Thanks Jeff, They are on all instances of the cluster, with the same timeframe (give or take).
Ill look into your suggestions., thank you for your guidance. From: Jeff Jirsa [mailto:jji...@gmail.com] Sent: 21 September 2017 12:48 To: user@cassandra.apache.org Subject: Re: Understanding Messages in the Debug.log Could also be a network hiccup, an NTP problem, a disk pause, or anything that causes a long gc pause including misconfigured heap. Are they all on the same machine? Or all instances in the cluster? If there are so many you need to root cause it, you probably want to look for correlation with other entries in the debug log, or start inspecting the heap/thread pools with some combination of tpstats and dumping the heap and looking at the running threads may give you an indication of what’s going on. -- Jeff Jirsa On Sep 21, 2017, at 4:37 AM, Jonathan Baynes <jonathan.bay...@tradeweb.com<mailto: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<mailto: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<mailto: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. Or if they can be ignored, how do I supress these? 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