Server Administration :: Rollback Segment Too Small ORA-01555
Jan 19, 2012
One of the users received the error
ora-01555: rollback segment too small
I have read about the error and saw that it is caused by transactions made upon same data, filling to maximum one of the UNDOTBS rollback segments.It happens only once in a while, each time on a different Rollback Segment.
I've read that i should do a few things to enlarge those segments, such as bring a 1. segment offline, 2. drop it and then 3. create it with a bigger size & possibly a bigger extent setting
i've also read that those actions aren't relevant if you have the parameter UNDO_MANAGEMENT set on AUTO, which is actually the case.is that why when i execute ALTER ROLLBACK SEGMENT RB_SEG_NAME_11$ OFFLINE;
1. How do i solve my issue with the Rollback segment being too small to contain the snapshot with the requested SCN?
2. what does the parameter UNDO_MANAGEMENT mean? should i change it, in order to adjust my Rollback Segments attributes, to prevent my error of re-occurring?
View 10 Replies
ADVERTISEMENT
Nov 3, 2010
While taking backup of schema using Expdp, I got the following error on one of the tables in the schema due to which export for this table could not be done.
Re: ORA-01555: snapshot too old: rollback segment number 2 with name "_SYSSMU2$" too small.
Undo retention time is 14400 sec and Undo Tablespace is Auto Extensible. Table to be exported contains 100 crore rows.
View 1 Replies
View Related
Apr 8, 2013
How to check/find the size of current ROLLBACK segment in oracle 10g ?
View 20 Replies
View Related
Oct 14, 2010
On a huge transaction the buffer cache gets fulled and on that case oracle automatically writes to the data files. And as such when we issue commit statement it does not take more time. It only writes the dirty buffers to the dirty buffers to the datafiles.
When we rollback does the data gets erased from the datafile. What is the mechanism of rolling back ? It should be clearing the dirty buffers for sure.
View 8 Replies
View Related
Dec 23, 2011
i am getting this error during expdp ORA-01555 -snapshot too old
1. i increased undo_retention i.e 50000
2. i execute expdp during late night when almost zero user is online so no commit from any other session.
3. we have a table having BLOB data type field in a table which is 500 GB in size.complete DB size is 700 GB
where and why this error exists.if corruption of BLOB so how to check that etc. the same error is occurring in three of our data centres during expdp.
View 4 Replies
View Related
Jan 25, 2012
I am getting below ORA-01555 error in alert log everyday.
ORA-01555 caused by SQL statement below (SCN: 0x09ad.86a4562a):
Sat Jan 21 08:39:45 2012
SELECT (NVL(MAX(BLOCK_ID + BLOCKS ),0) * :b1 ) / 1024
FROM DBA_EXTENTS WHERE TABLESPACE_NAME = :b2 AND FILE_ID = :b3
I cannot able to find the sql_id here. So how can I find from which process or session this query is firing? before increasing the undo size, I need to analyze as why it is occuring?
undo_management string MANUAL
undo_retention integer 900
undo_suppress_errors boolean FALSE
undo_tablespace string
View 9 Replies
View Related
Jun 23, 2011
We are running a query in one of our databases using the database the link. The query fails in the middle with "ORA-01555: snapshot too old". Not sure, about the database which this error message points to? Will it be the database we have logged in or it is the database where db link points ?
View 7 Replies
View Related
Dec 26, 2012
Are the terms object and segment same ? what are the differences between them? what are similarities between them?
View 3 Replies
View Related
Jun 8, 2013
How can i increase the sga_target in this case.Im unable to create a pfile.
SQL> startup
ORA-01078: failure in processing system parameters
ORA-00821: Specified value of sga_target 2048M is too small, needs to be at least 4112M
SQL> startup nomount
[code]...
The $ORACLE_HOME/dbs location has a spfile.
more initQR01MRA1.ora
SPFILE='+DB_DATA/QR01MRA/spfile'
View 2 Replies
View Related
Dec 28, 2011
I am working to understand the space allocation of table with the value we provided with the data type. For that I have created a table with varchar2 and length 50. Size of table created is of 65536 Bytes. This is when we don't have any insertion in the table. Later when we insert some rows, total size if the segment still remain same that is 65536 bytes.
Now again when I created table with varchar2 and length this time is 500 but still it is created with same size that is 65536. So can you just explain, on what values segment size depends on and how the length effect the size & space allocation.
db_block_size is 8192.
View 2 Replies
View Related
Jun 26, 2011
When creating manually a pfile from an spfile
create pfile ='mypfile.ora' from spfile;
I noticed that many parameters are missing in the generated pfile, there are just some 20 parameters instead of 250 ! where are the others ?
View 3 Replies
View Related
Sep 26, 2011
Does It can not shrink in manual space managment tablespace?
I was confused by the error ORA-10637: The segment does not exist
create tablespace test_manual
datafile 'd:oracleoradataorcl est_manual.dbf' size 100m
segment space management manual
create user test_man identified by hxl
default tablespace test_manual;
grant create session to test_man;
grant resource to test_man;
[code]....
View 3 Replies
View Related
Oct 2, 2012
I noticed my DB is generating a lot of "small" .arc files and I am usure why. As you can see from the v$log query my log file size is set to 50MB. But yet BLOCKS*BLOCK_SIZE never adds up to 50MB.
Is there anything else I can look into to see how to make the .arc files larger?
SQL> select group#, thread#, bytes from v$log;
GROUP# THREAD# BYTES
---------- ---------- ----------
1 1 52428800
2 1 52428800
3 2 52428800
4 2 52428800
select blocks, block_size, blocks*block_size from v$archived_log where sequence# between 63876 and 72851 and thread# = 1
BLOCKS BLOCK_SIZE BLOCKS*BLOCK_SIZE
---------- ---------- -----------------
28 512 14336
28 512 14336
28 512 14336
55 512 28160
[code]...
View 18 Replies
View Related
Oct 13, 2010
am using Oracle 10.2.0.4 on win 2008 server SP2. I would like to know if we can set the Segment Space Management feature to AUTO for RBS and Temporary tablespaces. As the data is not permanent in these tablespaces, will it manage automatically?
Presently its Segment Space Mgmt is manual for System, RBS, Temporary tablespaces.
View 4 Replies
View Related
Jun 17, 2010
what's the difference between having BIG datafile (32GB) vs many small datafiles (4GB) replacing a Big one.
View 3 Replies
View Related
May 16, 2012
I have a database where view v$database_block_corruption shows a corrupted block
SQL> select * from v$database_block_corruption;
FILE# BLOCK# BLOCKS CORRUPTION_CHANGE# CORRUPTIO
---------- ---------- ---------- ------------------ ---------
4 756652 1 5.5157E+12 CORRUPT
I am not able to get the relevant segment from the above information
SQL> select segment_name, segment_type, owner
2 from dba_extents
3 where file_id = 4
4 and 756652 between block_id
5 and block_id + blocks -1;
no rows selected
DBVERIFY Summary
DBVERIFY - Verification complete
Total Pages Examined : 3932160
Total Pages Processed (Data) : 3119107
Total Pages Failing (Data) : 0
Total Pages Processed (Index): 755048
[code]....
I have uploaded the complete logfile.
Below is a part of logfile
DBVERIFY - Verification starting : FILE = /prd/dvp/ora/oradata/LHF/disk06/gds_t01_01.dbf
Block Checking: DBA = 21728172, Block Type = KTB-managed data block
**** kdxcoavs = -84 < 0, avail = 3129
---- end index block validation
Page 756652 failed with check code 6401
##not here that 756652 is the same block# mentioned in v$database_block_corruption
here i tried finding the OBJECT ID as below
SELECT dbms_utility.data_block_address_block(21728172) "BLOCK", dbms_utility.data_block_address_file(21728172) "FILE" FROM dual;
BLOCK FILE
---------- ----------
756652 5
Now for the same BLOCK it is giving different File, again the segment_name or segment_id could not be found from the above information.
View 4 Replies
View Related
Oct 18, 2010
the syntax to make a tablespace's segment space mnagement auto which is segement management is *manual* and exent management is *local autoallocate*.
View 2 Replies
View Related
Jan 20, 2010
What do you think of this 11.2 parameter? It can give some pretty weird results.
SQL> create tablespace ts1 datafile size 10m;
Tablespace created.
SQL> create table t1 (c1 date) tablespace ts1;
Table created.
SQL> drop tablespace ts1;
Tablespace dropped.
SQL> insert into t1 values(sysdate);
insert into t1 values(sysdate)
[code]...
View 5 Replies
View Related
Mar 10, 2012
When i try to create a duplicate table from an existing table i get error.
SQL> create table COMP_TEMP as select * from COMPETITIVE;
create table COMP_TEMP as select * from COMPETITIVE
*
ERROR at line 1:
ORA-01652: unable to extend temp segment by 128 in tablespace DATA_01
The table size is 15 gb.
Currently the tablespace has 2GB free space. If i need to increase the size of the tablespace DATA_01,how much space is required.
View 9 Replies
View Related
Aug 11, 2011
I have executed the below statement to move a bulk of table from source table space-SHOP3_DATA to destination tablespace -LINUX_CATA. Before executing the statement the source table space was having 85% full message . While executing the statement this is giving the error for the source tablespace means the the tablespace is getting consumed in the source TS. Currently no-one is using the tablespace SHOP3_DATA' . If I add datafile to the SHOP3_DATA the problem may be solved but why the space is getting consumed in the source. Now the tablespace SHOP3_DATA is 95% full
SQL> alter table LINUX_CATA.TST_FOLDERS move tablespace LINUX_CATA;
Table altered.
SQL> alter table LINUX_CATA.TST_SEARCH_TESTS move tablespace LINUX_CATA;
alter table LINUX_CATA.TST_SEARCH_TESTS move tablespace LINUX_CATA
*
ERROR at line 1:
ORA-01658: unable to create INITIAL extent for segment in tablespace SHOP3_DATA
[code]....
View 10 Replies
View Related
Nov 3, 2010
We are taking full logical backup ( export) in freeze hours( no user login). But prompting error "ORA-01555: snapshot too old: rollback segment number 7 with name "_SYSSMU7$" too small".
View 6 Replies
View Related
Jun 12, 2012
After importing my dump, i have noticed that ARGUMENT$ segment taken more than 9 GB out of my total SYSTEM table space.I belive ARGUMENT$ table is used only to store procedure/package parameter details. But I am not sure Why it has taken more space.
Is there any way we can reduce the SYSTEM table space? using with the below details?
Import Details:
--------------
1) Imported using IMP DP. List of parameters used are userid, logfile, dumpfile, directory, job_name and remap_schema.
2) Dump file size is 3GB
3) The below list will be no. of objects imported using my dump.
OBJECT_TYPE COUNT(1)
------------------- ----------
DATABASE LINK 1
FUNCTION 246
INDEX 4742
[code]...
4) The below list will be amount of space occupied by the segments in the SYSTEM.
col owner form a5 word wrap
col segment_name form a15 word wrap
col segment_type form a15 word wrap
select owner,segment_name,segment_type
,bytes/(1024*1024) size_m
[code]...
View 4 Replies
View Related
Nov 14, 2011
I am doing an import job and the following error occurs during Index import. is the reason for this error?
View 1 Replies
View Related
Apr 4, 2013
while importing data i got this error in my log file.and i cannot import my data successfuly
in my log file error i found like this
ORA-01658: unable to create INITIAL extent for segment in tablespace USERS
IMP-00017: following statement failed with ORACLE error 1658:
IMP-00003: ORACLE error 1658 encountered
ORA-01658: unable to create INITIAL extent for segment in tablespace USERS
IMP-00017: following statement failed with ORACLE error 1658:
i can import my data using imp utility using this syntax
C:UsersAdministrator>imp tiger/****@tcs file=E:DUMP s.
dmp log=E:DUMP s.log fromuser=tiger121 touser=tiger statistics=none
this my user tiger default tablespace its uses and its a auto extend on and locally managed tablespace,and i have enough space on my drive also.
View 21 Replies
View Related
Apr 29, 2010
I am getting the ORA-01555 Snapshot Too Old error while excecuting my procedure (which is running in OLTP system). My procedure contains one table which master table of my DB which holds 1.2 GB of data. The proc is using the MERGE statement which is inserting or updating the data in the master table, while the condition of MERGE is using the subquery in which 2 DBlink table is used (in which one table is updating quite frequently). The proc. is executing in the interval of 6 hrs i.e 4 times a day and its is scheduled in job. find the proc. as an attachment.
View 3 Replies
View Related
Feb 5, 2007
how to tackle the error ORA-01555: Snapshot too old: rollback segment number XX with name NNN too small.I am using Oracle 8i .ways to tackle it without extending the rollback segment
View 2 Replies
View Related
Jan 12, 2012
I have a problem regarding with Oracle Flashback Query.if I'm doing flashback a database two hours before,I'm receiving ORA-01555: snapshot too old error.My question is:How to able to extend the based on the hour or day?
View 1 Replies
View Related
Mar 26, 2010
, which operator is more costly (Commit or Rollback) in terms of performance?
View 5 Replies
View Related
Apr 18, 2012
i have a problem that i have run a script in a database which is generated after taking diff from another same structured database and exit normally from sql prompt then is there anyway in oracle to rollback this whole script(means want to make database as it was before running script) or not?
View 2 Replies
View Related
Aug 31, 2013
Having PL/SQL procedure and calling sys dba procedure to alter rollback segment to online and after that to set the transaction to this rollback. The rollback altered to online but transaction still running on available rollback and not the one I was meant to. The user have executing grant on the sys dba procedure.
View 21 Replies
View Related
