- Oracle Who Is Using Undo
- Undo Space Oracle
- Oracle Undo Tablespace Full
- Oracle Undo Size
Last updated on SEPTEMBER 04, 2019
- Is allocated a slot in a transaction table. A transaction table is part of an undo segment header, which also has a list of the undo blocks that are part of this undo segment. (Each Oracle database has one undo tablespace, with a few undo segments (typically 10-to-30-ish). Oracle tries to assign each active transaction to its own undo.
- Segment Transaction Slot Internals Search BC Oracle Sites Home E-mail Us. The same key value (a real locking – primary key violation). In that case, you would also see an additional TX lock on a rollback segment from the session that is waiting; for ITL waits, this TX lock on the rollback segment would not be seen. Oracle maintains a.
Applies to:
Jun 29, 2018 transaction table slot and the next attempt to start a transaction would see ORA-01554 It seems a little unlikely that this would happan in typical system since Oracle would usually end up stealing an extent from an existing undo segment to use it as the first extent of a new undo segment.
Oracle Database - Enterprise Edition - Version 11.2.0.4 and later
Information in this document applies to any platform.
Symptoms
Below error message reported in the alert log file.
Changes
Cause
Oracle Who Is Using Undo
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Last updated on NOVEMBER 06, 2019
Applies to:
Siebel Financial Services CRM - Version 16.7 [IP2016] and later
Information in this document applies to any platform.
Symptoms
Upgrep fails when running IRM from Siebel 8.1.1.10 to 16.7 in the step Prepare for index creation ,
the following error occurs.
ERROR
-----------------------
create unique index S_ACCELERATOR_U1 on S_ACCELERATOR
('COMMAND_ID', 'NAME', 'WS_ID', 'WS_OBJ_VER') parallel nologging
tablespace SIEBELINDEX
2017-01-05 01:23:01 [tp][ODBC Oracle driver][Oracle]ORA-12801: error signaled in parallel query server P057
ORA-01554: transaction concurrency limit reached reason:no undo segment found with available slot params:0, 0
2017-01-05 01:23:01
2017-01-05 01:23:01 S1000: [tp][ODBC Oracle driver][Oracle]ORA-12801: error signaled in parallel query server P057
2017-01-05 01:23:01 ORA-01554: transaction concurrency limit reached reason:no undo segment found with available slot params:0, 0
2017-01-05 01:23:01
2017-01-05 01:23:01 Dropping index with the same column signature and retrying...
2017-01-05 01:23:01 create unique index S_ACCELERATOR_U1 on S_ACCELERATOR
2017-01-05 01:23:01 ('COMMAND_ID', 'NAME', 'WS_ID', 'WS_OBJ_VER') parallel nologging
2017-01-05 01:23:01 tablespace SIEBELINDEX
STEPS
-----------------------
The issue can be reproduced at will with the following steps:
1. set the undo_management to manual as per the upgrade guide.
2.Run upgrep.
Cause
Undo Space Oracle
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Oracle Undo Tablespace Full
Oracle Undo Size
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