I guess those splashes were caused by AAE, because eventually it became normal:
https://www.dropbox.com/s/zjemsub9astjhiw/Screenshot%202014-12-07%2017.36.45.png?dl=0 On 6 December 2014 at 14:27, Oleksiy Krivoshey <[email protected]> wrote: > Hi, > > Can someone please explain the strange behaviour I'm experiencing with > node_gets stats vs vnode_gets on this histograms (screenshot): > > > https://www.dropbox.com/s/yrd7wg5q4ipfvk0/Screenshot%202014-12-06%2014.16.13.png?dl=0 > > According to: > http://docs.basho.com/riak/latest/ops/running/nodes/inspecting/ > > node_gets - Number of GETs coordinated by this node, including GETs to > non-local vnodes in the last minute > > vnode_gets - Number of GET operations coordinated by local vnodes on this > node in the last minute > > My questions which I don't understand: > > 1. How can vnode_gets be larger than node_gets by 50x on a 5 node cluster? > If I understand the doc correctly, it can't be larger than sum of node_gets > on all nodes? > > 2. I can't explain those periodic splashes in vnode_gets each hour. There > are no such splashes on node_gets at the same periods and there is no > periodic load caused by my application. What can be the reason? AAE? > > Thanks! > > -- > Oleksiy Krivoshey > -- Oleksiy Krivoshey
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