Undo tablespace filled with 95%

Similar Questions

• UNDO tablespace fills

  My undo tablespace fills due to no deletions by the jdbc thin client sessions.
  How can I solve this problem permanently?
  
  The undo tablespace size is 5.5 GB
  
  I am facing a complete problem of the undo tablespace
  Here are the sessions that may be causing the problem.
  
  
  Select s.sid,
  s.Serial #.
  s.sql_id,
  s.prev_sql_id,
  s.SCHEMANAME,
  s.OSUSER,
  s.Program,
  USED_UBLK, USED_UREC from v$ session s, v$ transaction t where order of s.taddr = USED_UREC t.addr;
  
  3909 30842 fgcp0qn1bqzx9 XLTDB5 xltwrk5 JDBC Thin Client 504 45257
  5133 53593 fgcp0qn1bqzx9 XLTDB5 xltwrk5 JDBC Thin Client 07 54482
  4525 35108 fgcp0qn1bqzx9 XLTDB10 xltwrk10 JDBC Thin Client 2381 192853
  4428 38484 fgcp0qn1bqzx9 XLTDB1 xltwrk1 JDBC Thin Client 8682 634540
  
  
  For this sql id: fgcp0qn1bqzx9 there are more than 14 executions k / hour.
  
  This is the query for this sql id:
  / * TJAPI_SubTrxTransient_deleteTrb1SubTrxTransient_0 * / REMOVE FROM TRB1_SUB_TRX_TRANSIENT
  
  Some other details
  ++++++++++++
  Oravle version: 11.1.0.7
  OS: SunOS
  ++++++++++++

  Details of the message from the database pl and OS versions. From 10 g 2, cancellation will still appear to be 'full' - which is normal.

  Doc 413732.1 - Full UNDO Tablespace in 10gr 2 MOS

  HTH
  Srini

• Problems with UNDO tablespace

  Hello
  
  DB_VERSION: 10.2.0.4
  OS_VERSION: Windows 2003 server
  
  SQL > show Cancel parameter
  
  VALUE OF TYPE NAME
  ------------------------------------ ----------- ----------------
  UNDO_MANAGEMENT string AUTO
  UNDO_RETENTION integer 900
  undo_tablespace string UNDOTBS1
  
  I know that UNDO tablespace stores the old image of o / old value when the cancellation of the user, the old value is returned to the user throgh UNDO.
  
  
  My UNDO tablespace grows up to 24GO as a developer frequently updates the database in the morning and in the evening.
  
  Basically, it runs a script to offset that includes the INSERT and UPDATE and it is important to extermely.
  
  Whenever the UNDO SCT is full, I create a new one with autoextend on, what happens if I do not autoextend?
  
  1. what would be the impact on queries, if I do like above I always created UNDO tablespace with autoextend 2Go on.
  
  2. What is the best time to drop the old UNDO tablespace?
  
  Thanks in advance.

  Dear user12000301,

  Firstly the undo tablespace is not just there to roll back the transaction. You can use the for recovery undo tablespace (roll back during the recovery of the instance), coherent reading and also for operations of blowback.

  If you have defined a tablespace undo with the goal of conservation of 15 minutes, but have fixed size then;

  http://download.Oracle.com/docs/CD/B19306_01/server.102/b14231/undo.htm

  +"+
  + The following points explain the exact impact of the undo retention UNDO_RETENTION parameter: +.

  + The UNDO_RETENTION parameter is ignored for a fixed size undo tablespace. The database can overwrite the information to cancel remaining when the tablespace space becomes low. +

  + For a tablespace undo with the option enabled AUTOEXTEND, the database tries to honor the minimum retention specified by UNDO_RETENTION period. When space is low, instead of crushing the cancellation information remaining, the self-aggrandizing tablespace' extends. If the MAXSIZE clause is specified for an auto-croissant undo tablespace when the maximum size is reached, the database can begin to replace the cancellation information remaining. +
  +"+

  Be careful with the settings to cancel it. The size, before you add the new data files in the tablespace, undo or autoextending for your pain, you must consider the DML that caused the growing undo tablespace. Necessaryly should generate redo or cancel? If so, know the total amount of undo blocks through the relevant DML.

  If you have created a with 2 GB undo tablespace and mark as CanGrow that the data file can be up to 32 GB. The DBCA you will create a petit_fichier undo tablespace but you can create another like bigfile and pretend the tablespace default undo for the operation.

  The best time to drop an undo tablespace is to wait at least undo_retention period of time has elapsed to make sure you don't need to have the copy of the coherent image transactions are committed. I think that the solution could be achieved as underlined Chinar but be careful on the active rollback segments in your database. You can also dynamically change the default undo tablespace anytime if the database uses the spfile.

  Hope that helps.

  Ogan

• Problem with ASM and OMF Undo tablespace creation

  I'm trying to test installation using Automatic Storage Management and Oracle managed files database. I created ASM instance (+ ASM), disks and start (ASM_GRP01). I then tried the creation of database (ORCL) using this ASM instance. I also need to configure OMF to type no explicit localization files when creating table.
  
  I put in initORCL.ora
  
  UNDO_MANAGEMENT = AUTO
  undo_tablespace = undo_tbsp
  db_create_file_dest = + ASM_GRP01
  db_create_online_log_dest_1 = + ASM_GRP01
  db_recovery_file_dest = + ASM_GRP01
  
  so I ran the SCRIPT of CREATION of DATABASE:
  

  CREATE DATABASE ORCL
    USER SYS IDENTIFIED BY ***USER SYSTEM IDENTIFIED BY ***LOGFILE
      GROUP 1 SIZE 100M,
      GROUP 2 SIZE 100M
    MAXLOGFILES 5
    MAXLOGMEMBERS 5
    MAXLOGHISTORY 100
    MAXINSTANCES 1
    CHARACTER SET US7ASCII
    NATIONAL CHARACTER SET AL16UTF16
    DATAFILE SIZE 400M AUTOEXTEND ON NEXT 25M
    SYSAUX DATAFILE SIZE 400M AUTOEXTEND ON NEXT 15M
    DEFAULT TABLESPACE USERS
    DEFAULT TEMPORARY TABLESPACE TEMP TEMPFILE SIZE 30M
    UNDO TABLESPACE UDNO_TBSP DATAFILE SIZE 200M AUTOEXTEND ON NEXT 20M

  When creating, checking its use on the instance of the ASM diskgroup, it pushes everything by creating the SYSTEM tablespace, but creating UNDO tablespace, I got an error. It's journal of creation of tablespaces to alert.log
  
  SMON: enabling cache recovery
  Sea 8 Oct 08:12:18 2008
  create tablespace datafile SIZE 400 M AUTOEXTEND ON NEXT 25 M SYSTEM
  
  default storage (initial 10K next 10K) EXTENT MANAGEMENT DICTIONARY online
  Sea 8 Oct 08:13:20 2008
  500 MB db_recovery_file_dest_size is 0.00% used. It is a
  user-specified limit on the amount of space that will be used by the present
  for the files related to the recovery of databases and does not reflect the amount of
  space available in the underlying file system or ASM diskgroup.
  Sea 8 Oct 08:13:36 2008
  Completed: create tablespace datafile SIZE 400 M AUTOEXTEND ON NEXT 25 M SYSTEM
  
  default storage (initial 10K next 10K) EXTENT MANAGEMENT DICTIONARY online
  Sea 8 Oct 08:13:36 2008
  create rollback segment tablespace SYSTEM SYSTEM
  storage (initial 50K next 50K)
  Completed: create rollback segment tablespace SYSTEM SYSTEM
  storage (initial 50K next 50K)
  Sea 8 Oct 08:13:44 2008
  CREATE THE UNDO TABLESPACE UDNO_TBSP DATAFILE SIZE 200 M AUTOEXTEND ON NEXT 20 M
  Sea 8 Oct 08:14:31 2008
  ORA-30012 scored at the course: CREATE UNDO TABLESPACE UDNO_TBSP DATAFILE SIZE 200 M AUTOEXTEND ON NEXT 20 M
  ...
  Sea 8 Oct 08:14:31 2008
  Errors in the /opt/oracle/product/10.2.0/rdbms/log/orcl_ora_4887.trc file:
  ORA-00604: an error has occurred at the SQL level 1 recursive
  ORA-30012: undo tablespace "undo_tbsp" there is not, or of the wrong type
  Sea 8 Oct 08:14:31 2008
  Errors in the /opt/oracle/product/10.2.0/rdbms/log/orcl_ora_4887.trc file:
  ORA-01501: CREATE DATABASE failed
  ORA-01519: error while processing the file '? / rdbms/admin/sql.bsq' near line 5792
  ORA-00604: an error has occurred at the SQL level 1 recursive
  ORA-30012: undo tablespace "undo_tbsp" there is not, or of the wrong type
  Error 1519 happened during db open, close the database
  USER: termination litigation because of the error 1519
  Instance of stopped by USER, pid = 4887
  ORA-1092 marked the course: CREATE database ORCL
  
  When I'm putting the database he throws ORA-01079: ORACLE database was not properly created, operation canceled
  Any suggestions will be appreciated.

  Hello..

  There is a spelling error in the parameter specification.

  undo_tablespace = undo_tbsp

  And

  UNDO TABLESPACE UDNO_TBSP DATAFILE SIZE 200 M AUTOEXTEND ON NEXT 20 M

  undo_tbsp in init.ora became UDNO_TBSP in create db statement. Fix and run, you will be able to create the DB.

  Anand

• Undo tablespace use in the CCR

  Hi all
  
  I came across a situation while chatting with my friends on the use of undo in the CCR tablespace that
  "I have a 2 RAC node and is it possible as inst1 can use the inst2 so undo tablespace in the case of undo tablespace to inst1 got filled,
  the research of new segments of cancellation, but not able to allocate new cancellations of the segments in the inst1 undo tablespace. »
  
  Thanks in advance...

  each instance will have its own undo tablespace and data from the before images of the database when generated will be stored with respect to special cases... The instance-specific tablespaces of cancellation cancellation segments are not shared it will settle in the shared common disks@SAN. so for instance or any other type of recovery recovery images before data will be drawn from required undo tablespace... Hope its clear...

  Concerning
  Imran khan

• undo_segments in the undo tablespace

  (1) at least how undo_segments in undo tablespace?

  Is optimal?
  If I increase the size of the undo tablespace, undo_segments counts also have increased!

  Version of DB is 10g

  Hello

   

  The two time oracle maintains exactly 10 segments. (you can see nom_segment begins by _SYSSMU11)

  I'm not clear on what exactly 10 segments. I have undo tablespace of ~ 250 GB with 6676 stored in dba_rollback_segs.

  3) why undo tablespace with the only spaceMo 46,8125 '?

  
  

  (4) I mean why he is stiil 450Mo undo_retention even through time or same validation has occurred?

  Just Oracle - Doc

  Once a transaction is committed, the undo data are more necessary for purposes of recovery rollback or transaction. However, for consistent read purposes, long-running queries may require old undo information to produce older images of data blocks. In addition, the success of several Oracle Flashback features can also depend on the availability of the old cancellation information. For these reasons, it is desirable to keep the old information of cancellation for as long as possible.

  Introduction to the management of the automatic cancellation

  With undo tablespace, you would see extended with the status ACTIVE, EXPIRED, extents still to RUN.

  Active cancellation extended are used by transactions and will be always active, because they are needed for the restoration.

  Extensions has expired are not used by transactions, the data contained in these extended is committed and the time UNDO_RETENTION is passed, so it is not necessary for the coherence of reading and can be reused.

  Not expired extensions are extended no assets but honor UNDO_RETENTION. Transactions belonging to these bodies of cancellation are determined, but the retention time has failed, and it may be necessary for the coherence of reading!

  Paste the query result - below

  ! undo_extent_stat.SQL more

  status of collar for a30

  Select the State,

  round (sum_bytes / (1024 * 1024), 0) like MB,.

  Tour ((sum_bytes / undo_size) * 100, 0) as PERC

  Of

  (

  Select the State, sum (bytes) sum_bytes

  of dba_undo_extents

  Status group

  ),

  (

  Select sum (a.bytes) undo_size

  from dba_tablespaces c

  Join v$ tablespace b on b.name = c.tablespace_name

  Join v$ datafile on a.ts # b.ts = #.

  where c.contents = 'UNDO '.

  and c.status = 'ONLINE '.

  );

  Anand

• Need information on objects not expired undo tablespace

  We are facing a problem in our database for 3-4 days.

  The objects remaining in the database increases day after day. As our ts cancel autoextend enabled, it increases the storage space.

  Currently the following is the scenario.

  SQL > SELECT DISTINCT STATUS, SUM (BYTES) / 1024/1024/1024 GB, COUNT (*)

  2 GROUP OF DBA_UNDO_EXTENTS BY THE STATE;

  STATUS GO COUNT (*)

  --------- ---------- ----------

  61.5925903 10995 REST TO RUN

  3.33197021 356 EXPIRED

  ACTIVE 18.478515625

  Thus, the remaining data 61GB while active is only 478 MB and expired is 3.3 GB.

  My questions are

  1. How can I check the object or sql query or a program that contains the data to cancel "RUN" so. How can I find the names of these objects?

  2. If I turned off autoextend undo ts if this solves the problem and take the new space to cancel from space to cancel remaining?

  Help, please.

  1. the UNEXPIRED is not bound to a query, but the UNDO for UNDO Tablespace retention period. And the Undo retention is a value set automatically when the parameter UNDO_RETENTION is minium.

  The Oracle Documentation says:

  For an undo tablespace with the AUTOEXTEND option is enabled, the database tries to honor the specified minimum retention period by UNDO_RETENTION . When space is low, instead of crushing the cancellation information remaining, the self-aggrandizing tablespace' extends. If the MAXSIZE clause is specified for an auto-croissant undo tablespace when the maximum size is reached, the database can begin to replace the cancellation information remaining.

  2. Yes this will fix the issue that now the calcution for UNDO retention is different.

• Question about Undo Tablespace?

  Hello;
  
  The necessary size of the undo tablespace is the number and size of the transactions that occur on the database. But I do not need to interview one of these transactions for a schema or table using flashback it is a way to disable transactions writing on a table or schema of undo tablespace?
  
  Published by: Ecimen on 04.Mar.2013 03:50
  
  Published by: Ecimen on 03:51 04.Mar.2013

  Ecimen wrote:

  Rob_J wrote:
  OK, it's fine, so what makes you say you build too UNDO? What is the problem you're trying to solve? Or you want to know if you could get back to CANCEL in writing?

  Our log tables generate too much to cancel because we need you connecting all these data (insert and update for the most part)... but we don't care about these log tables, we want to reduce the cancellation written for these tables logs so that we could use more flashback query timestamp older due to more space in the undo tablespace...

  I think I mentioned in my other two answers above that it is not possible to disable the generation of the cancellation, or at least I don't know that there is no way to do it! What you can do, if you are worried about the Undo tablespace grows, it is that make you a tablespace size Undo fixed by controlling the Undo data that are generated. You can use Cancel Advisor of the to do. With the Undo retention period of your proposed, she would like the size of the Undo tablespace tips and you can add about 20-30% extra size and you should be fine. But as I've already said too much, he has No way to stop generating cancellation.

  Aman...

• Undo tablespace continues to grow

  Hello
  My undotbs grows to 14g (even if I have my undotbs actul size 9g) I try to resize the data files, but
  This may not work.
  
  So, I guess for this task
  
  >
  -Create a new as undo tablespace:
  SQL > create undo tablespace UNDOTBS2 datafile "< full file path >" size < small >;
  
  -Change the parameter UNDO_TABLESPACE
  SQL > alter system set UNDO_TABLESPACE = UNDOTBS2;
  
  -Remove UNDOTBS1
  SQL > drop tablespace UNDOTBS1 including content and data files; >
  
  but my question is, is he worthy of delete the undotbs1 whose having a lot of data and if I deleted
  These data (undotablespace), I won't be able to completely recover?
  
  db_version:10.2.0 (Linux)

  There is procedure to drop undo tablespace. If you already increase first then I suggest you to study why his is growing? Check with developers, to monitor the database

• Undo Tablespace - newbie question

  Q1. An Undo Tablespace is required in a database? I thought that only agents were SYSTEM and SYSAUX of TEMP?
  
  Q2. What happens if you do not have an Undo Tablespace?
  
  Q2. How are they an Undo Tablespace to undo / Rollback Segments in a database?

  Jim,

  I did not notice that it is not mentioned in the documentation, or at least I couldn't find if its somewhere. But when 9i has been released, I'm sure that stated explicitly that the number of segments that would be created is 10.

  However, what determines exactly how much is created in the first place? In my case, my database has 61 segments!

  But are you sure that 61 segments belong to a single undo tablespace? My best guess is that you have several Undo tablespace created and the number of segments is of each of them. Can you check and confirm please?

  I understand that the parameter UNDO_RETENTION will determin when these segments can be replaced, but I am trying to get my head round how my database has finished with 61 undo segments and will be he never ever get rid of the any of these segments? (i.e. is it just continue to add but never remove all know is that as a concept of the high water line?)

  Not to my knowledge at least. I know that the number of segments can be less than the number 10, but more which would be created at any time and that too in such a number of top, no, did not meet any reference that has never mentioned it.

  LSO a number of segments are offline - why should it be?

  Yet once, which just goes to confirm my doubt that these segments are displayed including tablespaces offline are not defined by default for your database. A tablespace can be set to the default db only its segments, and it would have also shown online. Again, check parameter undo_tablespace and see dba_rollback_segs as if the segments that are shown as online, belong only this tablespace or more.

  HTH
  Aman...

• UNDO Tablespace size

  Hello
  
  We have a production database with size 120 GB (DB Version 11.1.0.6), and our UNDO Tablespace size is 30 GB.
  
  For the last 4 days, the use of UNDO tablespace is more than 85%.
  
  We have disabled the AUTOEXTEND for the UNDO Tablespace.
  
  So that the UNDO RETENTION is calculated dynamically by Oracle itself and the value is now
  
  TUNED_UNDORETENTION
  -------------------------------------
  339183
  
  Please suggest how to solve this problem.
  
  Thank you!

  Salvation;

  Please see:
  New feature in Oracle 10 G - cancel retention Auto Tuning [311615.1 ID]

  Respect of
  HELIOS

• Free tablespace on undo tablespace

  I have a 8Gig tablespace on database 94Gig which is used for the statement (this is DSS database). Retention of cancellation is set too high (it is 1080 about 3 h). I don't know what is the reason, but it space table undo is full all the time, because of this it is ETL jobs that suppose to run each night fail.
  
  I think bounce (restart database) to free up to undo tablespace.
  
  Do you propose to increase the undo tablespace tablespace or database rebound must release undo tablespace? Please suggest.

  In an SSD long requests are expected. You need your UNDO retention to be longer than your long query, so the 'too long' claim is rather subjective.

  Unless you have the cancellation retention set, Oracle will reuse space annulment, even crush UNDO for younger than retention committed transactions to meet the current requirements of the query.

  Even if you restart the database (which is a horrible idea, from the pit of Redmond) conditions that are initially complete you the UNDO and get errors are likely to come immediately.

  Refresh jobs fail with ORA-01555 or ORA-30036? For these solutions are very different.

  I agree with the first line... allocate more space to CANCEL is probably the solution here, but we cannot say that for sure without knowing the error (and Oracle version would be helpful, too).

  Relevant thread here...
  http://asktom.Oracle.com/pls/asktom/f?p=100:11:0:P11_QUESTION_ID:6894817116500

• Why import data if ready schema and index create, increase in Undo TableSpace

  I have a problem importing data.
  When I export data don't have schema import include the index schema.
  And then I import the schema ready.
  When I import data, I find this Undo TableSpace increase very fast.
  I have therefore two tests.
  1. IMPORT of data and index, every thing ok look
  2 import a schema includes index
  and then import data. Undo Tablespace very rapid increase

  If you mean undo tablespace increase in order to read consisten read.

  N ° cancel space use increases due to the DML. (requests for consistent readings read undo, they generate no cancellation to grow)

  so you're saying that redo log appear, rollback undo segment will increase.

  N ° increase in written cancellations results increase in roll forward.

  IF we import large data, we must export data with the index and import data right now

  If you import large data, you must create the indexes after the data is imported. If the index definitions are included in the export, the default behavior is that import will create them once the data is imported. To do this, undo lower for indexes.
  Note This will generate redo for the creation (but does not cancel and therefore not generate recovery for cancellation). You can avoid this by manually running CREATE INDEX... NOLOGGING - but it means you need to get and modify the scripts CREATE INDEX.

  Hemant K Collette

• relationship between redo log buffer, journal of redo and undo tablespace files

  What is the relationship between the redo log buffer, redo log files and undo tablespace?
  
  what I understand is
  
  redo log buffer is the logical area where all the news of recovery were stored until they are transferred by LGWR bank roll forward log online... but y at - it report any with the undo tablespace with these two?
  
  Please correct me if I'm wrong
  
  Thanks in advance

  redo log buffer is the logical area where all the news of recovery were stored until they are transferred by LGWR bank roll forward log online... but y at - it report any with cancellations

  tablespace with these two?

  There is a link between files redo log and buffer, but the undo tablespace is something else entirely.

  spend it here with this links

  REDO LOG FILES
  http://www.DBA-Oracle.com/concepts/redo_log_files.htm

  BUFFER REDOLOG
  http://www.DBA-Oracle.com/concepts/redo_log_buffer_concepts.htm

  UNDO TABLESPACE
  Undo tablespace to cancel files to undo or roll back uncommitted changes pray the database.

  Hope you understood.

• what background process contributes to writing data undo to undo tablespace

  Hello
  
  By going in a short time I was going just through the data blocks undo residing in the buffer cache. If this process will help the blocks database undo to undo tablespace? As
  
  For redo logs logR to write to disk
  For the buffer cache DBWR contributes to wite on the disc the same for blocks to cancel it?
  
  
  With advance thnx
  
  Philippe

  1 * Select file_name in dba_data_files
  SQL > /.

  FILE_NAME
  --------------------------------------------------------------------------------
  /U01/app/Oracle/oradata/V112/System01.dbf
  /U01/app/Oracle/oradata/V112/sysaux01.dbf
  /U01/app/Oracle/oradata/V112/undotbs01.dbf
  /U01/app/Oracle/oradata/V112/users01.dbf
  /U01/app/Oracle/oradata/V112/example01.dbf

  data files are written on process DBWR