/_cluster/stats.nodes.fs.total_in_bytes with different sizes

Elastic Stack Elasticsearch
1

Hello,

i'm running ES cluster v2.4.1 over mesos in docker and I can see this differences in 4 different nodes in the same cluster, this cluster is in GREEN healthy:

curl -s "http://$ip:$port/_cluster/stats" | jq '.nodes.fs.total_in_bytes'
ip 10.x.y.175 port 25833
3834119962624
ip 10.x.y.176 port 40818
3834119962624
ip 10.x.y.177 port 40475
2875589971968
ip 10.x.y.178 port 62766
2875589971968

Why i can see different values in cluster stats?
Should I worry about that?

2

Hi,

This is the report if we call every single node in his _cluster/stats API.

carlos.portillo$ curl -s -XGET 'http://bcn1-server-178:62766/_cluster/stats/?pretty' | grep fs -A5 | grep "total_in_bytes" | sed 's/.$//' | awk {' value = $3 / 1024 / 1024 /1024 ; print value'}
2678.1
carlos.portillo$ curl -s -XGET 'http://bcn1-server-177:40475/_cluster/stats/?pretty' | grep fs -A5 | grep "total_in_bytes" | sed 's/.$//' | awk {' value = $3 / 1024 / 1024 /1024 ; print value'}
2678.1
carlos.portillo$ curl -s -XGET 'http://bcn1-server-176:40818/_cluster/stats/?pretty' | grep fs -A5 | grep "total_in_bytes" | sed 's/.$//' | awk {' value = $3 / 1024 / 1024 /1024 ; print value'}
3570.8
carlos.portillo$ curl -s -XGET 'http://bcn1-server-175:25833/_cluster/stats/?pretty' | grep fs -A5 | grep "total_in_bytes" | sed 's/.$//' | awk {' value = $3 / 1024 / 1024 /1024 ; print value'}
3570.8

We don't understand why every node, reports a different cluster size.

3

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