When navigating to Health & Wellness -> System Stats Browser -> Historical graph, it is not showing values for some statistics such as Meta Rate (Current), Meta Rate (maximum), Session Rate(Current), Session Rate (maximum) and Sessions Behind.
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Long Host Name being more than 64 Characters for Decoder Source in Concentrator. Stats are arriving from collectd of the Concentrator into SMS but due to the long host name, the message is not being handled by SMS correctly.
For example, on the Security Analytics server, the decoder source is stored as "concentrator_devices.192.168.x.x:56004" under /var/lib/netwitness/collectd/rrd/UUID Image description
If the user replaces the IP address with its Decoder hostname, it becomes 64 Characters long such as "concentrator_devices.rsa_longer_decoder_hostname:56004". 64 Characters is the limit for a complete property name.
A feature enhancement request has been submitted to support longer hostnames that exceed 63 Characters in the System Monitoring Service (SMS).
Connect to the Concentrator via SSH as the root user.
Replace each occurrence of the Source Decoder hostname with IP Address in NwConcentrator.cfg file, as shown in the example below.
Source Decoder hostname : rsa_longer_source_decoder_hostname
IP : 192.168.10.10
# cd /etc/netwitness/ng/
# cp NwConcentrator.cfg NwConcentrator.cfg.bak
# vi NwConcentrator.cfg
Press colon (:) and enter the line below, which changes.line, It changes only whole words exactly matching hostname to IP address. After confirming the command, you can save the file and exit by typing :wq!