Thread 1 cannot allocate new log, sequence

I got ” Thread 1 cannot allocate new log, sequence ”  error in Oracle database.

 

Thread 1 cannot allocate new log, sequence

 

Details of error are as follows.

Thread 1 cannot allocate new log, sequence 204

Checkpoint not complete

 

 

 

Thread 1 cannot allocate new log, sequence

To solve this error, increase the archive_lag_target as follows.

SQL> show parameter archive_lag_target;
SQL> alter system set archive_lag_target=0 scope=both sid=’*’;
or
SQL> alter system set archive_lag_target=1800 scope=both sid=’*’;

 

Or you should add new logfiles as follows.

ALTER DATABASE ADD LOGFILE GROUP 6 (‘+DATA/TESTDB/ONLINELOG/redotest06.log’) SIZE 1024M;

ALTER DATABASE ADD LOGFILE GROUP 7 (‘+DATA/TESTDB/ONLINELOG/redotest07.log’) SIZE 1024M;

ALTER DATABASE ADD LOGFILE GROUP 8 (‘+DATA/TESTDB/ONLINELOG/redotest08.log’) SIZE 1024M;

ALTER DATABASE ADD LOGFILE GROUP 7 (‘+DATA/TESTDB/ONLINELOG/redotest09.log’) SIZE 1024M;

 

Or You may Drop and recreate redolog files with size greater than earlier.

ALTER DATABASE DROP LOGFILE GROUP 3;
ALTER DATABASE ADD LOGFILE GROUP 3 (‘+DATA/TESTDB/ONLINELOG/redotest.log’) SIZE 16384M;

 

You should perform this action for all existing logfiles.

 

You should read the following post to learn more details about Redolog files and how to manage them.

Managing Online Redo Log Files

 

Do you want to learn Oracle Database for Beginners, then read the following articles.

Oracle Tutorial | Oracle Database Tutorials for Beginners ( Junior Oracle DBA )

 

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About Mehmet Salih Deveci

I am Founder of SysDBASoft IT and IT Tutorial and Certified Expert about Oracle & SQL Server database, Goldengate, Exadata Machine, Oracle Database Appliance administrator with 10+years experience.I have OCA, OCP, OCE RAC Expert Certificates I have worked 100+ Banking, Insurance, Finance, Telco and etc. clients as a Consultant, Insource or Outsource.I have done 200+ Operations in this clients such as Exadata Installation & PoC & Migration & Upgrade, Oracle & SQL Server Database Upgrade, Oracle RAC Installation, SQL Server AlwaysOn Installation, Database Migration, Disaster Recovery, Backup Restore, Performance Tuning, Periodic Healthchecks.I have done 2000+ Table replication with Goldengate or SQL Server Replication tool for DWH Databases in many clients.If you need Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS Consultancy and Training you can send my email adress [email protected].-                                                                                                                                                                                                                                                 -Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS ve linux Danışmanlık ve Eğitim için  [email protected] a mail atabilirsiniz.

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