The 4th node has even less data node than the others. And I check the connections to the port 9160 counts among the nodes. This node also has less connections. So it is really strange...
On Sat, Nov 14, 2015 at 5:50 AM, Robert Coli <rc...@eventbrite.com> wrote: > On Thu, Nov 12, 2015 at 10:35 PM, Shuo Chen <chenatu2...@gmail.com> wrote: > >> We have a small cassandra cluster with 4 nodes for production. All the >> nodes have similar hardware configuration and similar data load. The C* >> version is 1.0.7 (prretty old) >> >> One of the node has much higher cpu usage than others and high full gc >> frequency, but the io of this node is not high and data load of this node >> is even lower. So I have several questions: >> > > The simplest explanation is that your 4th node is the only node your > clients ever talk to. > > Other simple explanations include "the 4th node owns more of the ring than > other nodes do." > > =Rob > > -- *陈硕* *Shuo Chen* chenatu2...@gmail.com chens...@whaty.com