New Linode customer here. I'm not sure what to make of these system monitoring graphs. I have no other monitoring tools to cross-check against, so it's possible it's simply the tool. I see these small gaps in data several times a day, indicating a possibly inaccessible server (yet uptime stats show that there was no server downtime).

http://imgur.com/5HzbQ6G

The graphs sometimes have gaps, it doesn't mean your node was down there was just a problem with the graph program communicating with the host node

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