UNDO tablespace increase more more .... spaces

I checked my Oracle database. I found undo tablespace increase more more spaces.
from 10G , now 40G
undo_retention = 15 minutes
Please help me
How I tune and monitor for track this problem?

Hello HunterX,
You have not indicated which version of database & on what platform. The Version number & platform is very important...I tell you why. Because i had the same issue with my database and handled successfully.
Please check the BUG No. Note:2660394.8 & also note no. 271119.1.
This explains that Undo tablespace is used and after the expiry of 15 minutes it does not use the EXPIRED extents. It again allocates the NEW extents out of your segment of the tablespace....And leads to continuous growing of UNDO Tablespace...
Do the follwoing i feel would be appropriate...Rest you can decide it better....
1. Create a New UNDO Tablespace may be undo_new of smaller size..
2. Do not keep autoextend ON and put some max size...may be 1 GB. Do not put it unlimited.
3. Stop the DB Instance
4. Change the name of new UNDO Tablespace in INIT.ORA file
5. Restart the DB Instance.....
6. drop the Old Tablespace UNDO & delete the datafile...
If stopping of DB Instance is not possible...(for production server), i hv few command which does the above on-line. But i do not remember them at this time...I will hv to refer my docs. If you feel i can try that for you...otherwise you may follwo above points.
Hope that helps to you. Thanks.
Regards,
Kamesh Rastogi

Similar Messages

How to I eliminate space in my start up file so I can increase more space to add onenote?

how to I eliminate space in my start up file so I can increase more space to add one-note?

Go step by step and test.
1. Start up in Safe Mode.
    http://support.apple.com/kb/PH11212
2. Backup your computer.
3. Empty Trash.
   http://support.apple.com/kb/PH13806
4. Disk space / Time Machine ?/ Local Snapshots
Local backups
   http://support.apple.com/kb/ht4878
5. Delete old iOS Devices Backup.
    iTunes > Preferences > Devices
    Highlight the old Backups , press “Delete Backup” and then “OK”.
    http://support.apple.com/kb/HT4946?viewlocale=en_US&locale=en_US
6. Re-index Macintosh HD.
    This will take a while. Wait until it is finished.
    System Preferences > Spotlight > Privacy
    http://support.apple.com/kb/ht2409
7.Try OmniDiskSweeper. This will show the storage size details of the items.
   https://www.omnigroup.com/more
   Select Macintosh HD and click “Sweep Selected Drive” at the bottom.
   Delete the files you don’t want to keep.
   Be careful. Delete only the files that can be safely deleted. If you are not sure about any file, don’t touch it.
8. Move iTunes, iPhoto and iMovie media folders to an external drive.
    iTunes
    http://support.apple.com/en-us/HT201562
    iPhoto
    http://support.apple.com/kb/PH2506
    iMovie
    http://support.apple.com/kb/ph2289

Drop Undo Tablespace taking more than 1 hr

Hi,
To give you background, I had given an "insert into .. select" command which was inserting 3 millions of rows of rowidth approx 5000 bytes. The window on which it was given, was closed by mistake.
After sometime when I checked the size of undo_tablespace, it was 5.5GB. I decided to create a new one and drop the old undo_tbsp.
I have successfully created new undo tablespace and changed the same in spfile also.
now when i am dropping the old undo tablespace, its taking long time. its almost an hour, but the tablespace has not been dropped yet.
I have given following command
drop tablespace undotbs_01 including contents;
Any idea, why is it taking so much time, and how long should I wait?
If someone can give me any other idea on how can I drop the tablespace, that will be great.
Regards,
Archana.

To give you background, I had given an "insert into .. select" command which was inserting 3 millions of rows of rowidth approx 5000 bytes. The window on which it was given, was closed by mistake.This could be the cause.
I wonder the killed/closed session doesn't hangup with a latch or lock.
Since the old undo tbs had active transaction, it might have to pending offline status. If so, you can drop it.
Jaffar

Undo tablespace growing without reusing space

Hi,
I'm running an Oracle9i database on Solaris. I am using the automatic undo management and I have one undo tablespace. The UNDO_RETENTION value is 900. I have created the undo tablespace this way (clause in create database statement):
UNDO TABLESPACE "UNDOTBS1" DATAFILE '/u04/oracle/oradata/my_dbname/undotbs01.dbf' SIZE 200M REUSE AUTOEXTEND ON NEXT 5120K MAXSIZE UNLIMITED
The undo tablespace datafile is now close to 3G. I have other servers running the same setup, and their undo datafile size is still 200M. There is currently no active transaction in the database. Any idea why this is happening? Is there any tables I can check for clues?
Many thanks,
Gloria

Should Oracle automatically shrink the undo tablespace (datafile) when it is not needed anymore? Say at one point the database really needs 3G of undo tablespace, but afterwards only 10M is needed, would the datafile be 'shrunk' back?
Also, how can I check if the database really needed the 3G of undo tablespace at one point? (I guess it's checking the level of activities in the database, but how do I do that for past data?)
I'm trying to decide whether the undo tablespace really grew due to a need at some point or is it a case of Bug 2660394 (documented in metalink note271119.1). The bug basically says that "An auto extensible undo tablespace MAY grow before reusing expired extents leading to more space use than actually needed".

Undo tablespace increasing

hello
my database version is 11.2.0.1.0
My undo tablespace was around 36 gb and around 4gb was free.
But now the size is decreasing and it is decreasing fast. What should i do. I increased it by another 2gb. How do i monitor it so that i can tune it without resizing it again.
please guide me.
Thanks in advance.

user12045405 wrote:
hello
my database version is 11.2.0.1.0
My undo tablespace was around 36 gb and around 4gb was free.
But now the size is decreasing and it is decreasing fast. What should i do. I increased it by another 2gb. How do i monitor it so that i can tune it without resizing it again.
please guide me.
Thanks in advance.Decreasing or increasing? It's not an issue but a normal thing since 10g onwards. Please see MOS Doc 413732.1 .
HTH
Aman....

ORA-30036: unable to extend segment by 8 in undo tablespace 'UNDO'

Hello,
I have an OWB Mapping (which translates into a MERGE query) that often fails with the above error. I wanted to have more information on UNDO. What uses most UNDO?
Thanks.

Dear mugunthan,
One little, tiny correction that i want to make. I can get what you wanted to say when you said "increase the tablespace". Normally we are not increasing the size of the tablespace, we are increasing the size of the "datafiles" in that tablespace. That is tricky and how words can change everything i know but just for the information :)
I think the OP's undo tablespace size is 100% full and the auto extensible ability is disabled. He needs to either increase the size of the datafile in the undo tablespace slightly more or enable the auto extensible of one more datafiles (if exists) to a particular new and more bigger size.
Regards.
Ogan

Undo tablespace in RAC

hi all,
In RAC environment, if iam having two nodes, why i have to maintain two undotablespaces in shared area? is it not possible to use one undo tablespace for both the instances instead of two undo tablespaces?
thank you

Hello Buddy,
It is not possible use one UNDO tablespace for more than one instance in RAC architecture.
Unless that you implement rollback segs (forget it, totally unrecommended), then the entire database can use only one rollbackseg on shared storage.
You must maintain unless one undo tbs per instance on your cluster database cause consistent reads on local instances.
Best Regards,
Rodrigo Mufalani
http://mufalani.blogspot.com

Extending undo tablespace

Hi everyone!
I used this sql to check the status of my tablespaces.
SELECT /* + RULE */ df.tablespace_name "Tablespace",
       df.bytes / (1024 * 1024) "Size (MB)",
       SUM(fs.bytes) / (1024 * 1024) "Free (MB)",
       Nvl(Round(SUM(fs.bytes) * 100 / df.bytes),1) "% Free",
       Round((df.bytes - SUM(fs.bytes)) * 100 / df.bytes) "% Used"
FROM dba_free_space fs,
       (SELECT tablespace_name,SUM(bytes) bytes
          FROM dba_data_files
         GROUP BY tablespace_name) df
WHERE fs.tablespace_name (+) = df.tablespace_name
GROUP BY df.tablespace_name,df.bytes
UNION ALL
SELECT /* + RULE */ df.tablespace_name tspace,
       fs.bytes / (1024 * 1024),
       SUM(df.bytes_free) / (1024 * 1024),
       Nvl(Round((SUM(fs.bytes) - df.bytes_used) * 100 / fs.bytes), 1),
       Round((SUM(fs.bytes) - df.bytes_free) * 100 / fs.bytes)
FROM dba_temp_files fs,
       (SELECT tablespace_name,bytes_free,bytes_used
          FROM v$temp_space_header
         GROUP BY tablespace_name,bytes_free,bytes_used) df
WHERE fs.tablespace_name (+) = df.tablespace_name
GROUP BY df.tablespace_name,fs.bytes,df.bytes_free,df.bytes_used
ORDER BY 4 DESC;It shows that my undo tablespace has only 3% space left.
I just executed this SQL command but still the output is the same.
SQL> alter database datafile 'c:\ORACLE\DATA\PRODUCTION\DATAFILE\O1_MF_UNDO.DBF' autoextend on maxsize 50M;
Database altered.I mistakenly thought that the file's existing size is less than 50M.
But then realised the unused (3%) is 50M.
How should I increase the file's size now.
Please guide me.
Will the command I issued have a negative impact?
Thanks in advance.
Nith

user645399 wrote:
Hi everyone!
I used this sql to check the status of my tablespaces.
<snip>
It shows that my undo tablespace has only 3% space left.Which is not a problem of itself. Were you seeing an errors due to lack of space in the undo TS? Do you understand how the undo TS uses - and reuses - space?
>
I just executed this SQL command but still the output is the same.
SQL> alter database datafile 'c:\ORACLE\DATA\PRODUCTION\DATAFILE\O1_MF_UNDO.DBF' autoextend on maxsize 50M;
Database altered.
And of course the output is the same. Modifying the autoextend allocation of a file doesn't change the size of anything. It simply allows the file to grow if and when it becomes necessary. And with 3% still available, it is not necessary. And it won't become necessary until some DML causes that 3% to be exhausted.
I mistakenly thought that the file's existing size is less than 50M.
But then realised the unused (3%) is 50M.
How should I increase the file's size now.
Please guide me.
Will the command I issued have a negative impact?
Thanks in advance.
Nith

Undo Tablespace - Huge file growth.

Hi,
My undo tablespace increases in size rapidly. We have to perform huge number of update operations in this database. How can I reduce the size of the undo tablespace on a regular basis?
Regards,
Santhosh

There is known bug in prior 9.2.0.5 releses . Undo tablespace does not use expired extents properly if it can allocate new segment. Upgrade to 9.2.0.5 is regular solution. Workaround is seting undotablespace autoextend off.
ciaos
Srdjan Rasulic

How to increase the Heap space of Jdeveloper for about more than 512 MB?

When starting JDeveloper, the application within JDeveloper is throwing the error message:
"could not reserve enough space for object heap"
and a windows popup with the following error message:
"Unable to create an instance of the Java Virtual Machine Located at path: ..\..\jdk\jre\bin\client\jvm.dll "
To resolve these issues, i know that adding the following in ide.conf , jdev.conf will help.
AddVMOption -XX:MaxPermSize=512M
AddVMOption -Xmx512M
AddVMOption -Xms512M
I have got 10 GB of RAM in my desktop machine and virtual memory of 15 GB (page size). I am not able to increse the heap space of Jdeveloper for about more than 512MB. This is really frustrating..I had to restart my jdevloper after 3 or 4 deployments.....Has anyone tried success in increasing the heap space in jdeveloper for about 2 GB?
Regards
Prasath.C

Yes, i know that -XX:MaxPermSize has nothing to do with Heap Memory. I Just pasted all my configuration settings to know if some thing or the other has caused the issue.... After hearing few people who increased the heap space to more than 512m , i played with those settings again and figured out few things...Mine is Jdeveloper 11.1.1.4, 64 bit Windows 7 environment, 64 bit Java/ JDK.
First, i was deceived by one suggestion in forum that, keeping max and min heap memory to same size always will yield in good performance...From that time on wards, i was always increasing both and was never able to move more than 512m..But this time, i kept the min memory as constand and kept on changing the max memory ..
Jdev.conf
AddVMOption -XX:MaxPermSize=512M
AddVMOption -Xmx972M (I was never able to increase more than this size, though i have around 10GB RAM, if not Jdev doesnt startup)
AddVMOption -Xms512M
Ide.conf
AddVMOption -Xmx2048M (here i was able to increase)
AddVMOption -Xms512M
But even then, i was not seeing my changed settings at the time of deployment...
starting weblogic with Java version:
java version "1.6.0_21"
Java(TM) SE Runtime Environment (build 1.6.0_21-b51)
Java HotSpot(TM) Client VM (build 17.0-b17, mixed mode)
Starting WLS with line:
C:\Oracle\MIDDLE~1\JDK160~1\bin\java -client -Xms512m -Xmx512m -XX:MaxPermSize=512m -Dweblogic.Name=DefaultServer ..........
Then i changed again into
setDomainEnv.cmd of my default domain
set USER_MEM_ARGS=-Xms512m -Xmx2048m -XX:MaxPermSize=512m
Then i stared my deployment...this time i could see a real boost in deployment...and my page was launched in a fraction of minute..
tarting weblogic with Java version:
java version "1.6.0_21"
Java(TM) SE Runtime Environment (build 1.6.0_21-b51)
Java HotSpot(TM) Client VM (build 17.0-b17, mixed mode)
Starting WLS with line:
C:\Oracle\MIDDLE~1\JDK160~1\bin\java -client -Xms512m -Xmx2048m -XX:MaxPermSize=512m -Dweblogic.Name=DefaultServer ..........
This is my working configuration....Thanks guys for your replies.....
Regards
Prasath.C
Edited by: Prasath C on 05-Aug-2011 04:41

HT201364 You need 4.93 GB of available space. I cannot download OS X Mavericks. I obtain the following answer: Remove items from your startup disk to increase available space. How do I know what items I should remove in order to make more space available?

You need 4.93 GB of available space. I cannot download OS X Mavericks for I obtain the following answer: Remove items from your startup disk to increase available space. How do I know what items I should remove in order to make more space available? Thanks.

You should never, EVER let a conputer hard drive get completely full, EVER!
With Macs and OS X, you shouldn't let the hard drive get below 15 GBs or less of free data space.
If it does, it's time for some hard drive housecleaning.
Follow some of my tips for cleaning out, deleting and archiving data from your Mac's internal hard drive.
Have you emptied your Mac's Trash icon in the Dock?
If you use iPhoto, iPhoto has its own trash that needs to be emptied, also.
If you store images in other locations other than iPhoto, then you will have to weed through these to determine what to archive and what to delete.
If you use Apple Mail app, Apple Mail also has its own trash area that needs to be emptied, too!
Delete any old or no longer needed emails and/or archive to disc, flash drives or external hard drive, older emails you want to save.
Look through your other Mailboxes and other Mail categories to see If there is other mail you can archive and/or delete.
Other things you can do to gain space.
Once you have around 15 GBs regained, do a search, download and install OmniDisk Sweeper.
This app will help you locate files that you can move/archive and/or delete from your system.
STAY AWAY FROM DELETING ANY FILES FROM OS X SYSTEM FOLDER!
Look through your Documents folder and delete any type of old useless type files like "Read Me" type files.
Again, archive to disc, flash drives, ext. hard drives or delete any old documents you no longer use or immediately need.
Look in your Applications folder, if you have applications you haven't used in a long time, if the app doesn't have a dedicated uninstaller, then you can simply drag it into the OS X Trash icon. IF the application has an uninstaller app, then use it to completely delete the app from your Mac.
Download an app called OnyX for your version of OS X.
When you install and launch it, let it do its initial automatic tests, then go to the cleaning and maintenance tabs and run the maintenance tabs that let OnyX clean out all web browser cache files, web browser histories, system cache files, delete old error log files.
Typically, iTunes and iPhoto libraries are the biggest users of HD space.
move these files/data off of your internal drive to the external hard drive and deleted off of the internal hard drive.
If you have any other large folders of personal data or projects, these should be archived or moved, also, to the optical discs, flash drives or external hard drive and then either archived to disc and/or deleted off your internal hard drive.
Good Luck!

HT1461 I created a partition and installed Windows through bootcamp. But I need to increase my partition size due to me needing more space on the windows side. Can I do this with bootcamp, and how do I do it?

I created a partition and installed Windows through bootcamp. But I need to increase my partition size due to me needing more space on the windows side. Can I do this with bootcamp, and how do I do it?

Welcome to Apple Communities
You can delete the partition in Boot Camp Assistant or use Camptune to modify it

As I installed WindowsXP I made a partition of 20Gb. Now I need more space. My Mac says: not possible. Is there yet a possibility to increase my Windows-partition.?

As I installed WindowsXP I made a partition of 20Gb called Bootcamp. Now I need more space. My Mac says: not possible. Is there yet a possibility to increase my Windows-partition.?

You should probably repost in the Boot Camp forum, I think you stand a better chance of getting an answer there.
Roger

OLAP taking 5 time more space than RDBMS?

Hello,
I have been investigating Oracle's OLAP capabilities for about 2 weeks now in an effort to determine whether OLAP would be a feasible solution for my company's data warehousing needs.
I have created an extremely simple analytic workspace that is based on a single relational fact table. The fact table contains both the dimension values (integers) and the measuers (floats). There are a total of about 300,000 dimension values all of which reference measures (the data is perfectly dense).
I created a dimension and a data cube using the Enterprise Manager OLAP interface. Next, I created the analytic workspace using the Analytic Workspace Manager wizard. This AW building step took an extraordinary amount of time considering the simplicity of the data. In fact, I started it on a Friday afternoon, monitored it for about 2 hours, and it still hadn't finished, so I let it run over the weekend (for this reason, I am not sure how much time exactly it took, but it's definitely quite a few hours). Is this normal? Copying the relational table takes 10 seconds, and I find it hard to believe that building an AW with the same data would take so much time.
Finally, coming back on Monday I see that the AW was created successfully. I went into the tablespace map to look at how big the binary blob is. To my great surprise, the AW was taking up about 5 times more extents than my relational table (contrary to what I've read so far about OLAP and its supposedly very storage-efficient data cubes).
I was wondering if anybody could advise me on what I could have done wrong and/or inefficiently? Am I missing something here, or is OLAP really consuming much more space comapred to relational tables?
Thanks!
Dobo Radichkov

Gotcha.
Well, here are a few ideas:
1) There is a bug in the 9i OLAP where dimension loads take WAY too long. I have a dimension with approx 77,000 members. On 9i, it took hours to load. On 10g 10.1.0.3 it loads in under 1 minute. You might want to open a TAR, the bug was something about one of the patch sets not being applied right
2) From a space standpoing, I wouldn't worry about this too much. When the AW wizard creates an "empty" workspace, it already has lots of items in it that support the metadata, etc. Also, there is the concept of "free pages" that get allocated but end up not being used (they are "temp")
To check this out, attach your AW and then fire up the OLAP worksheet. To see "free" pages vs. "used" pages, do the following:
show aw(pages)
show aw(freepages)
One last thing you can do, to see the size of all items in the AW:
attach AWname ro first
limit name to all
sort name d obj(disksize)
rpr w 40 obj(disksize)
This will show the "relative" size of the items, I think in "pages" (to see how big a page is just do a
show aw(pagesize)
Hope this helps!

Error 50410 No More Space in the Buffer

While running my VI I keep getting an error message saying Error 50410 occurred at DAQmx Stop Task. Possible Reasons: There was no more space in the buffer when new data was written. The oldest unread data in the buffer was lost as a result.
Occasionally, the error message comes on frequently, like once a minute, and then sometimes it doesn't come on at all. Usually I just hit continue and the VI continues to run.
Attached is my VI. The top Timed Loop is the main part of the program and inside this loop is when the error message occurs.
Attachments:
Labview Error.doc ‏220 KB
SWIFT_Dive Record3.vi ‏355 KB

I included a stop button to stop all four timed loops. So that problem is fixed.
I tried moving all the DAQmx Timing, DAQmx Start Task, and the DAQmx Stop Task all outside the timed loop. I only left the DAQmx Read insided the timed loop. I got strange behavior like it would run once and then stop. I then tried all possible combinations of inside and outside the timed loop and it would fail to run, or it would run but display NAN for all entries.
As the VI gets more and more complicated it seems like the error message is increasing in frequency.
Ultimately the program has four functions: 1) Display on the front panel values at 0.5 Hz. 2) Perform an appended data save by recording 1 value at 1 Hz or maybe as high as 50 Hz. 3) Perform a buffered acquisition and save the data. 4) Open a file and plot some data.
With the exception of 3) I want the values to continuously display on the Front Panel at the requested 0.5 Hz. I have chosen to use 4 Timed Loops to accomplish this. Is there a better way? How should all the DAQmx VIs be arranged with multiple Timed Loops?
Attached is my latest version.
Attachments:
SWIFT_Dive Record3.vi ‏459 KB

UNDO tablespace increase more more .... spaces

Similar Messages

Maybe you are looking for