Article Number
000002023
Applies To
RSA Product Set: Security Analytics
RSA Product/Service Type: SA Security Analytics UI
RSA Version/Condition: 10.x , 11.x
Platform: CentOS
O/S Version: 6
Issue
Sometimes, particularly on Hybrids and VMs, there could be memory shortfalls. This can be seen when viewing top or free. At certain times, the memory is allocated to cached items which are no longer needed. When this occurs, performance issues may result in degrading investigation speed.
Resolution
To free cached memory:
1. SSH to the appliance as root.
2. Stop all the nw services running on the appliance, (such as nwdecoder, nwconcentrator, nwarchiver, nwlogdecoder...etc)
3. Type in the below command:
echo 3 > /proc/sys/vm/drop_caches
4. Start all nw services of the appliance.
5. Check the memory consumption with either the top or free command.
