how to check archive log destination size in oracle
how to check archive log destination size in oracle
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1. Check if the database is turned on for flashback (view two nodes Rac1 and RAC2 Open Archive log)Sql> archiveloglistSp2-0734:unknown command Beginning "Archivelog ..."-rest of line ignored.Sql> Archive Log ListDatabase log mode
Error: Ora-00257:archiver error. Connect internal only, until freedCause: The archive log is fullProcessing method:1. SYS User LOGIN databaseSqlplus/nologConnect/as SYSDBA2. View Flash_recovery UsageSELECT * from V$flash_recovery_area_usage;3. View the archive pathSql> show parameter recover;NAME TYPE VALUE---------------------------------------------------------
Check whether there is a problem with the Oracle10GRACredo Log Size
Determines whether the Oracle 10g rac redo log size is faulty.
Here we will mention two possible problems.
FirstBatch Processing TaskThis task may not have e
block, the position is the size, and the size is 16 bytes (16 binary 10), that is, if the offset = = 10, the header is immediately after the size of the record. Guess that offset should be less than 512-16-the record header (the smallest should be 24 bytes) = 472 bytes. Block starting position after the +offset, is the normal operation of the record, the block
a good memory is better than a bad pen, it is easy to read.
log file can be resize, directly enlarge the size of the log file. 10g is not possible.
the general method on the web is to create a new two temporary log group (Oracle requires at least two
Log on to PL/SQL Developer, log on to the local database, and check that the Oracle listening service is not started. Right-click to start the listening program and report an error. How can this problem be solved ?,
I. Error description
When you log on to PL/SQL Developer t
newly added redo log group, which is not yet in use, the status is unused)5. For the active state, that the dirty data here is not written to the database, manually add a global checkpoint, urging Ckpt immediately wake up DBWR write dirty dataSql>alter system checkpoint;View V$logSTATUS thread# group#—————- ———- ———-INACTIVE 1 1Current 1 2UNUSED 1 3The group 1 is also rebuilt using 2, 3 steps.6. Follow 4,5 to remove all active redo logsBy this, all r
altered.
SQL> alter database drop logfile group 3;
Check whether a log group is deleted.
SQL> select group #, sequence #, bytes, members, status from v $ log;
GROUP # SEQUENCE # BYTES MEMBERS STATUS--------------------------------------------------------4 140 524288000 1 INACTIVE5 141 524288000 1 CURRENT6 136 524288000 1 INACTIVE
4. The operating system deletes
Oracle online logs and Oracle archive logs record the complete change information of the entire database. Is an important part of Oracle architecture. Therefore, the online log plan is similar.
Oracle online logs and
Adjust the redo log file size in oracle rac, racredoAdjust the size of the redo log file under rac(1) view the current log information:Select * from v $ logfile;(The path in step 2 can be seen in the MEMBER column here. The redo f
database drop logfile group 1;Alter database drop logfile group 2;Alter database drop logfile group 3;
4. delete files in the original log group 1, 2, and 3 in the operating system
5. Rebuild log groups 1, 2, and 3Alter database add logfile group 1 ('d: \ ORACLE \ ORADATA \ ORADB \ REDO01_1.LOG ')
Adjust the redo log file size in Oracle RAC
Adjust the size of the redo log file in Oracle RAC.
(1) view the current log information:
Select * from v $ logfile;
(The path in step 2 can
files Select * from V$logfile; Since Oracle does not provide a resize-like parameter to resize the redo LOG file, it is only possible to delete the file before rebuilding it. Because Oracle requires at least two sets of log files to be used, it cannot be deleted directly, and the Redo
Create 3 new log groups
sql> ALTER DATABASE ADD LOGFILE GROUP 4 ('/u01/app/oracle/oradata/orcl/redo06.log ') SIZE 500M;sql> ALTER DATABASE ADD LOGFILE GROUP 5 ('/u01/app/oracle/oradata/orcl/redo05.log ')
Status column (status):SELECT * from V$log;Only status listed as inactive state can be deleted:ALTER DATABASE drop logfile Group 1;ALTER DATABASE drop logfile Group 2;ALTER DATABASE drop logfile Group 3;ALTER DATABASE drop logfile Group 4;ALTER DATABASE drop logfile Group 5;ALTER DATABASE drop logfile Group 6;alter system switch logfile; (Toggle log to change Status column, then delete)If you cannot change
The following describes how to resizes Oracle log files online. If you have encountered similar problems in Oracle log files, take a look.
1. create two new log groupsAlter database add logfile group 4 ('d: \ ORACLE \ ORADATA \ OR
Assume that there are three log groups, each of which has one member and the size of each member is 1 MB. Now we want to change the size of all three log groups to 10 MB. 1. create two new days
Assume that there are three log groups, each of which has one member and the
Assume that there are three log groups, each of which has one member and the size of each member is 1 MB. Now we want to change the size of all three log groups to 10 MB.1. create two new log groupsAlter database add logfile group 4 ('d: \
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