The message is caused by the Gossip message exchanged. It doesn't have anything to do with the load on the cluster. I asked the same question on the datastax slack. This is the answer from one of the Datastax engineers (Erick Ramirez):
"`FailureDetector` checks if a node hasn't responded for 5 seconds before marking it as down, otherwise it doesn't do anything (ignores) if last response was within 5 seconds (`2002779703` 2 secs in your case) what i'm trying to say is that you don't have to worry about anything" On Thu, Sep 21, 2017 at 1:37 PM, Jonathan Baynes < jonathan.bay...@tradeweb.com> wrote: > Thanks Jacob, > > > > I’ve already seen this, but it doesn’t answer my question, as this is a > production Cluster, which at present, has no data and is not being written > too, its being built to go live shortly, so with no data, a Keyspace with a > table designed but no data in it, only system databases, what on earth > could be causing load on the cluster to cause the error message?? > > > > > > > > *From:* Jacob Shadix [mailto:jacobsha...@gmail.com] > *Sent:* 21 September 2017 12:34 > *To:* user@cassandra.apache.org > *Subject:* Re: Understanding Messages in the Debug.log > > > > check out this thread - https://www.mail-archive. > com/user@cassandra.apache.org/msg52313.html > <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.mail-2Darchive.com_user-40cassandra.apache.org_msg52313.html&d=DwMFaQ&c=sA0VaJZJFLZREu2pbPeqjXHJ-Wd9NNzgHW3gpUOLSSk&r=CNKccIKIKCVbYTu1VxR8dIOP6NLpf4fYjidpNm-diQ8&m=0LpreILsiIHqijRbJ-hSyC7R1Hq3hMhquXS3xcIDLjo&s=T5vuzfn8ElJgnkkZ4sQTkQUMwN-_GEOacqRbeVayQUQ&e=> > > > -- Jacob Shadix > > > > On Thu, Sep 21, 2017 at 4:56 AM, Jonathan Baynes < > jonathan.bay...@tradeweb.com> wrote: > > Good Morning Community, > > > > Can anyone help me understand what these messages (and I have a lot of > them in the log) mean, they must be a symptom of something but I am unsure > how to starting working this out. > > > > I’m using C* 3.0.11, CQL 5.0.1. > > > > I have 6 node ring over 2 DC’s (3 in each DC) each of the nodes has this > message in the log. > > > > The message in the debug log is > > DEBUG [GossipStage:1] 2017-09-21 09:19:52,627 FailureDetector.java:456 - > Ignoring interval time of 2000275419 > > > > > > There are so many of these messages, I’d like to find the root cause of > this, if anyone could help that would be great. 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