1946592 - The number of log backup grows very fast

Symptom

You notice the log backup files ( Normally in folder /usr/sap/<sid>/HDB<Instance Number>/backup/log) grow very fast.

Environment

SAP HANA database 1.0
SAP HANA database 2.0

Cause

You have set the parameter log_backup_timeout_s to a small value, e.g 15 seconds or less.
So the log backup files will be generated every 15 seconds, even though the log segment is not full.

Resolution

You need to change the parameter log_backup_timeout_s back to its default 900:

• From SAP HANA Administration Console(HANA Studio)

Configuration --> global.ini --> persistence --> log_backup_timeout_s --> 900

• Or command:

alter system alter configuration ('global.ini','SYSTEM') unset ('persistence','log_backup_timeout_s') with reconfigure

See Also

1642148 - FAQ: SAP HANA Database Backup & Recovery
1679938 - DiskFullEvent on Log Volume