Innodb_available_undo_logs was removed in MySQL 8.0.2. The number of available rollback segments per tablespace may be retrieved using SHOW VARIABLES LIKE 'innodb_rollback_segments'; Innodb_buffer_pool_dump_sta
查询MOS[ID 761128.1],发现可能是Oracle bug导致(BUG:6799685 – ORA-1555 ERROR WITH QUERY DURATION=0 AND UNDO_RETENTION=1800和BUG:5475085 – V$UNDOSTAT.EXPBLKREUCNT IS NEVER INCREMENTED) 5.解决方法 Increase the size of the UNDO tablespace and increase the UNDO_RETENTION parameter value to try t...
查询MOS[ID 761128.1],发现可能是Oracle bug导致(BUG:6799685 – ORA-1555 ERROR WITH QUERY DURATION=0 AND UNDO_RETENTION=1800和BUG:5475085 – V$UNDOSTAT.EXPBLKREUCNT IS NEVER INCREMENTED) 5.解决方法 Increase the size of the UNDO tablespace and increase the UNDO_RETENTION parameter value to try t...
One option is to create a new undo tablespace and switch to the new Undo tablespace. 有一些解决此问题的方法。一种选择是创建一个新的undo tablespace并切换到新的Undo tablespace For example: 1 2 3 4 CREATE UNDO TABLESPACE undotbs_02 DATAFILE '/u01/oracle/rbdb1/undo0201.dbf' SIZE 2M REUSE ...
Do not dump any tablespace information –add-drop-database Add aDROP DATABASE before each create –add-drop-table a DROP TABLE before eachcreate. (Defaults toon; use –skip-add-drop-table to disable) –add-locks Add locks around INSERT statements. (Defaultsto on; use –skip-add...
6 、对于InnoDB 引擎,你可以使用innodb_tablespace_monitor 来检查表空间文件内文件空间管理的完整性。 7 、对磁盘做raid ,减少磁盘出错并提高性能。 8 、数据库服务器最好只跑mysqld 和必要的其他服务,不要跑其他业务服务,这样减少死机导致表损坏的可能。
I have requirement like I have multiple databases in one server,I would like to know what is the last transaction (insert,updates,deletes,etc..)happened in particular database and on which table.Early response is appreciable.Regards,All replies (4)...
| Com_alter_tablespace | 0 | | Com_alter_user | 0 | | Com_analyze | 0 | | Com_begin | 0 | | Com_binlog | 0 | | Com_call_procedure | 0 | | Com_change_db | 0 | | Com_change_master | 0 | | Com_check | 0 | ...
P.program, TBS.block_size, T.tablespace ORDER BY sid_serial; Feel free to comment on / provide your feedback. Have a good day CSM. Filed underUncategorizedTagged withapplication teams,execution plan,oracle optimizer,oracle rdbms,query execution,temp space ...
B.whenthetablespacehassegmentswithdatainit C.whenthetablespaceisadefaultpermanenttablespaceforthedatabase D.whenthetablespacecontainsatablethatiscurrentlybeingusedbytransactions E.whenthetablespacecontainsundodatathatisneededtorollbackanuncommittedtransaction 点击查看答案 第6题 Whichofthefollowingbestdescribesafullbac...