I am using elasticsearch 6.5 and i want to have cluster node 6

[Ayush_Verma]

I am working on elasticsearch 6.5 and i don't know much about it , so my task is to add cluster node , i guess initially number of node is 1 right? if i am right then please tell me how can i make it up to 6, i already read the documentation but i can't get it, one more suggestion i got to install elasticsearch multiple time and give different node name or something like that but what i feel is there must be some simple way to do it

actually this is the exact requirement that i want:-

Cluster Nodes : 6
Master Eligible Nodes : 2 (both the micro instances). These are Master only nodes.
Data Only Nodes : 4 (2 regular nad 2 preemptible instances)
Number of shards : 8
Number of replica sets : 2

[dadoonet (David Pilato)]

• Start a new machine
• Install elasticsearch
• Configure elasticsearch as per documentation
• Start elasticsearch

And repeat that again.

[Ayush_Verma]

Well thank you , but i want to do it in same machine , is it possible or i am going wrong ?

[dadoonet (David Pilato)]

It is.
Specifically if you have more than 64gb of RAM available, then I'd start 2 nodes with 30gb heap each and one tie breaker master only node with 4 or 8gb. Is it the case?

If not, I don't see a lot of value of doing so.
Why do you want to do this?

[Ayush_Verma]

ohh well i don't have 64gb of RAM , let me explain you whole scenario i am using google cloud platform and my senior ask me to configure elasticsearch with the above requirement , requirement as i mentioned above with cluster node 6 and all. so i thought first i should practice to add the node in my own machine then i will shift to google cloud but as you tell we need 64gb of RAM to do this, but i don't have 64GB of RAM.

also tried steps of this link but it not worked or may be i did something wrong, can you please go through this link and tell is this the right way to complete my task.

https://www.elastic.co/guide/en/elastic-stack-overview/6.5/encrypting-communications-hosts.html

[dadoonet (David Pilato)]

The easiest thing to do is to create a cluster on cloud.elastic.co on GCP platform in the same region you have your other services running and just set the memory size that you need.

Why 6 nodes are needed in your case? Do you know?

[Ayush_Verma]

Ok so you are asking me to set the size of GCP instance i mean system memory size ?
Sorry i don't know about that. But i will ask.
or is there any way to allocate memory to nodes like each node will take 1GB or something , i know i am asking very silly question.

[dadoonet (David Pilato)]

I did not mean anything like that.

Again:

Why 6 nodes are needed in your case? Do you know?

What is the output of:

GET /
GET /_cat/nodes?v
GET /_cat/health?v
GET /_cat/indices?v

If some outputs are too big, please share them on gist.github.com and link them here.

[Ayush_Verma]

i am sharing screenshot is it ok?

soon i will tell about 6 nodes let me ask my senior and sorry for delay

[dadoonet (David Pilato)]

Please don't post images of text as they are hardly readable and not searchable.

Instead paste the text and format it with </> icon. Check the preview window.

You don't have any data?
While you are asking questions, could you also ask why you are starting with a 6.5 version instead of 7.2?

[Ayush_Verma]

output of the command that you asked for :
https://gist.github.com/ayush-ashu/4db540b956a33a5cb170fd422e703b55

and i asked about nodes , he simply replied that we are handling very large data that's why need 6 node(Although he was also not sure).