Since a few days I am working on elasticsearch deployment. I prepaired 3 nodes cluster, master, data and ingest each.I created a benchmark with esrally on this cluster.The thing that makes me wonder is that some of the metrics are less than zero, as the following pastebin presents. [1]Command I executed to achieve metrics:esrally --pipeline=benchmark-only  --target-hosts=ip-172-16-9-81.eu-central-1.compute.internal:9200,ip-172-16-30-148.eu-central-1.compute.internal:9200,ip-172-16-88-171.eu-central-1.compute.internal:9200esrally version:    $ esrally --version    esrally 0.5.3elasticsearch version:     $ curl localhost:9200    {      name : es-a,      cluster_name : escluster,      cluster_uuid : w062CPAWSHitouvxxb5Big,      version : {        number : 5.4.0,        build_hash : 780f8c4,        build_date : 2017-04-28T17:43:27.229Z,        build_snapshot : false,        lucene_version : 6.5.0      },      tagline : You Know, for Search    }Metrics that confuse me are in a few first lines in my pastebin. For example; how time can be less than zero?
Elasticsearch - less than zero metric
cluster;benchmark;elasticsearch