clean up log files

Our ETL is in Production for a while, it generate a lot of logs. Like several Millions of log files.
We found we cannot create system backup if we don't delete logs from monitor tab. it just frozen the system if we create Repository backup.
Here is the question:

1. How to create Repository backup, if we have a lot of logs in monitor?
2. Does ETL has any tool or feature to clean old logs?

Thanks

What is your repository type?

MS SQL Server

You can use MS SQL Server backups as alternative
If you want to clear logs you can delete it by runnig script

delete from QUEUE_HISTORY
delete from QUEUE_ACTIONS_HISTORY
or
truncate table QUEUE_HISTORY
truncate table QUEUE_ACTIONS_HISTORY

www.etl-tools.com/wiki/knowledgebase:repository_tables

What about the several million log files under C:\ETL\logs folder?
What about we want to keep a backup of current logs for a while for trouble shooting?

Do we have the stop ETL Scheduler . before we do backup? running live database backup scares me.(it is usually for Disaster recovery )
Does ETL have best practice for log management? when do clean it. how to clean it. how to back it up,
Repository Backup looks like just Don't do the job, when logs are big.

Thanks

If you have million of logs files you probably have a lot of data in QUEUE_HISTORY, QUEUE_ACTIONS_HISTORY tables
If you delete data from them your repository will become much smaller

Regarding the log file you can always move them into different folder using file operation action.
For example you can move files older than 10 days and compress them