anticipate your next question: "Does 128345-01 install properly when run explicitly from the command line as: 'smpatch add -i 128345-01'?
The answer is "Yes", here is the result of that command:
root@flare # smpatch add -i 128345-01
add patch 128345-01
Transition old-style patching.
Patch 128345-01 has been successfully installed.
So, while I'm still befuddled by this, here is what I think I have learned:
1. There is nothing intrinsically wrong with my updatemanager setup.
2. Certain patches seem to cause updatemanager to hang after it tries to install them and that patch will seem to hang where it is installed as a series of patches selected for install or if it is the only patch selected for installation in updatemanager.
3. That same patch, however, can be successfully be installed by manually executing 'smpatch add -i <patch-id>'.
I hope that provides some useful information that will help to unravel this.
Thanks,
John

Hi,can anyone guide me on what is client side database & grid database.....

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I'm not trying to be funny or mean, but, in my experience, if you don't know what a product/tool/component is, then you should say so. If you give the impression that you do know about a technology in your interview and you are hired based upon that premise, you might find yourself struggling mightily when your employer asks you to 'implement DataGuard by the end of the week'...
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Hi,
I am getting some errors when trying to run my java code that will try to open a few cursors and join them to fetch the data.
ath .:/usr/src/db-4.7.25.NC/java/src:/usr/local/BerkeleyDB.4.7/lib/db.jar bdbtest
MyDbs: Callback function may be NULL only when database handles are read-only
Error on inventory secondary cursor:
java.lang.IllegalArgumentException: Invalid argument: Callback function may be NULL only when database handles are read-only
What does that error mean? How can I resolve it? I am following the sample program and I can't find anything related.
Here is my code.
import com.sleepycat.db.DatabaseException;
import com.sleepycat.db.Database;
import com.sleepycat.db.SecondaryDatabase;
import com.sleepycat.db.DatabaseConfig;
import com.sleepycat.db.DatabaseType;
import java.io.FileNotFoundException;
import com.sleepycat.db.DatabaseEntry;
import com.sleepycat.db.SecondaryCursor;
import com.sleepycat.db.Cursor;
import com.sleepycat.db.DatabaseException;
import com.sleepycat.db.LockMode;
import com.sleepycat.db.OperationStatus;
import com.sleepycat.db.SecondaryCursor;
import com.sleepycat.db.SecondaryConfig;
import com.sleepycat.bind.EntryBinding;
import com.sleepycat.bind.serial.SerialBinding;
import com.sleepycat.bind.tuple.TupleBinding;
import com.sleepycat.db.Cursor;
import com.sleepycat.db.DatabaseEntry;
import com.sleepycat.db.DatabaseException;
import com.sleepycat.db.LockMode;
import com.sleepycat.db.OperationStatus;
import com.sleepycat.db.SecondaryCursor;
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     Cursor cursor = null;
try {
// Open the database. Create it if it does not already exist.
DatabaseConfig dbConfig = new DatabaseConfig();
     dbConfig.setErrorStream(System.err);
dbConfig.setErrorPrefix("MyDbs");
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dbConfig.setAllowCreate(true);
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mySecConfig.setErrorPrefix("MyDbs");
     mySecConfig.setType(DatabaseType.BTREE);
mySecConfig.setAllowCreate(true);
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dbConfig);
dbConfig.setAllowCreate(true);
myDatabase = new SecondaryDatabase("/tmp/bdb_ca_sdb.db",
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primDB,
mySecConfig);
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new DatabaseEntry(res.getBytes("UTF-8"));
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DatabaseEntry foundData = new DatabaseEntry();
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secCursor.getSearchKey(searchKey, foundKey,
foundData, LockMode.DEFAULT);
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while (retVal == OperationStatus.SUCCESS) {
String keyString = new String(foundKey.getData(), "UTF-8");
String dataString = new String(foundData.getData(), "UTF-8");
System.out.println("Key | Data : " + keyString + " | " +
dataString + "");
secCursor.getNextDup(searchKey, foundKey,foundData, LockMode.DEFAULT);
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System.err.println("Error on inventory secondary cursor:");
System.err.println(e.toString());
e.printStackTrace();
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System.out.println("All done.");
}

Hi,
The error is because either the primary database or the secondary database is configured as read only and the callback to create the secondary keys is null. A quick glance of the code, it appears as if you did not set up the secondary database correctly. In the Getting Started Guide for JAVA API chap 10, we have detailed information on what needs to be done as well as a code example. Please refer to http://www.oracle.com/technology/documentation/berkeley-db/db/gsg/JAVA/index.html and look for Chap 10.
regards,
Mike Brey, Oracle Berkeley DB

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