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> > 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 > > -- 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. Or if they can be ignored, how do I > supress these? > > Thanks > J > > Jonathan Baynes > DBA > Tradeweb Europe Limited > Moor Place • 1 Fore Street Avenue • London EC2Y 9DT > P +44 (0)20 77760988 • F +44 (0)20 7776 3201 • M +44 (0)xxxx xxxxxx > jonathan.bay...@tradeweb.com > > <image001.jpg> follow us: <image002.jpg> <image003.jpg> > ————————————————————————————————————————— > A leading marketplace for electronic fixed income, derivatives and ETF trading > > ________________________________________________________________________ > > This e-mail may contain confidential and/or privileged information. If you > are not the intended recipient (or have received this e-mail in error) please > notify the sender immediately and destroy it. Any unauthorized copying, > disclosure or distribution of the material in this e-mail is strictly > forbidden. Tradeweb reserves the right to monitor all e-mail communications > through its networks. If you do not wish to receive marketing emails about > our products / services, please let us know by contacting us, either by email > at contac...@tradeweb.com or by writing to us at the registered office of > Tradeweb in the UK, which is: Tradeweb Europe Limited (company number > 3912826), 1 Fore Street Avenue London EC2Y 9DT. To see our privacy policy, > visit our website @ www.tradeweb.com. > > > ________________________________________________________________________ > > This e-mail may contain confidential and/or privileged information. If you > are not the intended recipient (or have received this e-mail in error) please > notify the sender immediately and destroy it. Any unauthorized copying, > disclosure or distribution of the material in this e-mail is strictly > forbidden. Tradeweb reserves the right to monitor all e-mail communications > through its networks. If you do not wish to receive marketing emails about > our products / services, please let us know by contacting us, either by email > at contac...@tradeweb.com or by writing to us at the registered office of > Tradeweb in the UK, which is: Tradeweb Europe Limited (company number > 3912826), 1 Fore Street Avenue London EC2Y 9DT. To see our privacy policy, > visit our website @ www.tradeweb.com. >
