NetWorker: NMDA Oracle backup failure ORA-00603 and ORA-27515

Summary: Oracle backup fails with error: ORA-00603: ORACLE server session terminated by fatal error ORA-27515: inadequate memlock limit or driver settings

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Symptoms

NetWorker manual and scheduled backup failure as it starts. Oracle installed on the Linux operating system

 

Cause

On Oracle client host:

#ps -ef | grep nsrexecd
(take note of the process ID PID for next command)
#cat /proc/PID/limits

Output shows:

Max locked memory         65536                65536                bytes

 

Resolution

On Oracle client host:

cd /etc/systemd/system
ls -ltr | grep networker.service
output will be: networker.service -> /opt/nsr/admin/networker.service
vi /opt/nsr/admin/networker.service

Append the line below to networker.service (do not change any other line entry in networker.service):

LimitMEMLOCK=infinity
Save the networker.service

Then run the below commands:

systemctl daemon-reload
systemctl restart networker

ps -ef | grep nsrexecd
(take note of the process ID PID for next command)
cat /proc/<PID in above command>/limits

Max locked memory         unlimited            unlimited            bytes  => the value changes from 65536 to unlimited

Run the Oracle database or FS backup from NetWorker NMC.

 

Article Properties
Article Number: 000183206
Article Type: Solution
Last Modified: 10 Feb 2025
Version:  6
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