How many nodes in es cluster and how much jvm memory of each nodes in esrally benchmark

Elastic Stack Elasticsearch
1

in this web : https://elasticsearch-benchmarks.elastic.co/#tracks/pmc/nightly/default/30d

there have add-4g-3nodes, add-4g and some other metric name.
my question is:

  1. add-4g-3nodes: Is the cluster have three nodes, and each node have 4g memory of jvm, and master and data role is in the same node ?
  2. add-4g: Is the cluster only have one node? and just 4g memory ??
2

Hello,

The answer to both your questions is yes.
add-4g-3nodes refers to a 3 node Elasticsearch cluster using 4G heap; there are no dedicated master nodes.
add-4g indeed is the same as add-4g-3nodes but with just 1 node.

Dimitris

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4

how many cpu core of each node?

and if disable transparent_hugepage, what about indexing performance?
we only have 50,000 of nyc_taxis-indexing-throughput.

5

You can find the CPU model for the ES nodes in https://elasticsearch-benchmarks.elastic.co/ i.e.

$ lscpu
Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                8
On-line CPU(s) list:   0-7
Thread(s) per core:    2
Core(s) per socket:    4
Socket(s):             1
NUMA node(s):          1
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 158
Model name:            Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz

Our results (way back in 2018) showed a drop no more than 8% in specific tracks like geonames.

For a methodological approach to troubleshooting performance issues, I suggest watching @danielmitterdorfer 's talk about The Seven Deadly Sins of Elasticsearch Benchmarking.

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6

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