Daily gaps in graphs - Around 12-1am

<%- if @topic_view.topic.tags.present? %>
<%= t 'js.tagging.tags' %>: <%- @topic_view.topic.tags.each do |t| %> <%= t %> <%- end %>
<% end %>
ersion 1.54 - Mon Jul 29 2019 03:47:34 GMT+0100
DB Schema 2019_07_03_132417_create_mpls_saps_table (139)
Web Server Apache/2.4.29 (Ubuntu)
PHP 7.3.7-2+ubuntu18.04.1+deb.sury.org+1
MySQL 5.7.27-0ubuntu0.18.04.1
RRDtool 1.7.0

Is any one able to help please? I have a 3 polling cluster for around 750 hosts. I have some gaps on Juniper hosts which appears to be an issue within their SNMP stack. However every day I get around 1hours worth of gap between 12am - 1am. I cannot seem to find what is causing it. My Cron jobs are default and if run manually do not appear to take long.
Has any one seen this please?

What does your LibreNMS poller CPU utilisation get to during this time because I think I have a similar issue.

You may want to check what you have running in cron at that time, it sounds like there is something kicking off that would cause this

Are you using the Dispatcher Service? I am seeing similar behavior since switching from the Cron jobs to the service. I am in GMT-0400, and have gaps every evening from 20:00 - 20:20.

Anyone else running the service care to comment on whether you’ve seen this behavior?

Yes I am using this service.

I ended up moving back to the cron jobs.