Sunday, September 30, 2012

Checkpoint Not Complete

Error Will be In AlertSID.log Like This :
Thu Jan 14 22:12:55 2011
Thread 1 cannot allocate new log, sequence 46352
Checkpoint not complete

To Solve this Issue you Can Do More Than One Thing But All of the Solution is Simple :

Solution One :

Modify Database Parameter archive_lag_target Like This :

alter system set archive_lag_target=0 scope=both;

Solution two :

1-backup Full Database
2-Check Free Disk Space
3-Start Do the Following :

SELECT, a.member, b.bytes FROM v$logfile a, v$log b WHERE =;

select group#, status from v$log;

Now You need to Work Step by Step On Inactive Logs , and Stat Drop Them like the following :

alter database drop logfile group 1;
Re add the Log File

alter database add logfile group 1 ( ‘/Log-Name01.log‘,/Log-Name02.log’ ) size 75M

alter system switch logfile; / Alter System Checkpoint
 Do this For The Group that you have , and rearrange them again By Adding new Group contain more than one redo log inside them

Simple !!!

Osama Mustafa

1 comment:

  1. Hello Osama!! thanks for this blog, it was so helpfully, just i have a question, can i "reuse" the file from redo log dropped?, or drop the file too using "alter database drop logfile group 1;", i tried but appears this error "SQL Error: ORA-01184: logfile group 1 already exists 01184. 00000 - logfile group %s already exists", so after drop the file with sql command, also i removed the file with "rm" in S.O. command line. Thanks for your comments.