Github user nickwallen commented on the issue:
https://github.com/apache/metron/pull/1207
> @anandsubbu With my current changes, modifying any config setting in the
PCAP tab will require restarting both Metron PCAP and Metron REST
services--which is necessary since user can change a PCAP-service related
property or a PCAP-REST related property (or both)
I agree. Since we have pcap properties affecting both the topology and
REST on the same tab, we have to restart both services. That could be changed,
but I think it is good enough for now. Not a big deal in my opinion.
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